SG143
HIGH-VOLTAGE OPERATIONAL AMPLIFIER
DESCRIPTION
The SG143 is a general-purpose high-voltage operational amplifier
featuring operation to ±40V and overvoltage protection up to ±40V.
Increased slew rate, together with higher common-mode and supply
rejection, insure improved performance at high supply voltages.
Operating characteristics are independent of supply voltage and
temperature. These devices are intended for use in high voltage
applications where common-mode input ranges, high output voltage
swings, and low input currents are required. Also, they are internally
compensated and are pin compatible with industry standard operational
amplifiers.
FEATURES
••
••
•±±
±±
±4.0V to ±±
±±
±40V supply voltage range
••
••
•±±
±±
±37V output voltage swing
••
••
•±±
±±
±24V common-mode voltages
••
••
•Overvoltage protection
••
••
•Output short circuit protection
HIGH RELIABILITY FEATURES-SG143
♦♦
♦♦
♦Available to MIL-STD-883 and DESC SMD
♦♦
♦♦
♦LMI level "S" processing available
CIRCUIT SCHEMATIC
4/90 Rev 1.1 5/94 LINFINITY Microelectronics Inc.
Copyright 1994 11861 Western Avenue ∞ ∞
∞ ∞
∞ Garden Grove, CA 92641
1(714) 898-8121 ∞∞
∞∞
∞ FAX: (714) 893-2570
SG143
4/90 Rev 1.1 2/94 LINFINITY Microelectronics Inc.
Copyright 1994 11861 Western Avenue ∞ ∞
∞ ∞
∞ Garden Grove, CA 92841
2(714) 898-8121 ∞∞
∞∞
∞ FAX: (714) 893-2570
ABSOLUTE MAXIMUM RATINGS (Note 1)
Supply Voltage
SG143 ............................................................................±40V
Input Voltage
SG143 ............................................................................±40V
Differential Input Voltage ................................. ±(V+ + |V-| - 3) V
Output Short Circuit Duration............................................ 5 sec
Operating Junction Temperature
Hermetic (T, Y-Package).............................................. 150°C
Storage Temperature Range ............................ -65°C to 150°C
Lead Temperature (Soldering, 10 Seconds) ................... 300°C
Note 1. Exceeding these ratings could cause damage to the device.
T Package:
Thermal Resistance-Junction to Case, θJC................... 25°C/W
Thermal Resistance-Junction to Ambient, θJA ............ 130°C/W
Y Package:
Thermal Resistance-Junction to Case, θJC.................. 50°C/W
Thermal Resistance-Junction to Ambient, θJA ........... 130°C/W
Note A. Junction Temperature Calculation: TJ = TA + (PD x θJA).
Note B. The above numbers for θJC are maximums for the limiting
thermal resistance of the package in a standard mount-
ing configuration. The θJA numbers are meant to be
guidelines for the thermal performance of the device/pc-
board system. All of the above assume no ambient
airflow.
Supply Voltage
SG143 ........................................................................... ±28V Input Voltage
SG143 ........................................................................... ±28V
Operating Ambient Temperature Range (TJ)
SG143 ............................................................-55°C to 125°C
RECOMMENDED OPERATING CONDITIONS (Note 2)
Note 2. Range over which the device is functional.
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply for the operating ambient temperature of 25°C and over the recommended supply voltage
range. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
Units
Parameter
Input Offset Voltage
Input Offset Current
Input Bias Current
Large Signal Voltage Gain
Common-Mode Rejection
Power Supply Rejection
Input Common Mode Range (Peak)
Unity Gain Bandwidth
Slew Rate
Supply Current
Output Voltage Swing
Short Circuit Current
mV
mV
nA
nA
nA
nA
nA
V/mV
V/mV
dB
µV/V
V
MHz
V/µs
mA
V
mA
TA = TMIN to TMAX
TA = TMAX
TA = TMIN.
TA = TMIN to TMAX
RL = 100KΩ, VOUT = ±10V
TA = TMIN to TMAX
RL =5KΩ
Test Conditions Min. Typ. Max.
SG143
100
50
80
±24
±22
5.0
6.0
3.0
4.5
7.0
20
35
100
4.0
2.0
1.0
8.0
180
110
15
±25
1.0
2.5
20
THERMAL DATA
SG143
4/90 Rev 1.1 2/94 LINFINITY Microelectronics Inc.
Copyright 1994 11861 Western Avenue ∞ ∞
∞ ∞
∞ Garden Grove, CA 92841
3(714) 898-8121 ∞∞
∞∞
∞ FAX: (714) 893-2570
FIGURE 5.
INPUT CURRENT FIGURE 6.
VOLTAGE GAIN
CHARACTERISTIC CURVES
FIGURE 1.
POWER BANDWIDTH FIGURE 2.
PEAK OUTPUT VOLTAGE SWING VS. POWER SUPPLY VOLTAGE
FIGURE 4.
OUTPUT SHORT-CIRCUIT CURRENT VS. TEMPERATURE
FIGURE 3.
OPEN-LOOP FREQUENCY RESPONSE
SG143
4/90 Rev 1.1 2/94 LINFINITY Microelectronics Inc.
Copyright 1994 11861 Western Avenue ∞ ∞
∞ ∞
∞ Garden Grove, CA 92841
4(714) 898-8121 ∞∞
∞∞
∞ FAX: (714) 893-2570
No te 1. Contact factory for JAN and DESC product availablity.
2. All packages are viewed from the top.
CHARACTERISTIC CURVES (continued)
FIGURE 8.
UNITY GAIN BANDWIDTH
FIGURE 7.
SUPPLY CURRENT
Ambient
Temperature Range
Part No.Package Connection Diagram
CONNECTION DIAGRAMS & ORDERING INFORMATION (See Notes Below)
SG143T/883B -55°C to 125°C
SG143T/DESC -55°C to 125°C
SG143T -55°C to 125°C
8-PIN METAL CAN
T - PACKAGE
OUTPUT
V+
4
8
5
17
3
26
INVERTING INPUT
V -
OFFSET ADJUST
NON-INVERTING
INPUT OFFSET ADJUST
N.C.
8-PIN CERAMIC DIP
Y- PACKAGE SG143Y/883B -55°C to 125°C
SG143Y/DESC -55°C to 125°C
SG143Y -55°C to 125°C
8
7
6
5
2
1
3
4
INVERTING INPUT
OFFSET ADJUST
NON-INVERTING INPUT
V-
V+
OFFSET ADJUST
OUTPUT
N.C.
TYPICAL APPLICATIONS
FIGURE 11 - LOW-DRIFT SAMPLE AND HOLDFIGURE 10 - DIFFERENTIAL AMPLIFIER WITH ±20V
COMMON-MODE INPUT VOLTAGE RANGE
FIGURE 9 - VOLTAGE OFFSET
NULL CIRCUIT
