ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
AUTOMOTIVE GRADE PRECISION HIGH VOLTAGE HIGH-SIDE CURRENT MONITORS
Description
The ZXCT1082Q/83Q/84Q/85Q/86Q/87Q are high side unipolar
current sense monitors. These devices eliminate the need to disrupt
the ground plane when sensing a load current.
The ZXCT1082Q/1084Q/1086Q have 60V maximum operating
voltages and ZXCT1083Q/1085Q/1087Q have 40V maximum
operating voltages.
The wide common-mode input voltage range and low quiescent
currents coupled with SOT25 packages make them suitable for a
range of applications; including automotive and systems operating
from industrial 24-28V rails.
Their quiescent current is only 0.6µA thereby minimizing current
sensing error.
The ZXCT1082Q and ZXCT1083Q use three external
transconductance/gain setting resistors which increase versatility by
permitting wide gain ranges and optimization of bandwidths.
The ZXCT1084Q/85Q/86Q/87Q are fixed gain voltage output
counterparts of the ZXCT1082Q/83.
The ZXCT1082Q/3Q/4Q/5Q/6Q/7Q have been qualified to AEC-Q100
Grade 1 and are Automotive Grade supporting PPAPs.
Pin Assignments
Typical Application Circuits
ZXCT1084Q/85Q: VOUT = 25 x VSENSE
ZXCT1086Q/87Q: VOUT = 50 x VSENSE
ZXCT1082Q/83Q: VOUT=VSENSE×RG
RGT
Features
Wide supply and common-mode voltage range
2.7V to 60V ZXCT1082Q/84Q/86Q
2.7V to 40V ZXCT1083Q/85Q/87Q
Independent supply and input common-mode voltage
Low quiescent current (0.6µA).
AEC-Q100 Grade 1 qualified
Extended industrial temperate range -40 to +125°C
SOT25 package in Green Molding
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Automotive Grade
Qualified to AEC-Q100 Standards for High Reliability
PPAP Capable (Note 4)
Applications
Automotive current measurement
Automotive battery management
Automotive over current monitor
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. Automotive products are AEC-Q100 qualified and are PPAP capable. Automotive, AEC-Q100 and standard products are electrically and thermally
the same, except where specified. For more information, please refer to http://www.diodes.com/quality/product_compliance_definitions.
S+ S-
R
SENSE
V
CC
V
SUPPLY
Load
V
LOAD
GND OUT
ZXCT1084/1085
ZXCT1086/1087
S+ S-
R
SENSE
V
CC
V
SUPPLY
R
GT
Load
R
GT
V
LOAD
GND OUT
ZXCT1082/1083
R
G
1
2
34
5V
CC
S-
OUT
GND
S+
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
Pin Description
PIN Name Function
Common ZXCT1082Q/83Q ZXCT1084Q/85Q/86Q/87Q
1 OUT Output pin. Current output. Voltage output
2 GND Ground pin.
3 S+
This is the positive input of the current
monitor. It has a wide common-mode
input range. The current through this pin
varies with differential sense voltage.
An external resistor, RGT, should be
connected from S+ to the input side
(VSUPPLY) of the sense resistor
Should be directly connected to the input
side (VSUPPLY) of the sense resistor.
4 S-
This is the negative input of the current
monitor. It has a wide common-mode
input range.
An external resistor, RGT, should be
connected from S- to the load side
(VLOAD) of the sense resistor.
Should be directly connected to the load
side (VLOAD) of the sense resistor.
5 VCC This is the analogue supply and provides power to internal circuitry.
Absolute Maximum Ratings
Parameter Rating Unit
ZXCT1082Q/84Q/86Q ZXCT1083Q/85Q/87Q —
Voltage on S- and S+ -0.3 to 65 -0.3 to 45 V
Voltage on VCC -0.3 to 65 -0.3 to 45 V
Voltage on OUT -0.3 to VS- V
Differential Input Voltage, VS+ - VS- (Notes 5, and 6) ±800 mV
Input current into S+ or S- (Notes 5, and 6) ±12 mA
Storage Temperature -55 to +150 °C
Maximum Junction Temperature +150 °C
Package Power Dissipation (De-rate to zero at +150°C) 300 at TA = +25°C mW
ESD Rating
HBM Human Body Model 3 kV
MM Machine Model 250 V
CDM Charged Device Model tbd kV
Caution: Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be
affected by exposure to absolute maximum rating conditions for extended periods of time.
Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling
and transporting these devices.
