參數(shù)資料
型號(hào)： AD623BRZ-RL
廠(chǎng)商： Analog Devices Inc
文件頁(yè)數(shù)： 1/24頁(yè)
文件大小： 0K
描述： IC AMP INST R-R LP 8SOIC
標(biāo)準(zhǔn)包裝： 2,500
放大器類(lèi)型： 儀表
電路數(shù)： 1
輸出類(lèi)型： 滿(mǎn)擺幅
轉(zhuǎn)換速率： 0.3 V/µs
-3db帶寬： 800kHz
電流 - 輸入偏壓： 17nA
電壓 - 輸入偏移： 25µV
電流 - 電源： 375µA
電壓 - 電源，單路/雙路(±)： 2.7 V ~ 12 V，± 2.5 V ~ 6 V
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SO
包裝： 帶卷 (TR)
Single-Supply, Rail-to-Rail, Low Cost
Instrumentation Amplifier
AD623
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
www.analog.com
Fax: 781.461.3113
1997–2008 Analog Devices, Inc. All rights reserved.
FEATURES
Easy to use
Higher performance than discrete design
Single-supply and dual-supply operation
Rail-to-rail output swing
Input voltage range extends 150 mV below
ground (single supply)
Low power, 550 μA maximum supply current
Gain set with one external resistor
Gain range: 1 (no resistor) to 1000
High accuracy dc performance
0.10% gain accuracy (G = 1)
0.35% gain accuracy (G > 1)
10 ppm maximum gain drift (G = 1)
200 μV maximum input offset voltage (AD623A)
2 μV/°C maximum input offset drift (AD623A)
100 μV maximum input offset voltage (AD623B)
1 μV/°C maximum input offset drift (AD623B)
25 nA maximum input bias current
Noise: 35 nV/√Hz RTI noise @ 1 kHz (G = 1)
Excellent ac specifications
90 dB minimum CMRR (G = 10); 70 dB minimum CMRR (G = 1)
at 60 Hz, 1 kΩ source imbalance
800 kHz bandwidth (G = 1)
20 μs settling time to 0.01% (G = 10)
APPLICATIONS
Low power medical instrumentation
Transducer interfaces
Thermocouple amplifiers
Industrial process controls
Difference amplifiers
Low power data acquisition
GENERAL DESCRIPTION
The AD623 is an integrated single-supply instrumentation
amplifier that delivers rail-to-rail output swing on a 3 V to 12 V
supply. The AD623 offers superior user flexibility by allowing
single gain set resistor programming and by conforming to the
8-lead industry standard pinout configuration. With no external
resistor, the AD623 is configured for unity gain (G = 1), and
with an external resistor, the AD623 can be programmed for
gains up to 1000.
CONNECTION DIAGRAM
1
–RG
8
+RG
2
–IN
7
+VS
3
+IN
6
OUTPUT
4
–VS
5
REF
AD623
TOP VIEW
(Not to Scale)
0
07
78
-00
1
Figure 1. 8-Lead PDIP (N), SOIC (R), and MSOP (RM) Packages
120
30
40
50
60
70
80
90
100
110
1
10
100
1k
10k
100k
CM
R
(
d
B)
FREQUENCY (Hz)
×1000
×100
×10
×1
00
77
8-
0
02
Figure 2. CMR vs. Frequency, 5 VS, 0 VS
The AD623 holds errors to a minimum by providing superior
ac CMRR that increases with increasing gain. Line noise, as
well as line harmonics, are rejected because the CMRR remains
constant up to 200 Hz. The AD623 has a wide input common-
mode range and can amplify signals that have a common-mode
voltage 150 mV below ground. Although the design of the AD623
was optimized to operate from a single supply, the AD623 still
provides superior performance when operated from a dual
voltage supply (±2.5 V to ±6.0 V).
Low power consumption (1.5 mW at 3 V), wide supply voltage
range, and rail-to-rail output swing make the AD623 ideal
for battery-powered applications. The rail-to-rail output stage
maximizes the dynamic range when operating from low supply
voltages. The AD623 replaces discrete instrumentation amplifier
designs and offers superior linearity, temperature stability, and
reliability in a minimum of space.
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