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                     [GRAY, HARRIS & ROBINSON LETTERHEAD]

                                 EXHIBIT 5.1

                                June 26, 1997


Sawtek, Inc.
1818 South Highway 441
Apopka, Florida 32703

        Re:  Registration Statement on Form S-3

Dear Ladies and Gentlemen:

        We have examined the Registration Statement on Form S-3 filed by you
with the Securities and Exchange Commission on May 9, 1997, (the "Registration
Statement") in connection with the registration under the Securities Act of
1933, as amended, of 300,000 shares of Common Stock of Sawtek Inc. (the
"Shares"). As your counsel in connection with this transaction, we have
examined the proceedings proposed to be taken in connection with said sale and
issuance of the Shares.

        It is our opinion that, upon completion of the proceedings being taken
or contemplated by us, as your counsel, to be taken prior to the issuance of
the Shares, and upon completion of the proceedings being taken in order to
permit such transactions to be carried out in accordance with the securities
laws of the various states, where required, the Shares, when issued and sold in
the manner referred to in the Registration Statement, will be legally issued,
fully paid and nonassessable.

        We consent to the use of this opinion as an exhibit to the Registration
Statement, and further consent to the use of our name wherever appearing in the
Registration Statement, including the prospectus constituting part thereof, and
any amendment thereto and any registration statement for the same offering
covered by the Registration Statement that is to be effective upon filing
pursuant to Rule 462(b) and all post-effective amendments thereto.

                                    Very truly yours,

                                    Gray, Harris & Robinson, P.A.


                                    By: /s/ William A. Grimm
                                        ------------------------------------
                                        William A. Grimm