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AD8273ARZ 数据手册 - ADI（亚德诺）
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ADI（亚德诺）
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放大器、缓冲器
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SOIC-14
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ANALOG DEVICES AD8273ARZ 差分放大器, 2 放大器, 2 dB, 20000 kHz, -40 °C, 85 °C
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AD8273ARZ数据手册
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Very Low Distortion, Dual-Channel,
High Precision Difference Amplifier
AD8273
Rev. B
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 www.analog.com
Fax: 781.461.3113 ©2008–2010 Analog Devices, Inc. All rights reserved.
FEATURES
±4000 V HBM ESD
Very low distortion
0.00025% THD + N (20 kHz)
0.0015% THD + N (100 kHz)
Drives 600 Ω loads
Two gain settings
Gain of ½ (−6 dB)
Gain of 2 (+6 dB)
0.05% maximum gain error
10 ppm/°C maximum gain drift
Excellent ac specifications
20 V/μs minimum slew rate
800 ns to 0.01% settling time
High accuracy dc performance
77 dB minimum CMRR
700 μV maximum offset voltage
14-lead SOIC package
Supply current: 2.5 mA maximum per channel
Supply range: ±2.5 V to ±18 V
APPLICATIONS
ADC drivers
High performance audio
Instrumentation amplifier building blocks
Level translators
Automatic test equipment
Sine/cosine encoders
FUNCTIONAL BLOCK DIAGRAM
12kΩ
+
V
S
–V
S
12kΩ
6kΩ
6kΩ
12kΩ
12kΩ
6kΩ
6kΩ
2
3
6
12
14
13
10
9
58
4
11
06981-001
Figure 1.
GENERAL DESCRIPTION
The AD8273 is a low distortion, dual-channel amplifier with
internal gain setting resistors. With no external components, it
can be configured as a high performance difference amplifier
(G = ½ or 2), inverting amplifier (G = ½ or 2), or noninverting
amplifier (G = 1½ or 3).
The AD8273 operates on both single and dual supplies and only
requires 2.5 mA maximum supply current for each amplifier. It
is specified over the industrial temperature range of −40°C to
+85°C and is fully RoHS compliant.
Table 1. Difference Amplifiers by Category
Low
Distortion
High
Voltage
Single-Supply
Unidirectional
Single-Supply
Bidirectional
AD8270 AD628 AD8202 AD8205
AD8273 AD629 AD8203 AD8206
AD8274 AD8216
AMP03
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