<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                           4,400
<SECURITIES>                                     8,779
<RECEIVABLES>                                   13,031
<ALLOWANCES>                                      (50)
<INVENTORY>                                      5,859
<CURRENT-ASSETS>                                35,924
<PP&E>                                          12,719
<DEPRECIATION>                                 (6,554)
<TOTAL-ASSETS>                                  46,283
<CURRENT-LIABILITIES>                            9,136
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        51,610
<OTHER-SE>                                       2,576
<TOTAL-LIABILITY-AND-EQUITY>                    46,283
<SALES>                                         34,050
<TOTAL-REVENUES>                                34,050
<CGS>                                           15,116
<TOTAL-COSTS>                                   15,116
<OTHER-EXPENSES>                                23,989
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                (4,151)
<INCOME-TAX>                                       132
<INCOME-CONTINUING>                            (4,283)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (4,283)
<EPS-PRIMARY>                                   (0.34)
<EPS-DILUTED>                                   (0.34)