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