10-bit SAR ADC with a single-supply range that simplifies rail planning
The MAX1243BCSA+ is a 10-bit successive-approximation-register (SAR) ADC from Analog Devices, sampling at 73k samples per second over a single-ended input through an SPI data interface. The 1:1 S/H-to-ADC ratio and external reference give the designer direct control over the input voltage span and the LSB size, matching the sensor's full-scale output without an external gain stage.
Package, temperature, and what the 73k SPS rating means for your signal chain
Housed in an 8-pin SOIC (0.154" wide, 3.90 mm body), the surface-mount footprint is a standard JEDEC outline — no special land pattern or via-in-pad required. At 73k samples per second, the conversion time is roughly 13.7 µs — enough headroom to digitise a 10 kHz analog signal with Nyquist margin while leaving SPI bus cycles for the host to read the result and service other tasks.