AD8620BRZ

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• AD8620BRZ Application Field and Working Principle
• Introduction
  • The AD8620BRZ is a low input bias current and low voltage noise, JFET-input operational amplifier (op-amp) optimized for low-level signal, with rail-to-rail output and wide bandwidth. It is designed for use as a buffer amplifier, low-noise preamplifier, general-purpose voltage-controlled amplifier and output stage of active filter circuits. This op-amp provides very low noise and high precision, making it suitable for a wide range of applications.
• Application Fields
  • The AD8620BRZ op-amp can be used in a variety of different applications involving the amplification of low-level signals. It is suitable for use in a variety of instrumentation and medical electronics systems, including ultrasound, electrocardiogram (EKG) monitoring, medical imaging systems and other applications requiring precise voltage control. It is also suitable for use in audio/video systems, instrumentation amplification and precision measurement and control systems.
• Working Principle
  • The AD8620BRZ is a low-noise, low-input-bias-current, JFET-input op-amp. It features a low voltage noise of 0.9nV/√Hz, low input bias current of 200pA, and wide bandwidth of up to 1.3GHz. It operates on a single supply of 2.7V to 36V, allowing it to be used in a variety of applications. The op-amp is designed for low-level signal amplification and excels at high-speed, low-noise operation. It can provide up to 95dB of gain and is configured as an inverting or non-inverting amplifier.
  • To set up the AD8620BRZ op-amp as an inverting amplifier, the inverting input should be connected to ground, and the non-inverting input should be connected to the input signal source. The feedback resistor should then be connected between the output and the inverting input. The gain of the amplifier can be controlled by the value of this feedback resistor. To set up the AD8620BRZ as a non-inverting amplifier, the non-inverting input should be connected to ground and the inverting input connected to the input signal source. The gain of the amplifier will be controlled by the feedback resistor connected between the output and the non-inverting input.
  • The AD8620BRZ also features an offset adjustment pin which can be used to adjust the offset of the amplifier. This feature is particularly useful in applications where precise voltage control is important. The AD8620BRZ also has a low output impedance, allowing it to drive large capacitive loads.

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