TLC0832C

TLC0831C, TLC0831I TLC0832C, TLC0832I 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL SLAS107B – JANUARY 1995 – REVISED APRIL 1996 D 8-Bit Resolution D Easy Microprocessor Interface or Standalone 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 fclock = 250 kHz D Designed to Be Interchangeable With National Semiconductor ADC0831 and ADC0832 D Total Unadjusted Error . . . ± 1 LSB TLC0831 . . . D OR P PACKAGE (TOP VIEW) CS 1 IN+ 2 IN– 3 GND 4 8 VCC 7 CLK 6 DO 5 REF TLC0832 . . . D OR P PACKAGE (TOP VIEW) CS 1 CH0 2 CH1 3 GND 4 8 VCC /REF 7 CLK 6 DO 5 DI description These devices are 8-bit successive-approximation analog-to-digital converters. The TLC0831 has single input channels; the TLC0832 has multiplexed twin input channels. The serial output is configured to interface with standard shift registers or microprocessors. The TLC0832 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 input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution. The operation of the TLC0831 and TLC0832 devices is very similar to th...