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21

LDD P SERIES LASER DIODE DRIVER

PERFORMANCE GRAPHS

TesT seTuP

The wiring diagram for testing setup is shown in

Figure 35 below. The Timing Characteristics (page 6) and the Typical

Performance Graphs (

page 22 and page 23) data were taken using this setup.

CURRENT

FEEDBACK

LASER DIODE

DRIVER

CURRENT

MONITOR

MOD

GND

1

2

3

4

V+

5

6

7

8

FEED

BACK

LD ANODE

LD

CATHODE

V+

LDD 1P Models

- +

TEST LOAD

CURRENT

FEEDBACK

LASER DIODE

DRIVER

CURRENT

MONITOR

MOD

GND

1

2

3

4

V+

5

6

7

8

FEED

BACK

LD

CATHODE

LD

ANODE

0.1 µF

V+

LDD 2P Models

- +

V+

+

-

10kΩ

10kΩ

10kΩ

10kΩ

0.1 µF

RAIL TO

RAIL OUTPUT

OPAMP

1/2 AD8032

Silicon Diode

(1N4001)

Silicon Diode

(1N4001)

1Ω

TEST LOAD

Silicon Diode

(1N4001)

Silicon Diode

(1N4001)

1Ω

Switch

OPEN

CLOSED

Output

Off

On

Switch

OPEN

CLOSED

Output

Off

On

Figure 35. Testing setup used for Timing Characteristics and Performance Graphs.