5秒后页面跳转
捷配首页

Datasheet > 放大器电路 > 仪表放大器> AD622ARZ
AD622ARZ PDF预览

AD622ARZ

更新时间： 2024-02-20 09:01:25
品牌 Logo 应用领域
亚德诺 - ADI 仪表放大器放大器电路光电二极管PC
页数 文件大小 规格书
16页 394K
描述
Low Cost Instrumentation Amplifier

阅读下载

中文翻译

获取价格

AD622ARZ 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOP, SOP8,.25针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.31.00.01风险等级：0.81
放大器类型：INSTRUMENTATION AMPLIFIER最大平均偏置电流 (IIB)：0.005 µA
标称带宽 (3dB)：1 MHz最小共模抑制比：66 dB
最大输入失调电流 (IIO)：0.0025 µA最大输入失调电压：125 µV
JESD-30 代码：R-PDSO-G8JESD-609代码：e3
长度：4.9 mm湿度敏感等级：1
负供电电压上限：-18 V标称负供电电压 (Vsup)：-15 V
最大非线性：0.001%功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260电源：+-15 V
认证状态：Not Qualified座面最大高度：1.75 mm
标称压摆率：1.2 V/us子类别：Instrumentation Amplifier
最大压摆率：1.5 mA供电电压上限：18 V
标称供电电压 (Vsup)：15 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
最大电压增益：1000最小电压增益：1
标称电压增益：10宽度：3.9 mm
Base Number Matches：1

AD622ARZ 数据手册

 浏览型号AD622ARZ的Datasheet PDF文件第6页浏览型号AD622ARZ的Datasheet PDF文件第7页浏览型号AD622ARZ的Datasheet PDF文件第8页浏览型号AD622ARZ的Datasheet PDF文件第10页浏览型号AD622ARZ的Datasheet PDF文件第11页浏览型号AD622ARZ的Datasheet PDF文件第12页 
AD622  
THEORY OF OPERATION  
The value of RG also determines the transconductance of the  
The AD622 is a monolithic instrumentation amplifier based on  
a modification of the classic three op amp approach. Absolute  
value trimming allows the user to program gain accurately (to  
0.5% at G = 100) with only one resistor. Monolithic construction  
and laser wafer trimming allow the tight matching and tracking  
of circuit components, thus insuring AD622 performance.  
preamp stage. As RG is reduced for larger gains, the trans-  
conductance increases asymptotically to that of the input  
transistors. This has the following three important advantages:  
•
Open-loop gain is boosted for increasing programmed  
gain, thus reducing gain-related errors.  
•
The gain-bandwidth product (determined by C1, C2, and  
the preamp transconductance) increases with programmed  
gain, thus optimizing frequency response.  
The input voltage noise is reduced to a value of 12 nV/√Hz,  
determined mainly by the collector current and base  
resistance of the input devices.  
Input Transistor Q1 and Input Transistor Q2 provide a single  
differential-pair bipolar input for high precision (see Figure 16).  
Feedback through the Q1-A1-R1 loop and the Q2-A2-R2 loop  
maintains constant collector current of the Q1 and Q2 input  
devices, thereby impressing the input voltage across External  
Gain-Setting Resistor RG. This creates a differential gain from the  
inputs to the A1 and A2 outputs given by G = (R1 + R2)/RG + 1.  
Unity-Gain Subtracter A3 removes any common-mode signal,  
yielding a single-ended output referred to the REF pin potential.  
•
The internal gain resistors, R1 and R2, are trimmed to an  
absolute value of 25.25 kΩ, allowing the gain to be programmed  
accurately with a single external resistor.  
MAKE vs. BUY: A TYPICAL APPLICATION ERROR  
BUDGET  
20µA  
C1  
V
20µA  
I2  
I1  
B
The AD622 offers cost and performance advantages over  
discrete two op amp instrumentation amplifier designs along  
with smaller size and fewer components. In a typical application  
shown in Figure 17, a gain of 10 is required to receive and  
amplify a 0 to 20 mA signal from the AD694 current transmitter.  
The current is converted to a voltage in a 50 Ω shunt. In  
applications where transmission is over long distances, line  
impedance can be significant so that differential voltage  
measurement is essential. Where there is no connection  
between the ground returns of transmitter and receiver, there  
must be a dc path from each input to ground, implemented in  
this case using two 1 kΩ resistors. The error budget detailed in  
Table 4 shows how to calculate the effect of various error  
sources on circuit accuracy.  
A1  
A2  
10kΩ  
C2  
10kΩ  
10kΩ  
A3  
OUTPUT  
REF  
10kΩ  
+IN  
R3  
R1  
R2  
400Ω  
–IN  
Q1  
Q2  
R4  
400Ω  
R
G
GAIN  
SENSE  
GAIN  
SENSE  
–V  
S
Figure 16. Simplified Schematic of the AD622  
+
R
L2  
1kΩ  
10Ω  
V
1/2  
LT1013  
IN  
1/2  
LT1013  
AD694  
0 TO 20mA  
TRANSMITTER  
0 TO 20mA  
50Ω  
1kΩ  
1kΩ  
R
G
5.62kΩ  
–
AD622  
1kΩ  
R
L2  
10Ω  
REF  
9kΩ*  
1kΩ*  
1kΩ*  
9kΩ*  
*0.1% RESISTOR MATCH, 50ppm/°C TRACKING  
HOMEBREW IN-AMP, G = 10  
0 TO 20mA CURRENT LOOP  
WITH 50Ω SHUNT IMPEDANCE  
AD622 MONOLITHIC INSTRUMENTATION  
AMPLIFIER, G = 9.986  
Figure 17. Make vs. Buy  
Rev. D | Page 9 of 16  
 
 
 
1...6789101112...16

中文翻译

下载PDF

AD622ARZ 替代型号

型号 品牌 替代类型 描述 数据表
AD620ARZ ADI

类似代替

 Low Cost Low Power Instrumentation Amplifier
AD627ARZ-R7 ADI

类似代替

 Micropower, Single- and Dual-Supply, Rail-to-Rail Instrumentation Amplifier
AD622AR-REEL ADI

完全替代

 Low Cost Instrumentation Amplifier

与AD622ARZ相关器件

型号 品牌 获取价格 描述 数据表
AD622ARZ-R7 ADI

获取价格

 		Low Cost Instrumentation Amplifier
AD622ARZ-REEL ADI

获取价格

 		INSTRUMENTATION AMPLIFIER, 125uV OFFSET-MAX, 1MHz BAND WIDTH, PDSO8, SOIC-8
AD622ARZ-RL ADI

获取价格

 		Low Cost Instrumentation Amplifier
AD622ARZ-RL7 ADI

获取价格

 		Low Cost Instrumentation Amplifier
AD623 ADI

获取价格

 		Single Supply, Rail-to-Rail, Low Cost Instrumentation Amplifier
AD6231 ADI

获取价格

 		10 MHz, 20 V/レs, G = 1, 10, 100, 1000 i CMOS㈢
AD62384AP TOSHIBA

获取价格

 		8CH LOW INPUT ACTIVE DARLINGTON SINK DRIVER
AD62386AP TOSHIBA

获取价格

 		8CH LOW INPUT ACTIVE DARLINGTON SINK DRIVER
AD623A ADI

获取价格

 		Single Supply, Rail-to-Rail, Low Cost Instrumentation Amplifier
AD623AN ADI

获取价格

 		Single Supply, Rail-to-Rail, Low Cost Instrumentation Amplifier

与AD622ARZ相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证