2-channel, simultaneous-sampling successive approximation (SAR) analog-to-digital converters (ADCs) with two independently controlled internal references for simplified system-level design. The 16-bit ADS8363, 14-bit ADS7263 and 12-bit ADS7223 are pin-for-pin compatible and support speeds up to 1 MSps for industrial and energy applications such as motor control, power quality measurement, protection relays, power automation, solar inverters and wind generators.
The devices integrate two 2,5 V, independently controlled references, enabling separate ADC gain calibration and the implementation of a programmable gain amplifier. This feature also reduces the need for external signal conditioning when different gain levels are required for each ADC. A memory reduces processor accesses, which can reduce system power consumption or increase performance by freeing MIPS for other tasks. The ICs enable component count reduction by supporting up to eight pseudo-differential or four fully-differential input channels grouped into two pairs.
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