LME49990

[Orbit]

What would be the exactly the same LME49990 ?

[Davor]

3.14 Euro plus postage.

[Orbit]

Hello Davor where it has to buy LME49990 ?

[Davor]

You may always find them in mouser and go through hustle there, but most probably you have a Conrad representative in Serbia, see http://www.conrad.com/ce/en/product/...near-IC-SOIC-8 a little more expensive, but still quite reasonable. Try Tagor http://tagor.mycpanel.rs/tagor.rs/ta...d-distribucija
Farnell is more expensive, but many small distributors pick orders for them as well.

Right now LME49990 is optimal solution for MD front end, provided you take care of the feedback noise as well. Price is just right. It is primarily low distortion and noise is below 1nV/sqrt(Hz), hence the smaller resistor in feedback should not exceed 50ohm.

[sinclairuser]

they were available as samples, thats how i got 2, direct from texas instuments, but two is the limit.
any more and you have to buy multiples of 10, which is still not bad, and you know that a- every one will work, b- no fakes, also the price is good no added dealer costs.
setting up an account with texas instruments was the best thing i did, also microchip as well, people think you can only get samples or 1000's direct but its not true.

[Davor]

This is a good tip. Dealerships are usually complicated in this neck of the wood, so ordering directly could do the trick. Thanks.

[Orbit]

Thank you my friends

[Orbit]

Do you have double operational amplifier similar or identical characteristic as LME 49990 applications with 8 pins or the same AD 797 double ?