EXHIBIT 5.1


                                May 28, 1998

ADAC Laboratories
540 Alder Drive
Milpitas, California 95035

        Re:  Registration Statement on Form S-8

Ladies and Gentlemen:

        We have examined the Registration Statement on Form S-8 to be 
filed by you with the Securities and Exchange Commission on or about May 
28, 1998 (the "Registration Statement"), in connection with the 
registration under the Securities Act of 1933, as amended, of 847,000 
shares of your Common Stock  (the "Shares") reserved for issuance under 
the 1992 Stock Option Plan (the "Plan").  As your legal counsel, we have 
examined the proceedings taken and proposed to be taken in connection 
with the issuance, sale and payment of consideration for the Shares to 
be issued under the Plan.

        It is our opinion that, when issued and sold in compliance with 
applicable prospectus delivery requirements and in the manner referred 
to in the Plan and pursuant to the agreements which accompany the Plan, 
the Shares will be legally and validly issued, fully paid and non-
assessable.

        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 and any amendments 
thereto.

                                     Sincerely,

                                     WILSON, SONSINI, GOODRICH & ROSATI
                                     Professional Corporation