Notes: 5. For the ZXCT1082/83 VSENSE = “VSUPPLY” – “VLOAD“ where VLOAD is the load voltage or the lower potential side of the sense resistor.
For the ZXCT1083/84/85/86 VSENSE = “VS+” – “VS-“
6. The differential input voltage limit, VS+ - VS- may be exceeded provided that the input current limit into S+ or S- is not exceeded
Recommended Operating Conditions
Symbol Parameter Min Max Units
VIN ZXCT1083Q/1085Q/1087Q Common-Mode Input Range
ZXCT1082Q/1084Q/1086Q Common-Mode Input Range
2.7
2.7
40
60 V
VCC ZXCT1083Q/1085Q/1087Q Supply Voltage Range
ZXCT1082Q/1084Q/1086Q Supply Voltage Range
2.7
2.7
40
60 V
VSENSE Differential Sense Input Voltage Range 0 0.5 V
VOUT Output Voltage Range (Note 5) 0 VS- -1 V
TA Ambient Temperature Range -40 +125 °C
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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Electrical Characteristics
Test Conditions TA = +25C, VS+ = 12V, VCC = 5 V, VSENSE = 100mV (Note 5), ZXCT1082Q/83Q RGT = 5kΩ, RG = 125kΩ; unless otherwise
stated. (FT = -40°C to +125°C)
Symbol Parameter Conditions Min Typ Max Units
Input
IS+ S+ input current
VSENSE = 0mV (Note 5)
— — 1.7 —
µA
TA = FT — — 5
IS- S- input current — — 1.7 —
µA
TA = FT — — 5
VIO Input Offset Voltage
(Note 7)
VSENSE = 0mV — — ±0.2 ±1
mV
ZXCT1082Q/ 83Q/ 84Q/ 85Q TA = FT — — ±2.5
ZXCT1086Q/ 87Q TA = FT — — ±3
Temperature co-efficient — ±4 — µV/K
Output
GT Transconductance
ZXCT1082Q/83Q
VSENSE = 10mV to 150mV
(Notes 5, 8)
— — 200 — µA/V
GT-ERR Transconductance error
(Note 9)
— -1 — +1
%
TA = FT -2 — +2
GT-TC Transconductance
temperature co-efficient TA = FT — 10 — nA/K
ZOUT Output impedance ZXCT1082Q/83Q — 1¦¦5 — GΩ¦¦pF
GV Gain
ZXCT1084Q/85Q/86Q/87Q
VSENSE = 10mV to 150mV (Note 5)
ZXCT1084Q/85Q — 25 — V/V
ZXCT1086Q/87Q — 50 —
GV-ERR Gain error (Note 9) — -1 — +1
%
TA = FT -2 — +2
GV-TC Voltage gain temperature
co-efficient TA = FT — 100 — ppm/K
ZOUT Output impedance ZXCT1084Q/85Q/86Q/87Q — 125 — kΩ
VOUTH Output relative to common
mode, VS-
ZXCT1082Q/83Q VLOAD - 1 VLOAD - 0.8 — V
ZXCT1084Q/85Q/86Q/87Q VS- - 1 VS- - 0.8 —
Notes: 5. For the ZXCT1082/83 VSENSE = “VSUPPLY” – “VLOAD“ where VLOAD is the load voltage or the lower potential side of the sense resistor.
For the ZXCT1083/84/85/86 VSENSE = “VS+” – “VS-“
7. VIO is extrapolated from measurements for the gain-error test.
8. For VSENSE > 10mV, the internal voltage-current converter is fully linear. This enables a true offset to be defined and used.
9. Gain or transconductance error is calculated by applying two values of VSENSE and calculating the error of the slope vs. the ideal.
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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Electrical Characteristics (cont.)
Test Conditions TA = +25C, VS+ = 12V, VCC = 5 V, VSENSE1 = 100mV, ZXCT1082Q/83Q RGT = 5kΩ, RG = 125kΩ; unless otherwise stated.
