Datasheet > LTC1665

LTC1665

更新时间： 2023-12-20 18:45:10

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
18页	228K
描述
微功耗八通道8位DAC

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数据手册

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LTC1665 数据手册

LTC1665/LTC1660

Micropower Octal

8-Bit and 10-Bit DACs

DESCRIPTION

The 8-bit LTC^®1665 and 10-bit LTC1660 integrate eight

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.

FEATURES

Tiny: 8 DACs in the Board Space of an SO-8

Micropower: 56μA per DAC Plus

1μA Sleep Mode for Extended Battery Life

Pin Compatible 8-Bit LTC1665 and 10-Bit LTC1660

Wide 2.7V to 5.5V Supply Range

Rail-to-Rail Voltage Outputs Drive 1000pF

Reference Range Includes Supply for Ratiometric

0V-to-V Output

LinearTechnology’sproprietary,inherentlymonotonicvolt-

age interpolation architecture provides excellent linearity

whileallowingforanexceptionallysmallexternalformfactor.

Reference Input Impedance is Constant—

Eliminates External Buffer

APPLICATIONS

Ultralow supply current, power-saving Sleep mode and

extremelycompactsizemaketheLTC1665andLTC1660

ideal for battery-powered applications, while their ease

of use, high performance and wide supply range make

them excellent choices as general purpose converters.

Mobile Communications

Remote Industrial Devices

Automatic Calibration for Manufacturing

Portable Battery-Powered Instruments

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.

Trim/Adjust Applications

LTC1665 Differential Nonlinearity (DNL)

BLOCK DIAGRAM

0.5

= 5V

REF

0.4

0.3

= 4.096V

GND

0.2

DAC A

DAC B

DAC C

DAC D

DAC H

DAC G

DAC F

DAC E

0.1

OUT A

OUT H

–0.1

–0.2

–0.3

–0.4

–0.5

OUT G

OUT F

OUT E

OUT B

OUT C

128

192

255

CODE

166560 G09

LTC1660 Differential Nonlinearity (DNL)

= 5V

REF

0.8

0.6

= 4.096V

OUT D

0.4

REF

CLR

0.2

CONTROL

LOGIC

ADDRESS

DECODER

CS/LD

SCK

–0.2

–0.4

–0.6

–0.8

–1

OUT

SHIFT REGISTER

166560 BD

256

512

768

1023

CODE

166560 G13

166560fa

12 3 4 5 6 7...18

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