1
40V Extended Temperature Range, Precision
Single-Supply, Rail-to-Rail Output, Operational Amplifier
ISL28118M
The ISL28118M is a single, low-power precision amplifier
optimized for single-supply applications over the extended
temperature range of -55°C to +125°C. This device features a
common mode input voltage range extending to 0.5V below
the V- rail, a rail-to-rail differential input voltage range for use
as a comparator, and rail-to-rail output voltage swing, which
makes it ideal for single-supply applications where input
operation at ground is important.
The ISL28118M features low power, low offset voltage, and
low temperature drift, making it the ideal choice for
applications requiring both high DC accuracy and AC
performance. The op amp is designed to operate over a single
supply range of 3V to 40V or a split supply voltage range of
+1.8V/-1.2V to ±20V. The combination of precision and small
footprint provides the user with outstanding value and
flexibility relative to similar competitive parts.
Applications include precision instrumentation, data
acquisition, precision power supply controls, and industrial
controls.
The ISL28118M is offered in the 8 Ld MSOP package and
operate over the extended temperature range of -55°C to
+125°C.
Features
• Rail-to-rail output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <10mV
• Below-ground (V-) input capability to -0.5V
• Rail-to-rail input differential voltage range for comparator
applications
• Single-supply range . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 40V
• Low current consumption . . . . . . . . . . . . . . . . . . . . . . . . 850µA
• Low noise voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . 5.6nV/√Hz
• Low noise current. . . . . . . . . . . . . . . . . . . . . . . . . . . 355fA/√Hz
• Low input offset voltage . . . . . . . . . . . . . . . . . . . . 150µV Max.
• Superb offset voltage temperature drift. . . . 1.2µV/°C, Max.
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C
• No phase reversal
Applications
• Precision instruments
• Medical instrumentation
• Data acquisition
•Power supply control
• Industrial process control
FIGURE 1. TYPICAL APPLICATION: SINGLE-SUPPLY, LOW-SIDE
CURRENT SENSE AMPLIFIER
FIGURE 2. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE
VOLTAGE, -40°C to +125°C, VS = ±15V
IN-
IN+
RF
RREF+
ISL28118M
+3V
V-
V+
RIN-
10kΩ
RIN+
10kΩ
-
+
100kΩ
VREF
100kΩ
VOUT
LOAD
RSENSE
GAIN = 10
to 40V
VOS (µV)
INPUT COMMON MODE VOLTAGE (V)
-400
-300
-200
-100
0
100
200
300
400
-16 -15 -14 -13 13 14 15 16
-40°C
+25°C
+125°C
-55°C
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC 2011, 2014. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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Table of Contents
Pin Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Thermal Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical Specifications, VS ±15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical Specifications, VS ±5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical Performance Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Input Stage Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Output Drive Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Output Phase Reversal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
ISL28118M SPICE Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Characterization vs Simulation Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
About Intersil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
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Pin Configurations
ISL28118M
(8 LD MSOP)
TOP VIEW
NC
-IN
+IN
V-
1
2
3
4
8
7
6
5
NC
V+
VOUT
NC
+-
Pin Descriptions
ISL28118M
(8 LD MSOP)
PIN
NAME
EQUIVALENT
CIRCUIT DESCRIPTION
3 +IN 1 Amplifier A non-inverting input
2 -IN 1 Amplifier A inverting input
6 VOUT 2 Amplifier A output
4V
-3 Negative power supply
7V
+3 Positive power supply
1, 5, 8 NC - No Connect
V+
V-
OUT
CIRCUIT 2CIRCUIT 1
V+
V-
CIRCUIT 3
IN-
V+
V-
IN+
CAPACITIVELY
TRIGGERED ESD
CLAMP
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL28118MUZ 8118M -55 to +125 8 Ld MSOP M8.118B
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see product information page for ISL28118M. For more information on MSL, please see tech brief TB363.
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Absolute Maximum Ratings Thermal Information
Maximum Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42V
Maximum Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
Maximum Differential Input Voltage . . . . . . . .42V or V- - 0.5V to V+ + 0.5V
Min/Max Input Voltage . . . . . . . . . . . . . . . . . . .42V or V- - 0.5V to V+ + 0.5V
Max/Min Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20mA
Output Short-Circuit Duration (1 output at a time) . . . . . . . . . . . . . . Indefinite
ESD Tolerance
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . . . 3kV
Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . . 300V
Charged Device Model (Tested per CDM-22CI0ID). . . . . . . . . . . . . . . 2kV
Thermal Resistance (Typical) θJA (°C/W) θJC (°C/W)
8 Ld MSOP Package (Notes 4, 5) . . . . . . . . . 165 57
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Operating Conditions
Ambient Operating Temperature Range . . . . . . . . . . . . . .-55°C to +125°C
Maximum Operating Junction Temperature . . . . . . . . . . . . . . . . . .+150°C
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . 3V (+1.8V/-1.2V) to 40V (±20V)
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
5. For θJC, the “case temp” location is taken at the package top center.
Electrical Specifications, VS ±15 VCM = 0, VO = 0V, RL = Open, TA= +25°C, unless otherwise noted. Boldface limits apply across the
operating temperature range, -55°C to +125°C. Temperature data established by characterization.
