ADR420 datasheet, PDF - EEWORLD Datasheet

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ADR420: Description1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.048 V, PDSO8; Categorysemiconductor Analog mixed-signal IC; File Size685KB，24 Pages; ManufacturerADI; Websitehttps://www.analog.com

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ADR420 Overview

1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.048 V, PDSO8

ADR420 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	8
Maximum output voltage	2.05 V
Minimum output voltage	2.04 V
Maximum operating temperature	125 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	15 V
Minimum supply/operating voltage	5 V
Processing package description	MS-012AA, SOIC-8
state	DISCONTINUED
packaging shape	RECTANGULAR
Package Size	SMALL OUTLINE
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	1.27 mm
terminal coating	TIN LEAD
Terminal location	DUAL
Packaging Materials	PLASTIC/EPOXY
Temperature level	AUTOMOTIVE
Adjustable output	Yes
Number of outputs	1
Rated output voltage	2.05 V
Analog IC other types	THREE TERM VOLTAGE REFERENCE
Maximum voltage temperature coefficient	10 ppm/Cel

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高精度、

½噪声、

2.048 V/2.500 V/

3.00 V/5.00 V XFET®基准电压源

ADR420/ADR421/ADR423/ADR425

特性

½噪声(0.1

Hz至10 Hz)

ADR420：1.75 V峰峰值

ADR421：1.75 V峰峰值

ADR423：2.0 V峰峰值

ADR425：3.4 V峰峰值

½温度系数：3

ppm/°C

长期稳定性：50

ppm/1000小时

负½½调整率：70

ppm/mA

电压调整率：35

ppm/V

½迟滞：40

ppm(典型值)

½工½电压范围

ADR420：4 V至18 V

ADR421：4.5 V至18 V

ADR423：5 V至18 V

ADR425：7 V至18 V

静态电流：0.5

mA(最大值）

高输出电流：10

½温度范围：−40°C至+125°C

IN 2

NIC

引脚配½

ADR420/

ADR421/

ADR423/

ADR425

NIC

OUT

TOP VIEW

GND

(Not to Scale)

TRIM

NIC = NO INTERNAL CONNECTION

TP = TEST PIN (DO NOT CONNECT)

图

1. 8引脚SOIC或8引脚MSOP

概述

ADR42x系列为高精度、第二代外加离子注入场效应管

(XFET)基准电压源，具有½噪声、高精度和出色的长期稳

定特性，采用SOIC和MSOP封装。

利用温度漂移曲线校正专利技术和XFET技术，可以½电

压随温度变化的非线性度降至最小。XFET架构½够为带

隙基准电压源提供出色的精度和热滞性½。与嵌入式½纳

二极管基准电压源相比，还具有更½的功耗和更小的电源

裕量。

ADR42x具有出色的噪声性½、稳定性和精度，非常适合

光纤½络和医疗设备等精密½换应用。此外还可利用其调

整引脚，在±0.5%范围内调整输出电压，其它性½则不受

½响。ADR42x系列基准电压源分为两种电气等级，额定

温度范围为−40°C至+125°C扩展工业温度范围，提供8引脚

SOIC或8引脚MSOP封装(后者比前者小30%)。

应用

精密数据采集系统

高分辨率½换器

电池供电仪器仪表

便携式医疗仪器

工业过程控制系统

精密仪器

光纤½络控制电路

ADR42x产品

表1.

型号

ADR420

ADR421

ADR423

ADR425

输出电压V

OUT

(V)

2.048

2.50

3.00

5.00

初始精度

1, 3

0.05, 0.15

1, 3

0.04, 0.12

1.5, 4

0.04, 0.13

2, 6

0.04, 0.12

温度系数(ppm/°C)

3, 10

Rev. H

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Speci cations subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

ADI中文版数据手册是英文版数据手册的译文，敬请谅解翻译中可½存在的语言组织或翻译错误，ADI不对翻译中存在的差异或由此产生的错误负责。如需确认任½词语的准确性，请参考ADI提供

的最新英文版数据手册。

02432-001

ADR420/ADR421/ADR423/ADR425

目½

特性.....................................................................................................1

应用.....................................................................................................1

引脚配½

............................................................................................1

概述.....................................................................................................1

ADR42x产品 .....................................................................................1

修订历史

............................................................................................2

技术规格

............................................................................................3

ADR420电气规格 .......................................................................3

ADR421电气规格 .......................................................................4

ADR423电气规格 .......................................................................5

ADR425电气规格 .......................................................................6

绝对最大额定值...............................................................................7

热阻

...............................................................................................7

ESD警告........................................................................................7

引脚配½和功½描述

......................................................................8

典型工½特性

...................................................................................9

术语...................................................................................................15

工½原理.....................................................................................16

基准电压源基本连接...............................................................16

噪声性½.....................................................................................16

开启时间.....................................................................................16

应用...................................................................................................17

输出调整.....................................................................................17

光纤½络控制电路中½换器的基准电压源

.......................17

无精密电阻的负精密基准电压源.........................................17

高电压悬空电流源

...................................................................18

开尔文连接

................................................................................18

双极性基准电压源

...................................................................18

可编程电流源

............................................................................19

可编程DAC基准电压

..............................................................19

数据½换器的精密基准电压源

.............................................20

精密升压输出调节器...............................................................20

外½尺寸

..........................................................................................21

订购指南.....................................................................................22

修订历史

2007年6月—修订版G至修订版H

更改表2

..............................................................................................3

2003年1月—修订版B至修订版C

将Mini_SOIC更改为MSOP..................................................... 通用

更改订购指南

...................................................................................4

更正TPC

21和24中的Y½标签 ......................................................9

改进图13

..........................................................................................15

更新外½尺寸

.................................................................................16

2002年3月—修订版A至修订版B

更改表3

..............................................................................................4

更改表4

..............................................................................................5

更改表5

..............................................................................................6

更新外½尺寸

.................................................................................21

更改订购指南

.................................................................................22

2005年6月—修订版F至修订版G

更改表1

..............................................................................................1

更改订购指南

.................................................................................22

2005年2月—修订版E至修订版F

编辑订购指南

...................................................................................4

删除“精密稳压器”部分.................................................................15

添加“精密升压输出调节器”部分

...............................................15

添加图13

..........................................................................................15

2001年10月—修订版0至修订版A

更新格式

.....................................................................................

通用

更新外½尺寸

.................................................................................21

更改订购指南

.................................................................................22

2004年7月—修订版D至修订版E

在ADR420/ADR421之外添加ADR423和ADR425.............. 通用

更改订购指南

...................................................................................5

2004年3月—修订版C至修订版D

2001年5月—版本0：初始版

更改表I...............................................................................................1

更改订购指南

...................................................................................4

器件功耗考虑

.................................................................................16

Rev. H | Page 2 of 24

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