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
1
Features
VID V62/18615
Radiation Hardened
Single Event Latch-up (SEL) Immune to 43 MeV-cm
2
/mg at 125°C
ELDRS Free to 30 krad(Si)
Total Ionizing Dose (TID) RLAT for Every Wafer Lot up to 20 krad(Si)
Space Enhanced Plastic
Controlled Baseline
Gold Wire
NiPdAu Lead Finish
One Assembly and Test Site
One Fabrication Site
Available in Military (–55°C to 125°C) Temperature Range
Extended Product Life Cycle
Extended Product-Change Notification
Product Traceability
Enhanced Mold Compound for Low Outgassing
Enhanced PWM Rejection
Excellent CMRR: 132 dB (Typical)
Wide Common-Mode Range: –4 V to 80 V
Gain: 20 V/V:
Gain Error: 0.2% (Maximum)
Gain Drift: 2.5 ppm/°C (Maximum)
Offset Voltage: ±25 μV (Maximum)
Offset Drift: 250 nV/°C (Maximum)
Quiescent Current: 2.4 mA (Maximum)