PARAMETER DESCRIPTION CONDITIONS
MIN
(Note 6) TYP
MAX
(Note 6) UNIT
VOS Input Offset Voltage -150 25 150 µV
-270 270 µV
TCVOS Input Offset Voltage Temperature Coefficient -1.2 0.2 1.2 µV/°C
IBInput Bias Current -575 -230 nA
-800 nA
TCIBInput Bias Current
Temperature Coefficient
-0.8 nA/°C
IOS Input Offset Current -50 4 50 nA
-75 75 nA
CMRR Common-Mode Rejection Ratio VCM = V- - 0.5V to V+ - 1.8V 118 dB
VCM = V- to V+ -1.8V 102 118 dB
97 dB
VCMIR Common Mode Input Voltage Range Guaranteed by CMRR test V- - 0.5 V+ - 1.8 V
V- V
+ - 1.8 V
PSRR Power Supply Rejection Ratio VS = 3V to 40V, VCMIR = Valid Input Voltage 109 124 dB
105 dB
AVOL Open-Loop Gain VO = -13V to +13V, RL = 10kΩ to ground 120 136 dB
114 dB
VOL Output Voltage Low,
VOUT to V-
RL = 10kΩ70 mV
85 mV
VOH Output Voltage High,
V+ to VOUT
RL = 10kΩ110 mV
120 mV
ISSupply Current/Amplifier RL = Open 0.85 1.2 mA
1.6 mA
ISC+ Output Short Circuit Source Current RL = 10Ω to V-16 mA
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ISC- Output Short Circuit Sink Current RL = 10Ω to V+28 mA
VSUPPLY Supply Voltage Range Guaranteed by PSRR 3 40 V
AC SPECIFICATIONS
GBWP Gain Bandwidth Product ACL = 101, VOUT = 100mVP-P; RL = 2k 4 MHz
enp-p Voltage Noise 0.1Hz to 10Hz, VS = ±18V 300 nVP-P
enVoltage Noise Density f = 10Hz, VS = ±18V 8.5 nV/√Hz
enVoltage Noise Density f = 100Hz, VS = ±18V 5.8 nV/√Hz
enVoltage Noise Density f = 1kHz, VS = ±18V 5.6 nV/√Hz
enVoltage Noise Density f = 10kHz, VS = ±18V 5.6 nV/√Hz
in Current Noise Density f = 1kHz, VS = ±18V 355 fA/√Hz
THD + N Total Harmonic Distortion + Noise 1kHz, G = 1, VO = 3.5VRMS, RL = 10kΩ0.0003 %
TRANSIENT RESPONSE
SR Slew Rate AV = 1, RL = 2kΩ, VO = 10VP-P ±1.2 V/µs
tr, tf, Small
Signal
Rise Time
10% to 90% of VOUT
AV
= 1,
VOUT = 100mVP-P
, Rf = 0Ω, R
L
=2k
Ω to
VCM
100 ns
Fall Time
90% to 10% of VOUT
AV
= 1,
VOUT = 100mVP-P
, Rf = 0Ω,
R
L
= 2k
Ω to VCM
100 ns
tsSettling Time to 0.01%
10V Step; 10% to VOUT
AV
= 1,
VOUT = 10VP-P
, Rf = 0Ω
R
L
=2k
Ω to VCM
8.5 µs
Electrical Specifications, VS ±15 VCM = 0, VO = 0V, RL = Open, TA= +25°C, unless otherwise noted. Boldface limits apply across the
operating temperature range, -55°C to +125°C. Temperature data established by characterization. (Continued)
PARAMETER DESCRIPTION CONDITIONS
MIN
(Note 6) TYP
MAX
(Note 6) UNIT
Electrical Specifications, VS ±5V VCM = 0, VO = 0V, TA = +25°C, unless otherwise noted. Boldface limits apply over the operating
temperature range, -55°C to +125°C. Temperature data established by characterization.
PARAMETER DESCRIPTION CONDITIONS
MIN
(Note 6) TYP
MAX
(Note 6) UNIT
VOS Input Offset Voltage -150 25 150 µV
-270 270 µV
TCVOS Input Offset Voltage Temperature
Coefficient
-1.2 0.2 1.2 µV/°C
IBInput Bias Current -575 -230 nA
-800 nA
TCIBInput Bias Current
Temperature Coefficient
-0.8 nA/°C
IOS Input Offset Current -50 4 50 nA
-75 75 nA
CMRR Common-Mode Rejection Ratio VCM = V- - 0.5V to V+ - 1.8V 119 dB
VCM = V- to V+ -1.8V 101 117 dB
96 dB
VCMIR Common Mode Input Voltage
Range
Guaranteed by CMRR test V- - 0.5 V+ - 1.8 V
V-V+ - 1.8 V
PSRR Power Supply Rejection Ratio VS = 3V to 10V, VCMIR = Valid Input Voltage 108 124 dB
103 dB
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AVOL Open-Loop Gain VO = -3V to +3V, RL = 10kΩ to ground 120 132 dB
110 dB
VOL Output Voltage Low,
VOUT to V-
RL = 10kΩ38 mV
45 mV
VOH Output Voltage High,
V+ to VOUT
RL = 10kΩ65 mV
70 mV
ISSupply Current/Amplifier RL = Open 0.85 1.1 mA
1.4 mA
ISC+ Output Short Circuit Source Current RL = 10Ω to V-13 mA
ISC- Output Short Circuit Sink Current RL = 10Ω to V+20 mA
AC SPECIFICATIONS
GBWP Gain Bandwidth Product ACL = 101, VOUT = 100mVP-P; RL = 2k 3.2 MHz
enp-p Voltage Noise 0.1Hz to 10Hz 320 nVP-P
enVoltage Noise Density f = 10Hz 9 nV/√Hz
enVoltage Noise Density f = 100Hz 5.7 nV/√Hz
enVoltage Noise Density f = 1kHz 5.5 nV/√Hz
enVoltage Noise Density f = 10kHz 5.5 nV/√Hz
in Current Noise Density f = 1kHz 380 fA/√Hz
THD + N Total Harmonic Distortion + Noise 1kHz, G = 1, VO = 1.25VRMS, RL=10kΩ0.0003 %
TRANSIENT RESPONSE
SR Slew Rate AV = 1, RL = 2kΩ, VO = 4VP-P ±1 V/µs
tr, tf, Small
Signal
Rise Time
10% to 90% of VOUT
AV
= 1,
VOUT = 100mVP-P , Rf = 0Ω, R
L
=2k
Ω to
VCM
100 ns
Fall Time
90% to 10% of VOUT
AV
= 1,
VOUT = 100mVP-P , Rf = 0Ω,
R
L
= 2k
Ω to VCM
100 ns
tsSettling Time to 0.01%
4V Step; 10% to VOUT
AV
= 1,
VOUT = 4VP-P
, Rf = 0Ω
R
L
=2k
Ω to VCM
4µs
NOTE:
6. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
Electrical Specifications, VS ±5V VCM = 0, VO = 0V, TA = +25°C, unless otherwise noted. Boldface limits apply over the operating
temperature range, -55°C to +125°C. Temperature data established by characterization. (Continued)
PARAMETER DESCRIPTION CONDITIONS
MIN
(Note 6) TYP
MAX
(Note 6) UNIT
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Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified.
