AD622AR

The AD622AR is one member of the AD622 series.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.

Features of the AD622AR are:(1)Easy to use; (2)low cost solution; (3)higher performance than two or three op amp design; (4)unity gain with no external resistor; (5)optional gains with one external resistor(gain range 2 to 1000); (6)wide power supply range (62.6 V to 615 V); (7)available in 8-Lead PDIP and SOIC; (8)low power, 1.5 mA max supply current.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.

The absolute maximum ratings of the AD622AR can be summarized as:(1)supply voltage:±18 V;(2)storage temperature:-65 to +125;(3)internal power dissipation:650 mW;(4)input voltage:±Vs;(5)lead temperature range (soldering 60 sec):+300.Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection.Although the AD648 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.