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AD8656ARMZ-REEL

更新时间: 2024-11-09 04:30:07
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页数 文件大小 规格书
20页 329K
描述
Low Noise, Precision CMOS Amplifier

AD8656ARMZ-REEL 数据手册

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Low Noise,  
Precision CMOS Amplifier  
AD8655/AD8656  
FEATURES  
PIN CONFIGURATIONS  
Low noise: 2.7 nV/Hz @ f = 10 kHz  
Low offset voltage: 250 μV max over VCM  
Offset voltage drift: 0.4 μV/°C typ and 2.3 μV/°C max  
Bandwidth: 28 MHz  
NC  
–IN  
+IN  
V–  
1
2
3
4
8
7
6
5
NC  
V+  
OUT A  
–IN A  
+IN A  
V–  
1
2
3
4
8
7
6
5
V+  
AD8655  
AD8656  
OUT B  
–IN B  
+IN B  
TOP VIEW  
TOP VIEW  
(Not to Scale)  
OUT  
NC  
(Not to Scale)  
Rail-to-rail input/output  
NC = NO CONNECT  
Unity gain stable  
2.7 V to 5.5 V operation  
−40°C to +125°C operation  
Figure 1. AD8655  
8-Lead MSOP (RM-8)  
Figure 2. AD8656  
8-Lead MSOP (RM-8)  
APPLICATIONS  
ADC and DAC buffers  
Audio  
Industrial controls  
Precision filters  
Digital scales  
Strain gauges  
PLL filters  
NC  
1
8
7
6
5
NC  
OUT A  
–IN A  
+IN A  
V–  
1
2
3
4
8
7
6
5
V+  
AD8655  
AD8656  
–IN  
+IN  
V–  
2
3
4
V+  
OUT B  
–IN B  
+IN B  
OUT  
NC  
TOP VIEW  
(Not to Scale)  
TOP VIEW  
(Not to Scale)  
NC = NO CONNECT  
Figure 3. AD8655  
8-Lead SOIC (R-8)  
Figure 4. AD8656  
8-Lead SOIC (R-8)  
GENERAL DESCRIPTION  
The AD8655/AD8656 are the industrys lowest noise, precision  
CMOS amplifiers. They leverage the Analog Devices DigiTrim®  
technology to achieve high dc accuracy.  
The high precision performance of the AD8655/AD8656  
improves the resolution and dynamic range in low voltage  
applications. Audio applications, such as microphone pre-amps  
and audio mixing consoles, benefit from the low noise, low  
distortion, and high output current capability of the AD8655/  
AD8656 to reduce system level noise performance and maintain  
audio fidelity. The high precision and rail-to-rail input and  
output of the AD8655/AD8656 benefit data acquisition, process  
controls, and PLL filter applications.  
The AD8655/AD8656 provide low noise (2.7 nV/√Hz @ 10 kHz),  
low THD + N (0.0007%), and high precision performance  
(250 μV max over VCM) to low voltage applications. The ability  
to swing rail-to-rail at the input and output enables designers  
to buffer analog-to-digital converters (ADCs) and other wide  
dynamic range devices in single-supply systems.  
The AD8655/AD8656 are fully specified over the −40°C to  
+125°C temperature range. The AD8655/AD8656 are available  
in Pb-free, 8-lead MSOP and SOIC packages.  
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, 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  
registered trademarks are the 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  
© 2005 Analog Devices, Inc. All rights reserved.  

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