FIGURE 3. ISL28118M INPUT OFFSET VOLTAGE DISTRIBUTION,
VS = ±15V
FIGURE 4. ISL28118M INPUT OFFSET VOLTAGE DISTRIBUTION,
VS = ±5V
FIGURE 5. VOS vs TEMPERATURE FIGURE 6. INPUT OFFSET VOLTAGE vs INPUT COMMON MODE
VOLTAGE, -55°C to +125°C, VS = ±15V
FIGURE 7. IBIAS vs VSFIGURE 8. IBIAS vs TEMPERATURE vs SUPPLY
VOS (µV)
NUMBER OF AMPLIFIERS
0
10
20
30
40
50
60
70
80
90
-120
-100
-80
-60
-40
-20
0
20
40
60
80
100
120
VS = ±15V
VOS (µV)
NUMBER OF AMPLIFIERS
-120
-100
-80
-60
-40
-20
0
20
40
60
80
100
120
0
10
20
30
40
50
60
70
80
VS = ±5V
0
10
20
30
40
50
60
70
80
90
100
VOS (µV)
TEMPERATURE (°C)
-60 -40 -20 0 20 40 60 80 100 120
VS = ±15V
VS = ±5V
VOS (µV)
INPUT COMMON MODE VOLTAGE (V)
-400
-300
-200
-100
0
100
200
300
400
-16 -15 -14 -13 13 14 15 16
-40°C
+25°C
+125°C
-55°C
IBIAS (nA)
-500
-450
-400
-350
-300
-250
-200
-150
-100
-50
0
2 4 6 8 10121416182022242628303234363840
VS (V)
TEMPERATURE (°C)
-60 -40 -20 0 20 40 60 80 100 120
IBIAS (nA)
-400
-350
-300
-250
-200
-150
VS = ±20V
VS = ±15V
VS = +2V/ -1V
VS = ±2.25V
VS = ±5V
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FIGURE 9. ISL28118M CMRR vs TEMPERATURE, VS = ±15V FIGURE 10. ISL28118M CMRR vs TEMPERATURE, VS = ±5V
FIGURE 11. CMRR vs FREQUENCY, VS = ±15V FIGURE 12. PSRR vs TEMPERATURE, VS = ±15V
FIGURE 13. PSRR vs FREQUENCY, VS = ±15V FIGURE 14. PSRR vs FREQUENCY, VS = ±5V
Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
TEMPERATURE (°C)
-60 -40 -20 0 20 40 60 80 100 120
CMRR (dB)
110
112
114
116
118
120
122
124
TEMPERATURE (°C)
-60 -40 -20 0 20 40 60 80 100 120
CMRR (dB)
110
112
114
116
118
120
122
124
CMRR (dB)
FREQUENCY (Hz)
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
1m 1 10 100 1k 10k 100k 1M 10M 100M 1G0.1
0.01
VS = ±15V
SIMULATION
TEMPERATURE (°C)
-60 -40 -20 0 20 40 60 80 100 120
100
105
110
115
120
125
130
135
140
PSRR (dB)
10 100 1k 10k 100k 1M 10M
PSRR (dB)
FREQUENCY (Hz)
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
VS = ±15V
CL = 4pF
VCM = 1VP-P
RL = 10k
AV = 1
PSRR+
PSRR-
10 100 1k 10k 100k 1M 10M
PSRR (dB)
FREQUENCY (Hz)
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
VS = ±5V
CL = 4pF
VCM = 1VP-P
RL = 10k
AV = 1
PSRR-
PSRR+
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FIGURE 15. OPEN-LOOP GAIN, PHASE vs FREQUENCY, VS = ±15V FIGURE 16. FREQUENCY RESPONSE vs CLOSED LOOP GAIN
FIGURE 17. GAIN vs FREQUENCY vs RL, VS = ±15V FIGURE 18. GAIN vs FREQUENCY vs RL, VS = ±5V
FIGURE 19. GAIN vs FREQUENCY vs OUTPUT VOLTAGE FIGURE 20. GAIN vs FREQUENCY vs SUPPLY VOLTAGE
Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
-100
-80
-60
-40
-20
0
20
40
60
80
100
120
140
160
180
200
1m 1 10 100 1k 10k 100k 1M 10M100M 1G
GAIN (dB)
FREQUENCY (Hz)
0.1
VS = ±15V
RL = 1MΩ
0.01
PHASE
GAIN
-10
0
10
20
30
40
50
60
70
1k 10k 100k 1M 10M
GAIN (dB)
FREQUENCY (Hz)
ACL = 1
ACL = 10
ACL = 100
ACL = 1000
VS = ±5V & ±15V
CL = 4pF
VOUT = 100mVP-P
RL = 2k
100
RF = 10kΩ, RG = 1kΩ
RF = 0, RG = ∞
RF = 10kΩ, RG = 100Ω
RF = 10kΩ, RG = 10Ω
FREQUENCY (Hz)
NORMALIZED GAIN (dB)
100k 1M 10M
10k
1k
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
100
VS = ±15V
AV = +1
VOUT = 100mVp-p
CL = 4pF
RL = 1k
RL = 499
RL = 100
RL = 49.9
RL = OPEN, 100k, 10k
FREQUENCY (Hz)
NORMALIZED GAIN (dB)
100k 1M 10M10k1k
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
100
VS = ±5V
AV = +1
VOUT = 100mVp-p
CL = 4pF
RL = 1k
RL = 499
RL = 100
RL = 49.9
RL = OPEN, 100k, 10k
FREQUENCY (Hz)
NORMALIZED GAIN (dB)
100k 1M 10M10k1k
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
100
VS = ±5V
AV = +1
RL = INF
CL = 4pF
VOUT = 100mVP-P
VOUT = 50mVP-P
VOUT = 10mVP-P
VOUT = 1VP-P
VOUT = 500mVP-P
NORMALIZED GAIN (dB)
FREQUENCY (Hz)
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
100 1k 10k 100k 1M 10M
CL = 4pF
RL = 10k
AV = +1
VOUT = 100mVP-P
VS = ±1.5V
VS = ±5V
VS = ±15V
ISL28118M
10 FN7858.1
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FIGURE 21. OUTPUT OVERHEAD VOLTAGE vs TEMPERATURE,
VS = ±15V, RL=10k
FIGURE 22. OUTPUT OVERHEAD VOLTAGE vs TEMPERATURE,
VS = ±5V, RL=10k
FIGURE 23. OUTPUT OVERHEAD VOLTAGE HIGH vs LOAD CURRENT,
-40°C to +125°C, VS = ±5V AND ±15V
FIGURE 24. OUTPUT OVERHEAD VOLTAGE LOW vs LOAD CURRENT,
-40°C to +125°C, VS = ±5V AND ±15V
FIGURE 25. ISL28118M SUPPLY CURRENT vs TEMPERATURE vs
SUPPLY VOLTAGE
FIGURE 26. SUPPLY CURRENT vs SUPPLY VOLTAGE
Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
TEMPERATURE (°C)
-60 -40 -20 0 20 40 60 80 100 120
40
50
60
70
80
90
100
VOH AND VOL (mV)
VS = ±15V
RL = 10k VOH
VOL
TEMPERATURE (°C)
-60 -40 -20 0 20 40 60 80 100 120
20
22
24
26
28
30
32
34
36
38
40
VS = ±5V
RL = 10k
V
OH
AND V
OL
(mV)
VOH
VOL
V
+
- VOH (V)
LOAD CURRENT (mA)
0.001
0.01
0.1
1
0.001 0.01 0.1 1
VS = ±5V and ±15V +125°C
-40°C
+25°C
10
LOAD CURRENT (mA)
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10
VS = ±5V and ±15V
VOL - V
-
(V)
-40°C
+25°C
+125°C
TEMPERATURE (°C)
-60 -40 -20 0 20 40 60 80 100 120
CURRENT (µA)
400
600
800
1000
1200
1400
1600
VS = ±15V
VS = ±2.25V
VS = ±21V
0
100
200
300
400
500
600
700
800
900
1000
1100
024681012141618202224262830323436384042
I
SUPPLY
PER AMPLIFIER (µA)
VSUPPLY (V)
ISL28118M
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FIGURE 27. INPUT NOISE VOLTAGE (en) AND INPUT NOISE
CURRENT (in) vs FREQUENCY, VS = ±18V
FIGURE 28. INPUT NOISE VOLTAGE (en) AND INPUT NOISE
