RF Amplifiers Bias Controllers

RF amplifier bias controllers generate 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 amplifier operating in Class-A regime with drain voltages (VDRAIN) as specified. These devices achieve 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.
Product Selection Table

RF Amp Bias Controllers

  Hold Shift Key for secondary sorting
SortOrderPart#Power Primary FunctionVs+ (min)
(V)
Vs+ (max)
(V)
Vs Drain (min)
(V)
Vs Drain (max)
(V)
Idrain (min)
(A)
Idrain (max)
(A)
Igate Drive (min)
(A)
Igate Drive (max)
(A)
Vgate (min)
(V)
Vgate (max)
(V)
Over/Under Idrain AlarmLow Vsupply Alarm
1HMC980LP4E RF Amp Bias Controller 5 16.5 5 16.5 0.05 1.6 -4m 4m -2.46 2.04 Yes No
2HMC980-Die RF Amp Bias Controller 5 16.5 5 16.5 0.05 1.6 -4m 4m -2.46 2.04 Yes No
3HMC981LP3E RF Amp Bias Controller 4 12 4 12 20m 200m -0.8m 0.8m -2.5 2 No No
4HMC981-Die RF Amp Bias Controller 4 12 4 12 20m 200m -0.8m 0.8m -2.5 2 No No
5HMC920 RF Amp Bias Controller 5 16.5 3 15 0m 500m -4m 4m -2.5 2 Yes Yes