Description

WM0831 and WM0832 are 8-bit analogue to digital converters (ADC) with serial I/O interfaces, providing a choice of input configurations in 8-pin SO or DIP packages. WM0831 has a differential input, also configurable as a single ended input. A-D conversion results are serially output on Data Out (DO) under the control of clock and chip select inputs. The device has a separate voltage reference input.

Features

• Functionally Equivalent to National Semiconductor ADC0831 and ADC0832

• WM0831: Differential or single ended input

• WM0832: Two single ended inputs or a single differential input

• Ratiometric reference input (fixed for WM0832)

• Serial I/O interface

• Input range 0 to Vcc with Vcc Reference

• 8 pin package, SO or DIP

• 5V and 3.3V variants

• Total Unadjusted Error: ± 1 LSB

• 8-bit resolution

• 32 µs conversion time at fclock = 250 kHz

Applications

• Embedding with remote sensors

• Equipment health monitoring

• Automotive

• Industrial control