SBOS893D August   2018  – June 2020 INA821

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      INA821 Simplified Internal Schematic
      2.      Typical Distribution of Input Stage Offset Voltage Drift
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  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: Table of Graphs
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Setting the Gain
        1. 8.3.1.1 Gain Drift
      2. 8.3.2 EMI Rejection
      3. 8.3.3 Input Common-Mode Range
      4. 8.3.4 Input Protection
      5. 8.3.5 Operating Voltage
      6. 8.3.6 Error Sources
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Reference Pin
      2. 9.1.2 Input Bias Current Return Path
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 Other Application Examples
      1. 9.3.1 Resistance Temperature Detector Interface
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Device Comparison Table

DEVICE DESCRIPTION GAIN EQUATION RG PINS AT PIN
INA821 35-µV Offset, 0.4 µV/°C VOS Drift, 7-nV/√Hz Noise, High-Bandwidth, Precision Instrumentation Amplifier G = 1 + 49.4 kΩ / RG 2, 3
INA819 35-µV Offset, 0.4 µV/°C VOS Drift, 8-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier G = 1 + 50 kΩ / RG 2, 3
INA818 35-µV Offset, 0.4 µV/°C VOS Drift, 8-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier G = 1 + 50 kΩ / RG 1, 8
INA828 50-µV Offset, 0.5 µV/°C VOS Drift, 7-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier G = 1 + 50 kΩ / RG 1, 8
INA333 25-µV VOS, 0.1 µV/°C VOS Drift, 1.8-V to 5-V, RRO, 50-µA IQ, Chopper-Stabilized INA G = 1 + 100 kΩ / RG 1, 8
PGA280 20-mV to ±10-V Programmable Gain IA With 3-V or 5-V Differential Output; Analog Supply up to ±18 V Digital programmable N/A
INA159 G = 0.2 V Differential Amplifier for ±10-V to 3-V and 5-V Conversion G = 0.2 V/V N/A
PGA112 Precision Programmable Gain Op Amp With SPI Digital programmable N/A