HMC980LP4E Overview
Description
The HMC980LP4E is an active bias controller that can automatically adjust the gate voltage of an external amplifier to achieve constant drain current. Using an integrated controller, the HMC980LP4E allows safe power-up/power-down, and disable/enable of an external amplifier, ensuring the safe powering of the amplifier.
Key Features
- Automatic gate voltage adjustment (no calibration)
- Supply voltage (5 V to 16.5 V)
- Bias enhancement or depletion mode devices
- Adjustable drain current up to 1.6 A
- Sink or source gate current
- Optional internal negative voltage generation
- Fast enable/disable
- TRIGOUT output for daisy chain
- Power-up and power-down sequencing
- Overcurrent/undercurrent alarm with hysteresis
