The ADS1247EVM is an evaluation module designed by Texas Instruments to facilitate the testing and performance analysis of the ADS1247, a precision, 24-bit, analog-to-digital converter (ADC) with a built-in programmable gain amplifier (PGA). This evaluation module is an essential tool for engineers and designers who require high-accuracy measurements in applications such as temperature sensing, medical instrumentation, industrial process control, and instrumentation.

Key Features

• 24-bit delta-sigma ADC with PGA
• Onboard reference with 2ppm/°C (max) temperature drift
• 7.68kHz data rate for fast signal acquisition
• Low-noise performance for precise measurements
• Multiple input multiplexer (MUX) options including 2 differential or 4 single-ended inputs
• Flexible supply voltage range (2.7V to 5.25V)
• Simple SPI-compatible serial interface

Design and Functionality

The ADS1247EVM is meticulously designed to showcase the capabilities of the ADS1247 ADC. It includes a variety of features that make it easy to connect to a variety of signal sources. The onboard reference voltage and oscillator minimize the need for external components, simplifying the setup for quick testing.

The module connects to a PC via a USB interface, which is facilitated by an additional evaluation module, such as the MSPEXP430G2 LaunchPad. This connection allows users to easily control the ADS1247EVM using the provided software, enabling real-time data capture and analysis.

Software Support

Texas Instruments provides comprehensive software support for the ADS1247EVM, including an intuitive graphical user interface (GUI). This GUI allows users to configure the ADC settings, visualize the data conversion results, and analyze the performance of the ADS1247 chip in various conditions.

Applications

The ADS1247EVM is suitable for a wide range of high-precision measurement applications, including:

• Temperature measurements with RTDs, thermocouples, and thermistors
• Pressure and strain gauge sensing
• Weight and force measurement systems
• Battery monitoring and other energy applications
• Scientific and laboratory equipment

With its high level of precision and flexibility, the ADS1247EVM from Texas Instruments stands out as an invaluable tool for any project requiring meticulous data acquisition.