(FT = -40°C to +125°C)
Symbol Parameter Conditions Min Typ Max Units
AC characteristics
BW -3dB Small Signal
Bandwidth
VSENSE (AC) = 10mVPP
(Note 5)
G = 25 — 500 — kHz
G = 50 — 200 —
ts(0.1%) Settling time (0.1%) VSENSE = 50mV to 300mV step G = 25 — 5 — µs
VSENSE = 50mV to 200mV step G = 50 — 7 —
iN-OUT
Output noise current
density
f = 1kHz
ZXCT1082Q/83Q
— 12 — pA/Hz
f = 10kHz — 10 —
Total output noise current f = 0.1Hz to 100kHz — 3 — nARMS
vN-OUT
Output noise voltage
density
f = 1kHz ZXCT1084Q/85Q — 1.5 —
µV/Hz
ZXCT1086Q/87Q — 2.9 —
f = 10kHz ZXCT1084Q/85Q — 1.2 —
ZXCT1086Q/87Q — 2.3 —
Total output noise voltage f = 0.1Hz to 100kHz ZXCT1084Q/85Q — 390 — µVRMS
ZXCT1086Q/87Q — 730 —
Power Supply
ICC V
CC Supply current VSENSE = 0V — — 0.6 — µA
TA = FT — — 2 —
PSRR
(Note 10) VCC Supply rejection ratio
ZXCT1083Q/85Q: VSENSE = 60mV;
VCC = 2.7V to 40V
— 80 100 —
dB
TA = FT 75 — —
ZXCT1087Q: VSENSE = 30mV;
VCC = 2.7V to 40V
— 80 100 —
TA = FT 75 — —
ZXCT1082Q/84Q: VSENSE = 60mV;
VCC = 2.7V to 60V
— 80 100 —
TA = FT 75 — —
ZXCT1086Q: VSENSE = 30mV;
VCC = 2.7V to 60V
— 80 100 —
TA = FT 75 — —
CMRR
(Note 10)
Common-mode sense
rejection ratio
ZXCT1083Q/85Q: VSENSE = 60mV;
VS+ = 2.7V to 40V
— 80 100 —
dB
TA = FT 80 — —
ZXCT1087Q: VSENSE = 30mV;
VS+ = 2.7V to 40V
— 80 100 —
TA = FT 80 — —
ZXCT1082Q/84Q: VSENSE = 60mV;
VS+ = 2.7V to 60V
— 80 100 —
TA = FT 80 — —
ZXCT1086Q: VSENSE = 30mV;
VS+ = 2.7V to 60V
— 80 100 —
TA = FT 80 — —
Note: 10. Measured relative to input
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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Typical Characteristics (@ VS+ = 12V, VCC = 5V VSENSE = 100mV, RGT = 5kΩ, RG = 125kΩ, TA = +25°C, unless otherwise stated.)
0
2
4
6
8
I (A)
CC
µ
12
14
16
18
20
01020304050
60
85°C
25°C
-40°C
125°C
V(V)
CC
Supply Current vs. Supply Voltage
10
V = 0V
V = 25C
R = 5k
R = 125k
SENSE
S+
GT
G
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0102030405060
V (V)
S+
S+ Input Current vs. S+ Voltage
V = 0V
T = 25C
V= 5V
R = 5k
R = 125k
SENSE
A
CC
GT
G
I (A)
S+
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0102030405060
V (V)
I Input Current vs. V
CC
S+ CC
I (
A
)
S+
0
10
20
30
40
50
60
70
80
90
100
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
V (V)
SENSE
I Input Current vs. V
S+ SENSE
I(A)
S+
V= 5V
CC
T = 25C
V 12V
R = 5k
R = 125k
A
S+
GT
G
1.400
1.405
1.410
1.415
1.420
1.425
1.430
1.435
1.440
1.445
1.450
-40 -25 -10 5 20 35 50 65 80 95 110 125
T Temperature ( C)
I Input Current vs. Ambient Temperature
A
S+
I Input
C
urr
e
nt ( A)
S+
V = 0V
V= 5V
R = 5k
R = 125k
SENSE
CC
GT
G
V 12V
S+
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0 102030405060
V (V)
I Input Current vs. S+ Voltage
S+
S-
I (
A
)
S-
V= 5V
V = 0V
CC
SENSE
T = 25C
R = 5k
R = 125k
A
GT
G
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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Typical Characteristics (cont.) (@ VS+ = 12V, VCC = 5V, VSENSE = 100mV, RGT = 5kΩ, RG = 125kΩ, TA = +25°C)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0 102030405060
I (A)
S-