CURRENT (in) vs FREQUENCY, VS = ±5V
FIGURE 29. INPUT NOISE VOLTAGE 0.1Hz TO 10Hz, VS= ±18V FIGURE 30. INPUT NOISE VOLTAGE 0.1Hz TO 10Hz, VS= ±5V
FIGURE 31. THD+N vs FREQUENCY vs TEMPERATURE,
AV = 1,10, RL = 2k
FIGURE 32. THD+N vs FREQUENCY vs TEMPERATURE,
AV=1, 10,R
L = 10k
Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
0.1
1
10
100
0.1
1
10
100
0.1 1 10 100 1k 10k 100k
INPUT NOISE VOLTAGE (nV/√Hz)
FREQUENCY (Hz)
INPUT NOISE CURRENT (fA/√Hz)
INPUT NOISE VOLTAGE
INPUT NOISE CURRENT
VS = ±18V
0.1
1
10
100
0.1
1
10
100
0.1 1 10 100 1k 10k 100k
INPUT NOISE VOLTAGE (nV/√Hz)
FREQUENCY (Hz)
INPUT NOISE CURRENT (fA/√Hz)
INPUT NOISE VOLTAGE
INPUT NOISE CURRENT
VS = ±5V
INPUT NOISE VOLTAGE (nV)
012345678910
TIME (s)
-500
-400
-300
-200
-100
0
100
200
300
400
500
VS = ±18V
AV = 10k
INPUT NOISE VOLTAGE (nV)
012345678910
TIME (s)
-500
-400
-300
-200
-100
0
100
200
300
400
500
VS = ±5V
AV = 10k
0.0001
0.001
0.01
0.1
10 100 1k 10k 100k
THD + N (%)
FREQUENCY (Hz)
AV = 1
AV = 10
+125°C
+125°C +25°C
VS = ±15V
CL = 4pF
VOUT = 10VP-P
RL = 2k
C = WEIGHTED
22Hz TO 500kHz
-40°C
-40°C
+25°C
0.0001
0.001
0.01
0.1
10 100 1k 10k 100k
THD + N (%)
FREQUENCY (Hz)
AV = 1
AV = 10
+125°C
+125°C +25°C
VS = ±15V
CL = 4pF
VOUT = 10VP-P
RL = 10k
C = WEIGHTED
22Hz TO 500kHz
+25°C
-40°C
-40°C
ISL28118M
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FIGURE 33. THD+N vs OUTPUT VOLTAGE (VOUT) vs TEMPERATURE,
AV = 1, 10, RL = 2k
FIGURE 34. THD+N vs OUTPUT VOLTAGE (VOUT) vs TEMPERATURE,
AV = 1, 10, RL = 10k
FIGURE 35. LARGE SIGNAL 10V STEP RESPONSE, VS= ±15V FIGURE 36. LARGE SIGNAL 4V STEP RESPONSE, VS= ±5V
FIGURE 37. SMALL SIGNAL TRANSIENT RESPONSE,
VS = ±5V, ±15V
FIGURE 38. NO PHASE REVERSAL
Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
0.0001
0.001
0.01
0.1
1
0 5 10 15 20 25 30
VOUT (VP-P)
THD + N (%)
AV = 1
AV = 10
-40°C
+125°C
-40°C
VS = ±15V
CL = 4pF
f = 1kHz
RL = 2k
C = WEIGHTED
22Hz TO 22kHz
+25°C
+25°C
+125°C
0.0001
0.001
0.01
0.1
1
0 5 10 15 20 25 30
VOUT (VP-P)
THD + N (%)
AV = 1
AV = 10
-40°C
+25°C
+125°C
-40°C
VS = ±15V
CL = 4pF
f = 1kHz
RL = 10k
C = WEIGHTED
22Hz TO 22kHz
+125°C
+25°C
0.01
0.1
-6
-4
-2
0
2
4
6
0 102030405060708090100
V
OUT
(V)
TIME (µs)
VS = ±15V
AV = 1
RL = 2k
CL = 4pF
0 102030405060708090100
V
OUT
(V)
TIME (µs)
-2.4
-2.0
-1.6
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
1.6
2.0
2.4
VS = ±5V
AV = 1
RL = 2k
CL = 4pF
V
OUT
(V)
TIME (µs)
-100
-80
-60
-40
-20
0
20
40
60
80
100
0 0.20.40.60.81.01.21.41.61.8 2
VS = ±15V
AV = 1
RL = 2k
CL = 4pF
VS = ±5V
AND
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
01234
TIME (ms)
VS = ±5V
VIN = ±5.9V
OUTPUT
INPUT
INPUT AND OUTPUT (V)
ISL28118M
13 FN7858.1
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FIGURE 39. POSITIVE OUTPUT OVERLOAD RESPONSE TIME,
VS = ±15V
FIGURE 40. NEGATIVE OUTPUT OVERLOAD RESPONSE TIME,
VS = ±15V
FIGURE 41. POSITIVE OUTPUT OVERLOAD RESPONSE TIME,
VS = ±5V
FIGURE 42. NEGATIVE OUTPUT OVERLOAD RESPONSE TIME,
VS = ±5V
FIGURE 43. OUTPUT IMPEDANCE vs FREQUENCY, VS = ±15V FIGURE 44. OUTPUT IMPEDANCE vs FREQUENCY, VS = ±5V
Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
OUTPUT (V)
INPUT (mV)
TIME (µs)
0
4
8
12
16
20
0
40
80
120
160
200
0 4 8 1216202428323640
OUTPUT
INPUT VS = ±15V
AV = 100
VIN = 100mVP-P
OVERDRIVE = 1V
RL = 10k
OUTPUT (V)
INPUT (mV)
TIME (µs)
-20
-16
-12
-8
-4
0
-200
-160
-120
-80
-40
0
0 4 8 12 16 20 24 28 32 36 40
VS = ±15V
AV = 100
VIN = 100mVP-P
OVERDRIVE = 1V
RL = 10k
OUTPUT
INPUT
OUTPUT (V)
INPUT (mV)
TIME (µs)
0
1
2
3
4
5
6
0
10
20
30
40
50
60
0 4 8 1216202428323640
VS = ±5V
AV = 100
VIN = 50mVP-P
OVERDRIVE = 1V
RL = 10k
OUTPUT
INPUT
OUTPUT (V)
INPUT (mV)
TIME (µs)
0 4 8 12 16 20 24 28 32 36 40
-6
-5
-4
-3
-2
-1
0
-60
-50
-40
-30
-20
-10
0
VS = ±5V
AV = 100
VIN = 50mVP-P
OVERDRIVE = 1V
RL = 10k
OUTPUT
INPUT
0.01
0.10
1
10
100
10 100 1k 10k 100k 1M 10M
Z
OUT
(Ω)
FREQUENCY (Hz)
1
VS = ±15V
AV = 10
AV = 100
AV = 1
0.01
0.10
1
10
100
10 100 1k 10k 100k 1M 10M
Z
OUT
(Ω)
FREQUENCY (Hz)
1
VS = ±5V
AV = 100
AV = 1
AV = 10
ISL28118M
14 FN7858.1
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FIGURE 45. OVERSHOOT vs CAPACITIVE LOAD, VS= ±15V FIGURE 46. OVERSHOOT vs CAPACITIVE LOAD, VS= ±5V
FIGURE 47. ISL28118M SHORT CIRCUIT CURRENT vs
TEMPERATURE, VS = ±15V
FIGURE 48. MAX OUTPUT VOLTAGE vs FREQUENCY
Typical Performance Curves VS = ±15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
OVERSHOOT (%)
LOAD CAPACITANCE (nF)
0
10
20
30
40
50
60
0.001 0.010 0.100 1 10 100
VS = ±15V
VOUT = 100mVP-P
AV = -1
AV = 1
AV = 10
OVERSHOOT (%)
LOAD CAPACITANCE (nF)
0
10
20
30
40
50
60
0.001 0.01 0.1 1 10 100
VS = ±5V
VOUT = 100mVP-P
AV = 10
AV = -1
AV = 1
TEMPERATURE (°C)
-60 -40 -20 0 20 40 60 80 100 120
10
12
14
16
18
20
22
24
26
28
30
I
SC
(mA)
ISC-SOURCE
VS = ±15V
RL = 10k
ISC-SINK
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
1k 10k 100k 1M
V
OUT
(V
P-P
)
FREQUENCY (Hz)
VS = ±15V
AV = 1
ISL28118M
15 FN7858.1
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Applications Information
Functional Description
The ISL28118M is a 3.2MHz, single-supply, rail-to-rail output
amplifier with a common mode input voltage range extending to
a range of 0.5V below the V- rail. The input stage is optimized for
precision sensing of ground-referenced signals in single-supply
applications. The input stage is able to handle large input
