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AD8429ARZ

更新时间： 2024-02-20 22:51:35
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
页数 文件大小 规格书
20页 554K
描述
1 nV/√Hz Low Noise Instrumentation Amplifier ±4 V to ±18 V dual supply

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AD8429ARZ 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：SOIC-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.31.00.01风险等级：1.75
放大器类型：INSTRUMENTATION AMPLIFIER最大平均偏置电流 (IIB)：0.15 µA
标称带宽 (3dB)：15 MHz最小共模抑制比：90 dB
最大输入失调电流 (IIO)：0.03 µA最大输入失调电压：50 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
功能数量：1端子数量：8
最高工作温度：125 °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：22 V/us
子类别：Instrumentation Amplifier最大压摆率：9 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：AUTOMOTIVE
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

AD8429ARZ 数据手册

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1 nV/√Hz Low Noise  
Instrumentation Amplifier  
AD8429  
FEATURES  
PIN CONNECTION DIAGRAM  
Low noise  
1 nV/√Hz input noise  
45 nV/√Hz output noise  
AD8429  
1
2
3
4
8
7
6
5
–IN  
+V  
S
R
R
V
OUT  
G
G
REF  
–V  
High accuracy dc performance (AD8429BRZ)  
90 dB CMRR minimum (G = 1)  
50 μV maximum input offset voltage  
0.02% maximum gain accuracy (G = 1)  
Excellent ac specifications  
80 dB CMRR to 5 kHz (G = 1)  
15 MHz bandwidth (G = 1)  
1.2 MHz bandwidth (G = 100)  
22 V/μs slew rate  
+IN  
S
TOP VIEW  
(Not to Scale)  
Figure 1.  
THD: −130 dBc (1 kHz, G = 1)  
Versatile  
4 V to 18 V dual supply  
Gain set with a single resistor (G = 1 to 10,000)  
Temperature range for specified performance  
−40°C to +125°C  
APPLICATIONS  
Medical instrumentation  
Precision data acquisition  
Microphone preamplification  
Vibration analysis  
GENERAL DESCRIPTION  
The AD8429 is an ultralow noise, instrumentation amplifier  
designed for measuring extremely small signals over a wide  
temperature range (−40°C to +125°C).  
be useful to shift the output level when interfacing to a single  
supply signal chain.  
The AD8429 performance is specified over the extended industrial  
The AD8429 excels at measuring tiny signals. It delivers ultralow  
input noise performance of 1 nV/√Hz. The high CMRR of the  
AD8429 prevents unwanted signals from corrupting the acqui-  
sition. The CMRR increases as the gain increases, offering high  
rejection when it is most needed. The high performance pin  
configuration of the AD8429 allows it to reliably maintain high  
CMRR at frequencies well beyond those of typical instrumentation  
amplifiers.  
temperature range of −40°C to +125°C. It is available in an 8-lead  
plastic SOIC package.  
1000  
100  
G = 1  
10  
The AD8429 reliably amplifies fast changing signals. Its current  
feedback architecture provides high bandwidth at high gain, for  
example, 1.2 MHz at G = 100. The design includes circuitry to im-  
prove settling time after large input voltage transients. The AD8429  
was designed for excellent distortion performance, allowing use in  
demanding applications such as vibration analysis.  
G = 10  
G = 100  
1
G = 1k  
0.1  
1
10  
100  
1k  
10k  
100k  
Gain is set from 1 to 10,000 with a single resistor. A reference  
pin allows the user to offset the output voltage. This feature can  
FREQUENCY (Hz)  
Figure 2. RTI Voltage Noise Spectral Density vs. Frequency  
Rev. 0  
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. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
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  
©2011 Analog Devices, Inc. All rights reserved.  
 
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