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AD822ACHIPS 数据表(PDF) 1 Page - Analog Devices

部件名 AD822ACHIPS
功能描述  Single Supply, Rail-to-Rail Low Power FET-Input Op Amp
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD822ACHIPS 数据表(HTML) 1 Page - Analog Devices

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CONNECTION DIAGRAM
8-Pin Plastic DIP, Cerdip and SOIC
OUT1
–IN1
+IN1
V–
V+
OUT2
–IN2
+IN2
1
2
3
4
8
7
6
5
AD822
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Single Supply, Rail-to-Rail
Low Power FET-Input Op Amp
AD822
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
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
A Max Quiescent Current per Amplifier
Unity Gain Bandwidth: 1.8 MHz
Slew Rate of 3.0 V/ s
GOOD DC PERFORMANCE
800
V Max Input Offset Voltage
2
V/ C Typ Offset Voltage Drift
25 pA Max Input Bias Current
LOW NOISE
13 nV/
√Hz @ 10 kHz
NO PHASE INVERSION
APPLICATIONS
Battery Powered Precision Instrumentation
Photodiode Preamps
Active Filters
12- to 14-Bit Data Acquisition Systems
Medical Instrumentation
Low Power References and Regulators
PRODUCT 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.
Offset voltage of 800
µV max, 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.
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. The AD822 drives up to 350 pF of direct
capacitive load as a follower, and provides a minimum output
current of 15 mA. This allows the amplifier to handle a wide
range of load conditions. This combination of ac and dc
performance, plus the outstanding load drive capability, results
in an exceptionally versatile amplifier for the single supply user.
The AD822 is available in four performance grades. The A and
B grades are rated over the industrial temperature range of
–40
°C to +85°C. There is also a 3 volt grade—the AD822A-3V,
rated over the industrial temperature range. The mil grade is
rated over the military temperature range of –55
°C to +125°C
and is available processed on standard military drawing.
The AD822 is offered in three varieties of 8-pin package: plastic
DIP, hermetic cerdip and surface mount (SOIC) as well as die
form.
10
90
100
0%
1V
1V
20µ
s
1V
5V
VOUT
0V
(GND)
Gain of +2 Amplifier; VS = +5, 0, VIN = 2.5 V Sine Centered
at 1.25 Volts, RL = 100 kΩ
Input Voltage Noise vs. Frequency
100
10
1
10
100
10k
1k
FREQUENCY – Hz


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类似说明 - AD822ACHIPS

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