MAX® 10 Analog to Digital Converter User Guide

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ID 683596
Date 3/10/2025
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Visible to Intel only — GUID: ggx1512553013765

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Document Table of Contents
Document Table of Contents x
1. MAX® 10 Analog to Digital Converter Overview 2. MAX® 10 ADC Architecture and Features 3. MAX® 10 ADC Design Considerations 4. MAX® 10 ADC Implementation Guides 5. Modular ADC Core Intel® FPGA IP and Modular Dual ADC Core Intel® FPGA IP References 6. MAX® 10 Analog to Digital Converter User Guide Archives 7. Document Revision History for the MAX® 10 Analog to Digital Converter User Guide
1. MAX® 10 Analog to Digital Converter Overview x
1.1. ADC Block Counts in MAX® 10 Devices 1.2. ADC Channel Counts in MAX® 10 Devices 1.3. MAX® 10 ADC Vertical Migration Support 1.4. MAX® 10 Single or Dual Supply Devices 1.5. MAX® 10 ADC Conversion
1.5. MAX® 10 ADC Conversion x
1.5.1. Voltage Representation Conversion Calculation Example for VREF of 2.5 V
2. MAX® 10 ADC Architecture and Features x
2.1. MAX® 10 ADC Hard IP Block 2.2. Modular ADC Core and Modular Dual ADC Core IP Cores 2.3. Altera® FPGA ADC HAL Driver 2.4. ADC Toolkit for Testing ADC Performance 2.5. ADC Logic Simulation Output
2.1. MAX® 10 ADC Hard IP Block x
2.1.1. ADC Block Locations 2.1.2. Single or Dual ADC Devices 2.1.3. ADC Analog Input Pins 2.1.4. ADC Prescaler 2.1.5. ADC Clock Sources 2.1.6. ADC Voltage Reference 2.1.7. ADC Temperature Sensing Diode 2.1.8. ADC Sequencer 2.1.9. ADC Timing
2.1.7. ADC Temperature Sensing Diode x
2.1.7.1. Temperature Measurement Code Conversion 2.1.7.2. Temperature Measurement Sampling Rate
2.1.8. ADC Sequencer x
2.1.8.1. Guidelines: ADC Sequencer in Modular Dual ADC Core IP Core
2.2. Modular ADC Core and Modular Dual ADC Core IP Cores x
2.2.1. Modular ADC Core IP Core Configuration Variants 2.2.2. Modular ADC Core and Modular Dual ADC Core IP Cores Architecture
2.2.1. Modular ADC Core IP Core Configuration Variants x
2.2.1.1. Configuration 1: Standard Sequencer with Avalon-MM Sample Storage 2.2.1.2. Configuration 2: Standard Sequencer with Avalon-MM Sample Storage and Threshold Violation Detection 2.2.1.3. Configuration 3: Standard Sequencer with External Sample Storage 2.2.1.4. Configuration 4: ADC Control Core Only
2.2.2. Modular ADC Core and Modular Dual ADC Core IP Cores Architecture x
2.2.2.1. ADC Control Core 2.2.2.2. Sequencer Core 2.2.2.3. Sample Storage Core 2.2.2.4. Response Merge Core 2.2.2.5. Dual ADC Synchronizer Core 2.2.2.6. Threshold Detection Core
2.5. ADC Logic Simulation Output x
2.5.1. Fixed ADC Logic Simulation Output 2.5.2. User-Specified ADC Logic Simulation Output
3. MAX® 10 ADC Design Considerations x
3.1. Guidelines: ADC Ground Plane Connection 3.2. Guidelines: Board Design for Power Supply Pin and ADC Ground (REFGND) 3.3. Guidelines: Board Design for Analog Input 3.4. Guidelines: Board Design for ADC Reference Voltage Pin
4. MAX® 10 ADC Implementation Guides x
4.1. Creating MAX® 10 ADC Design 4.2. Customizing and Generating Modular ADC Core IP Core 4.3. Parameters Settings for Generating ALTPLL IP Core 4.4. Parameters Settings for Generating Modular ADC Core or Modular Dual ADC Core IP Core 4.5. Completing ADC Design
5. Modular ADC Core Intel® FPGA IP and Modular Dual ADC Core Intel® FPGA IP References x
5.1. Modular ADC Core Parameters Settings 5.2. Modular Dual ADC Core Parameters Settings 5.3. Valid ADC Sample Rate and Input Clock Combination 5.4. Modular ADC Core and Modular Dual ADC Core Interface Signals 5.5. Modular ADC Core Register Definitions 5.6. ADC HAL Device Driver for Nios® Processor
5.1. Modular ADC Core Parameters Settings x
5.1.1. Modular ADC Core IP Core Channel Name to MAX® 10 Device Pin Name Mapping
5.2. Modular Dual ADC Core Parameters Settings x
5.2.1. Modular Dual ADC Core IP Core Channel Name to MAX® 10 Device Pin Name Mapping
5.4. Modular ADC Core and Modular Dual ADC Core Interface Signals x
5.4.1. Command Interface of Modular ADC Core and Modular Dual ADC Core 5.4.2. Response Interface of Modular ADC Core and Modular Dual ADC Core 5.4.3. Threshold Interface of Modular ADC Core and Modular Dual ADC Core 5.4.4. CSR Interface of Modular ADC Core and Modular Dual ADC Core 5.4.5. IRQ Interface of Modular ADC Core and Modular Dual ADC Core 5.4.6. Peripheral Clock Interface of Modular ADC Core and Modular Dual ADC Core 5.4.7. Peripheral Reset Interface of Modular ADC Core and Modular Dual ADC Core 5.4.8. ADC PLL Clock Interface of Modular ADC Core and Modular Dual ADC Core 5.4.9. ADC PLL Locked Interface of Modular ADC Core and Modular Dual ADC Core
5.5. Modular ADC Core Register Definitions x
5.5.1. Sequencer Core Registers 5.5.2. Sample Storage Core Registers
5.6. ADC HAL Device Driver for Nios® Processor x
5.6.1. Driver API
1. MAX® 10 Analog to Digital Converter Overview
2. MAX® 10 ADC Architecture and Features
3. MAX® 10 ADC Design Considerations
4. MAX® 10 ADC Implementation Guides
5. Modular ADC Core Intel® FPGA IP and Modular Dual ADC Core Intel® FPGA IP References
6. MAX® 10 Analog to Digital Converter User Guide Archives
7. Document Revision History for the MAX® 10 Analog to Digital Converter User Guide

1.5.1. Voltage Representation Conversion

Use the following equations to convert the voltage between analog value and digital representation.
Equation 1. Conversion from Analog Value to Digital Code

Equation 2. Conversion from Digital Code to Analog Value

Calculation Example for VREF of 2.5 V

Analog voltage value to digital code (in decimal), where signal in is 2 V:

Digital code to analog voltage value, approximation to 4 decimal points:

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