ADC0831B

ADC0831A, ADC0832A, ADC0831B, ADC0832B A/D PERIPHERALS WITH SERIAL CONTROL D 8-Bit Resolution D Easy Microprocessor interface or Stand-Alone Operation D Operates Ratiometrically or With 5-V Reference D Single Channel or Multiplexed Twin Channels With Single-Ended or Differential Input Options D Input Range 0 to 5 V With Single 5-V Supply D Inputs and Outputs Are Compatible With TTL and MOS D Conversion Time of 32 µs at CLK = 250 kHz D Designed to Be interchangeable With National Semiconductor ADC0831 and ADC0832 SLAS006 – AUGUST 1985 – REVISED JUNE 1986 ADC0831 . . . P PACKAGE (TOP VIEW) CS IN+ IN– GND 1 2 3 4 8 VCC 7 CLK 6 DO 5 REF ADC0832 . . . P PACKAGE (TOP VIEW) CS CH0 CH1 GND 1 2 3 4 8 VCC/REF 7 CLK 6 DO 5 DI DEVICE ADC0831 ADC0832 TOTAL UNADJUSTED ERROR A-SUFFIX B-SUFFIX ± 1 LSB ± 1/2 LSB ± 1 LSB ± 1/2 LSB description These devices are 8-bit successive-approximation analog-to-digital converters. The ADC0831A and ADC0831B have single input channels; the ADC0832A and ADC0832B have multiplexed twin input channels. The serial output is configured to interface with standard shift registers or microprocessors. Detailed information on interfacing to most popular microprocessors is readily available from the factory. The ADC0832 multiplexer is software configured for single-ended or differential inputs. The differential analog voltage input allows for common-mode rejection or offset of the analog zero input voltage value. In addition, the voltage reference i...