LTC1590IS#PBF

更新时间： 2024-01-07 17:59:39

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
12页	292K
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LTC1590IS#PBF 数据手册

LTC1590

Dual Serial 12-Bit

Multiplying DAC

FEATURES

DESCRIPTION

The LTC^®1590 is a dual, serial input 12-bit multiplying

digital-to-analog converter (DAC). It includes two current

output multiplying CMOS DACs and an easy SPI compat-

ible serial interface with daisy-chain output. An asynchro-

nous CLR pin sets both DACs to zero scale.

■

DNL and INL Over Temperature: ±0.5LSB Max

■

Gain Error:

1LSB Max

■

Low Supply Current: 10

µA Max

4-Quadrant Multiplication

Power-On Reset

Asynchronous Clear Input

Daisy-Chain 3-Wire Serial Interface

^{16-Pin Narrow S}U^{O and PDIP Packages}

Excellent accuracy, stability and versatility are combined

with the smallest package available for a dual 12-bit

multiplying DAC.

Parts are available in 16-pin PDIP and narrow SO pack-

ages and are specified over the commercial and industrial

temperature ranges.

APPLICATIONS

■

Process Control and Industrial Automation

Software Controlled Gain Adjustment

Digitally Controlled Filter and Power Supplies

■

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

Automatic Test Equipment

Integral Nonlinearity Over

Temperature DAC A

TYPICAL APPLICATION

1.0

THREE

SUPERIMPOSED

CURVES

Dual 12-Bit 2-Quadrant Multiplying DAC

0.5

= –40°C,

25°C, 85°C

IN A

IN B

±10V

15V

Daisy-Chained Control Outputs

33pF

–0.5

–1.0

LT^®1112

REF B FB B

OUT1 B

OUT2 B

14 CLK

–

DAC B

OUT B

2560 3072

3584 4095

512 1024 1536 2048

µP

±10V

DIGITAL INPUT CODE

LTC1590 • TA02

24-BIT

SHIFT

REG

11 CS/LD

Integral Nonlinearity Over

Temperature DAC B

AND

LATCH

33pF

1.0

0.5

REF A FB A

OUT1 A

OUT2 A

–

THREE

SUPERIMPOSED

CURVES

±10V

DAC A

OUT A

= –40°C,

OUT

25°C, 85°C

LTC1590

CLR DGND

AGND

LTC1590 • TA01

–15V

–0.5

–1.0

2560 3072

512 1024 1536 2048

3584 4095

DIGITAL INPUT CODE

LTC1590 • TA03

12 3 4 5 6 7...12

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