HMC980LP4E

HMC980LP4E is an active bias controller that can automatically adjust the gate voltage of an external amplifier to achieve constant drain current. Using an integrated controller, this device allows safe power-up/power-down, and disable/enable of an external amplifier, ensuring the safe powering of the amplifier. This device can be used to bias any enhancement or depletion type class A amplifier operating with drain voltages from 5V to 16.5V and drain currents upto 1.6A. It allows stable RF amplifier biasing over supply, temperature, and process variations, and eliminates the required calibration procedures usually employed to prevent RF performance degradation due to variations in amplifier drain current. Includes application like microwave radio and very small aperture terminals (VSATs), military and space, test instrumentation, fibre optic modulator driver biasing, CATV laser driver biasing, cellular base station, wireless infrastructure equipment etc.

• Automatic gate voltage adjustment (no calibration)
• Bias enhancement or depletion mode devices
• Sink or source gate current
• Optional internal negative voltage generation
• Fast enable/disable
• TRIGOUT output for daisy chain
• Power-up and power-down sequencing
• Overcurrent/undercurrent alarm with hysteresis
• Operating temperature is -40°C to +85°C
• Package style is 24-lead QFN

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ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party