ADS8634SRGER

The ADS8634SRGER is a 12-bit analog-to-digital converter (ADC) from Texas Instruments, part of the ADS8634 family. It operates at a maximum sampling rate of 1 MSPS and features four single-ended input channels with a multiplexer. The device uses a successive approximation register (SAR) architecture and supports both external and internal voltage references. Software-selectable input ranges include ±10V, ±5V, ±2.5V, 0V to 10V, and 0V to 5V, with the ability to handle up to ±12V with an external reference. Key performance specifications include a typical signal-to-noise ratio (SNR) of 71.8 dB and an integral non-linearity (INL) of ±0.9 LSB. The ADC consumes 14.45 mW at 1 MSPS and 5.85 mW at 0.1 MSPS. It operates over a wide temperature range of -40°C to +125°C. The device is housed in a 24-VQFN (4x4 mm) package with an exposed pad for surface mount assembly. The SPI-compatible serial interface simplifies integration with microcontrollers and digital signal processors. The ADS8634SRGER is suitable for industrial control, data acquisition systems, and other applications requiring high-precision analog-to-digital conversion with flexible input ranges.