Post by thread:[EE] 5V rail-to-rail dual op-amps

Good day to all I'm in the middle of the re-design of an older project that used LF353 dual op-amps. The LF353 worked well in the previous unit but I am changing to a single 5V rail rather than the bipolar supply used previously. Does anyone have a favorite dual op-amp in an 8 pin DIP package that does rail-to-rail on both input and output from a single 5V rail? FET input Rail-to-rail on input with 5V supply Rail-to-rail on output Dual op-amps in 8 pin DIP package better than 1 MHz GBW better than 10V / us slew rate input offset better than 10 mV Thanks for any suggestions! dwayne -- Dwayne Reid <spam_OUTdwaynerTakeThisOuTplanet.eon.net> Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 21 years of Engineering Innovation (1984 - 2005) .-. .-. .-. .-. .-. .-. .-. .-. .-. .- `-' `-' `-' `-' `-' `-' `-' `-' `-' Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email.

{Quote hidden}>-----Original Message----- >From: .....piclist-bouncesKILLspam@spam@mit.edu [piclist-bouncesKILLspammit.edu] >Sent: 28 June 2005 04:27 >To: pic microcontroller discussion list >Subject: [EE] 5V rail-to-rail dual op-amps > > >Good day to all > >I'm in the middle of the re-design of an older project that >used LF353 dual >op-amps. The LF353 worked well in the previous unit but I am >changing to a >single 5V rail rather than the bipolar supply used previously. > >Does anyone have a favorite dual op-amp in an 8 pin DIP >package that does >rail-to-rail on both input and output from a single 5V rail? > >FET input >Rail-to-rail on input with 5V supply >Rail-to-rail on output >Dual op-amps in 8 pin DIP package >better than 1 MHz GBW >better than 10V / us slew rate >input offset better than 10 mV > > >Thanks for any suggestions! > >dwayne Have a look at Microchips offerings. They make some pretty decent spec op-amps for very reasonable prices. The main limiting factor is the maximum supply voltage of around 5.5volts for mosts (a few are 10v). The MCP6002 is the cheapest device that would seem to suit your needs http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1335&dDocName=en010434 Regards Mike ======================================================================= This e-mail is intended for the person it is addressed to only. The information contained in it may be confidential and/or protected by law. If you are not the intended recipient of this message, you must not make any use of this information, or copy or show it to any person. Please contact us immediately to tell us that you have received this e-mail, and return the original to us. Any use, forwarding, printing or copying of this message is strictly prohibited. No part of this message can be considered a request for goods or services. =======================================================================

>I'm in the middle of the re-design of an older project that >used LF353 dual op-amps. The LF353 worked well in the >previous unit but I am changing to a single 5V rail rather >than the bipolar supply used previously. > >Does anyone have a favorite dual op-amp in an 8 pin DIP >package that does rail-to-rail on both input and output >from a single 5V rail? I have used the LMC6482 in SMD form as a substitute for TL062.

TLC272? TLC2272? On 27 Jun 2005 at 21:26, Dwayne Reid wrote: {Quote hidden}> Good day to all > > I'm in the middle of the re-design of an older project that used LF353 dual > op-amps. The LF353 worked well in the previous unit but I am changing to a > single 5V rail rather than the bipolar supply used previously. > > Does anyone have a favorite dual op-amp in an 8 pin DIP package that does > rail-to-rail on both input and output from a single 5V rail? > > FET input > Rail-to-rail on input with 5V supply > Rail-to-rail on output > Dual op-amps in 8 pin DIP package > better than 1 MHz GBW > better than 10V / us slew rate > input offset better than 10 mV > > > Thanks for any suggestions! > > dwayne > > -- > Dwayne Reid <.....dwaynerKILLspam.....planet.eon.net> > Trinity Electronics Systems Ltd Edmonton, AB, CANADA > (780) 489-3199 voice (780) 487-6397 fax > > Celebrating 21 years of Engineering Innovation (1984 - 2005) > .-. .-. .-. .-. .-. .-. .-. .-. .-. .- > `-' `-' `-' `-' `-' `-' `-' `-' `-' > Do NOT send unsolicited commercial email to this email address. > This message neither grants consent to receive unsolicited > commercial email nor is intended to solicit commercial email. > > --

At 08:33 PM 6/28/2005, Mark Jordan wrote: > TLC272? TLC2272? TLC2272 was actually the first part I tried since I have them on hand for another product. Unfortunately, the output voltage swing is from Vss to (Vdd - 1.5) or 0V to 3.5V with a 5V rail. While I could go through hoops to make that work, I'd prefer to have R-R output as well as input. But thanks for the suggestion! I've got the two other part numbers suggested earlier by list-members coming in later this morning: MCP6002 & LMC6482 as well as a couple others from TI. I appreciate the suggestions that were made - I had started with a list that numbered in hundreds (TI, NS, LTC, AD, NJR, others). Interestingly enough, I hadn't included Microchip parts in the list and would have not considered them but for the suggestion that was made here. dwayne {Quote hidden}> > Does anyone have a favorite dual op-amp in an 8 pin DIP package that does > > rail-to-rail on both input and output from a single 5V rail? > > > > FET input > > Rail-to-rail on input with 5V supply > > Rail-to-rail on output > > Dual op-amps in 8 pin DIP package > > better than 1 MHz GBW > > better than 10V / us slew rate (now relaxed to 2V/us) > > input offset better than 10 mV -- Dwayne Reid <EraseMEdwaynerspam_OUTTakeThisOuTplanet.eon.net> Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 21 years of Engineering Innovation (1984 - 2005) .-. .-. .-. .-. .-. .-. .-. .-. .-. .- `-' `-' `-' `-' `-' `-' `-' `-' `-' Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email.

On 6/29/05, Dwayne Reid <dwaynerspam_OUTplanet.eon.net> wrote: > I've got the two other part numbers suggested earlier by list-members > coming in later this morning: MCP6002 & LMC6482 as well as a couple others > from TI. I have successfully used the TLV237x series. Meets all your reuirements except slew rate is only 2.4 V/uS. Regards, Mark markrages@gmail -- You think that it is a secret, but it never has been one. - fortune cookie