TLV0831C_14 Datasheet, PDF (1/21 Pages) Texas Instruments –
8-Bit Resolution 2.7 V to 3.6 V VCC Easy Microprocessor Interface or Standalone Operation

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 V_CC
D Easy Microprocessor Interface or
Standalone Operation
D Operates Ratiometrically or With V_CC
Reference
D Single Channel or Multiplexed Twin
Channels With Single-Ended or Differential
Input Options
D Input Range 0 V to V_CC With V_CC 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 V_CC
7 CLK
6 DO
5 REF
TLV0832 . . . D OR P PACKAGE
(TOP VIEW)
CS 1
CH0 2
CH1 3
GND 4
8 V_CC /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 devices is very similar to the more complex TLV0834 and TLV0838
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_CC (done
internally on the TLV0832).
The TLV0831C and TLV0832C are characterized for operation from 0°C to 70°C. The TLV0831I and TLV0832I
are characterized for operation from − 40°C to 85°C.
TA
0°C to 70°C
−40°C to 85°C
AVAILABLE OPTIONS
PACKAGE
SMALL OUTLINE
(D)
PLASTIC DIP
(P)
TLV0831CD
TLV0832CD
TLV0831CP
TLV0832CP
TLV0831ID
TLV0832ID
TLV0831IP
TLV0832IP
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.
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.
Copyright  1996, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
• POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
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