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Analog switch housed in chipscale package

Milpitas, Calif. — Aimed at cell phones and other handheld devices, this dual analog switch from Intersil Corp. measures 2.0 x 1.5 mm and touts ultra-low resistance.

The ISL84684 is a true bi-directional switch with less than 0.5 Ohms of resistance over the full input signal range for lower signal loss and lower distortion of midi and voice signals, said Chris Ludeman, marketing manager of Intersil's Switch and MUX product group.

Intersil's device is a low on-resistance R(ON), low voltage, bi-directional, single-pole/double-throw (SPDT) analog switch designed for minimal distortion to signals in the audio range. With a signal-to-distortion figure of 78 dB, the ISL84684 will not compromise MP3 or FM radio performance, according to Ludeman.

The ISL84684 may be used to mux-in additional functionality such as MP3 playback and FM radio, while reducing design risk and occupying minimal additional board area, Ludeman said. It consists of two normally open (NO) and two normally closed (NC) switches. This configuration can be used as a dual 2-to-1 multiplexer.

The ISL84684 has a single +1.8 V to +4.5 V supply that allows the device to operate from 2-cell NiMH or alkaline batteries and directly off a single-cell Li-Ion battery for a larger signal output range. The digital logic input is 1.8 V logic-compatible over the full supply range.

The ISL84684 is available now in a 12-bump 2.0 x 1.5 mm package and is priced at $1.12 in 1,000-unit quantities. Click here for the ISL84684 data sheet.

Intersil , 1-888-468-3374, www.Intersil.com.

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