SBOS378A
March 2019 – November 2023
INA185
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagrams
6.3
Feature Description
6.3.1
High Bandwidth and Slew Rate
6.3.2
Bidirectional Current Monitoring
6.3.3
Wide Input Common-Mode Voltage Range
6.3.4
Precise Low-Side Current Sensing
6.3.5
Rail-to-Rail Output Swing
6.4
Device Functional Modes
6.4.1
Normal Mode
6.4.2
Unidirectional Mode
6.4.3
Bidirectional Mode
6.4.4
Input Differential Overload
6.4.5
Shutdown Mode
7
Application and Implementation
7.1
Application Information
7.1.1
Basic Connections
7.1.2
RSENSE and Device Gain Selection
7.1.3
Signal Filtering
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.3
Application Curve
7.3
Power Supply Recommendations
7.3.1
Common-Mode Transients Greater Than 26 V
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
Development Support
8.2
Documentation Support
8.2.1
Related Documentation
8.3
Receiving Notification of Documentation Updates
8.4
Support Resources
8.5
Trademarks
8.6
Electrostatic Discharge Caution
8.7
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
1
Features
SC70 and SOT-563 packages
SC70 offers compatibility to existing solutions
SOT-563 is 39% smaller footprint than SC70
SOT-563 dimensions is 1.6 mm × 1.6 mm × 0.55 mm
Common-mode range (V
CM
): –0.2 V to +26 V
High bandwidth: 350 kHz (A1 devices)
Offset voltage:
±55 µV (maximum) at V
CM
= 0 V
±100 µV (maximum) at V
CM
= 12 V (A4 device)
Output slew rate: 2 V/µs
Bidirectional current-sensing capability
Accuracy:
Maximum gain error (A1, A2, A3): ±0.2%
Maximum offset drift: 0.5 µV/°C
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 (maximum)