AD621BR

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AD621BR is a field-effect transistor (FET) type operational amplifier (op-amp). It is a monolithic integrated circuit designed to be used in a wide variety of instrumentation, buffer amplifier, and linear amplifier applications. It provides true single-supply operation, high output current drive, low power consumption, and low input bias current.

The typical application fields for the AD621BR include precise amplification and voltage/current/resistance conversion. It can be used in a variety of linear systems such as high-precision DC motor control, power supplies, regulators, and audio pre-amplifiers.

The AD621BR offers high speed and linear performance due to its push-pull output stage. Its wide frequency response ranges from DC-200KHz and it is capable of driving a 3KΩ load with just one battery in operation. The op amp also features an input voltage noise of 0.3nV/√Hz and has a low power consumption of less than 0.5mW.

The device operates on dual supplies and features a slew rate of 800V/μs and a unity gain bandwidth of 8MHz. It comes with a wide common-mode voltage range of 0V to V+/2, with a guaranteed common-mode rejection ratio (CMRR) of at least 35dB. The AD621BR also has an input offset voltage drift of 0.5uV/oC and a reverse isolation of greater than 50dB.

The AD621BR is based on the differential pair architecture. This type of operational amplifier has two current flow paths and operates on the electrical principle of negative feedback. The amplifier compares the input signal voltage to an inverting reference, and then subtracts the difference through a gain stage. This gives the user precise, accurate amplifier characteristics and improved linearity.

The AD621BR is a unique, FET type amplifier that offers a wide range of features, including high precision, low power consumption, low input bias current, wide common-mode voltage range, and unity gain bandwidth. Its wide application field and superior features make it suitable for a variety of audio pre-amplifier, instrumentation, linear amplifier, and buffer amplifier applications.

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