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ADG774ABRQZ-REEL Datasheet(PDF) 1 Page - Analog Devices |
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ADG774ABRQZ-REEL Datasheet(HTML) 1 Page - Analog Devices |
1 / 16 page Low Voltage, 400 MHz, Quad 2:1 Mux with 3 ns Switching Time ADG774A Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved. FEATURES Bandwidth: >400 MHz Low insertion loss and on resistance: 2.2 Ω typical On resistance flatness: 0.3 Ω 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 Pb-free packages 16-lead QSSOP 16-lead 3 mm × 3 mm body LFCSP FUNCTIONAL BLOCK DIAGRAM 1 OF 2 DECODER ADG774A EN IN S1A S1B S2A S2B S3A S3B S4A S4B D1 D2 D3 D4 Figure 1. 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 offers 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 (see Table 5). 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 of >400 MHz. 2. Ultralow power dissipation. 3. Low leakage over temperature. 4. Break-before-make switching prevents channel shorting when the switches are configured as a multiplexer. 5. Crosstalk is typically −70 dB @ 10 MHz. 6. Off isolation is typically −65 dB @ 10 MHz. 7. Available in compact 3 mm × 3 mm LFCSP. |
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