ZHCSJE3C february   2019  – august 2021 INA191 , INA2191

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    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. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Precision Current Measurement
      2. 7.3.2 Low Input Bias Current
      3. 7.3.3 Low Quiescent Current With Output Enable
      4. 7.3.4 Bidirectional Current Monitoring (INA2191 Only)
      5. 7.3.5 High-Side and Low-Side Current Sensing
      6. 7.3.6 High Common-Mode Rejection
      7. 7.3.7 Rail-to-Rail Output Swing
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Unidirectional Mode
      3. 7.4.3 Bidirectional Mode (INA2191 Only)
      4. 7.4.4 Input Differential Overload
      5. 7.4.5 Shutdown
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Basic Connections
      2. 8.1.2 RSENSE and Device Gain Selection
      3. 8.1.3 Signal Conditioning
      4. 8.1.4 Common-Mode Voltage Transients
    2. 8.2 Typical Application
      1. 8.2.1 Microamp Current Measurement
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 静电放电警告
    6. 11.6 术语表
  13. 12Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • YFD|6
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.5 Electrical Characteristics

at TA = 25°C, VSENSE = VIN+ – VIN–, VS = 1.8 V to 5.0 V, VIN+ = 12 V, VREF = VS / 2 (INA2191), and VENABLE = VS (unless otherwise noted)
PARAMETER CONDITIONS MIN TYP MAX UNIT
INPUT
CMRR Common-mode rejection ratio, RTI(1) VIN+ = –0.1 V to 40 V, TA = –40°C to +125°C 132 150 dB
VOS Offset voltage, RTI(1) VS = 1.8 V –2.5 ±12 µV
dVOS/dT Offset drift, RTI TA = –40°C to +125°C 10 130 nV/°C
PSRR Power-supply rejection ratio, RTI VS = 1.7 V to 5.5 V –1 ±5 µV/V
IIB Input bias current VSENSE = 0 mV 0.1 3 nA
IIO Input offset current VSENSE = 0 mV ±0.07 nA
OUTPUT
G Gain A1 devices 25 V/V
A2 devices 50
A3 devices 100
A4 devices 200
A5 devices 500
EG Gain error VOUT = 0.1 V to VS – 0.1 V A1 devices, INA191 –0.17% ±0.35%
A1 devices, INA2191 +0.05% ±0.25%
A2, A3, A4, A5 devices –0.04% ±0.25%
Gain error drift TA = –40°C to +125°C 2 7 ppm/°C
Nonlinearity error VOUT = 0.1 V to VS – 0.1 V ±0.01%
RVRR Reference voltage rejection ratio INA2191 only,
VREF = 100 mV to VS – 100 mV,
TA = –40°C to +125°C		 A1 devices ±2 ±12 µV/V
A2 devices ±1 ±6
A3 devices ±0.5 ±4
A4, A5 devices ±0.25 ±3
Maximum capacitive load No sustained oscillation 1 nF
VOLTAGE OUTPUT
VSP Swing to VS power-supply rail VS = 1.8 V, RL = 10 kΩ to GND, TA = –40°C to +125°C (VS) – 23 (VS) – 40 mV
VSN Swing to GND VS = 1.8 V, RL = 10 kΩ to GND, TA = –40°C to +125°C,
VSENSE = –10 mV, VREF = 0 V (INA2191)		 (VGND) + 0.05 (VGND) + 1 mV
VZL Zero current output voltage VS = 1.8 V, RL = 10 kΩ to GND,
TA = –40°C to +125°C, VSENSE = 0 mV,
for INA2191 VREF = 0 V		 A1, A2, A3 devices (VGND) + 1 (VGND) + 3 mV
A4 devices (VGND) + 2 (VGND) + 4 mV
A5 devices (VGND) + 3 (VGND) + 7 mV
FREQUENCY RESPONSE
BW Bandwidth CLOAD = 10 pF A1 devices 45 kHz
A2 devices 37
A3 devices  35
A4 devices  33
A5 devices 27
SR Slew rate VS = 5.0 V, VOUT = 0.5 V to 4.5 V 0.3 V/µs
tS Settling time From current step to within 1% of final value 30 µs
NOISE, RTI(1)
Voltage noise density 75 nV/√Hz
ENABLE
IEN Leakage input current 0 V ≤ VENABLE ≤ VS 1 100 nA
VIH High-level input voltage TA = –40°C to +125°C 1.35 5.5 V
VIL Low-level input voltage TA = –40°C to +125°C 0 0.4 V
VHYS Hysteresis 100 mV
IODIS Output leakage disabled VS = 1.8 V, VOUT = 0 V to 1.8 V, VENABLE = 0 V 1 5 µA
Output leakage disabled (INA2191) VS = 5 V, VOUT = 0 V to 5.0 V, VENABLE = 0 V 1 5 µA
POWER SUPPLY
IQ Quiescent current (INA191) VS = 1.8 V, VSENSE = 0 mV  43 65 µA
VS = 1.8 V, VSENSE = 0 mV, TA = –40°C to +125°C  85 µA
Quiescent current (INA2191) VS = 1.8 V, VSENSE = 0 mV (Dual Channel) 96 130 µA
VS = 1.8 V, VSENSE = 0 mV, TA = –40°C to +125°C 180 µA
IQDIS Quiescent current disabled (INA191) VENABLE < 0.4 V, VSENSE = 0 mV (Single Channel) 10 100 nA
IQDIS Quiescent current disabled (INA2191) VENABLE1 < 0.4 V, VENABLE2 = < 0.4 V, VSENSE = 0 mV 20 200 nA
(1) RTI = referred-to-input.
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