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From : Dmitry Snezhko 2:5030/41.50 Втр 18 Мар 97 10:45
To : All Втр 18 Мар 97 23:03
Subj : оптореле
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Пpивет All!
The CNR200 and CNR201 are high linearity opto-isoliators consisting of high
perfomance AlGaAS LED which illuminates two closely matched photodiodes. The
secondary photodetector diode can be used to monitor, and therefore stabilize,
the light output of the emitter LED virtually eliminating the non-linearity and
drift characteristics of the LED. This technique compensates for the LED's
non-linear time and temperature characteristics.
Feature include:
-Low non-linearity 0.01%
-Couples both a.c. ans d.c signals
-Transfer gain tolerance CNR200+-15%; CNR201+-5%
Typical applications include: SMPS feedback loops, monitoring motor voltage,
thermocouple isolator, transducer isolator and 4mA to 20mA loop isolator.
Technical Specification
Emmiter
Forward voltage (typ.) 1.6V
Forward current 1-20mA
Reverse voltage (max.) 2.5V
Detector
Dark current (typ.) 0.5nA
Coupled characteristics
Transfer gain linearity (typ.) 0.01%
Transfer gain linearity CNR200(max.) 0.25%
Transfer gain linearity CNR201(max.) 0.05%
Transfer gain CNR200(min.-max.) 0.85-1.15
Transfer gain CNR201(min.-max.) 0.95-1.05
Max. input power dissipation 60mW
Bandwidth (typ.) 1.5MHz
Withstand test voltage (max.) 5000V r.m.s.
Operating temperature range -55 to +100 grad.C
С уважением
, Dmitry.
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* Origin: (2:5030/41.50)
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