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AD622

Analog Devices
Part Number AD622
Manufacturer Analog Devices
Description Low Cost Instrumentation Amplifier
Published Mar 23, 2005
Detailed Description a FEATURES Easy to Use Low Cost Solution Higher Performance than Two or Three Op Amp Design Unity Gain with No External ...
Datasheet PDF File AD622 PDF File

AD622
AD622

Overview
a FEATURES Easy to Use Low Cost Solution Higher Performance than Two or Three Op Amp Design Unity Gain with No External Resistor Optional Gains with One External Resistor (Gain Range 2 to 1000) Wide Power Supply Range (؎ 2.
6 V to ؎15 V) Available in 8-Lead PDIP and SOIC Low Power, 1.
5 mA max Supply Current GOOD DC PERFORMANCE 0.
15% Gain Accuracy (G = 1) 125 ␮V max Input Offset Voltage 1.
0 ␮ V/؇C max Input Offset Drift 5 nA max Input Bias Current 66 dB min Common-Mode Rejection Ratio (G = 1) NOISE 12 nV/√ Hz @ 1 kHz Input Voltage Noise 0.
60 ␮V p-p Noise (0.
1 Hz to 10 Hz, G = 10) EXCELLENT AC CHARACTERISTICS 800 kHz Bandwidth (G = 10) 10 ␮ s Settling Time to 0.
1% @ G = 1–100 1.
2 V/␮ s Slew Rate APPLICATIONS Transducer Interface Low Cost Thermocouple Amplifier Industrial Process Controls Difference Amplifier Low Cost Data Acquisition Low Cost Instrumentation Amplifier AD622 CONNECTION DIAGRAM RG –IN +IN –VS 1 2 3 4 8 7 6 RG +VS OUTPUT REF AD622 5 PRODUCT DESCRIPTION The AD622 is a low cost, moderately accurate instrumentation amplifier that requires only one external resistor to set any gain between 2 and 1,000.
Or for a gain of 1, no external resistor is required.
The AD622 is a complete difference or subtracter amplifier “system” while providing superior linearity and commonmode rejection by incorporating precision laser trimmed resistors.
The AD622 replaces low cost, discrete, two or three op amp instrumentation amplifier designs and offers good commonmode rejection, superior linearity, temperature stability, reliability, and board area consumption.
The low cost of the AD622 eliminates the need to design discrete instrumentation amplifiers to meet stringent cost targets.
While providing a lower cost solution, it also provides performance and space improvements.
REV.
C 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...


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