Characteristics of Analog Optical Isolators
Analog Optoisolator Comparison Chart
Device
VTL5C1
VTL5C2
VTL5C2/2
VTL5C3
VTL5C3/2
VTL5C4
VTL5C4/2
VTL5C6
VTL5C7
VTL5C8
VTL5C9
VTL5C10
Material Type
1
Ø
Ø
3
3
4
4
Ø
7
Ø
1
4
Slope
15.0
24.0
20.0
20.0
19.0
18.7
8.3
16.7
5.7
8.0
7.3
3.8
Dynamic Range
100 db
69 db
65 db
75 db
71 db
72 db
68 db
88 db
75 db
80 db
112 db
75 db
Dark Resistance
50 MΩ
1 MΩ
1 MΩ
10 MΩ
10 MΩ
400 MΩ
400 MΩ
100 MΩ
1 MΩ
10 MΩ
50 MΩ
400 MΩ
Temperature
Coefficient
Very High
Low
Low
Very Low
Very Low
High
High
Low
Average
Low
Very High
High
Speed of
Response
Very Fast
Slow
Slow
Very Slow
Very Slow
Fast
Fast
Slow
Average
Slow
Very Fast
Fast
Light History
Effect
Very Large
Small
Small
Very Small
Very Small
Large
Large
Small
Average
Small
Very Large
Large
Specification Notes
(These notes are referenced on the following LED Vactrol Data Sheet pages.)
1
2
3
4
Since the input has a substantially constant voltage drop, a current limiting resistance is required.
Dark adapted resistance measured after 24 or more hours of no input.
Measured 10 sec. after removal of the input. The ultimate resistance is many times greater than the value at 10 seconds.
Ascent measured to 63% of final conductance from the application of 40 mA input. The conductance rise time to a specified value is
increased at reduced input drive while the conductance decay time to a specified value is decreased.
5
6
7
Typical matching and tracking from 0.4 to 40 mA is 25%.
Measured 5 sec. after removal of the input. The ultimate resistance is many times greater than the value at 5 seconds.
VTL5C9 response times are based on a 2.0 mA input. VTL5C10 response times are based on a 10.0 mA input for ascent time and
a 1.0 mA input for decay time.
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PERKINELMER [ PERKINELMER OPTOELECTRONICS ]
