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Resistors reduce switch noise

Posted: 24 Oct 2005 ?? ?Print Version ?Bookmark and Share

Keywords:supertex? analog switch ic? hv2601? hv2701?

Supertex Inc. rolled out two new low charge injection, 16-channel, 200V analog switch ICs that tout improved density and performance. According to Ahmed Masood, Supertex's director of marketing, the new 16-channel HV2601 and HV2701 enable system manufacturers to integrate greater channel density into a much smaller space. "These chips also feature low quiescent current of 10?A, which results in better operating efficiency," said Masood.

Both ICs are suited for applications that require high-voltage switching controlled by low voltage signals, such as in medical ultrasound imaging and nondestructive metal flaw detection. Other features include 22-ohm switch resistance that minimizes return signal attenuation, serial shift register control to reduce I/O connections, and up to 200V operating voltage for higher transmit voltages providing deeper body tissue imaging capability. In addition, the HV2701 switch includes integrated bleed resistors that minimize noise and reduce capacitive coupling, said Masood.

The HV2601 and the HV2701 are available in 48 lead-TQFP packages (HV2601FG-G and HV2701FG-G). All parts are green and RoHS compliant. Samples are available from stock, with pricing set at $23.50 each for the HV2601FG-G and $24.35 for the HV2701FG-G, both in 1,000-unit quantities.

- Bettyann Liotta


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