OP284ESZ

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The OP284ESZ is a single channel, differentiator amplifier from Analog Devices. It is a precision monolithic tool designed for applications such as temperature controllers, motion controllers, and low level signal conditioning. It is an instrumentation amplifier that requires minimal external components for most applications.

The OP284ESZ features a six-section differential input stage for common mode rejection and a wide range of flexible gain and bandwidth settings. Also, the OP284ESZ operates on a wide range of supply voltages and includes an on-chip voltage reference. Furthermore, its very low input noise of 17nV/rtHz and input-referred offset of 10uV make it suitable for measurement and amplification of small signals, particularly where long-term stability is required.

The OP284ESZ has an adjustable common mode rejection up to 120dB, which makes it ideal for differential measurement and conditioning of noisy signals. Additionally, its high-frequency, low-noise bandwidth of 1MHz is suitable for filtering and conditioning of wide-bandwidth signals. The OP284ESZ also has a variable gain from 1 to 10V/V, adjustable common mode voltage up to 25V, and variable low frequency cut off (2-1000Hz).

The working principle of the OP284ESZ is based on the use of an operational transconductance amplifier (OTA). The operational transconductance amplifier provides a high-gain, low-noise signal differentialpath. This differentialpath is used to create a differential input stage that allows the OP284ESZ to reject common mode signals while amplifying the desired signal.

The OP284ESZ also includes an on-chip voltage reference to provide a stable and accurate output. The voltage reference also compensates for variations in power supply voltage, temperature, and time. The OP284ESZ also has an on-chip temperature-compensated trim-pot for gain and offset trimming, as well as for filter frequency and common mode rejection settings.

In sum, the OP284ESZ is a precision differentiator amplifier from Analog Devices that is suitable for measurement and amplification of small signals, particularly where long-term stability is required. It has an adjustable common mode rejection up to 120dB, a high-frequency, low-noise bandwidth of 1MHz, and a variable gain from 1 to 10V/V. It operates with a wide range of supply voltages and includes an on-chip voltage reference. The working principle of the OP284ESZ is based on the use of an operational transconductance amplifier (OTA) to provide a differential input stage to reject common mode signals while amplifying the desired signal.

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