8-BIT ANALOG-TO-DIGITAL CONVERTER
TLC0831C, TLC0831I
TLC0832C, TLC0832I 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL
SLAS107B – JANUARY 1995 – R...
Description
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...
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