differential voltages without phase inversion, making this
amplifier suitable for high-voltage comparator applications. The
bipolar design features high open loop gain, excellent DC
input/output temperature stability with a low quiescent current
of 850µV, and low temperature drift. The op amp is fabricated in
a new precision 40V complementary bipolar DI process and is
immune from latch-up.
Operating Voltage Range
The op amp is designed to operate over a single supply range of 3V
to 40V or a split supply voltage range of +1.8V, -1.2V to ±20V. The
device is fully characterized at 10V (±5V) and 30V (±15V). Both DC
and AC performance remain virtually unchanged over the
complete operating voltage range. Parameter variation with
operating voltage is shown in the “Typical Performance Curves”
beginning on page 7.
The input common mode voltage to the V+ rail (V+ -1.8V over the
full temperature range) may limit amplifier operation when
operating from split V+ and V- supplies. Figure 6 shows the
common mode input voltage range variation over-temperature.
Input Stage Performance
The ISL28118M PNP input stage has a common mode input range
extending up to 0.5V below ground at +25°C (Figure 6). Full
amplifier performance is guaranteed with input voltage down to
ground (V-) over the -55°C to +125°C temperature range. For
common mode voltages down to -0.5V below ground (V-), the
amplifiers are fully functional, but performance degrades slightly
over the full temperature range. This feature provides excellent
CMRR, AC performance, and DC accuracy when amplifying
low-level, ground-referenced signals.
The input stage has a maximum input differential voltage equal
to a diode drop greater than the supply voltage (max 42V) and
does not contain the back-to-back input protection diodes found
on many similar amplifiers. This feature enables the device to
function as a precision comparator by maintaining very high
input impedance for high-voltage differential input comparator
voltages. The high differential input impedance also enables the
device to operate reliably in large signal pulse applications,
without the need for anti-parallel clamp diodes required on
MOSFET and most bipolar input stage op amps. Thus, input
signal distortion caused by nonlinear clamps under high slew
rate conditions is avoided.
In applications where one or both amplifier input terminals are at
risk of exposure to voltages beyond the supply rails,
current-limiting resistors may be needed at each input terminal
(see Figure 49, RIN+, RIN-) to limit current through the
power-supply ESD diodes to 20mA.
Output Drive Capability
The bipolar rail-to-rail output stage features low saturation levels
that enable an output voltage swing to less than 15mV when the
total output load (including feedback resistance) is held below
50µA. With ±15V supplies, this can be achieved by using feedback
resistor values >300kΩ.
The output stage is internally current limited. The amplifiers can
withstand a short circuit to either rail as long as the power
dissipation limits are not exceeded. Continuous operation under
these conditions may degrade long-term reliability.
The amplifiers perform well when driving capacitive loads
(Figures 45 and 46). The unity gain, voltage follower (buffer)
configuration provides the highest bandwidth but is also the
most sensitive to ringing produced by load capacitance found in
BNC cables. Unity gain overshoot is limited to 35% at
capacitance values to 0.33nF. At gains of 10 and higher, the
device is capable of driving more than 10nF without significant
overshoot.
Output Phase Reversal
Output phase reversal is a change of polarity in the amplifier
transfer function when the input voltage exceeds the supply
voltage. The ISL28118M is immune to output phase reversal for
input voltage to 0.5V beyond the rail (VABS MAX) limit (Figure 38).
Power Dissipation
It is possible to exceed the +150°C maximum junction
temperatures under certain load and power supply conditions. It
is therefore important to calculate the maximum junction
temperature (TJMAX) for all applications to determine if power
supply voltages, load conditions, or package type need to be
modified to remain in the safe operating area. These parameters
are related using Equation 1:
where
•PD
MAXTOTAL is the sum of the maximum power dissipation of
each amplifier in the package (PDMAX)
•T
MAX = Maximum ambient temperature
•θJA = Thermal resistance of the package
FIGURE 49. INPUT ESD DIODE CURRENT LIMITING
-
+
RIN-
RL
VIN-
V+
V-
RIN+
VIN+
RF
RG
TJMAX TMAX θJAxPDMAXTOTAL
+= (EQ. 1)
ISL28118M
16 FN7858.1
March 7, 2014
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PDMAX for each amplifier can be calculated using Equation 2:
where:
•PD
MAX = Maximum power dissipation of 1 amplifier
•V
S = Total supply voltage
•I
qMAX = Maximum quiescent supply current of one amplifier
•V
OUTMAX = Maximum output voltage swing of the application
•R
L = Load resistance
ISL28118M SPICE Model
Figure 50 shows the SPICE model schematic and Figure 51 shows
the net list for the SPICE model. The model is a simplified version
of the actual device and simulates important AC and DC
parameters. AC parameters incorporated into the model are: 1/f
and flatband noise voltage, slew rate, CMRR, and gain and phase.
