Datasheet ADG774 (Analog Devices)

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CMOS 3 V/5 V, Wide Bandwidth Quad 2:1 Mux ADG774 FEATURES FUNCTIONAL BLOCK DIAGRAM Low Insertion Loss and On Resistance: 2.2 Typical On Resistance Flatness 0.5 Typical ADG774 Automotive Temperature Range S1A D1 –40 C to +125 C S1B –3 dB Bandwidth = 240 MHz S2A Single 3 V/5 V Supply Operation D2 S2B Rail-to-Rail Operation S3A Very Low Distortion: 0.5% D3 S3B Low Quiescent Supply Current (1 nA Typical) S4A Fast Switching Times D4 S4B tON 7 ns tOFF 4 ns 1 OF 2 TTL/CMOS Compatible DECODER APPLICATIONS EN IN USB 1.1 Signal Switching Circuits Cell Phones PDAs Battery-Powered Systems Communications Systems Data Acquisition Systems Token Ring 4 Mbps/16 Mbps Audio and Video Switching Relay Replacement GENERAL DESCRIPTION
The ADG774 operates from a single 3.3 V/5 V supply and is The ADG774 is a monolithic CMOS device comprising four TTL logic compatible. The control logic for each switch is shown 2:1 multiplexer/demultiplexers with high impedance outputs. in the Truth Table. The CMOS process provides low power dissipation yet gives These switches conduct equally well in both directions when ON, high switching speed and low on resistance. The on resistance and have an input signal range that extends to the supplies. In variation is typically less than 0.5 Ω with an input signal ranging the OFF condition, signal levels up to the supplies are blocked. from 0 V to 5 V. The ADG774 switches exhibit break-before-make switching The bandwidth of the ADG774 is greater than 200 MHz; this, action. coupled with low distortion (typically 0.5%), makes the part suitable for switching USB 1.1 data signals and fast Ethernet
PRODUCT HIGHLIGHTS
signals. 1. Wide –3 dB Bandwidth, 240 MHz. The on resistance profile is very flat over the full analog input 2. Ultralow Power Dissipation. range ensuring excellent linearity and low distortion when 3. Extended Signal Range. switching audio signals. Fast switching speed, coupled with high The ADG774 is fabricated on a CMOS process giving an signal bandwidth, also makes the parts suitable for video signal increased signal range that fully extends to the supply rails. switching. CMOS construction ensures ultralow power dissipa- tion, making the parts ideally suited for portable and battery- 4. Low Leakage Over Temperature. powered instruments. 5. Break-Before-Make Switching. This prevents channel shorting when the switches are config- ured as a multiplexer. 6. Crosstalk Typically –70 dB @ 30 MHz. 7. Off Isolation Typically –60 dB @ 10 MHz. REV. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise
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Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ORDERING GUIDE PIN CONFIGURATION TERMINOLOGY Typical Performance Characteristics Test Circuits OUTLINE DIMENSIONS Revision History