Pax Writer
New Member
Hi Guys
I just submitted a request for a pin-compatible replacement for the 74HC7541 over in the datasheet-forum, but now it occurs to me that really I need a creative piece of advice.
The thing is, that I have eight analogue signals which are supposed to trigger an interrupt on my AVR-processor. They are, however, a bit weak, so on my prototype PCB, I buffered each of them with a 74HC7541 gate.
I think it would be better to use an opamp configured as a comparator, but I have already the 2x10 pin DIP footprint from the '7541. Any good (creative) ideas how to replace that IC with op-amps for the eight signals?
Need info? Ask away and I'll answer.
Analogue in:
Low signal = 0.2V
High signal = (to be) ~1V
Digital(ish) out:
Low signal = 0-0.1V
High signal = 3-5V
Thanks in advance.
/Pax
I just submitted a request for a pin-compatible replacement for the 74HC7541 over in the datasheet-forum, but now it occurs to me that really I need a creative piece of advice.
The thing is, that I have eight analogue signals which are supposed to trigger an interrupt on my AVR-processor. They are, however, a bit weak, so on my prototype PCB, I buffered each of them with a 74HC7541 gate.
I think it would be better to use an opamp configured as a comparator, but I have already the 2x10 pin DIP footprint from the '7541. Any good (creative) ideas how to replace that IC with op-amps for the eight signals?
Need info? Ask away and I'll answer.
Analogue in:
Low signal = 0.2V
High signal = (to be) ~1V
Digital(ish) out:
Low signal = 0-0.1V
High signal = 3-5V
Thanks in advance.
/Pax