INTRODUCTION TO THE LDX-3200 SERIES CHPT 1
PAGE 7
LDX-3200 SERIES SPECIFICATIONS
Laser Current Source Specifications
Model Number LDX-3210 LDX-3220
DRIVE CURRENT OUTPUT
1
Output Current Range: 0 to 50 mA 0 to 100 mA 0 to 200 mA 0 to 500 mA
Set-Point Resolution: 1 µA 2 µA 4 µA 10 µA
Set-Point Accuracy (% of FS):
0.05%
0.05%
0.05%
0.05%
Compliance Voltage: 0 - 10 V, 0 - 10 V, 0 - 10 V, 0 - 10 V,
adjustable adjustable adjustable adjustable
Temperature Coefficient: <50 ppm/°C <50 ppm/°C <50 ppm/°C <50 ppm/°C
Short-Term Stability (1 hr.):
2
<10 ppm <10 ppm <10 ppm <10 ppm
Long-Term Stability (24 hr.):
3
<20 ppm <20 ppm <20 ppm <20 ppm
Noise and Ripple (
A rms)
4
High Bandwidth Mode: <1.5
A <1.5
A <4
A <4
A
Low Bandwidth Mode: <1.5
A <1.5
A <2
A <2
A
Transients
Operational:
5
<1 mA <1 mA <1 mA <1 mA
1kV EFT/Surge:
6
<5 mA/< 8 mA <5 mA/< 8 mA <8 mA/< 12 mA <8 mA/< 12 mA
COMPLIANCE VOLTAGE ADJUST
Range: 0 - 10 V 0 - 10 V 0 - 10 V 0 - 10 V
Resolution: 50 mV 50 mV 50 mV 50 mV
Accuracy:
2.5%
2.5%
2.5%
2.5%
DRIVE CURRENT LIMIT SETTINGS
Range: 1 to 50.5 mA 1 to 101 mA 1 to 202 mA 1 to 505 mA
Resolution: 0.25 mA 0.5 mA 1 mA 2.5 mA
Accuracy:
0.5 mA
1 mA
2 mA
5 mA
PHOTODIODE FEEDBACK
Type: Differential Differential Differential Differential
PD Reverse Bias : 0 - 5V, adjustable 0 - 5V, adjustable 0 - 5V, adjustable 0 - 5V, adjustable
PD Current Range : 5 to 5000 µA 5 to 5000 µA 5 to 5000 µA 5 to 5000 µA
Output Stability:
7
0.02%
0.02%
0.02%
0.02%
Accuracy, set point (% of FS):
0.05%
0.05%
0.05%
0.05%
EXTERNAL ANALOG MODULATION
Input: 0-10V, 10kΩ 0-10V, 10kΩ 0-10V, 10kΩ 0-10V, 10kΩ
Transfer Function: 5 mA/V 10 mA/V 20 mA/V 50 mA/V
Bandwidth (3 dB)
High Bandwidth:
8
DC to 1 MHz DC to 1 MHz DC to 1 MHz DC to 1 MHz
Low Bandwidth:
9
DC to 15 kHz DC to 15 kHz DC to 15 kHz DC to 15 kHz
TRIGGER OUTPUT
Type: TTL TTL TTL TTL
Pulse Width: 13 µS 13 µS 13 µS 13 µS
Delay: 12 mS 12 mS 12 mS 12 mS
MEASUREMENT (DISPLAY)
Output Current Range: 0 to 50.000 mA 0 to 100.00 mA 0 to 200.00 mA 0 to 500.00 mA
Output Current Resolution: 0.001 mA 0.002 mA 0.01 mA 0.01 mA
Output Current Accuracy:
0.05% FS
0.05% FS
0.05% FS
0.05% FS
Photodiode Current Range: 0 to 5,000
A 0 to 5,000
A 0 to 5,000
A 0 to 5,000
A
Photodiode Current Resolution: 1
A 1
A 1
A 1
A
Photodiode Current Accuracy:
2
A
2
A
2
A
2
A
PD Responsivity Range:
10
0.00 to 1000.00 µA/mW 0.00 to 1000.00 µA/mW 0.00 to 1000.00 µA/mW 0.00 to 1000.00 µA/mW
PD Responsivity Resolution: 0.01 µA/mW 0.01 µA/mW 0.01 µA/mW 0.01 µA/mW
Optical Power Range: 0.00 to 101.00 mW 0.00 to 101.00 mW 0.00 to 505.00 mW 0.00 to 505.00 mW
Optical Power Resolution: 0.01 mW 0.01 mW 0.01 mW 0.01 mW
Forward Voltage Range: 0.000 to 10.000 V 0.000 to 10.000 V 0.000 to 10.000 V 0.000 to 10.000 V
Forward Voltage Resolution: 1 mV 1 mV 1 mV 1 mV
Forward Voltage Accuracy:
11
±2 mV ±2 mV ±2 mV ±2 mV
1 All values relate to a one-hour warm-up period.
2 Over any 1-hour period, half-scale output.
3 Over any 24-hour period, half-scale output.
4 Measured optically, evaluating noise intensity of a laser diode into a photodectector with 150 kHz bandwidth. Request ILX Application Note #3.
5 Maximum output current transient resulting from normal operational situations (e.g., power on-off, current on-off), as well as accidental situations (e.g., power line plug
removal).
6 Maximum output current transient resulting from a 1000 V power-line transient spike. Tested to ILX Lightwave Technical Standard #LDX-00196. Request ILX Application Note
#3.
7 Maximum monitor photodiode current drift over any 30 minute period. Assumes zero drift in responsivity of photodiode.
8 300 mA set point, 60 mA modulation current.
9 Small signal specification is for typ. 10% modulation depth. Large signal spec. assumes 50% modulation depth at mid-scale output.
10 Responsivity value is user-defined and is used to calculate the optical power.
11 Four wire voltage measurement at the load. Voltage measurement accuracy while driving calibration load. Accuracy is dependent upon load and cable used.
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