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AD8225AR

更新时间： 2024-02-20 20:35:17
品牌 Logo 应用领域
亚德诺 - ADI 仪表放大器
页数 文件大小 规格书
16页 276K
描述
Precision Gain of 5 Instrumentation Amplifier

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AD8225AR 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOP,针数：8
Reach Compliance Code：unknown风险等级：5.76
放大器类型：INSTRUMENTATION AMPLIFIER最大平均偏置电流 (IIB)：0.0012 µA
标称带宽 (3dB)：0.9 MHz最小共模抑制比：83 dB
最大输入失调电流 (IIO)：0.0005 µA最大输入失调电压：325 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)：-5 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封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
认证状态：COMMERCIAL座面最大高度：1.75 mm
子类别：Instrumentation Amplifier供电电压上限：18 V
标称供电电压 (Vsup)：5 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：MATTE TIN
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：40
标称电压增益：5宽度：3.9 mm
Base Number Matches：1

AD8225AR 数据手册

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Precision Gain of 5  
Instrumentation Amplifier  
AD8225  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
No External Components Required  
Highly Stable, Factory Trimmed Gain of 5  
Low Power, 1.2 mA Max Supply Current  
Wide Power Supply Range (ꢀ1.7 V to ꢀ18 V)  
Single- and Dual-Supply Operation  
Excellent Dynamic Performance  
High CMRR  
AD8225  
1
2
3
4
8
7
6
5
NC  
+V  
NC  
–IN  
+IN  
S
V
OUT  
–V  
S
REF  
NC = NO CONNECT  
86 dB Min @ DC  
80 dB Min to 10 kHz  
Wide Bandwidth  
900 kHz  
4 V to 36 V Single Supply  
High Slew Rate  
5 V/ꢁs Min  
Outstanding DC Precision  
Low Gain Drift  
5 ppm/ꢂC Max  
Low Input Offset Voltage  
150 ꢁV Max  
Low Offset Drift  
2 ꢁV/ꢂC Max  
140  
130  
120  
110  
100  
90  
AD8225  
HIGH PERFORMANCE IN AMP  
@ GAIN OF 5  
80  
70  
Low Input Bias Current  
1.2 nA Max  
60  
50  
40  
APPLICATIONS  
Patient Monitors  
30  
1
10  
100  
1k  
10k  
100k  
Current Transmitters  
Multiplexed Systems  
4 to 20 mA Converters  
Bridge Transducers  
Sensor Signal Conditioning  
FREQUENCY – Hz  
Figure 1. Typical CMRR vs. Frequency  
GENERAL DESCRIPTION  
CMRR performance of the AD8225 rejects noise from utility  
systems, motors, and repair equipment on factory floors, switch-  
ing power supplies, and medical equipment.  
The AD8225 is an instrumentation amplifier with a fixed gain  
of 5, which sets new standards of performance. The superior  
CMRR of the AD8225 enables rejection of high frequency  
common-mode voltage (80 dB Min @ 10 kHz). As a result,  
higher ambient levels of noise from utility lines, industrial  
equipment, and other radiating sources are rejected. Extended  
CMV range enables the AD8225 to extract low level differential  
signals in the presence of high common-mode dc voltage levels  
even at low supply voltages.  
Low input bias currents combined with a high slew rate of 5 V/µs  
make the AD8225 ideally suited for multiplexed applications.  
The AD8225 provides excellent dc precision, with maximum  
input offset voltage of 150 µV and drift of 2 µV/°C. Gain drift is  
5 ppm/°C or less.  
Operating on either single or dual supplies, the fixed gain of 5  
and wide input common-mode voltage range make the AD8225  
well suited for patient monitoring applications.  
Ambient electrical noise from utility lines is present at 60 Hz  
and harmonic frequencies. Power systems operating at 400 Hz  
create high noise environments in aircraft instrument clusters.  
Good CMRR performance over frequency is necessary if power  
system generated noise is to be rejected. The dc to 10 kHz  
The AD8225 is packaged in an 8-lead SOIC package and is  
specified over the standard industrial temperature range, –40°C  
to +85°C.  
REV. A  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. 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 companies.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© 2003 Analog Devices, Inc. All rights reserved.  
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