V (V)
I Input Current vs. Supply Voltage
CC
S-
R = 5k
R = 125k
V 12V
T = 25C
V = 0V
S+
A
SENSE
GT
G
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
V (V)
I Input Current vs. V Different Voltage
SENSE
S- SENSE
I (A)
S-
R = 5k
R = 125k
V 12V
T = 25C
V= 5V
S+
A
CC
GT
G
1.390
1.395
1.400
1.405
1.410
1.415
1.420
1.425
1.430
-40 -25 -10 5 20 35 50 65 80 95 110 125
T Temperature ( C)
I Input Current vs. Ambient Temperature
A
S-
I (A)
S-
R = 5k
R = 125k
V = 0V
V 12V
V= 5V
SENSE
S+
CC
GT
G
0
2
4
6
8
10
12
14
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
Gain = 10
Gain = 25
Gain = 100
V (V)
OUT
V (V)
Output Voltage vs. V
SENSE
SENSE
R = 5k
V 12V
V= 5V
T = 25C
S+
CC
A
GT
0.24
0.242
0.244
0.246
0.248
0.25
-40 -25 -10 5 20 35 50 65 80 95 110 125
V = 2.7V
S+
V= 12V
S+
V = 40V
S+
V = 60V
S+
T Temperature ( C)
V vs. Ambient Temperature
A
OUT
V (V)
OUT
R = 5k
R = 125k
V = 10mV
V= 5V
SENSE
CC
GT
G
0.241
0.242
0.243
0.244
0.245
0.246
0.247
0.248
0.249
0.25
0.251
-40 -25 -10 5 20 35 50 65 80 95 110 125
V = 2.7V
CC
V = 5V
CC
V = 40V
CC
V = 60V
CC
T Temperature ( C)
V vs. Ambient Temperature
A
OUT
V (V)
OUT
R = 5k
R = 125k
V = 10mV
V= 12V
SENSE
s+
GT
G
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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Typical Characteristics (cont.) (@ VS+ = 12V, VCC = 5V, VSENSE = 100mV, RGT = 5kΩ, RG = 125kΩ, TA = +25°C)
0
2
4
6
8
10
12
14
0102030405060
V (V)
OUT
V (V)
V vs. V
S
OUT S
+
+
V = 500mV
SENSE
V = 100mV
SENSE
V = 10mV
SENSE
V= 5V
T = 25C
CC
A
R = 5k
R = 125k
GT
G
-0.05
0.00
0.05
0.10
0.15
V (V)
OUT
0.25
0.30
0102030405060
0.20
V (V)
V vs. V
CC
OUT C
C
R = 5k
R = 125k
V = 10mV
T = 25C
SENSE
A
GT
G
V = 3.6V
S+
V = 10V
S+
24.93
24.94
24.95
24.96
24.97
24.98
24.99
25.0
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature ( C)
Differential Gain vs. Temperature
Differential Gain
V= 30 - 100mV
SENSE
V= 20 - 30mV
SENSE
V= 10 - 20mV
SENSE
V = 100 - 150mV
SENSE
R = 5k
R = 125k
V = 5V
V= 12V
CC
s+
GT
G
-5
-4.5
-4
-3.5
-3
-2.5
-2
-1.5
-1
-0.5
0
.00 .05 .10 .15 .20 .25 .30 .35 .40 .45 .50
(V)
Error vs. V
SENSE
SENSE
Err
o
r (
%
)
-0.3
-0.25
-0.2
-0.15
-0.1
-0.05
0
0 102030405060
Error (%)
V
(V)
Error vs. V
CC
CC
Gain = 100
Gain = 10 Gain = 50
V = 5V
V = 12V
T = All Temp
R = 5k
CC
S+
A
GT
-1
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0 102030405060
V = 10mV
SENSE
Gain 100
Gain 50
Gain 10
Error (
%
)
V (V)
Error vs. V
S+
S+
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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Typical Characteristics (cont.) (@ VS+ = 12V, VCC = 5V, VSENSE = 100mV, RGT = 5kΩ, RG = 125kΩ, TA = +25°C)
-20.0
-10.0
0.0
10.0
20.0
30.0
40.0
1E+0 100E+0 10E+3 1E+6 100E+6
Frequency (Hz)
Small Signal Bandwidth vs. Frequency
G
ain (dB)
Gain = 50
Gain = 10
Gain = 1
V = 5V, V = 12V
V = 10mV
T = 25C
R = 5k
CC S+
SENSE
A
GT
-20
-10
0
10
20
30
40
100E+3 1E+6 10E+6 100E+6
Gain (dB)
Frequency (Hz)
Small Signal Bandwidth vs. Frequency
Gain = 50
Gain = 10
Gain = 1
85 C
125 C
-40 C
25 C
V = 5V, V = 12V
V = 10mV
T = 25C
R = 5k
CC S+
SENSE
A
GT
-0.05
