LTC6421CUDC-20#TRPBF

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Linear amplifiers are designed to amplify AC signals while maintaining the input signal’s waveform. Special purpose linear amplifiers are specialized to particular styles of signal. As such, they are generally more accurate and reliable than generic amplifiers. One example of a special purpose linear amplifier is the LTC6421CUDC-20#TRPBF.

Application Field

The LT6421CUDC-20#TRPBF is a Class AB linear amplifier specifically designed for robust operation in Automotive systems — CAN, Ethernet, and other automotive electronics — and compatible with a variety of power supplies and voltages. It includes an integrated, system-level protection circuit for voltage, current, and thermal management. This protection circuit helps prevent damage to electronics and improves overall system performance. The amplifier also includes a system-level thermal management device which helps keep the temperature of the components at a safe operating level.

This linear amplifier provides high-speed AC and DC characteristics, high common-mode rejection and low noise. It has an integrated gain-set resistor, which allows easy adjustment and selection of gain. The amplifier features a shutdown mode which allows it to be powered off when not in use, and a buffered output to extend the transmission range and improve signal quality. The integrated low-side MOSFET driver helps minimize the noise picked up by sensitive signal paths, reducing power losses and improving overall system performance.

Working Principle

The working principle of the LTC6421CUDC-20#TRPBF is to take in an input signal and amplify it to create a high-output signal. It does this using an integrated, thermally balanced input/output stage, which helps reduce distortion caused by thermal effects and ensure high AC performance. The resistor-programmable gain factor helps set the amplification, and the low-side MOSFET driver reduces noise on sensitive signal paths.

The amplifier includes a circuit for system-level protection and temperature management. The system-level protection circuit helps prevent damage to electronics and preserves system performance by monitoring and controlling power supply voltage, current, and thermal parameters. The built-in temperature management device helps keep components at a safe operating temperature.

The amplifier features a shutdown mode, allowing it to be powered off when not in use and a buffered output to extend the transmission range and improve signal quality. Finally, the amplifier is designed for robust operation in Automotive systems and can operate with a variety of power supplies and voltages.

The LTC6421CUDC-20#TRPBF is a powerful and reliable special purpose linear amplifier, specifically designed for robust operation in Automotive systems. Its integrated, system-level protection circuit, thermal management device, and buffered output ensure high speed AC and DC characteristics, high common-mode rejection, and low noise.

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