Key features and benefits of the ADS8634 and ADS8638
Per-channel software-selectable input ranges support ±12 V, ±10 V, ±5 V, ±2.5 V, 0-5 V, and 0-10 V, providing a single-chip solution for a wide range of inputs, while enabling designers to easily interface to a variety of sensors with a single ADC.
1-MSPS sampling rate is a 4x improvement from the previous generation.
Digital interface supports 1.8-V to 5-V hosts without additional level-shifting circuitry.
Integrated reference and temperature sensor reduces system cost and complexity. The addition of dual-alarm threshold logic per channel and alarm output minimizes the number of host accesses required in monitoring applications.
Tools and support
TI offers a variety of tools and support to speed development with the ADS8634 and ADS8638, including an IBIS model, anti-aliasing filter tool for data converters, and an op amp-to-ADC circuit topography calculator. Engineers can also ask questions and help solve problems in the Precision Data Converter Forum in the TI E2E™ Community.
A performance development kit, including all circuitry, software and source code, is also available to evaluate the performance of both parts. The ADS8638EVM-PDK enables complete ADC performance evaluation via ADCPro™, a modular software system for evaluating ADCs without expensive logic analyzers and complex analysis routines.