0
0.05
0.1
0.15
0.2
0.25
0.3
01234567 8910
-1
0
1
2
3
4
5
6
V (V)
OUT
V (V)
SENSE
Time ( s)
Large Signal Pulse Response
V
OUT
V
SENSE
V = 5V
V = 12V
T = 25C
R = 5k
CC
S+
A
GT
R = 125k
G
0
0.05
0.1
0.15
0.2
0.25
012345678910
1
2
3
4
5
6
V (V)
OUT
V (V)
SENSE
Time ( s)
Large Signal Pulse Response
V
OUT
V
SENSE
V = 5V
V = 12V
T = 25C
R = 5k
CC
S+
A
GT
R = 125k
G
V (V)
O
UT
V (V)
SENSE
Time ( s)
Small Signal Pulse Response
-0.025
-0.02
-0.015
-0.01
-0.005
0
0.005
0.01
0.015
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
0.25
0.3
0
0.005
0.01
0.015
0.02
0.025
012345678910
0.1
0.2
0.3
0.4
0.5
0.6
V (V)
OUT
V (V)
SENSE
Time ( s)
Small Signal Pulse Response
V = 5V
V = 12V
T = 25C
R = 5k
CC
S+
A
GT
R = 125k
G
V
OUT
V
SENSE
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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Typical Characteristics (cont.) (@ VS+ = 12V, VCC = 5V, VSENSE = 100mV, RGT = 5kΩ, RG = 125kΩ, TA = +25°C)
-0.005
0
0.005
0.01
0.015
0.02
0.025
012345678910
0.00
0.10
0.20
0.30
0.40
0.50
0.60
V = 5V
V = 12V
T = 25C
R = 5k
CC
S+
A
GT
R = 125k
G
V (V)
OUT
V (V)
SENSE
Time ( s)
Small Signal Pulse Response
V
OUT
V
SENSE
0
20
40
60
80
100
120
140
1E+0 100E+0 10E+3 1E+6 100E+6
CMRR (dB)
Frequency (Hz)
Common Mode Rejection vs. Frequency
V = 5V
V = 12V
V = 10mV
R = 5k
Gain
CC
S+
SENSE
GT
= 1
-40 C
25 C
125 C
0
20
40
60
80
100
120
140
1.0E+00 1.0E+02 1.0E+04 1.0E+06 1.0E+08
CMRR (dB)
Frequency (Hz)
Common Mode Rejection vs. Frequency
-20
0
20
40
60
80
100
120
1E+0 100E+0 10E+3 1E+6 100E+6
CMRR (dB)
Frequency (Hz)
Common Mode Rejection Ratio vs. Frequency
V = 5V
V = 12V
V = 10mV
R = 5k
Gain
CC
S+
SENSE
GT
= 10
-40 C
25 C
125 C
-20
0
20
40
60
80
100
120
1.0E+00 1.0E+02 1.0E+04 1.0E+06 1.0E+08
Frequency (Hz)
Common Mode Rejection Ratio vs. Frequency
C
M
RR (dB)
V = 5V
CC
V = 12V
V = 100mV
R = 5k
Gain = 50
S+
SENSE
GT
-40 C
25 C
85 C
125 C
50
100
150
200
250
300
1.0E+00 1.0E+02 1.0E+04 1.0E+06 1.0E+08
-40 C
25 C
85 C
125 C
V = 5V
CC
V = 12V
V = 10mV
R = 5k
Gain = 1
S+
SENSE
GT
Frequency (Hz)
Power Supply Rejection Ration vs. Frequency
PS
R
R
(dB)
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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Typical Characteristics (cont.) (@ VS+ = 12V, VCC = 5V, VSENSE = 100mV, RGT = 5kΩ, RG = 125kΩ, TA = +25°C)
50
100
150
200
250
300
1.0E+00 1.0E+02 1.0E+04 1.0E+06 1.0E+08
Frequency (Hz)
Power Supply Rejection Ration vs. Frequency
PS
R
R
(dB)
V = 5V
CC
V = 12V
V = 100mV
R = 5k
Gain = 1
S+
SENSE
GT
-40 C
25 C
85 C
125 C
50
100
150
200
250
300
1.0E+00 1.0E+02 1.0E+04 1.0E+06 1.0E+08
-40 C
°
25°C
85°C
125 C
°
P
S
R
R
(dB)
V = 5V
V = 12V
V = 10mV
R = 5k
Gain = 10
CC
S+
SENSE
GT
Frequency (Hz)
Power Supply Rejection Ration vs. Frequency
50
60
70
80
90
100
110
120
130
140
150
1.0E+00 1.0E+02 1.0E+04 1.0E+06
PSRR (dB)
Frequency (Hz)
Power Supply Rejection Ration vs. Frequency
V = 5V
V = 12V
V = 100mV
R = 5k
Gain = 10
CC
S+
SENSE
GT
-40 C
°
25°C
85°C
125 C
°
30
40
50
60
70
80
90
100
1E+0 10E+0 100E+0 1E+3 10E+3 100E+3 1E+6
-40 C
°
25°C
85°C
125 C
°
V = 5V
