SBOS793G
April 2017 – May 2020
INA181
,
INA2181
,
INA4181
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Application Circuit
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
Pin Functions: INA181 (Single Channel)
Pin Functions: INA2181 (Dual Channel) and INA4181 (Quad Channel)
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagrams
8.3
Feature Description
8.3.1
High Bandwidth and Slew Rate
8.3.2
Bidirectional Current Monitoring
8.3.3
Wide Input Common-Mode Voltage Range
8.3.4
Precise Low-Side Current Sensing
8.3.5
Rail-to-Rail Output Swing
8.4
Device Functional Modes
8.4.1
Normal Mode
8.4.2
Unidirectional Mode
8.4.3
Bidirectional Mode
8.4.4
Input Differential Overload
8.4.5
Shutdown Mode
9
Application and Implementation
9.1
Application Information
9.1.1
Basic Connections
9.1.2
RSENSE and Device Gain Selection
9.1.3
Signal Filtering
9.1.4
Summing Multiple Currents
9.1.5
Detecting Leakage Currents
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curve
10
Power Supply Recommendations
10.1
Common-Mode Transients Greater Than 26 V
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
Development Support
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Related Links
12.4
Receiving Notification of Documentation Updates
12.5
Support Resources
12.6
Trademarks
12.7
Electrostatic Discharge Caution
12.8
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PW|20
MPDS362A
Thermal pad, mechanical data (Package|Pins)
PW|20
QFND419A
Orderable Information
sbos793g_oa
sbos793g_pm
1
Features
Common-mode range (V
CM
): –0.2 V to +26 V
High bandwidth: 350 kHz (A1 devices)
Offset voltage:
±150 µV (maximum) at V
CM
= 0 V
±500 µV (maximum) at V
CM
= 12 V
Output slew rate: 2 V/µs
Bidirectional current-sensing capability
Accuracy:
±1% gain error (maximum)
1-µV/°C offset drift (maximum)
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
(INA181)