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AMC1035 Delta-Sigma Modulator With Bipolar Input of ±1 V and Reference Output of 2.5 V
SBAS837B
August 2018 – April 2020
AMC1035
PRODUCTION DATA.
CONTENTS
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AMC1035 Delta-Sigma Modulator With Bipolar Input of ±1 V and Reference Output of 2.5 V
1
Features
2
Applications
3
Description
Device Images
Application Example
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
Switching Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Analog Input
7.3.2
Modulator
7.3.3
Reference Output
7.3.4
Clock Input
7.3.5
Digital Output
7.3.6
Manchester Coding Feature
7.4
Device Functional Modes
7.4.1
Output Behavior in Case of a Full-Scale Input
7.4.2
Fail-Safe Output
8
Application and Implementation
8.1
Application Information
8.1.1
Digital Filter Usage
8.2
Typical Applications
8.2.1
Voltage Sensing
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curve
8.2.2
IGBT Temperature Sensing
8.2.3
What to Do and What Not to Do
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
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DATA SHEET
AMC1035 Delta-Sigma Modulator With Bipolar Input of ±1 V and Reference Output of 2.5 V
1
Features
Delta-sigma modulator optimized for voltage and temperature sensing:
±1-V input voltage range
High differential input resistance: 1.6 GΩ (typ)
Integrated 2.5-V, ±5-mA reference for ratiometric measurement
Excellent DC performance:
Offset error: ±0.5 mV (max)
Offset drift: ±6 µV/°C (max)
Gain error: ±0.25% (max)
Gain drift: ±45 ppm/°C (max)
Ratiometric gain drift: ±15 ppm/°C (max)
Selectable manchester encoded or uncoded bitstream output
Fully specified over the extended industrial temperature range: –40°C to +125°C
2
Applications
AC voltage and temperature sensing in industrial applications:
Motor drives
Photovoltaic inverters
Uninterruptible power supplies
Industrial transport systems
