TLC0831C, TLC0831I
TLC0832C, TLC0832I
8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL
SLAS107B – JANUARY 1995 – REVISED APRIL 1996
8-Bit Resolution
TLC0831 . . . D OR P PACKAGE
(TOP VIEW)
Easy Microprocessor Interface or
Standalone Operation
CS
IN+
V
CC
CLK
DO
1
2
3
4
8
7
6
5
Operates Ratiometrically or With 5-V
Reference
IN–
Single Channel or Multiplexed Twin
Channels With Single-Ended or Differential
Input Options
GND
REF
TLC0832 . . . D OR P PACKAGE
(TOP VIEW)
Input Range 0 to 5 V With Single 5-V Supply
Inputs and Outputs Are Compatible With
TTL and MOS
CS
CH0
CH1
GND
V
/REF
CC
1
2
3
4
8
7
6
5
Conversion Time of 32 µs at
CLK
DO
DI
f
= 250 kHz
clock
Designed to Be Interchangeable With
National Semiconductor ADC0831 and
ADC0832
Total Unadjusted Error . . . ± 1 LSB
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.
TheoperationoftheTLC0831andTLC0832devicesisverysimilartothemorecomplexTLC0834andTLC0838
devices. Ratiometric conversion can be attained by setting the REF input equal to the maximum analog input
signal value, which gives the highest possible conversion resolution. Typically, REF is set equal to V
internally on the TLC0832).
(done
CC
The TLC0831C and TLC0832C are characterized for operation from 0°C to 70°C. The TLC0831I and TLC0832I
are characterized for operation from –40°C to 85°C.
AVAILABLE OPTIONS
PACKAGE
T
A
SMALL OUTLINE
(D)
PLASTIC DIP
(P)
0°C to 70°C
TLC0831CD
TLC0831ID
TLC0832CD
TLC0832ID
TLC0831CP
TLC0831IP
TLC0832CP
TLC0832IP
–40°C to 85°C
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 1996, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265