ADG774A

a FEATURES Bandwidth >400 MHz Low Insertion Loss and On Resistance: 2.2 ⍀ Typical On-Resistance Flatness 0.3 ⍀ Typical Single 3 V/5 V Supply Operation Very Low Distortion: <0.3% Low Quiescent Supply Current (1 nA Typical) Fast Switching Times tON 6 ns tOFF 3 ns TTL/CMOS Compatible Low Voltage 400 MHz Quad 2:1 Mux with 3 ns Switching Time ADG774A FUNCTIONAL BLOCK DIAGRAM ADG774A S1A D1 S1B S2A D2 S2B S3A D3 S3B S4A D4 S4B 1 OF 2 DECODER EN IN GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The ADG774A is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers with high impedance outputs. The CMOS process provides low power dissipation yet gives high switching speed and low on resistance. The on-resistance variation is typically less than 0.5 Ω over the input signal range. The bandwidth of the ADG774A is typically 400 MHz and this, coupled with low distortion (typically 0.3%), makes the part suitable for switching of high-speed data signals. The on-resistance profile is very flat over the full analog input range ensuring excellent linearity and low distortion. CMOS construction ensures ultralow power dissipation. The ADG774A operates from a single 3.3 V/5 V supply and is TTL logic compatible. The control logic for each switch is shown in the Truth Table. These switches conduct equally well in both directions when ON. In the OFF condition, signal levels up to the supplies are blocked. The ADG774A switches exhibit break-before-make switching action. 1. Wide bandwidt...