LTC1665/LTC1660

1

166560fa

BLOCK DIAGRAM

FEATURES

DESCRIPTION

Micropower Octal

8-Bit and 10-Bit DACs

accurate, serially addressable digital-to-analog convert-

ers (DACs) in tiny 16-pin narrow SSOP packages. Each

buffered DAC draws just 56μA total supply current, yet

is capable of supplying DC output currents in excess

of 5mA and reliably driving capacitive loads to 1000pF.

Sleep mode further reduces total supply current to 1μA.

LinearTechnology’sproprietary,inherentlymonotonicvolt-

age interpolation architecture provides excellent linearity

whileallowingforanexceptionallysmallexternalformfactor.

Ultralow supply current, power-saving Sleep mode and

extremely compact size make the LTC1665 and LTC1660

ideal for battery-powered applications, while their ease

of use, high performance and wide supply range make

them excellent choices as general purpose converters.

LTC1665 Differential Nonlinearity (DNL)

LTC1660 Differential Nonlinearity (DNL)

APPLICATIONS

1μA Sleep Mode for Extended Battery Life

Eliminates External Buffer

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

2

15

1

GND

REF

CS/LD

SCK

CLR

166560 BD

16

DAC A

DAC H

3

14

DAC B

DAC G

4

13

DAC C

DAC F

5

7

6

8

10

11

9

12

DAC D

DAC E

ADDRESS

DECODER

CONTROL

LOGIC

SHIFT REGISTER

CODE

0

64

128

192

255

166560 G09

0.5

0.4

0.3

0.2

0.1

0

–0.1

–0.2

–0.3

–0.4

–0.5

CODE

0

256

512

768

1023

166560 G13

1

0.8

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1