Texas Instruments ADS7924EVM-PDK

Overview

ADS7924EVM-PDK from Texas Instruments is an evaluation kit comprising the ADS7924EVM board, MSP430-based MMB3 motherboard, and ADCPro™ software for evaluating the ADS7924 - a 12-bit, low-power, I²C-interface analog-to-digital converter. It supports configurable analog input channels (CH0–CH3), programmable acquisition timing (6–62 µs), and real-time interrupt/alarm monitoring via dedicated registers.

For engineers reviewing the ADS7924EVM-PDK datasheet, ADS7924EVM-PDK pinout, ADS7924EVM-PDK application, or ADS7924EVM-PDK equivalent, this kit enables rapid validation of ADS7924 performance in sensor signal chains, industrial monitoring systems, and embedded data acquisition where I²C-based ADC integration, flexible power sequencing, and on-the-fly register configuration are critical.

Technical Context

The ADS7924EVM-PDK implements full digital control of the ADS7924 via I²C using the MMB3's USB-to-serial bridge and firmware-loaded MSP430 microcontroller. It supports all five auto-trigger ADC operation modes (e.g., Auto trig/sleep scan, Auto bursttrig/sleep scan) and exposes register-level access to PWRCON, INT CONFIG, and ALARM LIMIT settings through the ADCPro GUI.

Analog interface includes dual-access points (J1 header and J4 terminal block) for CH0–CH3, REF+, REF−, and AGND, with onboard OPA363 buffer selectable via jumper J11. Power is supplied entirely over USB via the MMB3, which generates ±5V and 3.3V rails for the ADS7924EVM, with jumpers J7 enabling current measurement at VDD and BVDD supply points.

Key Specifications

Availability

ADS7924EVM-PDK is available at Aetrix Electronics and suitable for industrial sensor interface validation, embedded ADC firmware development, and precision analog front-end prototyping requiring stable component supply and full toolchain support.

Supply support for ADS7924EVM-PDK 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

Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies, with leadership in precision data converters and evaluation platforms.

The ADS7924EVM-PDK belongs to TI's Modular EVM System family, designed specifically to accelerate evaluation and integration of precision ADCs like the ADS7924 into industrial, test & measurement, and sensor signal chain applications.

FAQ

What is the ADS7924EVM-PDK used for?

The ADS7924EVM-PDK is a complete evaluation kit for the ADS7924 12-bit I²C ADC. It includes hardware (ADS7924EVM board + MMB3 motherboard), firmware, and ADCPro™ software to configure registers, acquire channel data, monitor interrupts, set alarms, and perform real-time analysis including FFT and histogram. ADS7924EVM-PDK enables full functional validation without custom host firmware.

Does the ADS7924EVM-PDK require external power supplies?

No - the ADS7924EVM-PDK draws all required power from the host PC's USB port via the MMB3 motherboard. The MMB3 internally generates +5VA, –5VA, +3.3VD, and +1.8VD rails needed by the ADS7924EVM. No external bench supplies or wall adapters are necessary for standard operation.

Which operating systems support the ADS7924EVM-PDK software?

The official ADCPro™ software bundled with the ADS7924EVM-PDK supports only Microsoft Windows XP. Windows Vista and Windows 7 are explicitly not supported per the SBAU173 User's Guide. No Linux, macOS, or modern Windows (10/11) drivers or software versions were released by Texas Instruments for ADS7924EVM-PDK.

How is the I²C address configured on the ADS7924EVM-PDK?

The I²C address of the ADS7924 on the ADS7924EVM-PDK is set via jumper J5: shorting J5.1–J5.2 selects 7-bit address 0x18; leaving it open selects 0x19. This setting is reflected in the ADC tab of the ADCPro software, and the Ack indicator (green/red LED) confirms communication success or failure with the ADS7924 device.

Can the ADS7924EVM-PDK evaluate all ADS7924 features?

The ADS7924EVM-PDK supports most ADS7924 features - including all five auto-trigger modes, interrupt configuration, per-channel alarms, offset monitoring, and external buffer control - but does not support manual trigger modes. The User's Guide states the ADS7924EVM-PDK "allows evaluation of the ADS7924 in some modes of operation, but not all."