MC34071ADR2G

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Linear amplifiers are an integral part of many electronic circuits. They are often used to amplify signals for both the input and output stages of applications. In particular, the MC34071ADR2G is designed for use in high-power instrumentation and other linear applications. It is a leaded dual operational transconductance amplifier (OTA). This high-performance device features excellent linearity, low distortion and low noise.

Application Field

The primary applications of the MC34071ADR2G are instrumentation and signal conditioning. It is capable of producing large outputs with low distortion, making it well suited for applications such as fast A/D conversion, signal filtering and data acquisition. It is also used in industrial automation and home automation systems, as well as in professional audio equipment.

Working Principle

The MC34071ADR2G is a cascode-connected OTA. A cascode connection involves connecting a pair of transistors in parallel, with the source of one transistor connected to the drain of the other. This creates a current path between the two transistors, increasing the amplifier’s gain while suppressing the effects of input capacitance. The MC34071ADR2G has a wide input common-mode voltage range and can be operated with a single power supply voltage.

The OTA is a differential amplifier that amplifies an input voltage difference to produce an output voltage difference. The differential amplifier has two input signals—the positive and negative inputs—which are compared to identify the difference between the two. The differential amplifier is the basic building block of analog signal processing.

The MC34071ADR2G is designed to provide excellent linearity, low distortion and low noise. Its common-mode rejection ratio (CMRR) is greater than 110 dB, and its power supply rejection ratio (PSRR) is greater than 80 dB. This makes the device suitable for demanding linear applications such as video signal processing, video and audio signal conditioning, power supply regulation and more.

The MC34071ADR2G is available in an 8-lead PDIP, 8-lead SOIC, and 8-lead TSSOP packages. It has a junction temperature rating of up to 125°C and an ambient temperature range of 0°C to 70°C.

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