Microchip Technology ADM00873

Overview

ADM00873 from Microchip Technology is an evaluation kit designed to demonstrate the performance of the MCP331x1D-XX family of 12-/14-/16-bit differential SAR ADCs, including the MCP33131D-10 (16-bit, 1 Msps), MCP33121D-10 (14-bit, 1 Msps), and MCP33111D-10 (12-bit, 1 Msps). It features a PIC32MZ EF Curiosity Board for data acquisition, a dedicated MCP331x1D evaluation board, and a PC-based SAR ADC Utility GUI for real-time waveform analysis and parameter validation in high-precision automotive and industrial data acquisition systems.

For engineers reviewing the ADM00873 datasheet, ADM00873 pinout, ADM00873 application, or ADM00873 equivalent, this page provides verified system-level interface details, confirmed hardware integration requirements with PIC32 microcontrollers, validated SPI timing constraints up to 100 MHz, and documented support for AEC-Q100 Grade 1 temperature operation (-40°C to +125°C) in battery management and motor control reference designs.

Technical Context

The ADM00873 implements a complete 3-wire SPI interface between the host PIC32MZ EF MCU and the MCP331x1D-XX ADC, using CNVST as chip select and supporting SCLK rates up to 100 MHz. It enables no-latency output mode and on-demand self-calibration commands via SDI, with precise timing alignment verified per DS20005947B Table 1-2.

Hardware design includes decoupling networks per datasheet recommendations: 1 µF ceramic on AVDD, 0.1 µF ceramic on DVIO, and 10 µF tantalum on VREF. The board supports both MSOP-10 and TDFN-10 package variants of the MCP331x1D-XX devices and validates differential input full-scale range of ±VREF (2.5V–5.1V) with 22 Ω/1.7 nF anti-aliasing filtering.

Key Specifications

Availability

ADM00873 is available at Aetrix Electronics and suitable for high-precision data acquisition, electric vehicle battery management systems, and motor control applications requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for ADM00873 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a leading provider of microcontrollers, analog, FPGA, and mixed-signal semiconductors headquartered in Chandler, Arizona.

The ADM00873 belongs to Microchip's evaluation kit product line, engineered specifically to accelerate development and validation of high-speed, low-power SAR ADC implementations in automotive-grade and industrial sensing applications.

FAQ

What is the primary function of the ADM00873 evaluation kit?

The ADM00873 evaluation kit is designed to demonstrate and validate the performance of the MCP331x1D-XX family of 12-/14-/16-bit differential SAR ADCs. It integrates a PIC32MZ EF Curiosity Board for host control, a dedicated ADC evaluation board, and PC software to capture real-time conversion data, execute self-calibration commands, and analyze dynamic parameters such as SNR, SINAD, THD, and SFDR under defined test conditions.

Which MCP331x1D-XX device variants are supported by the ADM00873?

The ADM00873 supports all members of the MCP331x1D-XX family, including the MCP33131D-10 (16-bit, 1 Msps), MCP33121D-10 (14-bit, 1 Msps), MCP33111D-10 (12-bit, 1 Msps), and their -05 variants (500 kSPS). Both MSOP-10 and TDFN-10 package options are accommodated on the evaluation board per Microchip DS20005947B layout specifications.

Does the ADM00873 support AEC-Q100 qualified operation?

Yes - the ADM00873 is built around the AEC-Q100 Grade 1 qualified MCP331x1D-XX ADCs, which are specified for operation from -40°C to +125°C. The evaluation kit's hardware and firmware have been validated across this full temperature range, enabling direct use in automotive battery monitoring, inverter current sensing, and other mission-critical applications requiring automotive reliability standards.

What software tools are included with the ADM00873?

The ADM00873 includes the SAR ADC Utility PC GUI, a Windows-based application that enables real-time waveform display, FFT analysis, histogram generation (for INL/DNL), and dynamic performance metrics (SNR, SINAD, THD, SFDR). It also supports issuing on-demand recalibrate commands and configuring SPI timing parameters aligned with DS20005947B Table 1-2 timing specifications.

Can the ADM00873 be used with non-PIC32 host controllers?

No - the ADM00873 is specifically designed for use with the PIC32MZ EF Curiosity Board, which provides preloaded firmware for SPI communication, CNVST synchronization, and data streaming. While the underlying MCP331x1D-XX ADCs are SPI-compatible and interoperable with other hosts, the ADM00873 kit itself does not include generic breakout headers, level-shifting circuitry, or firmware abstraction layers required for third-party MCU integration.