Hi Richard,
have you read section 2.2 of this appnote?
sloa277a.pdf
By the way, which LM324 are you using? The original LM324-N from National Semiconductors or the clone from TI?
Kai
Hello Ronald,
I will check your suggestion_ try adding a resistor from pin 7 to ground, 10k or less.
But it is an old board with PTH part, we will not modify it anymore from HW side.
Someone recommend LM358N nopb below, what's your idea? Can we…
Part Number: LM358 I have 100 LM358P Op Amps that are giving me different results with one or both outputs either flipping or not to the positive reference voltage. While the Op Amp will pass the basic test of negative switching to positive on both outputs…
Hi Stanley,
Please reference pages 8 and 9 on the tech note that I have attached for more information on ESD diode clamping. Additionally, you will not need to worry about phase inversion.
Regards,
Joe
snoaa35.pdf
Hi Charles,
I assume the spec you're more interested in is Input Bias Current and how your resistor divider on the front end could impact the accuracy of the comparator. Input Resistance is generally an older term used for our older parts.
It's important…
to User473,
I searched all the op amp portfolio with the parametric search (precision, general purpose, and high-speed). There are 6 options with temperatures of 150C and above (see attached). The best match is the OPA211-HT (210C max). This is the…