Texas Instruments ADS7863A Dual, 2MSPS, 12-Bit, 2+2 or 3+3 Channel, Simultaneous Sampling SAR ADC ADS7863ADBQ

The ADS7863A is a dual-channel, 12-bit, 2-MSPS analog-to-digital converter (ADC) that supports either 2+2 or 3+3 channel configurations for simultaneous sampling. It features four fully-differential or six pseudo-differential inputs, making it suitable for high-speed signal acquisition in noisy environments, with a common-mode rejection ratio of 72 dB at 100 kHz. The device operates with a supply voltage range of 2.7 V to 5.5 V and consumes 45 mW at 5 V. It includes a programmable and buffered internal 2.5-V reference and offers flexible power-down features. The ADS7863A is specified for an extended temperature range of -40¬8C to +125¬8C and is available in both SSOP-24 and QFN-24 packages. Key performance metrics include a signal-to-noise ratio (SNR) of 71 dB and total harmonic distortion (THD) of -81 dB, making it suitable for applications such as motor control and multi-axis positioning systems.