EL4390
Triple 80MHz Video Amplifier with DC Restore
Not Recommended for New Designs.Contact our Technical Support Center at 1-888-INTERSIL.
Typical Diagram

Key Features
- 80MHz -3dB bandwidth for gains of 1 to 10
- 800V/µs slew rate
- 15MHz bandwidth flat to 0.1dB
- Excellent differential gain and phase
- TTL/CMOS compatible DC restore function
- Available in 16-pin PDIP, 16-pin SOL
Description
The EL4390 is three wideband current-mode feedback amplifiers optimized for video performance, each with a DC restore amplifier. The DC restore function is activated by a common TTL/CMOS compatible control signal while each channel has a separate restore reference. Each amplifier can drive a load of 150Ω at video signal levels. The EL4390 operates on supplies as low as ±4V up to ±15V.
Being a current-mode feedback design, the bandwidth stays relatively constant at approximately 80MHz over the ±1 to ±10 gain range. The EL4390 has been optimized for use with 1300Ω feedback resistors.
Applications
- RGB drivers requiring DC restoration
- RGB multiplexers requiring DC restoration
- RGB building blocks
- Video gain blocks requiring DC restoration
- Sync and color burst processing

