Comparator+Latch

Hi Giora,

I would like to know a little more about your design requirements. Are you looking for a comparator with a latch-enable pin? Or are you looking for a circuit that achieves a latched output state via external components?

Also, what are your desired specifications for the device? (Supply Voltage, push-pull output...etc.) 

Thanks,

Joe

Hi Joe,

Thanks.

I need a comparator that his output is latched  when its input reaches some threshold or has you stated :

 a circuit that achieves a latched output state via external components?.

Should work from 5V supply and it has open collector output.

Giora

This can be implemented with a comparator with a very large hysteresis. Just set the negative-going threshold to a negative value. For example, with a 5 V supply  and thresholds of 4 V and −1 V, you have to use equal resistors (R2/R1 = 1) and V_REF = 2 V.

Clements,

Can you send a sketch?

What comparator do you recommended?

Giora