Analog Technologies ATLS200MA103 Manual

Analog Technologies
Figure 1. Physical Photo of ATLS200MA103S
FEATURES
Ultra Low Noise: <2μA*
High Current without Heat Sink: 200mA
High Absolute Accuracy: <0.1%
High Stability: <100ppm/°C
Dual Modulation Ports: High and Low Speed
Complete Shielding
Compact Size
100 % Lead (Pb)-free and RoHS Compliant
DIP and SMT Packages Available
*Total RMS between 0.1Hz to 0.5MHz.
APPLICATIONS
Driving laser diodes with low noise, including DPSSL,
EDFA, SOA, fiber laser, direct diode lasers, etc.
DESCRIPTION
The ATLS200MA103 is an electronic module designed for
driving diode lasers with up to 200mA low noise current.
Figure 1 shows physical photo of ATLS200MA103.The
output voltage is 1.5V to 4V when powered by a 5V power
supply.
When the maximum power consumed by the controller is
maintained to <1W, it does not require a heat sink to operate.
The controller has temperature compensation network so
Table 1. Pin Function Descriptions
Pin # Pin Name Pin Type
1 SDN Digital input
2 GND Signal ground
2352 Walsh Ave. Santa Clara, CA 95051. U. S. A. Tel.: (408) 748-9100, Fax: (408) 748-9111
Copyrights 2000-2015, Analog Technologies, Inc. All Rights Reserved. Updated on 8/10/2015
Low Noise Constant Current Laser Controller
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 shutdown by itself to prevent the
controller from being damaged by the over heat.
The output current of the ATLS200MA103 can be set by an
input voltage linearly or modulated by an external signal of up
to 2MHz in bandwidth, resulting in a minimum 1μS 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 ATLS200MA103 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.
There are 2 packaging versions available: DIP through hole
Warning
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 is the actual size top view of the ATLS200MA103,
which shows the pin names and locations. Its thickness is 5mm.
Table 1 shows the pin function descriptions.
For ATLS200MA103: Shut down control. Negative logic. When the voltage is <0.7V,
shutdown on; when the voltage is >1 V, shutdown off.
For ATLS200MA103-PD: Shut down control. Positive logic. When the voltage is
<0.7V, shutdown on; when the voltage is >1 V, shutdown off. There is a pull-down
resistor of 100K to the ground.
Signal ground pin. Connect ADC and DAC grounds to here.
ATLS200MA103
package and surface mount type.
: Both the surface mount and the through hole
1
12
SDN VPS
2 11 PGND
GND
2.5VR 3 10 LDC
LILM 4 9 LDA
LIS 5 8 TMPO
LIO 6 7 LPGD
14.5
Figure 2. Pin Names and Locations
Description
www.analogtechnologies.com
www.analogti.com
20
1