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| 型號： | AD823ARZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP JFET R-R DUAL LN 8SOIC |
| 標準包裝： | 2,500 |
| 放大器類型： | J-FET |
| 電路數(shù)： | 2 |
| 輸出類型： | 滿擺幅 |
| 轉換速率： | 25 V/µs |
| -3db帶寬： | 16MHz |
| 電流 - 輸入偏壓： | 5pA |
| 電壓 - 輸入偏移： | 700µV |
| 電流 - 電源： | 7mA |
| 電流 - 輸出 / 通道： | 17mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 36 V，±1.5 V ~ 18 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
Dual, 16 MHz, Rail-to-Rail
FET Input Amplifier
Data Sheet
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
1995–2011 Analog Devices, Inc. All rights reserved.
FEATURES
Single-supply operation
Output swings rail-to-rail
Input voltage range extends below ground
Single-supply capability from 3 V to 36 V
High load drive
Capacitive load drive of 500 pF, G = +1
Output current of 15 mA, 0.5 V from supplies
Excellent ac performance on 2.6 mA/amplifier
3 dB bandwidth of 16 MHz, G = +1
350 ns settling time to 0.01% (2 V step)
Slew rate of 22 V/s
Good dc performance
800 V maximum input offset voltage
2 V/°C offset voltage drift
25 pA maximum input bias current
Low distortion: 108 dBc worst harmonic @ 20 kHz
Low noise: 16 nV/√Hz @ 10 kHz
No phase inversion with inputs to the supply rails
APPLICATIONS
Battery-powered precision instrumentation
Photodiode preamps
Active filters
12-bit to 16-bit data acquisition systems
Medical instrumentation
GENERAL DESCRIPTION
The AD823 is a dual precision, 16 MHz, JFET input op amp
that can operate from a single supply of 3.0 V to 36 V or from
dual supplies of ±1.5 V to ±18 V. It has true single-supply
capability with an input voltage range extending below ground
in single-supply mode. Output voltage swing extends to within
50 mV of each rail for IOUT ≤ 100 A, providing outstanding
output dynamic range.
An offset voltage of 800 V maximum, an offset voltage drift of
2 V/°C, input bias currents below 25 pA, and low input voltage
noise provide dc precision with source impedances up to a
Gigaohm. It provides 16 MHz, 3 dB bandwidth, 108 dB THD
@ 20 kHz, and a 22 V/s slew rate with a low supply current of
2.6 mA per amplifier. The AD823 drives up to 500 pF of direct
capacitive load as a follower and provides an output current of
15 mA, 0.5 V from the supply rails. This allows the amplifier to
handle a wide range of load conditions.
CONNECTION DIAGRAM
AD823
OUT1
+IN2
–IN2
OUT2
+VS
–IN1
+IN1
–VS
1
2
3
4
8
7
6
5
00901-
001
Figure 1. 8-Lead PDIP and SOIC
3V
GND
00901-
002
RL = 100k
CL = 50pF
+VS = +3V
G = +1
500mV
200s
Figure 2. Output Swing, +VS = +3 V, G = +1
FREQUENCY (Hz)
–8
OU
TP
U
T
(
dB
)
1k
–6
–7
2
1
10k
100k
1M
+VS = +5V
G = +1
–5
–4
–3
–2
–1
0
10M
00901-
003
Figure 3. Small Signal Bandwidth, G = +1
This combination of ac and dc performance, plus the outstanding
load drive capability, results in an exceptionally versatile ampli-
fier for applications such as A/D drivers, high speed active
filters, and other low voltage, high dynamic range systems.
The AD823 is available over the industrial temperature range of
40°C to +85°C and is offered in both 8-lead PDIP and 8-lead
SOIC packages.
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