Hi! I'm trying to source a replacement part for a board I didn't design. For some reason, a digital line driver was used by mistake. I'm not entirely sure what the originally intended IC was to be (the pcb is part of a break-out shield for a Bare Bones Arduino, with nine2A channels that drive various actuators and three sensor channels for control).
The incorrect chip is an 74HCT125N (quad buffer/line driver). One of the engineering consultants has suggested looking for a somewhat pin compatible quad op-amp and shorting the negative input to the output.
I'm not super-familiar with the pin-outs on op-amps, so I thought I'd see if I could find any recommendations. The datasheet for the line driver is up at:
The I/Os for the line driver are:1: 1oE: output Enable (inverted) 2: 1A: data in 3: 1Y: data out 4: 2oE: output Enable (inverted) 5: 2A: data in 6: 2Y: data out 7: GND
8: 3oE: output Enable (inverted)9: 3A: data in 10: 3Y: data out 11: 4oE: output Enable (inverted) 12: 4A: data in 13: 4Y: data out 14: Vcc
Any suggestions would be greatly appreciated!