on the output pin to interface correctly with digital logic. Isolation Voltage ( cap V sub i s o end-sub Rated for up to cap V sub r m s end-sub
This report analyzes the likelihood of a misidentification, proposes the most probable intended components (such as the or specific 4-pin optocouplers like the PC817), and provides datasheet specifications for these likely candidates. 1458 optocoupler datasheet
The search for a is a classic case of part number confusion. While the 1458 is a legendary dual op-amp, no mainstream optocoupler bears that exact label. However, by understanding the anatomy of a standard optocoupler datasheet (CTR, VISO, timing, and pinout) as exemplified by the 4N35 or PC817, you can effectively use any general-purpose optoisolator you encounter. on the output pin to interface correctly with digital logic
Since you cannot buy a "1458 optocoupler" by that name, here is your shopping list based on performance needs: While the 1458 is a legendary dual op-amp,
The output side contains a phototransistor that switches on when it detects IR light.
* Input side V_IN ----|>|----+---- R_IN ---- GND LED | | ( ) Pull‑up resistor R_PULL (10 kΩ) to V_CC | +----> V_OUT (collector) | ( ) Emitter to GND
