ZHCSRV7B december   1995  – may 2023 INA2128

PRODUCTION DATA  

  1.   1
  2. 1特性
  3. 2应用
  4. 3说明
  5. 4Revision History
  6. 5Pin Configuration and Functions
  7. 6Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  8. 7Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Setting The Gain
      2. 7.2.2 Dynamic Performance
      3. 7.2.3 Noise Performance
      4. 7.2.4 Offset Trimming
      5. 7.2.5 Input Bias Current Return Path
      6. 7.2.6 Input Common-Mode Range
      7. 7.2.7 Low-Voltage Operation
      8. 7.2.8 Input Protection
      9. 7.2.9 Channel Crosstalk
  9. 8Device and Documentation Support
    1. 8.1 接收文档更新通知
    2. 8.2 支持资源
    3. 8.3 Trademarks
    4. 8.4 静电放电警告
    5. 8.5 术语表
  10. 9Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.5 Electrical Characteristics

at TA = 25°C, VS = ±15 V, RL = 10 kΩ, VREF = 0 V, VCM = VS / 2, and G = 1 (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INPUT
VOS Offset voltage (RTI)  INA2128U  ±10 ±100 / G ±50 ±500 / G µV
INA2128UA ±25 ±100 / G ±125 ±1000 / G
Offset voltage drift (RTI)  TA = –40°C to +85°C INA2128U  ±0.2 ±2 / G ±0.5 ±20 / G µV/°C
INA2128UA ±0.2 ±5 / G ±1 ±20 / G
PSRR Power-supply rejection ratio (RTI) VS =  ±2.25 V to ±18 V INA2128U ±0.2 ±20 / G ±1 ±100 / G µV/V
INA2128UA ±0.2 ±20 / G ±2 ±200 / G
Long-term stability ±0.2 ±3 / G µV/mo
Input impedance Differential 10 || 2 GΩ || pF
Common-mode 100 || 9
VCM Common-mode voltage(1) VO = 0 V (V–) + 2 (V+) – 2 V
Safe input voltage  RS = 0 Ω ±40 V
CMRR Common-mode rejection ratio ΔRS = 1 kΩ, VCM = ±13 V G = 1 INA2128U 80 86 dB
INA2128UA 73 86
G = 10 INA2128U 100 106
INA2128UA 93 106
G = 100 INA2128U 120 125
INA2128UA 110 125
G = 1000 INA2128U 120 130
INA2128UA 110 130
INPUT BIAS CURRENT
IB Input bias current INA2128U ±2 ±5 nA
INA2128UA ±2 ±10
Input bias current drift  TA = –40°C to +85°C ±30 pA/℃
IOS Input offset current INA2128U ±1 ±5 nA
INA2128UA ±1 ±10
Input offset current drift  TA = –40°C to +85°C ±30 pA/℃
NOISE
eN Voltage noise (RTI) G = 1000, RS = 0 Ω f = 10 Hz 10 nV/√Hz
f = 100 Hz 8
f = 1 kHz 8
fB = 0.1 Hz to 10 Hz 0.2 µVPP
Current noise f = 10 Hz 0.9 pA/√Hz
f = 1 kHz 0.3
fB = 0.1 Hz to 10 Hz 30 pAPP
GAIN
Gain equation 1 + (50 kΩ / RG) V/V
G Gain 1 10000 V/V
GE Gain error G = 1 INA2128U ±0.01 ±0.024 %
INA2128UA  ±0.01 ±0.1
G = 10 INA2128U ±0.02 ±0.4
INA2128UA ±0.02 ±0.5
G = 100 INA2128U ±0.05 ±0.5
INA2128UA ±0.05 ±0.7
G = 1000 INA2128U ±0.5 ±1
INA2128UA ±0.5 ±2
Gain drift(2) TA = –40°C to +85°C  ±1 ±10 ppm/°C
50-kΩ or 49.4-kΩ resistance(3) ±25 ±100
Gain nonlinearity G = 1, VO = ±13.6 V INA2128U ±0.0001 ±0.001 % of FSR
INA2128UA ±0.0001 ±0.002
G = 10 INA2128U ±0.0003 ±0.002
INA2128UA ±0.0003 ±0.004
G = 100 INA2128U ±0.0005 ±0.002
INA2128UA ±0.0005 ±0.004
G = 1000(4) ±0.001
OUTPUT
Positive output voltage  (V+) – 1.4 V
Negative output voltage  (V–) + 1.4 V
CL Load capacitance Stable operation 1000 pF
ISC Short-circuit current Continuous to VS / 2 +6/–15 mA
FREQUENCY RESPONSE
BW Bandwidth, –3 dB G = 1 1.3 MHz
G = 10 600 kHz
G = 100 200
G = 1000 20
SR Slew rate G = 10, VO = ±10 V  1.2 V/µs
tS Settling time To 0.01%  G = 1 9 µs
G = 10 9
G = 100 12
G = 1000 80
Overload recovery 50% input overload 4 µs
POWER SUPPLY
IQ Total quiescent current VIN = 0 V ±1.4 ±1.5 mA
(1) Input common-mode voltage varies with output voltage; see Typical Characteristics.
(2) Specified by wafer test.
(3) Temperature coefficient of the 50-kΩ or 49.4-kΩ term in the gain equation.
(4) Nonlinearity measurements in G = 1000 are dominated by noise. Typical nonlinearity is ±0.001%.