I N T R O D U C T I O N A N D S P E C I F I C A T I O N S
Specifications: LDX-3565
8
LDX-3500 Series
C H A P T E R
1
Specifications: LDX-3565
1. Stability specifications are measured at half-scale output, after a one hour warm-up period.
2. Extrapolated from resulting intensity fluctuations of a laser diode, measured optically with a 150 kHz bandwidth photodetector.
3. The instrument contains a circuit which will turn off the output if a transient is detected.
4. Maximum output current transients resulting from normal operational situations (e.g., power on-off) as well as accidental situations
(e.g., power line plug removal)
5. Maximum output current transients resulting from a 200 V power-line spike.
6. Specified values are a percent of nominal. Constant-power mode stability specification assumes zero drift in detector responsivity.
Current Source
2000 mA Range
6000 mA Range
Set Point Accuracy
+2 mA
+6 mA
Set Point Resolution
0.5 mA
1.5 mA
Compliance Voltage (fixed)
5 V maximum
5 V maximum
Temperature Coefficient
< 50 ppm/
o
C
< 100 ppm/
o
C
Stability
1
, for 1 hour
< 20 ppm
< 20 ppm
Stability
1
, for 24 hours
< 50 ppm
< 50 ppm
Noise and Ripple
2
High Bandwidth Mode
CW Mode
< 200
µ
A rms
< 50
µ
A rms
< 200
µ
A rms
< 50
µ
A rms
Worst Case Transients
3
Operational
4
Power-line induced
5
< 5 mA
< 10 mA
< 15 mA
< 40 mA
Photodiode Feedback
Range
0.01 to 25 mA
Output Stability
6
+0.02%
Set Point Accuracy
+25
µ
A
Bias Voltage
0 - 5 V reverse bias (+ 10%); adjustable on back panel
Power Modulation Bandwidth
1 kHz
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