The HMC920LP5E is an Active Bias Controller which generates a regulated Drain voltage and actively adjusts the gate voltage of an external amplifier to achieve constant bias current. It can be used to bias any enhancement and depletion type amplifiers operating in Class-A regime. HMC920LP5E achieves excellent bias stability over supply, temperature and process variations and eliminates the required calibration procedures used to prevent RF performance degradation due to such variations.
● Adjustable drain voltage 3 to 15V
● Adjustable drain current up to 500mA
● Internal negative voltage generator
● Active bias current regulation
● Stable bias current over temperature and process variation and aging
● Short circuit protection (power foldback)
● Adjustable over/under-current alarm
● Adjustable low vdd voltage alarm
● Automated power-up sequencing
● Enable input for active bias control
● Trigger-out output for daisy chain power-up and power-down sequencing