The DC parameters are IOS, total supply current, and output
voltage swing. The model uses typical parameters given in the
“Electrical Specifications” table beginning on page 4. The AVOL is
adjusted for 136dB with the dominant pole at 0.6Hz. The CMRR is
set at 120dB, f = 50kHz. The input stage models the actual device
to present an accurate AC representation. The model is configured
for an ambient temperature of +25°C.
Figures 52 through 66 show the characterization vs simulation
results for the noise voltage, open loop gain phase, closed loop
gain vs frequency, gain vs frequency vs RL, CMRR, large signal
10V step response, small signal 0.1V step, and output voltage
swing ±15V supplies.
LICENSE STATEMENT
The information in the SPICE model is protected under United
States copyright laws. Intersil Corporation hereby grants users of
this macro-model, hereto referred to as “Licensee”, a
nonexclusive, nontransferable licence to use this model, as long
as the Licensee abides by the terms of this agreement. Before
using this macro-model, the Licensee should read this license. If
the Licensee does not accept these terms, permission to use the
model is not granted.
The Licensee may not sell, loan, rent, or license the
macro-model, in whole, in part, or in modified form, to anyone
outside the Licensee’s company. The Licensee may modify the
macro-model to suit his/her specific applications, and the
Licensee may make copies of this macro-model for use within
their company only.
This macro-model is provided “AS IS, WHERE IS, AND WITH NO
WARRANTY OF ANY KIND EITHER EXPRESSED OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.”
In no event will Intersil be liable for special, collateral, incidental,
or consequential damages in connection with or arising out of
the use of this macro-model. Intersil reserves the right to make
changes to the product and the macro-model without prior
notice.
PDMAX VSIqMAX VS
( - VOUTMAX )VOUTMAX
RL
----------------------------
×+×=(EQ. 2)
ISL28118M
17 FN7858.1
March 7, 2014
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FIGURE 50. SPICE SCHEMATIC
Vout
V--
V++
Common Mode
Gain Stage
with Zero
Correction Current SourcesOutput Stage
Input Stage 1st Gain Stage
Mid Supply ref V2nd Gain Stage
19
27
VOUT
5
14
23
Vmid
V--
V++ V++
V--
6
12
17
V+
Vg
16
11
Vin-
Vin+
8
V--
4
3
107
9
22
21
24
18
Vcm
Vc
25
1
13
26
V-
2
15
20
V--
0
0
0
0
Q6
PNP_input
+
-
G4
+
-
G4
DY
D12D12
-
++
-
En
GAIN = 0.3
-
+-
En
GAIN = 0.3
R16
80
+
-
G13
GAIN = 12.5e-3
-
R13
795.7981795.7981
L1
3.18319E-09
-
+
+
--
+
+
-
GAIN = 0.5
+
-
G6
GAIN = 1
-
G6
C4
10e-12
C4
10e-12
L3
3.18319E-09
L3
3.18319E-09
D1DBREAK
Q8
PNP_LATERAL
Q8
DX
D5D5
C3
10e-12
C3
10e-12
I3
54E-6
I3
CinDif
1.33E-12
IOS
4e-9
IOS
+
-
GAIN = 1
+
-
Q9
PNP_LATERAL
Q9
R18
750
R18
750 R1
5e115e11
ISY
2.5E-3
ISY
R9
1e-3
R6
11
V1
-0.91 V1
DN
D14
DN
D14
+
-
G8
GAIN = 1
-
G8
-
+
+
-
E3
GAIN = 1
-
+
-
V5
-0.4
V5
-0.4
+
-
G12
GAIN = 12.5e-3
+
-
GAIN = 12.5e-3
I2
54E-6
I2
I1
80e-6
I1
DX
D4
DX
D4
795.7981
Cin2
4.02e-12
V4
-0.96
V4
Cin1
4.02e-124.02e-12
DY
D9D9
V6
-0.4
V6
DX
D6D6
DX
D7 DX
D7
-
G2
GGAIN = 0.65897
-
G2
GGAIN = 0.65897
+
-
G9
GAIN = 1.2566e-3
+
-80
V7
0.1
R2
5e115e11
R10
1e-3
+
-
GAIN = 1.69138e-3
+
-
C2
6.6667E-11
V3
-0.91 V3
DN
D13
DN
D13
V2
-0.96 V2
R5
11
+
-
G14
GAIN = 12.5e-3
-
L2
3.18319E-09
+
-
G11
GAIN = 12.5e-3
+
-
+
-
G5
GAIN = 1
+
-
L4
3.18319E-09
L4
3.18319E-09
R7
3.7304227e9
DX
D10D10
R12
1e-3
R12
DX
D3D3
DX
D8D8
DX
D11D11
C1
6.6667E-11
C1
6.6667E-11
D2DBREAK
R17
750
R17
750
+
-
G10
GAIN = 1.2566e-3
+
-
G10
Q7
PNP_input
Q7
R3
1k
R3
+
-
G1
GAIN = 0.65897
-
G1
GAIN = 0.65897
-
++
-
EOS
GAIN = 1
-
++
-
EOS
V8
0.10.1
R4
1k
R4
R11
1e-3
R11
1e-3
-
+
+
-
E2
GAIN = 1
-
+
+
-
E2
3.7304227e9 R14
GAIN = 1.69138e-3
R15
ISL28118M
18 FN7858.1
March 7, 2014
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*ISL28118_218 Macromodel - covers
following *products
*ISL28118
*ISL28218
*
*Revision History:
* Revision B, LaFontaine January 22 2014
* Model for Noise, supply currents, CMRR
*120dB f = 40kHz, AVOL 136dB f = 0.5Hz
* SR = 1.2V/us, GBWP 4MHz.
*Copyright 2011 by Intersil Corporation
*Refer to data sheet “LICENSE STATEMENT”
*Use of this model indicates your acceptance
*with the terms and provisions in the License
*Statement.
*
*Intended use:
*This Pspice Macromodel is intended to give
*typical DC and AC performance
characteristics *under a wide range of
external circuit *configurations using
compatible simulation *platforms – such as
iSim PE.
