Filter IC is clock tunable
The LTC1063 is a fifth-order Butterworth switched capacitor filter IC
that allows full clock tunability without degradation of the filter's
typical 1-mVdc offset. In addition, the device provides better than 12-bit
dc and ac gain linearity with virtually no clock feed-through. The
LTC1063 has a maximum cutoff frequency of 50 kHz, a THD of 0.01%, 95
microvoltsrms of total wideband noise, and a clock-to-cutoff frequency
ratio of 100: 1. With +/-7.5-V supplies, a 93-dB SNR and a 1-kHz THD below
0.02% can be achieved. The device operates from supplies ranging from
+/-2.375 to +/-8 V, and comes in 8-pin mini DIPs and 16-pin SO packages.
(From $5.75 ea/100–available now.) Linear Technology Corp. Milpitas,
CA Information 800-637-5545 Fax 408-434-0507
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