V = 12V
V = 10mV
R = 5k
Gain = 50
CC
S+
SENSE
GT
P
S
R
R
(
d
B)
Frequency (Hz)
Power Supply Rejection Ration vs. Frequency
0
20
40
60
80
100
120
140
1E+0 10E+0 100E+0 1E+3 10E+3 100E+3 1E+6
PSRR (dB)
Frequency (Hz)
Power Supply Rejection Ratio vs. Frequency
0
10
20
30
40
50
60
70
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Time (s)
Load Dump vs. Time
Voltage (V)
Input
Output
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
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Typical Characteristics (cont.) (@ VS+ = 12V, VCC = 5V, VSENSE = 100mV, RGT = 5kΩ, RG = 125kΩ, TA = +25°C)
1
10
100
1000
100.0E-3 10.0E+0 1.0E+3 100.0E+3
Frequency (Hz)
Output Noise Current vs. Frequency
V = 5V
V = 12V
V = 100mV
T = 25C
R = 5k
Gain = 25
CC
S+
SENSE
A
GT
ZXCT1082
Output Noise (pA/ Hz)
1
10
100
1000
100.0E-3 10.0E+0 1.0E+3 100.0E+3
Output Noise (µV/ Hz)
Frequency (Hz)
Output Noise Voltage vs. Frequency
V = 5V
V = 12V
V = 100mV
T = 25C
CC
S+
SE NS E
A
ZXCT1084
1
10
100
1000
100.0E-3 10.0E+0 1.0E+3 100.0E+3
Output Noise (µV/ Hz)
Frequency (Hz)
Output Noise Voltage vs. Frequency
V = 5V
V = 12V
V = 100mV
T = 25C
CC
S+
SE N S E
A
ZXCT1086
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
Document number: DS37015 Rev. 1 - 2
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Ordering Information
Part Number Packaging
(Note 11)
Package
Code
Identification
Code
Packing: 7” Tape and Reel Qualification Grade
(Note 12)
Quantity Tape width Part Number Suffix
ZXCT1082QE5TA SOT25 E5 1082 3000 Units 8mm TA Automotive Grade
ZXCT1083QE5TA SOT25 E5 1083 3000 Units 8mm TA Automotive Grade
ZXCT1084QE5TA SOT25 E5 1084 3000 Units 8mm TA Automotive Grade
ZXCT1085QE5TA SOT25 E5 1085 3000 Units 8mm TA Automotive Grade
ZXCT1086QE5TA SOT25 E5 1086 3000 Units 8mm TA Automotive Grade
ZXCT1087QE5TA SOT25 E5 1087 3000 Units 8mm TA Automotive Grade
Note: 11. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf
12. ZXCT1082Q/83Q/84Q/85Q/86Q/87Q have been qualified to AEC-Q100 grade 1 and is classified as “Automotive Grade” which supports PPAP
documentation. See ZXCT1082/82/84/85/86/87 datasheet for commercial qualified version.
Marking Information
: Identification code : XXXX
Package Outline Dimensions
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
SOT25
Dim Min Max Typ
A 0.35 0.50 0.38
B 1.50 1.70 1.60
C 2.70 3.00 2.80
D   0.95
H 2.90 3.10 3.00
J 0.013 0.10 0.05
K 1.00 1.30 1.10
L 0.35 0.55 0.40
M 0.10 0.20 0.15
N 0.70 0.80 0.75
 0° 8°

All Dimensions in mm
A
M
JL
D
B C
H
KN
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
Document number: DS37015 Rev. 1 - 2
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Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales
channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and
any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or
systems.
Copyright © 2014, Diodes Incorporated
www.diodes.com
Dimensions Value (in mm)
Z 3.20
G 1.60
X 0.55
Y 0.80
C1 2.40
C2 0.95
X
Z
Y
C1
C2C2
G
Mouser Electronics
Authorized Distributor
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