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ADG774A Datasheet(PDF) 1 Page - Analog Devices |
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ADG774A Datasheet(HTML) 1 Page - Analog Devices |
1 / 8 page REV. 0 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 under any patent or patent rights of Analog Devices. a ADG774A One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2001 Low Voltage 400 MHz Quad 2:1 Mux with 3 ns Switching Time FUNCTIONAL BLOCK DIAGRAM 1 OF 2 DECODER ADG774A EN IN S1A S1B S2A S2B S3A S3B S4A S4B D1 D2 D3 D4 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 GENERAL DESCRIPTION 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 con- struction 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. PRODUCT HIGHLIGHTS 1. Wide bandwidth data rates >400 MHz. 2. Ultralow Power Dissipation. 3. Low leakage over temperature. 4. Break-Before-Make Switching. This prevents channel shorting when the switches are config- ured as a multiplexer. 5. Crosstalk is typically –70 dB @ 10 MHz. 6. Off isolation is typically –65 dB @ 10 MHz. |
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