SBOS956
December 2018
INA240-SEP
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Application
Enhanced PWM Rejection
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Amplifier Input Signal
7.3.1.1
Enhanced PWM Rejection Operation
7.3.1.2
Input Signal Bandwidth
7.3.2
Selecting the Sense Resistor (RSENSE)
7.4
Device Functional Modes
7.4.1
Adjusting the Output Midpoint With the Reference Pins
7.4.2
Reference Pin Connections for Unidirectional Current Measurements
7.4.2.1
Ground Referenced Output
7.4.2.2
VS Referenced Output
7.4.3
Reference Pin Connections for Bidirectional Current Measurements
7.4.3.1
Output Set to External Reference Voltage
7.4.3.2
Output Set to Midsupply Voltage
7.4.3.3
Output Set to Mid-External Reference
7.4.3.4
Output Set Using Resistor Divider
7.4.4
Calculating Total Error
7.4.4.1
Error Sources
7.4.4.2
Reference Voltage Rejection Ratio Error
7.4.4.2.1
Total Error Example 1
7.4.4.2.2
Total Error Example 2
8
Application and Implementation
8.1
Application Information
8.1.1
Input Filtering
8.2
Typical Applications
8.2.1
Inline Motor Current-Sense Application
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curve
8.2.2
Solenoid Drive Current-Sense Application
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.3
Application Curve
8.3
Do's and Don'ts
8.3.1
High-Precision Applications
8.3.2
Kelvin Connection from the Current-Sense Resistor
9
Power Supply Recommendations
9.1
Power Supply Decoupling
10
Layout
10.1
Layout Guidelines
10.1.1
Connection to the Current-Sense Resistor
10.2
Layout Example
11
Device and Documentation Support
11.1
Receiving Notification of Documentation Updates
11.2
Community Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PW|8
MPDS568
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbos956_oa
sbos956_pm
8.2.2.3
Application Curve
Figure 34.
Solenoid Drive Current Sense Input and Output Signals