Datasheet 搜索 > 仪表放大器 > ADI（亚德诺） > AD8421ARZ 数据手册 > AD8421ARZ 开发手册 1/8 页
器件3D模型￥ 28.704
AD8421ARZ 开发手册 - ADI（亚德诺）
制造商:
ADI（亚德诺）
分类:
仪表放大器
封装:
SOIC-8
描述:
Analog Devices### 仪器放大器，Analog DevicesAnalog Devices 的一系列仪表放大器。 此系列的产品还包括多种评估和开发板。
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
原理图在P1
应用领域在P1
导航目录
AD8421ARZ数据手册
Page:
of 8 Go
若手册格式错乱，请下载阅览PDF原文件
AN-1264
APPLICATION NOTE
One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Precision Signal Conditioning for High Resolution Industrial Applications
by Gustavo Castro and Kristina Fortunado
Rev. 0 | Page 1 of 8
INTRODUCTION
Industrial measurement and control systems often need to
interface to sensors while operating in noisy environments.
Because sensors typically generate very small electrical signals,
extracting their output from the noise can be challenging.
Applying signal conditioning techniques, such as amplification
and filtering, can aid in the extraction of the signal because
these techniques increase the sensitivity of the system. The
signal can then be scaled and shifted to take full advantage of
high performance ADCs.
This application note introduces a general-purpose precision
signal conditioning front end that can close the gap between
sensors and high resolution ADCs. The circuit is analyzed to
find its noise contribution, ambient noise rejection, and ability
to perform highly sensitive measurements.
Figure 1. Precision Signal Conditioning Circuit Schematic
V
IN+
V
IN–
4.7kΩ
20kΩ
20kΩ
10MΩ
AD8421
V
OUT–
V
OUT+
0.068µF
0.1µF
100pF
1nF
11795-001
IN-AMP AS DIFFERENTIAL FRONT END
FILTER
ADC DRIVER
4.7kΩ
10MΩ
R
G
+15V
–15V
REF
0.1µF
100pF
0.1µF
+15V
–15V
AD8510
33kΩ
0.01µF
+5V
AD8475
0.1µF
10kΩ
10kΩ
ADC_REF
1.25kΩ 1.25kΩ
1.25kΩ 1.25kΩ
1kΩ
1kΩ
0.1µF
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
