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 Amplifiers Bias Controllers

  Hold Shift Key for secondary sorting
SortOrderPart#RF 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)
Price (100-499)
($ US)
1AD7293 PA Drain Current Controller -4.5 5.5---- -10m 10m -4 10 $10.44 (AD7293BCPZ)
2HMC980LP4E PA Bias Controller 5 16.5 5 16.5 0.05 1.6 -4m 4m -2.46 2.04 $34.60 (HMC980LP4E)
3HMC980-Die PA Bias Controller 5 16.5 5 16.5 0.05 1.6 -4m 4m -2.46 2.04 $35.85 (HMC980)
4HMC981LP3E PA Bias Controller 4 12 4 12 20m 200m -0.8m 0.8m -2.5 2 $20.09 (HMC981LP3E)
5HMC981-Die PA Bias Controller 4 12 4 12 20m 200m -0.8m 0.8m -2.5 2 $21.02 (HMC981)
6HMC920 PA Bias Controller 5 16.5 3 15 0m 500m -4m 4m -2.5 2 $45.21 (HMC920LP5E)