HMC980 Active Bias Controller High Current
HMC980 is an active bias controller that can automatically adjust the gate voltage of an external amplifier to achieve constant bias current. With an integrated controller, HMC980 achieves safe power on/ off, disable/enable and automatic supply sequencing ensuring the safety of the external amplifier. It can be used to bias any enhancement and depletion type amplifier operating in Class-A regime with drain voltages (VDRAIN) from 5V to 16.5V and drain currents (IDRAIN) up to 1.6 A, offering a complete biasing solution. HMC980 achieves excellent bias stability over supply, temperature and process variations, and eliminates the required calibration procedures usually employed to prevent RF performance degradation due to such variations.All data shown herein is taken with appropriate probes.
技术特性
- Automatic Gate Voltage Adjustment
(No Calibration Required)
- Supply Voltage: 5V to 16.5V
- Bias both Enhancement or Depletion type devices
- Adjustable Drain Current up to 1.6 A
- Sink or source gate current
- Internal negative voltage generation
• Can be disabled to use external negative rail
- Fast Enable/Disable
- Trigger-out Output for Daisy Chain
- Power-Up and Power-Down Sequencing
- Over/Under Current Alarm with built-in hysteresis
- Die Size: 1.4 x 2.26 x 0.25mm
应用领域 APPLICATION
- Microwave Radio & VSAT
- Military & Space
- Test Instrumentation
- Fiber Optic Modulator
Driver Biasing
- CATV Laser Driver Biasing
- Cellular Base Station
- Wireless Infrastructure Equipment
|
技术指标
| Supply Range (V) |
Function |
VDRAIN Range (V) |
IDRAIN Bias Current (mA) |
IGATE Drive Current (mA) |
VGATE Range (V) |
Over/Under IDRAIN Current Alarm |
Package |
| 5 - 16.5 |
Active Bias Controller |
5 - 16.5 |
50 - 1600 |
-4 to +4 |
-2.46 to +2.04 |
Yes |
Chip |
订购信息 Ordering Information
功能框图 Functional Block Diagram
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