LMH6723MAX

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LMH6723MAX Application Field and Working Principle

LMH6723MAX is a high-performance instrumentation amplifier with excellent noise and distortion specifications. It is designed for use in professional audio applications, particularly when driving low-impedance loads. The device is a member of the Linear-Amplifiers-Instrumentation, OP Amps and Buffer Amp family of products.

Features of LMH6723MAX

• Ultra-low noise: 0.37nV/√Hz
• Ultra-low distortion: -125dB, 0.0025%
• High common-mode rejection ratio (CMRR): >140dB
• High slew rate: >25V/µs
• High input impedance: >50kOhms
• Low output impedance: < 300mOhms
• High gain linearity error: 0.2dB

Applications of LMH6723MAX

The LMH6723MAX is ideal for a wide range of professional audio applications, including studio recording, professional sound reinforcement, broadcast, sound reinforcement and other applications requiring low distortion, low noise and precise control. In addition, it can be used as a preamplifier for condenser microphones, line level input and output amplifiers, headphones and other low-level signal conditioning equipment.

LMH6723MAX Working Principle

The LMH6723MAX is an instrumentation amplifier with a high CMRR (common mode rejection ratio). The device operates in a unique low-noise mode, utilizing the low-noise input transistors to achieve the lowest possible noise output.

The amplifier is configured with both a source-following gain stage and a buffered-input stage. The source-following stage provides a high gain range, minimizes distortion and provides a low output impedance. The buffered-input stage provides additional gain and a high input impedance.

The output of the device consists of a feedback network which allows the user to control gain, frequency response, signal-to-noise ratio (SNR) and total harmonic distortion (THD). The feedback network is adjustable and can provide gain of up to 40dB.

The LMH6723MAX is protected against reverse polarity and over-voltage conditions. It can be powered from 8-24V DC.

Conclusion

The LMH6723MAX is a high-performance instrumentation amplifier with excellent noise and distortion specifications. It is designed for use in professional audio applications, particularly when driving low-impedance loads. The device provides ultra-low noise, ultra-low distortion, high CMRR, high slew rate, high input impedance and low output impedance. In addition, the device is protected against reverse polarity and over-voltage conditions.

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