Datasheet > LTC1257IN8#TRPBF

LTC1257IN8#TRPBF

更新时间： 2024-11-20 05:59:55

品牌	Logo	应用领域
凌特 - Linear		光电二极管转换器
页数	文件大小	规格书
12页	201K
描述
IC 12-BIT DAC, Digital to Analog Converter

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LTC1257IN8#TRPBF 数据手册

LTC1257

Complete Single Supply

12-Bit Voltage Output

DAC in SO-8

FEATURES

DESCRIPTION

The LTC^®1257 is a complete single supply, 12-bit voltage

output D/A converter (DAC) in an SO-8 package. The

LTC1257 includes an output buffer amplifier, 2.048V volt-

age reference and an easy to use 3-wire cascadable serial

interface. An external reference can be used to override

the internal reference and extend the output voltage range

to 12V. The power supply current is a low 350µA when

operating from a 5V supply, making the LTC1257 ideal

for battery-powered applications. The space-saving 8-pin

SO package and operation with no external components

provide the smallest 12-bit D/A system available.

8-Pin SO Package

Buffered Voltage Output

Built-In 2.048V Reference

500µV/LSB with 2.048V Full Scale

1/2LSB Max DNL Error

Guaranteed 12-Bit Monotonic

3-Wire Cascadable Serial Interface

Wide Single Supply Range: V = 4.75V to 15.75V

Low Power: I Typ = 350µA with 5V Supply

APPLICATIONS

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.

Digital Offset/Gain Adjustment

Industrial Process Control

Automatic Test Equipment

TYPICAL APPLICATION

Daisy-Chained Control Outputs

Differential Nonlinearity

vs Input Code

0.5

0.0

0.1µF

CLK

LTC1257

µP

CONTROL OUTPUT 1

OUT

LOAD

GND

OUT

REF

0.1µF

CLK

LTC1257

CONTROL OUTPUT 2

OUT

LOAD

–0.5

GND

REF

OUT

512 1024 1536 2048 2560 3072 3584 4098

CODE

TO NEXT DAC

1257 TA05

1257 TA01

1257fc

12 3 4 5 6 7...12

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