<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED FINANCIAL STATEMENTS DATED JULY 2, 2000 OF ADAC
LABORATORIES FILED ON FORM 10-Q AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<CURRENCY> 1,000
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> OCT-01-2000
<PERIOD-START> APR-03-2000
<PERIOD-END> JUL-02-2000
<EXCHANGE-RATE> 1
<CASH> 8,632
<SECURITIES> 0
<RECEIVABLES> 97,250
<ALLOWANCES> 14,808
<INVENTORY> 28,938
<CURRENT-ASSETS> 142,997
<PP&E> 35,486
<DEPRECIATION> 18,560
<TOTAL-ASSETS> 242,994
<CURRENT-LIABILITIES> 124,980
<BONDS> 0
0
0
<COMMON> 159,141
<OTHER-SE> (44,642)
<TOTAL-LIABILITY-AND-EQUITY> 242,994
<SALES> 63,082
<TOTAL-REVENUES> 87,310
<CGS> 35,144
<TOTAL-COSTS> 51,736
<OTHER-EXPENSES> 27,510
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 939
<INCOME-PRETAX> 7,125
<INCOME-TAX> 2,536
<INCOME-CONTINUING> 4,589
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 4,589
<EPS-BASIC> 0.22
<EPS-DILUTED> 0.21
</TABLE>