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Another part that probably never was

Discussion in 'Electronic Components' started by Norm Dresner, Oct 17, 2004.

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  1. Norm Dresner

    Norm Dresner Guest

    After I found the mythical LM321 Precision Preamplifier in the National Semi
    book, I was browsing through a 1992 TI analog book and came across the TL010
    Adjustable Current mirror. Another very interesting part, I thought. TI
    disclaims any knowledge of it on their website today.

    Was it ever manufactured or was the data sheet a trial balloon to see if
    they'd get any orders for it?

    Are there any other manufacturers who make (fixed or adjustable) 3- or
    4-terminal current mirror ICs? Yes, I'm fully aware that it's trivial with
    a dual transistor (or two discretes or two transistors in an IC array), but
    this one -- and the fixed ratio counterparts TL011, TL012, TL014, and
    TL021 -- has well matched transistors with obvious good thermal tracking.

  2. Tim Wescott

    Tim Wescott Guest

    IIRC Zetex has some current mirror pairs available -- check their web
    site for the truth.
  3. Norm Dresner

    Norm Dresner Guest

    Thanks, I will
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