*
*Device performance features supported by
this *model:
*Typical, room temp., nominal power supply
*voltages used to produce the following
*characteristics:
*Open and closed loop I/O impedances,
*Open loop gain and phase,
*Closed loop bandwidth and frequency
*response,
*Loading effects on closed loop frequency
*response,
*Input noise terms including 1/f effects,
*Slew rate,
*Input and Output Headroom limits to I/O
*voltage swing,
*Supply current at nominal specified supply
*voltages,
*
*Device performance features NOT
supported *by this model:
*Harmonic distortion effects,
*Output current limiting (current will limit at
*40mA),
*Disable operation (if any),
*Thermal effects and/or over temperature
*parameter variation,
*Limited performance variation vs. supply
*voltage is modeled,
*Part to part performance variation due to
*normal process parameter spread,
*Any performance difference arising from
*different packaging,
*Load current reflected into the power supply
*current.
* source ISL28118_218 SPICEmodel
*
* Connections: +input
* | -input
* | | +Vsupply
* | | | -Vsupply
* | | | | output
.subckt ISL28118_218 Vin+ Vin-V+ V- VOUT
* source ISL28118_218_presubckt_0
*
*Voltage Noise
E_En VIN+ 6 2 0 0.3
D_D13 1 2 DN
D_D14 1 2 DN
V_V7 1 0 0.1
V_V8 4 0 0.1
R_R17 2 0 750
*R_R18 3 0 750
*
*Input Stage
Q_Q6 11 10 9 PNP_input
Q_Q7 8 7 9 PNP_input
Q_Q8 V-- VIN- 7 PNP_LATERAL
Q_Q9 V-- 12 10 PNP_LATERAL
I_I1 V++ 9 DC 80e-6
I_I2 V++ 7 DC 54E-6
I_I3 V++ 10 DC 54E-6
I_IOS 6 VIN- DC 4e-9
D_D1 7 10 DBREAK
D_D2 10 7 DBREAK
R_R1 5 6 5e11
R_R2 VIN- 5 5e11
R_R3 V-- 8 1000
R_R4 V-- 11 1000
C_Cin1 V-- VIN- 4.02e-12
C_Cin2 V-- 6 4.02e-12
C_CinDif 6 VIN- 1.33E-12
*
*1st Gain Stage
G_G1 V++ 14 8 11 0.65897
G_G2 V-- 14 8 11 0.65897
V_V1 13 14 -0.91
V_V2 14 15 -0.96
D_D3 13 V++ DX
D_D4 V-- 15 DX
R_R5 14 V++ 1
R_R6 V-- 14 1
*
*2nd Gain Stage
G_G3 V++ VG 14 VMID 1.69138e-3
G_G4 V-- VG 14 VMID 1.69138e-3
V_V3 16 VG -0.91
V_V4 VG 17 -0.96
D_D5 16 V++ DX
D_D6 V-- 17 DX
R_R7 VG V++ 3.7304227e9
R_R8 V-- VG 3.7304227e9
C_C1 VG V++ 6.6667E-11
C_C2 V-- VG 6.6667E-11
*
*Mid supply Ref
E_E2 V++ 0 V+ 0 1
E_E3 V-- 0 V- 0 1
E_E4 VMID V-- V++ V-- 0.5
I_ISY V+ V- DC 0.85E-3
*
*Common Mode Gain Stage with Zero
G_G5 V++ 19 5 VMID 1
G_G6 V-- 19 5 VMID 1
G_G7 V++ VC 19 VMID 1
G_G8 V-- VC 19 VMID 1
E_EOS 12 6 VC VMID 1
L_L1 18 V++ 3.18319E-09
L_L2 20 V-- 3.18319E-09
L_L3 21 V++ 3.18319E-09
L_L4 22 V-- 3.18319E-09
R_R9 19 18 1e-3
R_R10 20 19 1e-3
R_R11 VC 21 1e-3
R_R12 22 VC 1e-3
*
*Pole Stage
G_G9 V++ 23 VG VMID 1.2566e-3
G_G10 V-- 23 VG VMID 1.2566e-3
R_R13 23 V++ 795.7981
R_R14 V-- 23 795.7981
C_C3 23 V++ 10e-12
C_C4 V-- 23 10e-12
*
*Output Stage with Correction Current
Sources
G_G11 26 V-- VOUT 23 12.5e-3
G_G12 27 V-- 23 VOUT 12.5e-3
G_G13 VOUT V++ V++ 23 12.5e-3
G_G14 V-- VOUT 23 V-- 12.5e-3
D_D7 23 24 DX
D_D8 25 23 DX
D_D9 V-- 26 DY
D_D10 V++ 26 DX
D_D11 V++ 27 DX
D_D12 V-- 27 DY
V_V5 24 VOUT -0.4
V_V6 VOUT 25 -0.4
R_R15 VOUT V++ 80
R_R16 V-- VOUT 80
.model PNP_LATERAL pnp(is=1e-016
bf=250 va=80
+ ik=0.138 rb=0.01 re=0.101 rc=180 kf=0
af=1)
.model PNP_input pnp(is=1e-016 bf=100
va=80
+ ik=0.138 rb=0.01 re=0.101 rc=180 kf=0
af=1)
.model DBREAK D(bv=43 rs=1)
.model DN D(KF=6.69e-9 AF=1)
.MODEL DX D(IS=1E-12 Rs=0.1)
.MODEL DY D(IS=1E-15 BV=50 Rs=1)
.ends ISL28118_218
FIGURE 51. SPICE NET LIST
ISL28118M
19 FN7858.1
March 7, 2014
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Characterization vs Simulation Results
FIGURE 52. CHARACTERIZED INPUT NOISE VOLTAGE FIGURE 53. SIMULATED INPUT NOISE VOLTAGE
FIGURE 54. CHARACTERIZED OPEN-LOOP GAIN, PHASE vs
FREQUENCY
FIGURE 55. SIMULATED OPEN-LOOP GAIN, PHASE vs FREQUENCY
FIGURE 56. CHARACTERIZED CLOSED-LOOP GAIN vs FREQUENCY FIGURE 57. SIMULATED CLOSED-LOOP GAIN vs FREQUENCY
0.1
1
10
100
0.1
1
10
100
0.1 1 10 100 1k 10k 100k
INPUT NOISE VOLTAGE (nV/√Hz)
FREQUENCY (Hz)
INPUT NOISE CURRENT (fA/√Hz)
VS = ±18V
INPUT NOISE VOLTAGE
INPUT NOISE CURRENT
0.1
1
10
100
0.1 1 10 100 1k 10k 100k
INPUT NOISE VOLTAGE (nV/√Hz)
FREQUENCY (Hz)
-100
-80
-60
-40
-20
0
20
40
60
80
100
120
140
160
180
200
1m 1 10 100 1k 10k 100k 1M 10M100M 1G
GAIN (dB)
FREQUENCY (Hz)
0.1
VS = ±15V
RL = 1MΩ
0.01
GAIN
PHASE
-100
-80
-60
-40
-20
0
20
40
60
80
100
120
140
160
180
200
1m 1 10 100 1k 10k 100k 1M 10M100M 1G
GAIN (dB)
FREQUENCY (Hz)
0.1
0.01
VS = ±15V
RL = 1MΩ
PHASE
GAIN
-10
0
10
20
30
40
50
60
70
1k 10k 1M 10M
GAIN (dB)
FREQUENCY (Hz)
ACL = 1
ACL = 10
ACL = 100
ACL = 1000
100
RF = 10kΩ, RG = 1kΩ
RF = 0, RG = ∞
100k
RF = 10kΩ, RG = 10Ω
VS = ±5V & ±15V
CL = 4pF
VOUT = 100mVP-P
RL = 2k
RF = 10kΩ, RG = 100Ω
-10
0
10
20
30
40
50
60
70
1k 10k 100k 1M 10M
GAIN (dB)
FREQUENCY (Hz)
ACL = 1
ACL = 10
ACL = 1000
VS = ±5V & ±15V
