ADG721 반도체 회로 부품 판매점
CMOS Low Voltage 4 ohm Dual SPST Switches
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 Analog Devices |
Data Sheet
CMOS, Low Voltage, 4 Ω Dual SPST
Switches in 3 mm × 2 mm LFCSP
ADG721/ADG722/ADG723
FEATURES
1.8 V to 5.5 V single supply
4 Ω (max) on resistance
Low on resistance flatness
−3 dB bandwidth >200 MHz
Tiny package options
8-lead MSOP
3 mm × 2 mm LFCSP (A grade)
Fast switching times
tON, 20 ns
tOFF, 10 ns
Low power consumption (<0.1 μW)
TTL/CMOS compatible
APPLICATIONS
USB 1.1 signal switching circuits
Cell phones
PDAs
Battery-powered systems
Communication systems
Sample hold systems
Audio signal routing
Video switching
Mechanical reed relay replacement
FUNCTIONAL BLOCK DIAGRAMS
ADG721
ADG722
S1 S1
IN1
D1 D1
D2
IN2 IN2
S2
IN1
D2
S2
Figure 1.
ADG723
S1
D1
IN2
Figure 2.
IN1
D2
S2
SWITCHES SHOWN FOR
A LOGIC "0" INPUT
Figure 3.
GENERAL DESCRIPTION
The ADG721, ADG722, and ADG723 are monolithic CMOS
SPST switches. These switches are designed on an advanced
submicron process that provides low power dissipation yet gives
high switching speed, low on resistance, and low leakage
currents. The devices are packaged in both a tiny 3 mm × 2 mm
LFCSP and an MSOP, making them ideal for space-constrained
applications.
The ADG721, ADG722, and ADG723 are designed to operate
from a single 1.8 V to 5.5 V supply, making them ideal for use
in battery-powered instruments and with the new generation of
DACs and ADCs from Analog Devices, Inc.
The ADG721, ADG722, and ADG723 contain two independent
single-pole/single-throw (SPST) switches. The ADG721 and
ADG722 differ only in that both switches are normally open
and normally closed, respectively. In the ADG723, Switch 1 is
normally open and Switch 2 is normally closed.
Each switch of the ADG721, ADG722, and ADG723 conducts
equally well in both directions when on. The ADG723 exhibits
break-before-make switching action.
PRODUCT HIGHLIGHTS
1. 1.8 V to 5.5 V single-supply operation.
2. Very low RON (4 Ω max at 5 V, 10 Ω max at 3 V).
3. Low on resistance flatness.
4. −3 dB bandwidth >200 MHz.
5. Low power dissipation. CMOS construction ensures low
power dissipation.
6. 8-lead MSOP and 3 mm × 2 mm LFCSP.
Rev. E
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. Specifications subject to change without notice. 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 ©2004-2011 Analog Devices, Inc. All rights reserved.
ADG721/ADG722/ADG723
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagrams............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Pin Configuration and Pin Descriptions....................................... 6
REVISION HISTORY
10/11—Rev. D to Rev. E
Changes to Ordering Guide ...............................................................
4/11—Rev. C to Rev. D
Changes to Ordering Guide .......................................................... 14
1/11—Rev. B to Rev. C
Changes to Table 4............................................................................ 6
Changes to Ordering Guide .......................................................... 14
2/07—Rev. A to Rev. B
Updated Format..................................................................Universal
Changes to Specifications ................................................................ 3
Changes to Absolute Maximum Ratings ....................................... 5
Change to Figure 4 ........................................................................... 6
Updated Outline Dimensions ....................................................... 13
Changes to Ordering Guide .......................................................... 13
3/04—Rev. 0 to Rev. A
Additions to Applications................................................................ 1
Changes to Ordering Guide ............................................................ 4
Updated Outline Dimensions ....................................................... 10
Data Sheet
Terminology .......................................................................................7
Typical Performance Characteristics ..............................................8
Test Circuits..................................................................................... 10
Applications..................................................................................... 12
ADG721/ADG722/ADG723 Supply Voltages ....................... 12
On Response vs. Frequency ...................................................... 12
Off Isolation ................................................................................ 12
Outline Dimensions ....................................................................... 13
Ordering Guide .......................................................................... 14
Rev. E | Page 2 of 16
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