<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 40,176
<SECURITIES> 20,559
<RECEIVABLES> 11,196
<ALLOWANCES> 1,148
<INVENTORY> 21,583
<CURRENT-ASSETS> 99,220
<PP&E> 33,851
<DEPRECIATION> 15,532
<TOTAL-ASSETS> 117,539
<CURRENT-LIABILITIES> 13,893
<BONDS> 0
0
0
<COMMON> 27
<OTHER-SE> 102,747
<TOTAL-LIABILITY-AND-EQUITY> 117,539
<SALES> 83,601
<TOTAL-REVENUES> 84,882
<CGS> 40,589
<TOTAL-COSTS> 40,589
<OTHER-EXPENSES> 24,720
<LOSS-PROVISION> 70
<INTEREST-EXPENSE> 139
<INCOME-PRETAX> 21,725
<INCOME-TAX> 6,541
<INCOME-CONTINUING> 15,184
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 15,184
<EPS-BASIC> 0.56
<EPS-DILUTED> 0.53
</TABLE>