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Switching IC combines wide voltage range, low leakage

Posted: 18 Jan 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Vishay Intertechnology? analog switching IC? DG9051? DG9052? DG9053?

Vishay Intertechnology Inc. released a trio of precision low-voltage monolithic CMOS analog switching ICs that combine a wide voltage range, low leakage, and tight on-resistance matching for precision signal switching and routing.

Released were an 8-channel analog multiplexer (DG9051), a dual 4-channel analog multiplexer (DG9052), and a triple 2-channel single-pole/double-throw (SPDT) analog switch (DG9053). The new devices are designed for use in cellphones, communication systems, modems, data acquisition systems, automated test equipment and automotive systems.

All three devices feature a wide input voltage range of 2.7V to 12V for single-supply implementations and 12.7V to 16V for dual-supply implementations. Built on Vishay's proprietary high-density process, the new devices offer the advantage of bi-directional signal, rail-to-rail analog signal handling. These characteristics, along with the wide voltage range, offer significant flexibility to circuit designers, said Vishay.

The CMOS logic compatible control inputs of the DG9051, DG9052 and DG9053 have guaranteed 2V logic high/0.8-V logic low when operating from a single 5V or dual 15V power supplies, and 2.4V logic high/0.8V logic low with V + = 12V power supplies. On-resistance ranges as low as 30 ohms depending on the power supply configuration, with guaranteed low on-resistance matching as low as 5 ohms.

Packaged in the TSSOP-16 case, the devices have Pb-free terminations and are pin-compatible with 74HC4051/2/5. They operate over a temperature range of -400C to 850C. Samples and production quantities of the new analog switches/multiplexers are already available, with lead times of six to eight weeks for larger orders.

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