Name: Low noise laser diode driver with modulation
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Low noise laser diode driver with modulation

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Koheron DRV200 drivers are ultra-low noise current drivers combining a very stable current bias with a ±1 V modulation input from DC to 5 MHz. Current bias can be set from 0 to 200 mA with a manual potentiometer. A jumper allows to choose between 3 modulation gains.

Laser current	0 - 40 mA	0 - 200 mA	0 - 400 mA
Supply voltage VS	5 V or 6 V	5 V or 6 V	5 V or 6 V
Compliance voltage 5V supply	2.8 V at 50 % current max., 1.8 V at current max.	2.8 V at 50 % current max., 1.8 V at current max.	2.8 V at 50 % current max., 1.8 V at current max.
Compliance voltage 6V supply	3.8 V at 50 % current max., 2.8 V at current max.	3.8 V at 50 % current max., 2.8 V at current max.	3.8 V at 50 % current max., 2.8 V at current max.
3 db modulation bandwidth	8 MHz	6 MHz	6 MHz
Current monitor gain	100 mV/mA (up to 40 mA)	20 mV/mA (up to 200 mA)	10 mV/mA (up to 400 mA)
Temperature coefficient	30 ppm/°C	30 ppm/°C	30 ppm/°C
RMS noise (10 Hz - 1 MHz)	65 nArms	255 nArms	530 nArms
Current noise density (1 kHz)	55 pA/√Hz	270 pA/√Hz	480 pA/√Hz
Current limit	48 mA (ILIM H), 32 mA (ILIM L)	240 mA (ILIM H), 160 mA (ILIM L)	480 mA (ILIM H), 320 mA (ILIM L)
Modulation gains	200 µA/V, 2 mA/V, 20 mA/V	1 mA/V, 10 mA/V, 100 mA/V	2 mA/V, 20 mA/V, 200 mA/V
Outside Dimensions	72 mm x 38 mm x 14 mm	72 mm x 38 mm x 14 mm	72 mm x 38 mm x 14 mm
Compatible lasers	Floating diodes	Floating diodes	Floating diodes

Laser current	0 - 40 mA	0 - 200 mA	0 - 400 mA
Supply voltage VS	5 V or 6 V	5 V or 6 V	5 V or 6 V
Compliance voltage 5V supply	2.8 V at 50 % current max., 1.8 V at current max.	2.8 V at 50 % current max., 1.8 V at current max.	2.8 V at 50 % current max., 1.8 V at current max.
Compliance voltage 6V supply	3.8 V at 50 % current max., 2.8 V at current max.	3.8 V at 50 % current max., 2.8 V at current max.	3.8 V at 50 % current max., 2.8 V at current max.
3 db modulation bandwidth	8 MHz	6 MHz	6 MHz
Current monitor gain	100 mV/mA (up to 40 mA)	20 mV/mA (up to 200 mA)	10 mV/mA (up to 400 mA)
Temperature coefficient	30 ppm/°C	30 ppm/°C	30 ppm/°C
RMS noise (10 Hz - 1 MHz)	65 nArms	255 nArms	530 nArms
Current noise density (1 kHz)	55 pA/√Hz	270 pA/√Hz	480 pA/√Hz
Current limit	48 mA (ILIM H), 32 mA (ILIM L)	240 mA (ILIM H), 160 mA (ILIM L)	480 mA (ILIM H), 320 mA (ILIM L)
Modulation gains	200 µA/V, 2 mA/V, 20 mA/V	1 mA/V, 10 mA/V, 100 mA/V	2 mA/V, 20 mA/V, 200 mA/V
Outside Dimensions	72 mm x 38 mm x 14 mm	72 mm x 38 mm x 14 mm	72 mm x 38 mm x 14 mm
Compatible lasers	Floating diodes	Floating diodes	Floating diodes