General Description

The EL6257C is a high-performance four channel laser diode current amplifier that provides controlled current to a grounded laser diode.

Features

• High-performance laser diode driver

• Voltage-controlled output current

source to 150 mA per channel,

requiring one external set resistor

per channel

• Current-controlled output current

source to 150 mA per channel

• Rise time = 1.0 ns

• Fall time = 1.1 ns

• On chip oscillator with frequency

and amplitude control by use of

external resistors to ground

• Oscillator to 500 MHz

• Oscillator to 100 mA pk/pk

• Single +5V supply (±10)

• Current amplification = 100

• Disable feature for power-up

protection and power savings

• TTL/CMOS control signals

Applications

• DVD drives

• CD-RW applications

• Writable optical drives

• Laser diode current switching