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

www.analogtechnologies.com

Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 1/18/2022

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

1

Analog Technologies

ATLS500MA106

Low Noise Constant Current Laser Controller

Figure 1. Physical Photo of ATLS500MA106

FEATURES

°C

Complete Shielding

Compact Size

100 % Lead (Pb)-free and RoHS Compliant

DIP and SMT Packages Available

APPLICATIONS

Driving laser diodes with ultra low noise, including DPSSL,

EDFA, SOA, fiber laser, DSB diode lasers, etc.

DESCRIPTION

The ATLS500MA106 is an electronic module designed for

driving diode lasers with up to 500mA extra low noise

current. Figure 1 shows physical photo of ATLS500MA106.

The output voltage is 1.5V to 4V when powered by a 5V

power supply.

The controller has temperature compensation network so

that the output current maintains the same even as the

controller temperature rises.

In case the controller temperature exceeds a preset limit, 120

°C,

the controller will be shut down by itself to prevent the

controller from being damaged by the over heat.

The output current of the ATLS500MA106 can be set by an

input voltage linearly or modulated by an external signal of up

to 100kHz in bandwidth, resulting in a minimum 1.5μS rise

and fall times at the output current.

A highly stable low noise 2.5V reference voltage is provided

internally for setting the output current. This reference can also

be used as the voltage reference for external ADCs (Analog to

Digital Converters) and/or DACs (Digital to Analog

Converters) which are utilized for converting the analog signals,

such as LIO which represents the output current, into digital

signals, and/or converting the digital signals into analog ones

for setting the analog voltages, such as LIS which sets the

output current.

The ATLS500MA106 is packaged in a 6 sided metal enclosure,

which blocks EMIs (Electro-Magnetic Interferences) to prevent

the controller and other electronics from interfering each other.

This laser driver can be evaluated by our evaluation board,

ATLS1A103DEV1.0.

There are 2 packaging versions available: DIP through hole

package and surface mount type.

types of modules can only be soldered manually on the

board by a solder iron of < 310ºC (590ºF), not go through a

reflow oven process.

Figure 2. Pin Names and Locations

Figure 2 is the actual size top view of the ATLS500MA106,

which shows the pin names and locations. Its thickness is 5mm.

Table 1. Pin Function Descriptions

Pin #

Pin Name

Pin Type

Description

1

SBDN

Digital input

Shut down control. Negative logic. This pin has 3 states: between 0V ~ 0.4V, it shuts

down the entire laser driver; between 1.8V ~ 5.5V, it sets the laser driver to operation

mode. There is a pull up resistor of 100k connected to the VPS rail.

2

GND

Signal ground

Signal ground pin. Connect ADC and DAC grounds to here.

20

VPS

PGND

LDC

LDA

TMPO

LPGD

GND

2.5VR

LIMS

LIS

LIO

SBDN

1

3

4

5

6

2

12

10

9

8

7

11

14.5