LTC1454LIS Datasheet

IC型號(hào)：
LTC1454LIS
PDF描述：
Dual 12-Bit Rail-to-Rail Micropower DACs
文件大小：
249.80KB
PDF頁數(shù)：
12頁
芯片廠家：
LINER

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LTC1454/LTC1454L

Dual 12-Bit Rail-to-Rail

Micropower DACs

FEATURES

DESCRIPTION

The LTC

廬

1454/LTC1454L are complete single supply,

dual rail-to-rail voltage output, 12-bit digital-to-analog

converters (DACs) in a 16-lead SO package. They include

an output buffer amplifier with variable gain (脳1 or

脳

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

The LTC1454 has an onboard reference of 2.048V and a

full-scale output of 4.095V in a

脳

2 gain configuration. It

operates from a single 4.5V to 5.5V supply.

The LTC1454L has an onboard 1.22V reference and a full-

scale output of 2.5V in a

脳

2 gain configuration. It operates

from a single 2.7V to 5.5V supply.

Low power supply current, excellent DNL and small size

allow these parts to be used in a host of applications where

size, DNL and single supply operation are important.

12-Bit Resolution

Buffered True Rail-to-Rail Voltage Output

5V Operation, I

: 700碌A(chǔ) Typ (LTC1454)

3V Operation, I

: 450碌A(chǔ) Typ (LTC1454L)

Built-In Reference: 2.048V (LTC1454)

1.220V (LTC1454L)

CLR Pin

Power-On Reset

16-Lead SO Package

3-Wire Cascadable Serial Interface

Maximum DNL Error: 0.5LSB

Low Cost

APPLICATIONS

Digital Calibration

Industrial Process Control

Automatic Test Equipment

Cellular Telephones

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

TYPICAL APPLICATION

Daisy-Chained

Dual 12-Bit Rail-to-Rail DAC

Functional Block Diagram:

Control Outputs

LTC1454: 5V

LTC1454L: 3V TO 5V

9, 15

LTC1454: 2.048V

10 LTC1454L: 1.22V

REFOUT

REFHI B 14

0.5

0.4

0.3

DNL ERROR (LSB)

4 D

碌P

3 CLK

5 CS/LD

6 D

OUT

12-BIT

DAC B

24-BIT

SHIFT

REG

AND

DAC

LATCH

OUT B

0.2

0.1

鈥?.1

鈥?.2

鈥?.3

鈥?.4

鈥?.5

512 1024 1536 2048 2560 3072 3584 4095

CODE

1454 G08

鈥?/div>

X1/X2 B 1

REFHI A

12-BIT

DAC A

OUT A

鈥?/div>

X1/X2 A

POWER-ON

RESET

CLR

REFLO

GND

1454 BD02

Differential Nonlinearity

vs Input Code

數(shù)據(jù)列表
LTC1454/L
標(biāo)準(zhǔn)包裝
50
類別
集成電路 (IC)
家庭
數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器
系列
-
設(shè)置時(shí)間
14µs
位數(shù)
12
數(shù)據(jù)接口
串行
轉(zhuǎn)換器數(shù)目
2
電壓電源
單電源
功率耗散（最大）
1.35mW
工作溫度
-40°C ~ 85°C
安裝類型
表面貼裝
封裝/外殼
16-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝
16-SOIC
包裝
管件
輸出數(shù)目和類型
2 電壓，單極
采樣率（每秒）
*

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LTC1454LIS Datasheet

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