TLV0834C, TLV0834I, TLV0838C, TLV0838I
3-VOLT 8-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS147B – SEPTEMBER 1996 – REVISED OCTOBER 2000
8-Bit Resolution
2.7-V to 3.6-V V
Remote Operation With Serial Data Link
Inputs and Outputs Are Compatible With
TTL and MOS
CC
Easy Microprocessor Interface or
Stand-Alone Operation
Conversion Time of 32 µs at
f
= 250 kHz
(CLK)
Operates Ratiometrically or With V
Reference
CC
Functionally Equivalent to the ADC0834
and ADC0838 at 3-V Supply Without the
Internal Zener Regulator Network
4- or 8-Channel Multiplexer Options With
Address Logic
Total Unadjusted Error . . . ±1 LSB
Input Range 0 V to V
With V
Reference
CC
CC
description
Thesedevicesare8-bitsuccessive-approximationanalog-to-digitalconverters, eachwithaninput-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.
The TLV0834 (4-channel) and TLV0838 (8-channel) multiplexer is software-configured for single-ended or
differential inputs as well as pseudodifferential 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.
TLV0834 . . . D OR N PACKAGE
(TOP VIEW)
TLV0834 . . . PW PACKAGE
(TOP VIEW)
TLV0838 . . . PW, DW, OR N PACKAGE
(TOP VIEW)
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
V
CC
NC
CS
DI
CLK
SARS
DO
SE
REF
ANLG GND
NC
CS
V
CC
DI
NC
CS
CH0
CH1
CH2
V
DI
CLK
SARS
DO
1
2
3
4
5
6
7
8
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
14
13
12
11
10
9
CC
CH0
CLK
SARS
DO
CH1
CH2
CH3
REF
ANLG GND
CH3
REF
DGTL GND
DGTL GND
NC
10 ANLG GND
NC
8
9
NC – No internal connection
DGTL GND
AVAILABLE OPTIONS
PACKAGE
SMALL
OUTLINE
(D)
SMALL
OUTLINE
(DW)
T
A
PLASTIC DIP
(N)
TSSOP
(PW)
0°C to 70°C
TLV0834CD
TLV0834ID
TLV0838CDW TLV0834CN TLV0838CN TLV0834CPW TLV0838CPW
TLV0838IDW TLV0834IN TLV0838IN TLV0834IPW TLV0838IPW
–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 2000, 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
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