Searching \ for '[PIC]: On-chip comparators as schmitt triggers' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/microchip/devices.htm?key=pic
Search entire site for: 'On-chip comparators as schmitt triggers'.

Exact match. Not showing close matches.
PICList Thread
'[PIC]: On-chip comparators as schmitt triggers'
2001\12\13@043153 by Andrew Crosland

flavicon
face
Hi,

I want to use a comparator in an F628 in mode 6 with comparator outputs
available off-chip. I intend to use the usual resistor network to add
hysteresis to the comparator and use it as a schmitt trigger.

Has anyone done this?

Any problems in using the on-chip comparators in this mode?

Will the PIC I/O on the comparator affect the calculations for hysteresis?

Regards

Andrew Crosland

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads


2001\12\13@051014 by Vasile Surducan

flavicon
face
I think that using hysteresis on any comparator is almost every time
necessary. Comparator have a large offset, about  20mV, is a pour one.
I dont see any reason to not work. Internal port resistence can't affect
too much the hysteresis computation. Large hysteresis, small errors.

Vasile

On Thu, 13 Dec 2001, Andrew Crosland wrote:

{Quote hidden}

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads


More... (looser matching)
- Last day of these posts
- In 2001 , 2002 only
- Today
- New search...