Re: The Venerable 741

On 11/3/2024 1:33 PM, john larkin wrote:

On Sun, 03 Nov 2024 18:07:35 +0000, Cursitor Doom <cd@notformail.com>
wrote:
 

It's been around an awfully long time and there are far better
alternatives out there. But is there still a case for using them in
certain niche applications in 2024?

 I can't think of one. The design is 56 years old. It has its own
Wikipedia page.
 There are faster, cheaper, lower noise, lower bias current/offset RRIO
amps around these days.
 I remember the day when, still a kid in college, I decided to replace
LM709s with LM741s in a control system. The 741s were more expensive
(the cost of a pretty good lunch) but didn't need external
compensation parts or front-end-zener protection, and current limited.
 The early 741s had bad popcorn noise, but I'd expect that to be better
now.
 My default gumdrop amp is OPA197 now, in SOT23. It makes a good
comparator too. There are cheaper parts if you can tolerate low supply
voltages.
 

The TS27L4 is a good low-priced quad for high voltage (16V) applications, I still use the TL084 sometimes too
For low-voltage/low power the OPA4322 has impressive performance for the price:
<https://www.mouser.com/ProductDetail/Texas-Instruments/OPA4322A>
For audio the NE5532 is still a go-to.
The LT1723 for voltage feedback and LT1396 for CF are my high-speed jellies