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OPA1652/1654 future device?

Mike Tripoli
Genius 3295 points
Other Parts Discussed in Thread: OPA1652, OPA2348, TL972, OPA2171, OPA4171

I have a data sheet for the OPA1652/1654 devices. No one seems to have stock (including TI -lol). Was this a future device that never happened? Can you recommend a device like this; the application is high volume guitar effects pedals. I'd like to keep the price from a distributor (Mouser, Digikey) to $1.00 or less in small quantities (I know, not asking for much).

Thanks very much,

Mike

  • 0
    TI__Genius 12325 points

    Hi Mike,

    The OPA1652 and 1654 are not future devices and they've actually been released to the market (except for the 1654 in SOIC which releases very shortly). I've started looking into this issue because when I do a search at several online distributors I confirmed the issues with availability that you bring up. If you need engineering samples for prototyping I would be happy to send some to you to keep your project moving forward and I will update this thread when I know more about availability from our distributors.

  • 0 in reply to John Caldwell
    Genius 3295 points

    Hi John,

    Thanks very much for the reply and looking into this. Samples would be great (my boards use SOIC) though until I see some pricing I don't know that I can use them. Digikey has them listed (but not stocked) at $1.60 for minimum buy of 375 pieces. I suspect the price to be double that in smaller quantities.

    Currently I'm evaluating the OPA2348 ($1.04 - Mouser) and the TL972 ($1.00 - Mouser). Single and quad versions of these as well. They spec's look good and the price is right. If the OPA1652(54) could be in this same range it's a no brainer for design in.

    Thanks again,

    Mike

  • 0 in reply to Mike Tripoli
    TI__Genius 12325 points

    Mike,

    I will contact you via email concerning the samples so you can move forward evaluating the part. One other part you may want to consider is the OPA2171 (or OPA4171), these are general purpose, 36V FET input amplifiers with good audio performance although the broadband voltage noise spectral density is not quite as good as the OPA1652.

    I can't comment on how our distributors do pricing, but a qualitative price comparison can be done using the 1ku price given on the TI website. Comparing the price per thousand units of the opamps mentioned:

    OPA1652: ($.65/1ku)

    OPA2348: ($.35/1ku)

    TL972: ($.40/1ku)

    OPA2171: ($.60/1ku)

  • 0 in reply to John Caldwell
    Genius 3295 points

    John,

    Thanks for the heads-up on the OPA2171. I'll include a couple in my next order with Mouser.

    Mike

  • 0 in reply to Mike Tripoli
    TI__Genius 12325 points

    Sounds good, I have sent an email to the address you have registered with the e2e forum concerning samples.