ADS7950SBRGER

The ADS7950SBRGER is a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) from Texas Instruments. It features a maximum sampling rate of 1 MSPS and four single-ended input channels multiplexed into a sample-and-hold amplifier. The device uses an SPI serial interface for communication and requires an external voltage reference.

Key electrical specifications include a typical signal-to-noise ratio (SNR) of 71.7 dB, low power consumption of 11.5 mW at 1 MSPS, and wide analog supply voltage range from 2.7 V to 5.25 V. The digital I/O supply can operate from 1.7 V to 5.25 V, enabling compatibility with various logic levels. The input voltage range is 0 V to 5.25 V, and the device supports two software-selectable unipolar input ranges: 0 to VREF and 0 to 2 × VREF.

Designed for precision data acquisition, the ADS7950SBRGER offers zero-latency conversion, a 20 MHz serial interface, and automatic or manual channel selection. It includes two programmable alarm levels per channel and four individually configurable GPIOs (in the TSSOP package; one GPIO in the VQFN package). The device is rated for industrial temperature ranges from -40°C to 125°C.

The ADS7950SBRGER is packaged in a compact 24-pin VQFN with exposed pad (4 mm × 4 mm), suitable for space-constrained applications. It is part of the ADS79xx family of pin-compatible ADCs offering 8-, 10-, and 12-bit resolutions with various channel counts.