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LTC1451

LTC1452/LTC1453

12-Bit Rail-to-Rail

Micropower DACs in SO-8

Daisy-Chained Control Outputs

CLK

CS/LD

CLK

CS/LD

µP

0.1

µF

CONTROL

OUTPUT 1

CONTROL

OUTPUT 2

GND

GND

LTC1451

LTC1451

TO NEXT DAC

0.1

µF

5V

1451/2/3 TA01

Differential Nonlinearity

vs Input Code

CODE

0

0.5

0.0

–0.5

1024

2048 2560

1451/2/3 TA02

512

1536

3072 3584 4095

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Digital Calibration

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Industrial Process Control

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Automatic Test Equipment

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Cellular Telephones

, LTC and LT are registered trademarks of Linear Technology Corporation.

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12-Bit Resolution

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Buffered True Rail-to-Rail Voltage Output

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Built-In Reference: 2.048V (LTC1451)

1.220V (LTC1453)

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Multiplying Version (LTC1452)

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Power-On Reset

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SO-8 Package

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3-Wire Cascadable Serial Interface

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Maximum DNL Error: 0.5LSB

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Schmitt Trigger on Clock Input Allows Direct

Optocoupler Interface

The LTC

supply, rail-to-rail voltage output 12-bit digital-to-analog

converters (DACs) in an SO-8 package. They include an

output buffer amplifier and an easy-to-use 3-wire

cascadable serial interface.

The LTC1451 has an onboard reference of 2.048V and a

full-scale output of 4.095V. It operates from a single 4.5V

to 5.5V supply.

The LTC1452 is a multiplying DAC with a full-scale output

of twice the reference input voltage. It operates from a

single supply of 2.7V to 5.5V.

The LTC1453 has an onboard 1.22V reference and a full-

scale output of 2.5V. It operates from a single supply of

2.7V to 5.5V.

The low power supply current makes the LTC1451 family

ideal for battery-powered applications. The space saving

8-pin SO package and operation with no external compo-

nents provide the smallest 12-bit DAC system available.

FEATURES

DESCRIPTIO

APPLICATIO S

TYPICAL APPLICATIO