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LTC1658

14-Bit Rail-to-Rail

Micropower DAC in MSOP

FEATURES

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14-Bit Resolution

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8-Lead MSOP Package

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Buffered True Rail-to-Rail Voltage Output

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3V or 5V Single Supply Operation

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Power-On Reset

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3-Wire Cascadable Serial Interface is Compatible

with SPI and MICROWIRE

TM

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Maximum DNL Error: 1LSB

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Low Cost

The LTC

put, 14-bit digital-to-analog converter (DAC) in an 8-lead

MSOP package. It includes an output buffer amplifier and

an easy-to-use 3-wire cascadable serial interface.

operates from a single 2.7V to 5.5V supply. The typical

power supply current is 270

µA.

The low power supply current makes the LTC1658 ideal

for battery-powered applications. The space saving MSOP

provides the smallest 14-bit DAC system available.

Functional Block Diagram: 14-Bit Rail-to-Rail DAC

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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.

–

+

14-BIT

DAC

2.7V TO 5.5V

GND

POWER-ON

RESET

TO

OTHER

DACS

16-BIT

SHIFT

REG

AND

DAC

LATCH

µP

14

REF

2

86

4

5

1658 TA01

CLK

1

CS/LD

3

7

RAIL-TO-RAIL

VOLTAGE

OUTPUT

MICROWIRE is a trademark of National Semiconductor Corporation.

CODE

0

– 1.0

– 0.2

– 0.4

– 0.6

– 0.8

0

0.2

0.4

0.6

0.8

1.0

4096

8192

1658 TA02

12288

16383

Differential Nonlinearity

vs Input Code