AD8602ARZ

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The AD8602ARZ is an integrated, low noise, low power instrumentation amplifier designed to operate in single-ended and cascade configurations. It is a versatile instrumentation amplifier with many features, including a low-noise front end, adjustable gain, buffered output and adjustable output levels, low distortion, and excellent power supply rejection.The AD8602ARZ provides an accurate, dynamically adjustable input-to-output gain ranging from unity to infinity in 1 dB steps. The gain adjustment is achieved by means of a four-bit digital control logic, which allows the user to program the gain and offset settings. The gain and offset can be adjusted for both single-ended and cascade configurations.The output of the amplifier is buffered to allow driving of multiple load capacitances in addition to avoiding load related input and output distortion problems. A large output decoupling capacitor is recommended for increased linearity and reduced noise. The AD8602ARZ also has an additional output stage which is used to buffer the output and to reduce the gain accuracy and noise performance.The AD8602ARZ is ideal for applications such as strain gauge amplifiers, bridge amplifiers, data acquisition, medical monitoring, and audio signal processing. It can be used to amplify small signals in low noise environments, and is especially suitable for low-frequency applications.The AD8602ARZ is fabricated using advanced silicone on sapphire (CSOS) technology, which provides a high level of stability and is well suited for medical, industrial and consumer applications. The device features a wide supply voltage range (2.5 V to 20 V) and an input common mode voltage range of 0.25 V to VS - 0.25 V.The AD8602ARZ operates on a single power supply and consumes only 1.2 mA of quiescent current. Its low noise input-referred voltage noise density is 80 μV/√Hz at 1 kHz. The AD8602ARZ includes overload detection and a shutdown feature that disconnects the input from the output and turns off the internal circuitry to prevent damage.The input bias current of the AD8602ARZ is low and is typically 0.4 μA. The limitations on input current are important in medical and industrial applications where sensitive signal sources require low noise operation. The slew rate of the amplifier is typically 5 V/μs with a gain of 10 and a supply voltage of 5 V.The AD8602ARZ is a versatile instrumentation amplifier that can operate in single ended and cascade configurations. It provides a wide adjustable gain range and an excellent power supply rejection ratio. Its low noise, low power consumption and adjustable offset make it an excellent choice for medical, industrial and consumer applications.

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