ADG721 Datasheet

• 1.8 V to 5.5 V single supply
• Low on resistance flatness
• −3 dB bandwidth
• >200 MHz
• Tiny package options 
  8-lead MSOP 
  3 mm × 2 mm LFCSP (A grade)
• 4 Ω (max) on resistance
• Fast switching times 
  T_ON 20 ns
  T_OFF 10 ns
• Low power consumption (<0.1 μW)
• TTL/CMOS compatible

• 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

The ADG721 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 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 contain two independent single-pole/single-throw (SPST) switches. The ADG721 differ only in that both switches are normally open and normally closed, respectively.

Each switch of the ADG721 conducts equally well in both directions when on.