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                                  EXHIBIT 5.1





                               February 15, 1996





ADAC Laboratories
540 Alder Drive
Milpitas, California  95035

Gentlemen:

                 We have acted as your counsel in connection with the offering
and proposed sale of up to 138,302 of the Company's Common Stock (the "Common
Stock") to be offered by third parties pursuant to a Registration Statement on
Form S-3 to be filed under the Securities Act of 1933, (the "Registration
Statement").  In this connection we have examined: (a) the Company's
Registration Statement; (b) the Company's Certificate of Incorporation and
Bylaws, as amended to date; (c) minutes of action by the Company's Board of
Directors; and (d) such other proceedings, documents and records as we have
deemed necessary to enable us to render this opinion.

                 Based upon the foregoing, we are of the opinion that, when
sold as contemplated by the Registration Statement, the shares of Common Stock
covered by the Registration Statement will be validly issued, fully paid and
nonassessable.

                 We hereby consent to the use of this opinion as an exhibit to
the Registration Statement and to the reference to our firm under the caption
"Legal Opinions" in the Prospectus included therein.

                                           GRAVEN PERRY BLOCK BRODY & QUALLS



                                           By  /s/  KRISTON D. QUALLS
                                             ---------------------------------
                                                    Kriston D. Qualls
    
KDQ:llr
