ATLS500MA103 datasheet(8/11 Pages) ANALOGTECHNOLOGIES

Part #	ATLS500MA103

Description	Low Noise Constant Current Laser Controller

PDF	11 Pages

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Manufacturer	ANALOGTECHNOLOGIES [Analog Technologies, Inc.]

Direct Link	https://www.analogtechnologies.com/

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1161 Ringwood Ct, #110, San Jose, CA 95131, U. S. A. Tel.: (408) 748-9100, Fax: (408) 770-9187

www.analogtechnologies.com

Email: staff@analogti.com/sales@analogti.com

Analog Technologies

ATLS500MA106

Low Noise Constant Current Laser Controller

As shown in Figure 10, when a square wave of 0.1V~2.5V,

f = 100Hz, is applied to LIS, measure the waveform of LIO.

The rise and fall time should be about 1.5µs, the equivalent

bandwidth can be calculated by:

f = 0.35/trise = 0.35/1.5µs = 200kHz.

The above two methods can be applied to test if the

bandwidth is 200kHz.

In practice, the small signal bandwidth is usually much

higher than the large signal bandwidth.

3.5

4.5

5.5

1.5

2.5

3.5

IOUT=500mA

IOUT=400mA

IOUT=300mA

VLDA(V)

VVPS=5V

Figure 12. 1. VLDA vs. Output Current Noise@0.1Hz~10Hz

3.5

4.5

5.5

200

300

400

500

600

VLDA=3.6V

VLDA=2V

IOUT (mA)

VVPS=5V

Figure 12. 2. IOUT vs. Output Current Noise@0.1Hz~10Hz

ATLS500MA103 Datasheet(PDF) 8 Page - Analog Technologies, Inc.