I just spent ages on a simple part of my project using an Lm358 op amp, its just a voltage follower, on a dc signal from 0v to +10v, to buffer & divide this signal by 2.
Couldnt get the bloomin thing to work, it would perform ok, then as soon as the i/p of one of the amps on the ic went below 1.2V the o/p would saturate at +vcc, had this before on a 741 op amp which isnt spec'd to go to ground on the o/p unlike the Lm358 which does go to ground, with this in mind I tried a '358 I had salvaged and it works perfect so it looks like these I have are fakes.
Maybe I should have known better for a quid for 20 of the,.
Anyone else had anything like this?
Couldnt get the bloomin thing to work, it would perform ok, then as soon as the i/p of one of the amps on the ic went below 1.2V the o/p would saturate at +vcc, had this before on a 741 op amp which isnt spec'd to go to ground on the o/p unlike the Lm358 which does go to ground, with this in mind I tried a '358 I had salvaged and it works perfect so it looks like these I have are fakes.
Maybe I should have known better for a quid for 20 of the,.
Anyone else had anything like this?