HMC981LP3E

HMC981LP3E is an active bias controller that automatically adjusts the gate voltage of an external amplifier to achieve a constant bias current. It can be used to bias any enhancement and depletion type amplifiers operating in Class-A regime with Drain voltages from 4V to 12V and drain currents up to 200mA, offering a complete biasing solution. This achieves excellent bias stability over supply, temperature and process variations, and eliminates the required calibration procedures usually employed to prevent RF performance degradation due to such variations. Typical application includes microwave radio and VSAT, military and space, test instrumentation, fibre optic modulator driver biasing, CATV laser driver biasing, cellular base station, wireless infrastructure equipment.

• Automatic gate voltage adjustment (no calibration required)
• Supply voltage range from 4 to 12V (TA = +25°C, VDD=8V, VDIG= 3.3V)
• Digital voltage range from 3.3V to 5V
• Controls both enhancement and depletion type devices
• DRAIN current adjustment range 80 to 200mA (SW=VDIG, TA = +25°C, VDD=8V, VDIG= 3.3V)
• Sink/source gate current capability
• Fast enable/disable
• Trigger-out output for daisy chain power-up and power-down sequencing
• Oscillator frequency is 300KHz (typ, TA = +25°C, VDD=8V, VDIG= 3.3V)
• 16 lead QFN package, operating temperature range from -40 to +85°C

Poznámky

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