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INA821 Datasheet(PDF) 5 Page - Texas Instruments

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Part # INA821
Description  INA630 Precision, 126dB CMRR, Indirect Current Feedback Instrumentation Amplifier
PDF  32 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA821 Datasheet(HTML) 5 Page - Texas Instruments

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6.5 Electrical Characteristics
at TA = 25°C, VS = ±15V, RL = 10kΩ, VREF = 0V, and G = 20 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT (INP, INN)
VOS
Offset voltage(1)
±50
±350
µV
RTI, TA = –40°C to +125°C
±450
Offset voltage drift
RTI, TA = –40°C to +125°C
0.5
2
µV/°C
PSRR
Power-supply rejection
ratio
RTI, VS = ±2.25V to ±18V
123
130
dB
CMRR
Common-mode rejection
ratio
At DC to 60Hz, RTI
VCM = (V–) + 1.75V to (V+) – 1.5V
G = 20 to 1000
126
133
dB
INPUT (INP, INN, VREF, VFB)
zid
Differential impedance
100 || 1
GΩ || pF
zic
Common-mode
impedance
100 || 7
GΩ || pF
VCM
Operating voltage
(V–) + 1.75
(V+) – 1.5
V
VS = ±2.25V to ±18V, TA = –40°C to +125°C
V
VDM
Differential operating
voltage
VS = ±2.25V to ±18V, TA = –40°C to +125°C
–125
125
mV
IB
Input bias current
VCM = VS/2
6
15
nA
IOS
Input offset current
VCM = VS/2
200
pA
NOISE VOLTAGE
eN
Voltage noise
f = 1kHz, G = 20, 100, RS = 0Ω
40
nV/√Hz
EN
fB = 0.1Hz to 10Hz, G = 20 or 100, RS = 0Ω
2
µVPP
iN
Current noise
f = 1kHz
40
fA/√Hz
fB = 0.1Hz to 10Hz, G = 100
1.5
pAPP
GAIN
G
Gain equation
1+R2 / R1
V/V
Gain range
20
1000
V/V
GE
Gain error
G = 20, VO = ±2.5V, R1 = 1kΩ
±0.025
%
Gain vs temperature(2)
G = 20 to 1000, TA = –40°C to +125°C
2.5
ppm/°C
Gain nonlinearity
G = 20, VO = –2.5V to 2.5V, RL = 10kΩ
40
ppm
G = 100, VO = –2.5V to 2.5V, RL = 10kΩ
1
10
ppm
OUTPUT
Output voltage swing
(V–) + 1.75
(V+) – 1.5
V
Load capacitance stability
1000
pF
ZO
Closed-loop output
impedance
f = 10kHz
100
Ω
ISC
Short-circuit current
Continuous to VS/2
±20
mA
FREQUENCY RESPONSE
BW
Bandwidth, –3dB
G = 20
550
kHz
G = 100
100
G = 1000
10
SR
Slew rate
G = 20, VO = ±2.5V
3.5
V/µs
G = 100, VO = ±2.5V
1.5
tS
Settling time
0.01%, VSTEP = 5V
G = 20
5
µs
G = 100
15
0.001%, VSTEP = 5V
G = 20
7.5
G = 100
25
POWER SUPPLY
www.ti.com
INA630
SBOSAI8 – MARCH 2025
Copyright © 2025 Texas Instruments Incorporated
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5
Product Folder Links: INA630



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