ADG721

Data Sheet CMOS, Low Voltage, 4 Ω Dual SPST Switches in 3 mm × 2 mm LFCSP ADG721/ADG722/ADG723 00045-001 00045-002 FEATURES 1.8 V to 5.5 V single supply 4 Ω (max) on resistance Low on resistance flatness −3 dB bandwidth >200 MHz Tiny package options 8-lead MSOP 3 mm × 2 mm LFCSP (A grade) Fast switching times tON, 20 ns tOFF, 10 ns Low power consumption (<0.1 μW) TTL/CMOS compatible APPLICATIONS USB 1.1 signal switching circuits Cell phones PDAs Battery-powered systems Communication systems Sample hold systems Audio signal routing Video switching Mechanical reed relay replacement FUNCTIONAL BLOCK DIAGRAMS ADG721 ADG722 S1 S1 IN1 D1 D1 D2 IN2 IN2 S2 IN1 D2 S2 Figure 1. ADG723 S1 D1 IN2 Figure 2. IN1 D2 S2 00045-003 SWITCHES SHOWN FOR A LOGIC "0" INPUT Figure 3. GENERAL DESCRIPTION The ADG721, ADG722, and ADG723 are monolithic CMOS SPST switches. These switches are designed on an advanced submicron process that provides low power dissipation yet gives high switching speed, low on resistance, and low leakage currents. The devices are packaged in both a tiny 3 mm × 2 mm LFCSP and an MSOP, making them ideal for space-constrained applications. The ADG721, ADG722, and ADG723 are designed to operate from a single 1.8 V to 5.5 V supply, making them ideal for use in battery-powered instruments and with the new generation of DACs and ADCs from Analog Devices, Inc. The ADG721, ADG722, and ADG723 contain two independent single-pole/single-throw (SPST) switches. The ADG721 and...