TLV0834C, TLV0834I, TLV0838C, TLV0838I
3-VOLT 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL
SLAS147 – SEPTEMBER 1996
TLV0834 . . . D OR N PACKAGE
8-Bit Resolution
2.7 V to 3.6 V V
(TOP VIEW)
CC
Easy Microprocessor Interface or
Standalone Operation
NC
CS
CH0
CH1
CH2
V
DI
CLK
SARS
DO
1
2
3
4
5
6
7
14
13
12
11
10
9
CC
Operates Ratiometrically or With V
Reference
CC
4- or 8-Channel Multiplexer Options With
Address Logic
CH3
REF
ANLG GND
DGTL GND
8
Input Range 0 V to V
With V
Reference
CC
CC
Remote Operation With Serial Data Link
TLV0838 . . . DW OR N PACKAGE
(TOP VIEW)
Inputs and Outputs Are Compatible With
TTL and MOS
Conversion Time of 32 µs at
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
V
CC
NC
CS
DI
CLK
SARS
DO
SE
REF
ANLG GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
f
= 250 kHz
(CLK)
Functionally Equivalent to the ADC0834
and ADC0838 at 3-V Supply Without the
Internal Zener Regulator Network
Total Unadjusted Error . . . ±1 LSB
description
These devices are 8-bit successive-approximation
analog-to-digital converters, each with an
input-configurable multichannel multiplexer and
serial input/output. The serial input/output is
configured to interface with standard shift registers
or microprocessors. Detailed information on
interfacing with most popular microprocessors is
readily available from the factory.
DGTL GND
The TLV0834 (4-channel) and TLV0838 (8-channel) multiplexer is software configured for single-ended or
differential inputs as well as pseudo-differential input assignments. 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 of any smaller analog voltage span to the full 8 bits of resolution.
The TLV0834C and TLV0838C are characterized for operation from 0°C to 70°C. The TLV0834I and TLV0838I
are characterized for operation from –40°C to 85°C.
AVAILABLE OPTIONS
PACKAGE
SMALL
OUTLINE
(D)
SMALL
OUTLINE
(DW)
T
A
PLASTIC DIP
(N)
0°C to 70°C
TLV0834CD
TLV0834ID
TLV0838CDW
TLV0838IDW
TLV0834CN
TLV0834IN
TLV0838CN
TLV0838IN
–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