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AD822AN 参数 Datasheet PDF下载

AD822AN图片预览
型号: AD822AN
PDF下载: 下载PDF文件 查看货源
内容描述: 单电源,轨到轨低功耗FET输入运算放大器 [Single-Supply, Rail-to-Rail Low Power FET-Input Op Amp]
分类和应用: 运算放大器放大器电路光电二极管
文件页数/大小: 28 页 / 597 K
品牌: AD [ ANALOG DEVICES ]
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Single-Supply, Rail-to-Rail
Low Power FET-Input Op Amp
AD822
FEATURES
True single-supply operation
Output swings rail-to-rail
Input voltage range extends below ground
Single-supply capability from 3 V to 36 V
Dual-supply capability from ±1.5 V to ±18 V
High load drive
Capacitive load drive of 350 pF, G = +1
Minimum output current of 15 mA
Excellent ac performance for low power
800 μA maximum quiescent current per amplifier
Unity gain bandwidth: 1.8 MHz
Slew rate of 3.0 V/μs
Good dc performance
800 μV maximum input offset voltage
2 μV/°C typical offset voltage drift
25 pA maximum input bias current
Low noise
13 nV/√Hz @ 10 kHz
No phase inversion
CONNECTION DIAGRAM
OUT1 1
–IN1 2
+IN1 3
V– 4
8 V+
7 OUT2
6 –IN2
AD822
5 +IN2
Figure 1. 8-Lead PDIP (N Suffix); 8-Lead MSOP (RM Suffix);
and 8-Lead SOIC (R Suffix)
GENERAL DESCRIPTION
The AD822 is a dual precision, low power FET input op amp
that can operate from a single supply of 3.0 V to 36 V or dual
supplies of ±1.5 V to ±18 V. It has true single-supply capability
with an input voltage range extending below the negative rail,
allowing the AD822 to accommodate input signals below
ground in the single-supply mode. Output voltage swing
extends to within 10 mV of each rail, providing the maximum
output dynamic range.
100
Battery-powered precision instrumentation
Photodiode preamps
Active filters
12-bit to 14-bit data acquisition systems
Medical instrumentation
Low power references and regulators
INPUT VOLTAGE NOISE (nV/√Hz)
APPLICATIONS
10
100
1k
FREQUENCY (Hz)
10k
Figure 2. Input Voltage Noise vs. Frequency
Offset voltage of 800 μV maximum, offset voltage drift of 2 μV/°C,
input bias currents below 25 pA, and low input voltage noise
provide dc precision with source impedances up to a gigaohm. The
1.8 MHz unity gain bandwidth, –93 dB THD at 10 kHz, and 3 V/μs
slew rate are provided with a low supply current of 800 μA per
amplifier.
(continued on Page 3)
Rev. G
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
©2006 Analog Devices, Inc. All rights reserved.
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