Working from a 1.8 V to 5.5 V single power supply, the DG723 is intended for end products including low-voltage instruments, healthcare devices, portable meters, PDAs, and modems, where it will be used in conjunction with ADC, DAC, analog front-end gain control, and signal path control circuitry. Typical applications will include programmable gain control, active filtering, sample-and-hold, audio/video and digital signal switching and routing, and reed relay replacement.
Fabricated with advanced submicron CMOS technology, the DG723 provides low typical on-resistance of 2.5 Ω, typical leakage current of 1 pA, off capacitance of 8 pF, on capacitance of 19 pF, and charge injection of 1.8 pC. The switch’s RON flatness of 0.9 Ω at 5 V minimizes insertion distortion while its low parasitic and charge characteristics help to minimize switching noise. The device features typical bandwidth of 366 MHz at – 3 dB.
The DG723 contains two independent SPST switches. Switch 1 is normally open, and Switch 2 is normally closed.