SPDT analog switches provide low on-resistance
31 May 2006
Analogue, Mixed Signal, LSI
Vishay Intertechnology has released three dual single-pole/double-throw (SPDT) monolithic CMOS analog switches that combine a low voltage operating range and low on-resistance ratings in a small package size for signal routing applications in portable and battery-powered end products. The new DG2731, DG2732, and DG2733 analog switches operate over a single-supply operating voltage range of 1,6 V to 4,3 V, and feature an on-resistance of only 0,4 Ω at maximum power and delta RON of just 0,03 Ω, lowering distortion and improving signal fidelity. Compatible with 1,6 V logic, they are easily interfaced with low-voltage DSP or MCU control logic. They conduct signals within power rails equally well in both directions when on, and block signals up to the power supply level when off, with guaranteed break-before-make. Switching is fast, with a 50 ns turn-on time and 14 ns turn-off time at 4,3 V. The DG2731 and DG2732 have two separate control pins with reverse control logic. DG2731 has two switches that are normally open and two that are normally closed, while DG2732 has three normally open switches and one normally closed. The DG2733 has two normally open and two normally closed switches, and it also features an EN pin to enable it when the logic is high.
www.vishay.com
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