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PDIP equivalent to opa348

Vishal Kapoor
Prodigy 20 points
Other Parts Discussed in Thread: OPA348, TLV2451, OPA336, OPA347, OPA344, OPA343, OPA337, OPA340

I am working on a signal conditioning project in which i am using opa348. but i am working on a general purpose PCB. So, it is difficult to solder the SMD IC. So, is there any PDIP IC available equivalent to opa348.  

  • 0
    TI__Guru* 93105 points

    Hi Vishal,

    I searched for some electrically similar operational amplifiers to the OPA348 that are available in the PDIP package. I used the PDIP package availability and OPA348's 45 uA supply current as the leading criteria, supply voltage range and rail-to-rail I/O as follow-ups.

    Take a look at the OPA347, OPA336 and TLV2451.

    http://www.ti.com/product/opa347

    http://www.ti.com/product/opa336

    http://www.ti.com/product/tlv2451

    Check and make sure that their dc and ac specifications meet your applications requirements.

    Regards, Thomas

    PA - Linear Applications Engineering

     

  • 0
    TI__Guru 60570 points

    Vishal,

    I am not sure what you mean by SMD IC; OPA348 is offered in three packages: SOT23-5, SC70-5 and the largest SO-8 - please see below.

    No two parts are identical and you do not specify what are your most important specs in your application; so here are some op amps offered in PDIP package with spec 'similar' to OPA348:  OPA337, OPA340, OPA343, OPA344.

  • 0 in reply to Marek Lis
    Prodigy 20 points

    Sir,

    I want signal conditioning of the signal coming from CT (current transformer or current transducer). The output of the CT is an AC signal and i want to shift the signal above zero level by providing some dc bias. 

    example: Assume that range of the output signal of CT is +1 V to -1 V, then i'll provide dc bias of 1 V. So, that the range becomes +2 V to 0 V. The main purpose is to shift the level above zero.

    Please suggest suitable op-amp (which have PDIP package) for this purpose.  

  • 0 in reply to Vishal Kapoor
    TI__Guru 60570 points

    Vishal,

    For the DC level shift you may be required to use rail-to-rail input op amp; any of the following op amps is offered in PDIP package with rail-to rail input common-mode: OPA340, OPA343, OPA344, OPA347 and TLV2451.  You may request free samples of some of the op amps to try them out in your application.