OPA3693IDBQ

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OPA3693IDBQ Application Field and Working Principle

Linear amplifiers are often used for many applications, and the OPA3693IDBQ amplifier is a common choice in these applications due to its stability, low distortion, and low noise floor. This article will discuss the application field and the working principle of the OPA3693IDBQ amplifier.

OPA3693IDBQ Application Field

The OPA3693IDBQ is a dual-channel, low-noise, low-distortion, differential voltage output amplifier, optimized for operation in low-power audio/video systems and applications. It is useful in applications like preamplifiers and power amplifiers, as well as opto-couplers, analog filters, line receivers, transistors, and active back ends.

The OPA3693IDBQ is also suitable for video applications such as video amplifiers, video switches, and video modules. This amplifier has a low cutoff frequency of 10kHz and can provide a gain of up to 15dB.

Also, since it is a differential amplifier, it is especially suitable for applications such as differential line receivers, differential video amplifiers, and differential video modules.

OPA3693IDBQ Working Principle

The OPA3693IDBQ is designed for low-power audio and video applications. Its low noise and low distortion capabilities are due to the balanced input configuration and the use of complementary bipolar transistor technology.

The OPA3693IDBQ consists of two complete differential input amplifier channels. The inputs of the two channels are connected in a balanced configuration, which reduces noise and distortion while providing a certain level of linearity. Both the inverting and non-inverting inputs are connected to a tail current, which is generated by two series transistors.

The differential amplification of the OPA3693IDBQ is set by two external resistors, which determine the gain of the amplifier. The amplifier’s gain can be adjusted in a range of 0.5 to 15dB. The output stages of the two channels are connected in a push-pull configuration, which increases the voltage output and reduces distortion.

The OPA3693IDBQ also incorporates an edge-triggered current-source-based input stage, which reduces the effects of non-linear distortion. This feature allows the amplifier to achieve low-noise and low-distortion performance.

Finally, the OPA3693IDBQ has an output stage that is designed to provide a low output impedance, low transient response time, and low thermal drift. This feature makes the amplifier well suited for use in low-power audio/video systems and applications.

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