ADS8634SRGER 12-bit ADC 4-ch 1MSPS SPI prog input (±12V/0-10V) internal ref 2.5V-5V VQFN-24 for industrial

Features

• 12-Bit Resolution – Provides fine quantization for accurate analog measurements.

• 4 Single-Ended Input Channels – Flexible muxed inputs, with optional programmable gain.

• 1 MSPS Sampling Rate – Capable of capturing fast-changing signals in real-time control loops.

• SPI-Compatible Serial Interface – Easy connection to microcontrollers, DSPs, and FPGAs.

• Programmable Input Ranges – ±12V, ±5V, ±2.5V, 0-10V, 0-5V – no external dividers or level shifters needed.

• Internal 2.5V Reference – Simplifies design; external reference also supported (1V to 5V).

• Wide Analog Supply (2.5V to 5V) – Flexible powering; VQFN-24 package for compact layouts.

Applications

• IndustrialProcessControls(PLC)

• DataAcquisitionSystems

• High-Speed,Closed-LoopSystems

• DigitalPowerSupplies

Description

The ADS8634SRGER is a 12-bit, 4-channel successive approximation register (SAR) analog-to-digital converter from TI. It features a high-speed 1 MSPS sampling rate and an SPI-compatible serial interface. A key differentiator is its programmable analog input ranges, including bipolar (±12V, ±5V, ±2.5V) and unipolar (0-10V, 0-5V), which eliminate the need for external signal conditioning in many industrial applications. The device includes an internal 2.5V reference (with option for external reference) and operates from a single 2.5V to 5V analog supply, making it a highly integrated, space-saving solution. Housed in a compact 24-pin VQFN package, the ADS8634SRGER is ideal for precision data acquisition in harsh, noisy environments.

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