TLV0834C, TLV0834I, TLV0838C, TLV0838I

3-VOLT 8-BIT ANALOG-TO-DIGITAL CONVERTERS

WITH SERIAL CONTROL

SLAS147B – SEPTEMBER 1996 – REVISED OCTOBER 2000

1

POST OFFICE BOX 655303

Stand-Alone Operation

Reference

Address Logic

TTL and MOS

and ADC0838 at 3-V Supply Without the

Internal Zener Regulator Network

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.

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.

1

2

3

4

5

6

7

14

13

12

11

10

9

8

NC

CS

CH0

CH1

CH2

CH3

DGTL GND

DI

CLK

SARS

DO

REF

ANLG GND

TLV0834 ...D OR N PACKAGE

(TOP VIEW)

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

NC

CS

CH0

CH1

CH2

CH3

DGTL GND

NC

DI

CLK

SARS

DO

REF

ANLG GND

NC

NC – No internal connection

TLV0834 . . . PW PACKAGE

(TOP VIEW)

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

CH0

CH1

CH2

CH3

CH4

CH5

CH6

CH7

COM

DGTL GND

NC

CS

DI

CLK

SARS

DO

SE

REF

ANLG GND

TLV0838 ...PW, DW, OR N PACKAGE

(TOP VIEW)

AVAILABLE OPTIONS

PACKAGE

TA

SMALL

OUTLINE

(D)

SMALL

OUTLINE

(DW)

PLASTIC DIP

(N)

TSSOP

(PW)

0

°C to 70°C

TLV0834CD

TLV0838CDW

TLV0834CN

TLV0838CN

TLV0834CPW

TLV0838CPW

–40

°C to 85°C

TLV0834ID

TLV0838IDW

TLV0834IN

TLV0838IN

TLV0834IPW

TLV0838IPW

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

© 2000, Texas Instruments Incorporated