SBOS741C April 2017  – December 2017 INA180 , INA2180 , INA4180

UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Device Comparison Table
  6. Pin Configurations and Functions
  7. Specifications
    1. 7.1Absolute Maximum Ratings
    2. 7.2ESD Ratings
    3. 7.3Recommended Operating Conditions
    4. 7.4Thermal Information
    5. 7.5Electrical Characteristics
    6. 7.6Typical Characteristics
  8. Detailed Description
    1. 8.1Overview
    2. 8.2Functional Block Diagrams
    3. 8.3Feature Description
      1. 8.3.1High Bandwidth and Slew Rate
      2. 8.3.2Wide Input Common-Mode Voltage Range
      3. 8.3.3Precise Low-Side Current Sensing
      4. 8.3.4Rail-to-Rail Output Swing
    4. 8.4Device Functional Modes
      1. 8.4.1Normal Mode
      2. 8.4.2Input Differential Overload
      3. 8.4.3Shutdown Mode
  9. Application and Implementation
    1. 9.1Application Information
      1. 9.1.1Basic Connections
      2. 9.1.2RSENSE and Device Gain Selection
      3. 9.1.3Signal Filtering
    2. 9.2Typical Application
      1. 9.2.1Design Requirements
      2. 9.2.2Detailed Design Procedure
      3. 9.2.3Application Curve
  10. 10Power Supply Recommendations
    1. 10.1Common-Mode Transients Greater Than 26 V
  11. 11Layout
    1. 11.1Layout Guidelines
    2. 11.2Layout Examples
  12. 12Device and Documentation Support
    1. 12.1Documentation Support
      1. 12.1.1Related Documentation
    2. 12.2Related Links
    3. 12.3Receiving Notification of Documentation Updates
    4. 12.4Community Resources
    5. 12.5Trademarks
    6. 12.6Electrostatic Discharge Caution
    7. 12.7Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Features

  • Common-Mode Range (VCM): –0.2 V to +26 V
  • High Bandwidth: 350 kHz (A1 Devices)
  • Offset Voltage:
    • ±150 µV (Max) at VCM = 0 V
    • ±500 µV (Max) at VCM = 12 V
  • Output Slew Rate: 2 V/µs
  • Accuracy:
    • ±1% Gain Error (Max)
    • 1-µV/°C Offset Drift (Max)
  • Gain Options:
    • 20 V/V (A1 Devices)
    • 50 V/V (A2 Devices)
    • 100 V/V (A3 Devices)
    • 200 V/V (A4 Devices)
  • Quiescent Current: 260 µA Max (INA180)

Applications

  • Motor Control
  • Battery Monitoring
  • Power Management
  • Lighting Control
  • Overcurrent Detection
  • Solar Inverters

Description

The INA180, INA2180, and INA4180 (INAx180) current sense amplifiers are designed for cost-optimized applications. These devices are part of a family of current-sense amplifiers (also called current-shunt monitors) that sense voltage drops across current-sense resistors at common-mode voltages from –0.2 V to +26 V, independent of the supply voltage. The INAx180 integrate a matched resistor gain network in four, fixed-gain device options: 20 V/V, 50 V/V, 100 V/V, or 200 V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift.

All these devices operate from a single 2.7-V to 5.5-V power supply. The single-channel INA180 draws a maximum supply current of 260 µA; whereas, the dual-channel INA2180 draws a maximum supply current of 500 µA, and the quad channel draws a maximum supply current of 900 µA..

The INA180 is available in a 5-pin, SOT-23 package with two different pin configurations. The INA2180 is available in an 8-pin VSSOP package. The INA4180 is available in a 14-pin TSSOP package. All device options are specified over the extended operating temperature range of –40°C to +125°C.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
INA180SOT-23 (5)2.90 mm × 1.60 mm
INA2180VSSOP (8)3.00 mm × 3.00 mm
INA4180(2)TSSOP (14)5.00 mm × 4.40 mm
  1. For all available packages, see the package option addendum at the end of the datasheet.
  2. INA4180 is preview device.

Typical Application Circuit

INA180 INA2180 INA4180 ina180-front-page-diagram.gif