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INA310x-Q1 AEC-Q100, –4 V to 110 V, 1.3 MHz, Ultra-Precise Current Sense Amplifier With Open-Drain Comparator and Reference
SBOSAD3
may 2023
INA310A-Q1
,
INA310B-Q1
PRODUCTION DATA
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INA310x-Q1 AEC-Q100, –4 V to 110 V, 1.3 MHz, Ultra-Precise Current Sense Amplifier With Open-Drain Comparator and Reference
1
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and 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 Common-Mode Signal
7.3.2
Input-Signal Bandwidth
7.3.3
Low Input Bias Current
7.3.4
Low VSENSE Operation
7.3.5
Wide Fixed Gain Output
7.3.6
Wide Supply Range
7.3.7
Integrated Comparator
7.3.8
RESET Function
7.3.9
Short Propagation Delay
7.3.10
Comparator Input Bias Current
7.4
Device Functional Modes
7.4.1
Basic Connections
7.4.1.1
Overcurrent Threshold Connection
7.4.2
High-Side Switch Overcurrent Shutdown
7.4.3
Bidirectional Overcurrent Comparator
8
Application and Implementation
8.1
Application Information
8.1.1
RSENSE and Device Gain Selection
8.2
Typical Application
8.2.1
Current Sensing in a Solenoid Application
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Overload Recovery With Negative VSENSE
8.2.1.4
Application Curve
8.2.2
Low-Side Switch Overcurrent Shutdown
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.3
Application Curve
8.3
Power Supply Recommendations
8.3.1
Power Supply Decoupling
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Receiving Notification of Documentation Updates
9.2
Support Resources
9.3
Trademarks
9.4
Electrostatic Discharge Caution
9.5
Glossary
10
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DGK|8
MPDS028E
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbosad3_oa
sbosad3_pm
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Data Sheet
INA310x-Q1
AEC-Q100,
–4 V to 110 V, 1.3 MHz, Ultra-Precise Current Sense Amplifier With Open-Drain Comparator and Reference
1
Features
AEC-Q100 qualified for automotive applications:
Temperature grade 1: −40°C to +125°C, T
A
Functional Safety-Capable
Documentation available to aid functional safety system design
Wide common-mode voltage:
Operational voltage: −4 V to +110 V
Survival voltage: −20 V to +120 V
High signal bandwidth: 1.3 MHz
Slew rate: 2.5 V/µs
Excellent CMRR: 160 dB
Accuracy
Gain error (maximum)
Version A: 0.15%, 10 ppm/°C drift
Version B: 0.5%, 20 ppm/°C drift
Offset voltage (maximum)
Version A: ±20 µV, ±0.25 µV/°C drift
Version B: ±150 µV, ±1 µV/°C drift
Onboard open-drain comparator
Internal comparator voltage reference: 0.6 V
Propagation delay time: 1 µs
Latching capability on comparator
Available gains:
INA310A1
-Q1
, INA310B1
-Q1
: 20 V/V
INA310A2
-Q1
, INA310B2
-Q1
: 50 V/V
INA310A3
-Q1
, INA310B3
-Q1
: 100 V/V
INA310A4
-Q1
, INA310B4
-Q1
: 200 V/V
INA310A5
-Q1
, INA310B5
-Q1
: 500 V/V
Package options: VSSOP-8