ZHCSG77F April   2017  – March 2019 INA181 , INA2181 , INA4181

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用电路
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions: INA181 (Single Channel)
    2.     Pin Functions: INA2181 (Dual Channel) and INA4181 (Quad Channel)
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 High Bandwidth and Slew Rate
      2. 8.3.2 Bidirectional Current Monitoring
      3. 8.3.3 Wide Input Common-Mode Voltage Range
      4. 8.3.4 Precise Low-Side Current Sensing
      5. 8.3.5 Rail-to-Rail Output Swing
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Mode
      2. 8.4.2 Unidirectional Mode
      3. 8.4.3 Bidirectional Mode
      4. 8.4.4 Input Differential Overload
      5. 8.4.5 Shutdown Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Basic Connections
      2. 9.1.2 RSENSE and Device Gain Selection
      3. 9.1.3 Signal Filtering
      4. 9.1.4 Summing Multiple Currents
      5. 9.1.5 Detecting Leakage Currents
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
    1. 10.1 Common-Mode Transients Greater Than 26 V
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 开发支持
    2. 12.2 文档支持
      1. 12.2.1 相关文档
    3. 12.3 相关链接
    4. 12.4 接收文档更新通知
    5. 12.5 社区资源
    6. 12.6 商标
    7. 12.7 静电放电警告
    8. 12.8 术语表
  13. 13机械、封装和可订购信息

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

7.5 Electrical Characteristics

at TA = 25°C, VS = 5 V, VREF = VS / 2, VIN+ = 12 V, and VSENSE = VIN+ – VIN– (unless otherwise noted)
PARAMETER CONDITIONS MIN TYP MAX UNIT
INPUT
CMRR Common-mode rejection ratio, RTI (1) VIN+ = 0 V to 26 V, VSENSE = 0 mV,
TA = –40°C to +125°C		 84 100 dB
VOS Offset voltage, RTI VSENSE = 0 mV ±100 ±500 μV
VSENSE = 0 mV, VIN+ = 0 V ±25 ±150 μV
dVOS/dT Offset drift, RTI VSENSE = 0 mV, TA = –40°C to +125°C 0.2 1 μV/°C
PSRR Power-supply rejection ratio, RTI VS = 2.7 V to 5.5 V, VIN+ = 12 V,
VSENSE = 0 mV		 ±8 ±40 μV/V
IIB Input bias current VSENSE = 0 mV, VIN+ = 0 V -6 µA
VSENSE = 0 mV 75 µA
IIO Input offset current VSENSE = 0 mV ±0.05 µA
OUTPUT
G Gain A1 devices 20 V/V
A2 devices 50 V/V
A3 devices 100 V/V
A4 devices 200 V/V
EG Gain error VOUT = 0.5 V to VS – 0.5 V,
TA = –40°C to +125°C		 ±0.1% ±1%
Gain error vs temperature TA = –40°C to +125°C 1.5 20 ppm/°C
Nonlinearity error VOUT = 0.5 V to VS – 0.5 V ±0.01%
Maximum capacitive load No sustained oscillation 1 nF
VOLTAGE OUTPUT (2)
VSP Swing to VS power-supply rail(3) RL = 10 kΩ to GND, TA = –40°C to +125°C (VS) – 0.02 (VS) – 0.03 V
VSN Swing to GND(3) RL = 10 kΩ to GND, TA = –40°C to +125°C (VGND) + 0.0005 (VGND) + 0.005 V
FREQUENCY RESPONSE
BW Bandwidth A1 devices, CLOAD = 10 pF 350 kHz
A2 devices, CLOAD = 10 pF 210 kHz
A3 devices, CLOAD = 10 pF 150 kHz
A4 devices, CLOAD = 10 pF 105 kHz
SR Slew rate 2 V/µs
NOISE, RTI(1)
Voltage noise density 40 nV/√Hz
POWER SUPPLY
IQ Quiescent current INA181 VSENSE = 0 mV 195 260 µA
VSENSE = 0 mV, TA = –40°C to +125°C 300 µA
INA2181 VSENSE = 0 mV 356 500 µA
VSENSE = 0 mV, TA = –40°C to +125°C 520 µA
INA4181 VSENSE = 0 mV 690 900 µA
VSENSE = 0 mV, TA = –40°C to +125°C 1000 µA
(1) RTI = referred-to-input.
(2) See Figure 19.
(3) Swing specifications are tested with an overdriven input condition.