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ADG774BR View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
ADG774BR CMOS 3 V/5 V, Wide Bandwidth Quad 2:1 Mux ADI
Analog Devices ADI
ADG774BR Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
a
FEATURES
Low Insertion Loss and On Resistance: 2.2 Typical
On Resistance Flatness 0.5 Typical
Automotive Temperature Range
–40؇C to +125؇C
–3 dB Bandwidth = 240 MHz
Single 3 V/5 V Supply Operation
Rail-to-Rail Operation
Very Low Distortion: 0.5%
Low Quiescent Supply Current (1 nA Typical)
Fast Switching Times
tON 7 ns
tOFF 4 ns
TTL/CMOS Compatible
APPLICATIONS
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
CMOS 3 V/5 V,
Wide Bandwidth Quad 2:1 Mux
ADG774
FUNCTIONAL BLOCK DIAGRAM
ADG774
S1A
D1
S1B
S2A
D2
S2B
S3A
D3
S3B
S4A
D4
S4B
1 OF 2
DECODER
EN
IN
GENERAL DESCRIPTION
The ADG774 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 with an input signal ranging
from 0 V to 5 V.
The bandwidth of the ADG774 is greater than 200 MHz; this,
coupled with low distortion (typically 0.5%), makes the part
suitable for switching USB 1.1 data signals and fast Ethernet
signals.
The on resistance profile is very flat over the full analog input
range ensuring excellent linearity and low distortion when
switching audio signals. Fast switching speed, coupled with high
signal bandwidth, also makes the parts suitable for video signal
switching. CMOS construction ensures ultralow power dissipa-
tion, making the parts ideally suited for portable and battery-
powered instruments.
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
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
The ADG774 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,
and have an input signal range that extends to the supplies. In
the OFF condition, signal levels up to the supplies are blocked.
The ADG774 switches exhibit break-before-make switching
action.
PRODUCT HIGHLIGHTS
1. Wide –3 dB Bandwidth, 240 MHz.
2. Ultralow Power Dissipation.
3. Extended Signal Range.
The ADG774 is fabricated on a CMOS process giving an
increased signal range that fully extends to the supply rails.
4. Low Leakage Over Temperature.
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.
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 © 2004 Analog Devices, Inc. All rights reserved.
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