Date: 20/10/2011

2mmx2mm measuring 1.8V SPST analog switches from Vishay

Vishay Intertechnology, Inc. has released six new DG721/2/3 and DG2537/8/9 low-voltage, high-precision dual single-pole single-throw (SPST) analog switches.

The DG721/2/3 are designed to operate from a single 1.8 V to 5.5 V power supply and are available in the ultra-compact 2 mm by 2 mm TDFN-8 package and the 5 mm by 3 mm MSOP-8 package. The DG2537/8/9 can be operated from a single or dual 1.6 V to 5.5 V power supply and feature the MSOP-10 package.

The switches are suggested for noise-sensitive signal switching in circuits such as analog front end, data acquisition path, programmable gain control, sample and hold, and in conjunction with ADC and DAC and are seen in low-voltage instruments, control and automation equipment, portable meters, and healthcare products. The DG721/2/3 and DG2537/8/9 are suitable for both analog and digital signals, and applications such as PDAs and modems where A/V and digital multimedia signals need to be routed.

DG721/2/3 and DG2537/8/9 provide low and flat on-resistance of 2.5 ? typical to minimize insertion loss and distortion, as it is fabricated with advanced submicron CMOS technology and feature low leakage current of a few picoamps (typically), in addition to low parasitic off capacitance of 8 pF, on capacitance of 22 pF, and low charge injection of 1.8 pC to minimize signal noise. The switches offer a typical bandwidth of 366 MHz at - 3 dB and feature latch-up current > 300 mA per JESD78.

The devices contain two independent SPST switches. Switch 1 and Switch 2 are normally open for the DG721 and DG2537, and normally closed for the DG722 and DG2538. For the DG723 and DG2539, Switch 1 is normally open and Switch 2 is normally closed with a break-before-make switching timing.

Availability: Samples and production quantities of the analog switches are available now with lead times of 10 weeks for large orders.