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AD620ACHIPS

更新时间: 2024-02-17 10:13:06
品牌 Logo 应用领域
亚德诺 - ADI 仪表放大器放大器电路
页数 文件大小 规格书
16页 562K
描述
Low Cost, Low Power Instrumentation Amplifier

AD620ACHIPS 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:DIP
包装说明:ROHS COMPLIANT, MS-021-AA, SOIC-8针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.31.00.01风险等级:0.66
Is Samacsys:N放大器类型:INSTRUMENTATION AMPLIFIER
最大平均偏置电流 (IIB):0.0015 µA标称带宽 (3dB):1 MHz
最小共模抑制比:86 dB最大输入失调电流 (IIO):0.00075 µA
最大输入失调电压:85 µVJESD-30 代码:R-PDSO-G8
JESD-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:0.004%
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:1.6 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:10000
最小电压增益:1标称电压增益:10
宽度:3.9 mmBase Number Matches:1

AD620ACHIPS 数据手册

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Low Cost, Low Power  
Instrumentation Amplifier  
a
AD620  
CONNECTION DIAGRAM  
FEATURES  
EASY TO USE  
Gain Set with One External Resistor  
(Gain Range 1 to 1000)  
8-Lead Plastic Mini-DIP (N), Cerdip (Q)  
and SOIC (R) Packages  
Wide Power Supply Range (؎2.3 V to ؎18 V)  
Higher Performance than Three Op Amp IA Designs  
Available in 8-Lead DIP and SOIC Packaging  
Low Power, 1.3 mA max Supply Current  
1
2
3
4
8
7
6
5
R
R
G
G
+V  
–IN  
+IN  
S
OUTPUT  
REF  
EXCELLENT DC PERFORMANCE (“B GRADE”)  
50 V max, Input Offset Voltage  
0.6 V/؇C max, Input Offset Drift  
–V  
S
AD620  
TOP VIEW  
1.0 nA max, Input Bias Current  
100 dB min Common-Mode Rejection Ratio (G = 10)  
1000. Furthermore, the AD620 features 8-lead SOIC and DIP  
packaging that is smaller than discrete designs, and offers lower  
power (only 1.3 mA max supply current), making it a good fit  
for battery powered, portable (or remote) applications.  
LOW NOISE  
9 nV/Hz, @ 1 kHz, Input Voltage Noise  
0.28 V p-p Noise (0.1 Hz to 10 Hz)  
The AD620, with its high accuracy of 40 ppm maximum  
nonlinearity, low offset voltage of 50 µV max and offset drift of  
0.6 µV/°C max, is ideal for use in precision data acquisition  
systems, such as weigh scales and transducer interfaces. Fur-  
thermore, the low noise, low input bias current, and low power  
of the AD620 make it well suited for medical applications such  
as ECG and noninvasive blood pressure monitors.  
EXCELLENT AC SPECIFICATIONS  
120 kHz Bandwidth (G = 100)  
15 s Settling Time to 0.01%  
APPLICATIONS  
Weigh Scales  
ECG and Medical Instrumentation  
Transducer Interface  
Data Acquisition Systems  
Industrial Process Controls  
Battery Powered and Portable Equipment  
The low input bias current of 1.0 nA max is made possible with  
the use of Superβeta processing in the input stage. The AD620  
works well as a preamplifier due to its low input voltage noise of  
9 nV/Hz at 1 kHz, 0.28 µV p-p in the 0.1 Hz to 10 Hz band,  
0.1 pA/Hz input current noise. Also, the AD620 is well suited  
for multiplexed applications with its settling time of 15 µs to  
0.01% and its cost is low enough to enable designs with one in-  
amp per channel.  
PRODUCT DESCRIPTION  
The AD620 is a low cost, high accuracy instrumentation ampli-  
fier that requires only one external resistor to set gains of 1 to  
30,000  
10,000  
25,000  
20,000  
15,000  
10,000  
5,000  
0
3 OP-AMP  
IN-AMP  
1,000  
(3 OP-07s)  
TYPICAL STANDARD  
BIPOLAR INPUT  
IN-AMP  
100  
G = 100  
AD620A  
10  
R
G
AD620 SUPERETA  
BIPOLAR INPUT  
1
IN-AMP  
0.1  
1k  
0
5
10  
15  
20  
10k  
100k  
1M  
10M  
100M  
SUPPLY CURRENT – mA  
SOURCE RESISTANCE – ⍀  
Figure 1. Three Op Amp IA Designs vs. AD620  
Figure 2. Total Voltage Noise vs. Source Resistance  
REV. E  
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  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  

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