Product category:
Analogue and Mixed Signal ICs
News Release from: Vishay Siliconix | Subject: DG2731, DG2732, and DG2733
Edited by the Electronicstalk Editorial
Team on 10 May 2006
Analogue switches are optimised for
portable duty
SPDT switches combine low-voltage operation and low on-resistance ratings in a small package size for signal-routing applications in portable and battery-powered end products.
Vishay Intertechnology has released three dual single-pole/double-throw (SPDT) monolithic CMOS analogue 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 analogue switches are intended for use in cellphones, PDAs, portable media players, speaker headsets, hard drives, and modems
This article was originally published on Electronicstalk on 17 Jun 2003 at 8.00am (UK)
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Operating over a single-supply operating voltage range of 1.6 to 4.3V, the three new analogue switches feature an on-resistance of only 0.4ohm at maximum power and delta on-resistance of just 0.03ohm, lowering distortion and improving signal fidelity.
Compatible with 1.6V logic, they are easily interfaced with low-voltage DSP or MCU control logic, making them well suited for direct power from a one-cell Li-ion battery.
The devices' latch-up protection is greater than 300mA as tested per JESD78, thanks to Vishay's submicron CMOS low-voltage process technology.
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 50ns turn-on time and 14ns turn-off time at 4.3V.
Two of the switches - DG2731 and DG2732 - have two separate control pins with reverse control logic.
The DG2731 has two switches that are normally open and two that are normally closed, whereas the DG2732 has three normally open switches and one normally closed.
Like the DG2731, the DG2733 has two normally open and two normally closed switches, and it also features a pin to enable it when the logic is high.
All three are available in a choice of two compact cases that enable smaller end products: DFN-10 with lead (Pb)-free nickel-palladium-gold device terminations (represented by the "-E4" suffix) and MSOP-10 with 100% tin matte terminations, also lead (Pb)-free ("-E3" suffix).
Both types of terminations meet all JEDEC standards for reflow and MSL ratings.
They operate over a temperature range of -40 to +85C.
Samples and production quantities of the new analogue switches are available now, with lead times of eight to 12 weeks for larger orders.
Pricing for US delivery in 1000-piece quantities is $1.40.
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