资 源 简 介
The EL6272C is a single channel laser diode current amplifier that provides controlled current to a grounded laser diode. The amplifier can provide up to 200 mA of DC or pulsed current with switching speeds of approximately three nanoseconds rise/fall TIme. The level of the output current is set by an analog voltage applied to an external resistor which converts the voltage into a current at the IIN pin (virtu- ally ground). The current seen at this pin is then amplified by 100X to become a current source at pin IOUT. An on-chip 500 MHz oscillator is provided to allow current modula- TIon when in read mode. This is turned on when the OSCEN pin is held high. Complete control of amplitude and frequency is set by two exter- nal resistors connected to ground at pins RFREQ and RAMP (see graphs in this data sheet for further explanaTIon).
