Precision Analog Optocoupler
Precision Analog Optocoupler
Precision Analog Optocoupler
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
The optional output line driver can supply currents of up to 1/4 A. This can be<br />
used when the output is supplied to common 50 Ω loads. It includes an output integrator<br />
involving R21 and C15, which may be disabled by omitting C15 and replacing<br />
R21 by a 0 Ω short. The output integrator can improve output stability when driving<br />
some loads, especially reactive loads.<br />
The device provides a linear response with a transfer slope near unity which is<br />
partially limited by the matching of R1 and R2+R3. It is advisable to use high quality<br />
resistors. If trimming is not desired, one may omit R3 and short the pads with a 0 Ω<br />
resistor and use a precision pair for R1 and R2.<br />
Layout available at http://george.ph.utexas.edu/~ meyrath/papers<br />
Revisions: Version 2.1 Added protection diodes D4 to D8. Version 2.0 Added<br />
sum and subtraction options, output line driver option.<br />
2
Change language