The ADG819 is a monolithic， CMOS， single-pole， double-throw （SPDT） switch. This switch is designed on a submicron process that provides low power dissipation yet gives high switching speed， low on resistance， and low leakage currents. Low power consumption and an operating supply range of 1.8 V to 5.5 V make the ADG819 ideal for battery-powered， portable instruments. Each switch of the ADG819 conducts equally well in both directions when on. The ADG819 exhibits break-before-make switching action， thus preventing momentary shorting when switching channels. The ADG819 is available in a 6-lead SOT-23 package， an 8-lead MSOP package， and in a 6-ball WLCSP package. This chip occupies only a 1.14 mm × 2.18 mm area， making it the ideal candidate for space-constrained applications.