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LM387N PDF Datasheet浏览和下载
There are other things that usually are associated with it which is good to appear on the data sheet, for example input beyond the rails or rail to rail output, or one rail inside or close to the output range which are useful to know, but single supply, dual supply?
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Agree that ‘ should be your go-to in this case. Everything you listen to has been through multiple ‘s.
This is an audio circuit. But two 10K resistors and a 47u cap do the same. Some unbalance at input impedance but nothing to be alarmed for your application, as input device may not be so cool.
Nov 27, THD at 60dB gain 0.
Hi, I started planning a mod on my old console and I wanted to find an IC opamp that can run on a single supply voltage It is made to drive one 10K volume control in the same box, not long wires, multiple loads, etc. Ask a related question What is a related question?
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Ask a related question Ask a new question. No license, either express or implied, by estoppel or otherwise, is granted by TI. Then, always, in “low distortion” audio applications “” because we are not trying to archive 0. The LMN has been obsoleted. Sorry for not replying back after I started this thread.
LMN | NATIONAL SEMICONDUCTOR (TI) | DATASHEET | PHOTO
JohnRoberts on September 06, Due to the holidays, responses may be delayed. If you have a related question, please click the ” Ask a related question ” button in the top right corner. It also has sad output power. Any lm387h would be appreciated. I haven’t seen many designs using it?
LMN Datasheet PDF – National ->Texas Instruments
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This reduces bias resistor noise contribution, allows easy single supply operation with fewer components, and provides excellent PSRR. It was an OK part for back then, but I am surprised they still sell them. TI, its suppliers and providers of content reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.
The LM has a different pin-out not normally dataseet with dual datasheey – so any board layouts would have to change. Thanks for your wise replies! The main concern is that the circuit itself should need no changing with the replacement. If you have further questions related to this thread, you may click “Ask a related question” below.
You dtaasheet have to modify your existing circuit a bit by adding a blocking cap or a few bias resistors to use a “normal” op-amp. I never understood quite well the single supply thing on opamps, usually your opamps don’t refer anything to ground, I mean, there isn’t any pin from it connected to ground, so it knows if it has a dual or single rails. Let’s look the data sheet, if it looks right there it’s time to breadboard. LM is a penny easier because it has a bias voltage built-in, so you can set the output around half-supply.
I’m an enthusiast without proper background education in electronics so I’m chewing this slowly.