參數(shù)資料
型號: ADG774BRQ
廠商: ANALOG DEVICES INC
元件分類: 運動控制電子
英文描述: CMOS 3 V/5 V, Wide Bandwidth Quad 2:1 Mux
中文描述: QUAD 2-CHANNEL, SGL ENDED MULTIPLEXER, PDSO16
封裝: MO-137AB, QSOP-16
文件頁數(shù): 1/8頁
文件大?。?/td> 119K
代理商: ADG774BRQ
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
ADG774
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
CMOS
3 V/5 V, Wide Bandwidth Quad 2:1 Mux
FUNCTIONAL BLOCK DIAGRAM
1 OF 2
DECODER
ADG774
EN
IN
S1A
S1B
S2A
S2B
S3A
S3B
S4A
S4B
D1
D2
D3
D4
FEATURES
Low Insertion Loss and On Resistance: 4
V
Typical
On-Resistance Flatness <2
V
Bandwidth >200 MHz
Single 3 V/5 V Supply Operation
Rail-to-Rail Operation
Very Low Distortion: <1%
Low Quiescent Supply Current (100 nA Typical)
Fast Switching Times
t
ON
10 ns
t
OFF
4 ns
TTL/CMOS Compatible
APPLICATIONS
10/100 Base-TX/T4
100VG-AnyLAN
Token Ring 4 Mbps/16 Mbps
ATM25/155
NIC Adapter and Hubs
Audio and Video Switching
Relay Replacement
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 200MHz and
this, coupled with low distortion (typically 0.5%), makes the
part suitable for switching fast ethernet signals.
The on-resistance profile is very flat over the full analog input
range ensuring excellent linearity and low distortion when switch-
ing audio signals. Fast switching speed, coupled with high signal
bandwidth, also makes the parts suitable for video signal switch-
ing. CMOS construction ensures ultralow power dissipation
making the parts ideally suited for portable and battery powered
instruments.
The ADG774 operates from a single 3.3V/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 bandwidth data rates >200 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 is typically –70 dB @ 30 MHz.
7. Off isolation is typically –60 dB @ 10 MHz.
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