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WM0832

Wolfson Microelectronics plc
Part Number WM0832
Manufacturer Wolfson Microelectronics plc
Description 8-Bit ADCs with Serial Interface and Differential or Dual Inputs
Published Apr 17, 2005
Detailed Description WM0831, WM0832 Production Data Sept 1996 Rev 2.1 8-Bit ADCs with Serial Interface and Differential or Dual Inputs Descr...
Datasheet PDF File WM0832 PDF File

WM0832
WM0832

Overview
WM0831, WM0832 Production Data Sept 1996 Rev 2.
1 8-Bit ADCs with Serial Interface and Differential or Dual Inputs 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.
WM0832's two input multiplexer is configurable via the Data In (DI) serial input, as two single ended inputs or a single differential input.
The voltage reference operates ratiometrically and is internally connected to the VCC pin.
Conversion is initiated by bringing and holding chip select low while providing a clock input.
With WM0831's fixed input configuration, the conversion result is output at DO on the clock's falling edges in MSB to LSB order.
With WM0832's configurable input multiplexer, data is input to DI on the rising edges of the clock to setup the Mux and initiate conversion.
Conversion results appear serially at DO on the falling edges of the clock, first in MSB to LSB order, and then repeated in LSB to MSB order.
WM0831/2 operate on 5V or 3.
3V supply voltages and are available in small outline and DIP packages for commercial (0 to 70oC) and industrial (-40 to 85oC) temperature ranges.
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 c...


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