CL = 4pF
VOUT = 100mVP-P
RL = 2k
100
ACL = 100
RF = 10kΩ, RG = 100Ω
RF = 10kΩ, RG = 10Ω
RF = 10kΩ, RG = 1kΩ
RF = 0, RG = ∞
ISL28118M
20 FN7858.1
March 7, 2014
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FIGURE 58. CHARACTERIZED GAIN vs FREQUENCY vs RLFIGURE 59. SIMULATED GAIN vs FREQUENCY vs RL
FIGURE 60. CHARACTERIZED CMRR vs FREQUENCY FIGURE 61. SIMULATED CMRR vs FREQUENCY
FIGURE 62. CHARACTERIZED LARGE-SIGNAL 10V STEP RESPONSE FIGURE 63. SIMULATED LARGE-SIGNAL 10V STEP RESPONSE
Characterization vs Simulation Results (Continued)
FREQUENCY (Hz)
NORMALIZED GAIN (dB)
100k 1M 10M10k1k
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
VS = ±15V
AV = +1
VOUT = 100mVp-p
CL = 4pF
100
RL = 49.9k
RL = 100k
R
L
= 499k
RL = 1k
RL = OPEN, 100k, 10k
FREQUENCY (Hz)
NORMALIZED GAIN (dB)
100k 1M 10M10k1k
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
100
RL = 1k
RL = 499k
RL = 100k
RL = 49.9k
RL = OPEN, 100k, 10k
VS = ±15V
AV = +1
VOUT = 100mVp-p
CL = 4pF
CMRR (dB)
FREQUENCY (Hz)
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
1m 1 10 100 1k 10k 100k 1M 10M 100M 1G0.1
0.01
VS = ±15V
SIMULATION
CMRR (dB)
FREQUENCY (Hz)
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
1m 1 10 100 1k 10k 100k 1M 10M 100M 1G0.1
0.01
VS = ±15V
SIMULATION
-6
-4
-2
0
2
4
6
0 102030405060708090100
V
OUT
(V)
TIME (µs)
VS = ±15V
AV = 1
RL = 2k
CL = 4pF
-6
-4
-2
0
2
4
6
0 102030405060708090100
V
OUT
(V)
TIME (µs)
VS = ±15V
AV = 1
RL = 2k
CL = 4pF
ISL28118M
21 FN7858.1
March 7, 2014
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FIGURE 64. CHARACTERIZED SMALL-SIGNAL TRANSIENT RESPONSE FIGURE 65. SIMULATED SMALL-SIGNAL TRANSIENT RESPONSE
FIGURE 66. SIMULATED OUTPUT VOLTAGE SWING
Characterization vs Simulation Results (Continued)
V
OUT
(V)
TIME (µs)
-100
-80
-60
-40
-20
0
20
40
60
80
100
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
VS = ±15V
AV = 1
RL = 2k
CL = 4pF
VS = ±5V
AND
V
OUT
(V)
TIME (µs)
-100
-80
-60
-40
-20
0
20
40
60
80
100
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
VS = ±15V
AV = 1
RL = 2k
CL = 4pF
VS = ±5V
AND
00.5 1.0 1.5 2.0
-20V
-10V
0V
10V
20V
OUTPUT VOLTAGE SWING (V)
TIME (ms)
VS = ±15V
VOH = 14.88V
VOL = -14.93V
RL = 10kΩ
ISL28118M
22
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time
without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be
accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third
parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
FN7858.1
March 7, 2014
For additional products, see www.intersil.com/en/products.html
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About Intersil
Intersil Corporation is a leading provider of innovative power management and precision analog solutions. The company's products
address some of the largest markets within the industrial and infrastructure, mobile computing and high-end consumer markets.
For the most updated datasheet, application notes, related documentation and related parts, please see the respective product
information page found at www.intersil.com.
You may report errors or suggestions for improving this datasheet by visiting www.intersil.com/ask.
Reliability reports are also available from our website at www.intersil.com/support
Revision History
The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make sure you
have the latest Rev.
DATE REVISION CHANGE
March 7, 2014 FN7858.1 Updated Spice model netlist on page 18.
Changed POD:
FROM M8.118: Corrected lead width dimension in side view 1 from "0.25 - 0.036" to "0.25 - 0.36"
To M8.118B: Correct lead dimension in side view 2 from 0.15 - 0.05mm to 0.15+/-0.05mm
May 11, 2011 FN7858.0 Initial Release
ISL28118M
23 FN7858.1
March 7, 2014
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Package Outline Drawing
M8.118B
8 LEAD MINI SMALL OUTLINE PLASTIC PACKAGE
Rev 1, 3/12
DETAIL "X"
SIDE VIEW 2
TYPICAL RECOMMENDED LAND PATTERN
TOP VIEW
PIN# 1 ID
0.23 - 0.36mm
DETAIL "X"
0.10 ± 0.05mm
(4.40)
(3.00)
(5.80)
H
C
1.10 MAX
3°±3°
GAUGE
PLANE 0.25
0.95 REF
0.53 ± 0.10mm
B
3.0±0.10mm
12
8
0.86±0.05mm
SEATING PLANE
A
0.65mm BSC
3.0±0.10mm
(0.40)
(1.40)
(0.65)
D
5
5
0.15±0.05mm
SIDE VIEW 1
0.08 C A-B D
M0.10 C
Dimensioning and tolerancing conform to JEDEC MO-187-AA
Plastic interlead protrusions of 0.15mm max per side are not
Dimensions in ( ) are for reference only.
Dimensions are measured at Datum Plane "H".
Plastic or metal protrusions of 0.15mm max per side are not
Dimensions are in millimeters.
3.
4.
5.
6.
NOTES:
1.
2.
and AMSEY14.5m-1994.
included.
included.
4.9±0.20mm
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
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ISL28118MUZ-T7A ISL28118MUZ-T7 ISL28118MUZ ISL28118MUZ-T13