The UTC LM is a precision, high speed, high gain operational amplifier that has been specifically designed for use in high slew rate and wide bandwidth. Page 1. Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8. LMP Datasheet, LMP PDF, LMP Data sheet, LMP manual, LMP pdf, LMP, datenblatt, Electronics LMP, alldatasheet, free, datasheet.
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The proposed follower would have a high current gain. I am sure with the new opamps, you can design without using those transistors. Then you have a wide selections of better opamps. Its a phono preamp from a radio station.
It works very well- I built one years ago. Things I usually look for audio opamps are: Products conform to specifications per the terms of Texas Instruments standard warranty. Why is the white lead connected to the – input? The was a high performance chip in its dayBGW use them in their products extensively.
I’ve got a phono preamp with a bad LM P. Even if I crank up the power supply of LM to 20v – the speakers volume doesn’t increase.
This unit has two of these, so I’d lm318; both. Do you already have an account? The LM is not designed to drive the speaker directly.
You have to use theso just go buy another. Been to Linear Tech to show how their ADC fails, two of the app circuit on switching regulator oscillate. LM is a typical BJT Op Amp with 33 Ohm output impedance and current limited to 20mA with internal Vbe drop but reducing gain from 1k to 1 also lowers output impedance but it is still current limited to about 0. I don’t necessary think just because it’s in their application notes, then it’s a good circuit.
If the is used with a discrete front end, as they do in the old app notes, you can’t just put another opamp in there.
LM is a very old opamp, it is fast, but I don’t think you need this fast for audio. Overcompensation can be used with the amplifier for greater stability ,m318p maximum bandwidth is not needed.
Been challenging the app engineer more than a few times in those semi conductor companies. It is designed for audio applications. You show three wires there. But the problem is, it’s amplification level appears to be only a factor of 6x. lm381p
LM from Texas Instruments
I can see that the amplifier is actually amplifying, if I compare the strength of the input voltage versus the output voltage. Michael George 1, 8 34 The actual current gain is roughly the HFE of your transistors. Most come as dual. ConradHJun 12, Since it’s still available, and cheap, I would go with the original. It is a very powerful IC, and easy to use and requires few components. An LM is not an audio power amplifier.
Email Required, but never shown. AlanJun 11, This is at the input stage of the preamp, so low noise would be a priority.