TLV0831C, TLV0831I TLV0832C, TLV0832I 3ĆVOLT 8ĆBIT ANALOGĆTOĆDIGITAL CONVERTERS WITH SERIAL CONTROL
SLAS148 − SEPTEMBER ...
TLV0831C, TLV0831I TLV0832C, TLV0832I 3ĆVOLT 8ĆBIT ANALOGĆTOĆDIGITAL CONVERTERS WITH SERIAL CONTROL
SLAS148 − SEPTEMBER 1996
D 8-Bit Resolution D 2.7 V to 3.6 V VCC D Easy Microprocessor Interface or
Standalone Operation
D Operates Ratiometrically or With VCC
Reference
D Single Channel or Multiplexed Twin
Channels With Single-Ended or Differential Input Options
D Input Range 0 V to VCC With VCC Reference D Inputs and Outputs Are Compatible With
TTL and MOS
D Conversion Time of 32 µs at
f(CLK) = 250 kHz
D Designed to Be Functionally Equivalent to
the National Semiconductor ADC0831 and ADC0832 at 3 V Supply
D Total Unadjusted Error . . . ± 1 LSB
TLV0831 . . . D OR P PACKAGE (TOP VIEW)
CS 1 IN+ 2 IN− 3 GND 4
8 VCC 7 CLK 6 DO 5 REF
TLV0832 . . . 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 TLV0831 has single input channels; the TLV0832 has multiplexed twin input channels. The serial output is configured to interface with standard shift registers or microprocessors.
The TLV0832 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 TLV0831 and TLV0832...