Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

The AD8602 ARMZ-R2 is a dual low power instrumentation amplifier designed to reduce the power consumption of the circuit it is being placed into. The AD8602 ARMZ-R2 is a low power, low noise programmable instrumentation amplifier, which can be used for a range of applications such as signal conditioning, medical testing, portable communications, and interfacing with sensors.

Application fields:

• Medical devices
• Portable devices
• Automotive components
• Industrial process control
• Data acquisition systems
• Multimedia and gaming systems

Features:

• Low power consumption (1.3 mW)
• Low voltage operation (1.8 to 5.5 V)
• High accuracy (0.2 %)
• Programmable gain (10 simple gains)
• Low noise (0.1 µVrms)

Working Principle:

The AD8602 ARMZ-R2 operates based on the same principles as all instrumentation amplifiers, which primarily use feedback to keep output signals in the linear range. The device consists of two input amplifiers, an output amplifier, and a feedback resistor Rf. The input amplifiers have high input impedance, meaning that they take in very little current, and they have low output impedance, meaning they can source or sink a great amount of current.

The inputs of the amplifier are connected to the two input amplifiers. The output amplifier is connected to the two input amplifiers via a feedback resistor Rf. The output amplifier is also connected to a load, which consists of a resistor in series with the output of the amplifier. The feedback resistor Rf, along with the series resistor and the input signals, create a closed feedback loop around the amplifier. The closed loop ensures that the gain of the amplifier remains constant, regardless of the values of the two input signals.

The gain of the amplifier is controlled by the feedback resistor Rf. The gain of the amplifier is given by the formula: A=1+ (Rf/Rs), where Rs is the series resistor connected to the output of the amplifier. By changing Rf, the gain of the amplifier can be adjusted. The AD8602 ARMZ-R2 also has an input impedance of 10 MΩ, further increasing the accuracy of the instrumentation amplifier.

The specific data is subject to PDF, and the above content is for reference