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.
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RF Amplifiers Bias Controllers

RF Amplifiers Bias Controllers

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RF Amp Bias Controllers

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SortOrderPart#Power Primary FunctionVsupply (min)
(V)
Vsupply (max)
(V)
Vsupply Drain (min)
(V)
Vsupply 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
1HMC980-Die RF Amp Bias Controller 5 16.5 5 16.5 0.05 1.6 -4m 4m -2.46 2.04 Yes No
2HMC981-Die RF Amp Bias Controller 4 12 4 12 20m 200m -0.8m 0.8m -2.5 2 No No
3HMC920 RF Amp Bias Controller 5 16.5 3 15 0m 500m -4m 4m -2.5 2 Yes Yes
4HMC981LP3E RF Amp Bias Controller 4 12 4 12 20m 200m -0.8m 0.8m -2.5 2 No No
5HMC980LP4E RF Amp Bias Controller 5 16.5 5 16.5 0.05 1.6 -4m 4m -2.46 2.04 Yes No