MAX4472ESD

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MAX4472ESD Application Field and Working Principle

The MAX4472ESD from Maxim Integrated is a low power, wide bandwidth (1GHz) power amplifier designed for per channel applications. It is a linear amplifier that operates from a single 3V supply and delivers an output voltage swing of up to 20Vpp. The MAX4472ESD is an ideal solution for mobile devices audio, TV and radio head end, feature phone and low IF radio applications.

Product Features

• Operates from 3V single supply with ±2.5V output voltage swing
• 1GHz -3dB bandwidth
• 575mVpp differential gain, 450mVpp common-mode gain
• Low power consumption: 40mA/channel active, 2.2mA/channel shutdown
• Integrated thermal shutdown circuit
• Integrated ESD and surge protection
• Small, low-profile, space-saving package

Applications

• Portable audio systems
• Mono and stereo color TVs
• Mono and stereo VCRs
• TV tuners
• Car radios
• Portable navigation systems

Working Principle

The MAX4472ESD is an integrated power amplifier with integrated high voltage protection and ESD protection. The amplifier has a differential output stage with adjustable common-mode level. The high common-mode level is set by an external resistor, while the differential mode level is set by an internal resistor. The input sign

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