Part Number: LF347-N Other Parts Discussed in Thread: LF347 , LM324 , TL3474 We are replacing obsolete part MC34074P with the pin for pin TI part LF347N/NOPB in the attached circuit. Are there different operational amplifier formulas available to control…
Hiroshi-san,
Many devices were changed including LF347-N. LF412 was chosen as sample device from that group of devices changed. The LF347 (and LF412) uses a BIFET process before and after the change. The QBS device in table means a different device…
Hello Mikyung,
It is similar, but input capacitance for the TL082/TL084 is a little higher than the LF347-N or LF353-N (the -N matters here)
Cp = 5.5pF (non inverting pin to ground)
Cn = 7pF (inverting pin to ground)
Cd = 4pF (inverting to non…
Richard,
I believe the capacitance will be the same as LF347-N (quad) two samples.
Cp is noninverting capacitance (to GND)
Cn is inverting capacitance (to GND)
Cd is input to input capacitance.
LF347
LF347
Cp
3.3 pF
3.4 pF…
Other Parts Discussed in Thread: LF398-N , LF356 , LF347-N Hi Sir,
I have searched the TI library for Eagle 6.1 to get the footprint of LF398N smd package. I even searched the TI library offered by Element14 . Even then, I couldn't find out the footprint…
to User473,
I searched all the op amp portfolio with the parametric search (precision, general purpose, and high-speed). There are 6 options with temperatures of 150C and above (see attached). The best match is the OPA211-HT (210C max). This is the…
Hey Dan,
LM120K-5.0/883 is indeed obsolete. I've attached the PDN.
We don't have an exact P2P replacement so I'd recommend the UA79 series as the closest alternatives.
~ Aaron
PDN 200824.pdf
