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AMC1311x High-Impedance, 2-V Input, Reinforced Isolated Amplifiers
SBAS786C
December 2017 – June 2022
AMC1311
PRODUCTION DATA
CONTENTS
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AMC1311x High-Impedance, 2-V Input, Reinforced Isolated Amplifiers
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Power Ratings
7.6
Insulation Specifications
7.7
Safety-Related Certifications
7.8
Safety Limiting Values
7.9
Electrical Characteristics
7.10
Switching Characteristics
7.11
Timing Diagram
7.12
Insulation Characteristics Curves
7.13
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Analog Input
8.3.2
Isolation Channel Signal Transmission
8.3.3
Analog Output
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Input Filter Design
9.2.2.2
Differential to Single-Ended Output Conversion
9.2.3
Application Curve
9.3
What To Do and What Not To Do
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Documentation
12.2
Receiving Notification of Documentation Updates
12.3
Support Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DWV|8
MPDS382B
Thermal pad, mechanical data (Package|Pins)
Orderable Information
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DATA SHEET
AMC1311x High-Impedance, 2-V Input, Reinforced Isolated Amplifiers
1
Features
2-V, high-impedance input voltage range optimized for isolated voltage measurement
Fixed gain: 1
Low DC errors:
AMC1311
:
Offset error: ±9.9 mV (maximum)
Offset drift: ±20 μV/°C (typical)
Gain error: ±1% (maximum)
Gain drift: ±30 ppm/°C (typical)
AMC1311B
:
Offset error: ±1.5 mV (maximum)
Offset drift: ±10 μV/°C (maximum)
Gain error: ±0.2% (maximum)
Gain drift: ±40 ppm/°C (maximum)
Nonlinearity: 0.04% (maximum)
3.3-V operation on high-side (
AMC1311B
)
High CMTI: 100 kV/μs (minimum) (
AMC1311B
)
Missing high-side supply indication
Safety-related certifications:
7000-V
PK
reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
5000-V
RMS
isolation for 1 minute per UL1577
Fully specified over the extended industrial temperature range: –40°C to +125°C
2
Applications
Isolated voltage sensing in:
Motor drives
Frequency inverters
Uninterruptible power supplies