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ADG811 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADG811
Beschreibung 0.5 CMOS 1.65 V to 3.6 V Quad SPST Switches
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 16 Seiten
ADG811 Datasheet, Funktion
FEATURES
0.5 Ω typ on resistance
0.8 Ω max on resistance at 125°C
1.65 V to 3.6 V operation
Automotive temperature range: –40°C to +125°C
High current carrying capability: 300 mA continuous
Rail-to-rail switching operation
Fast switching times: <25 ns
Typical power consumption < 0.1 µW
APPLICATIONS
Cellular phones
MP3 players
Power routing
Battery-powered systems
PCMCIA cards
Modems
Audio and video signal routing
Communications systems
GENERAL DESCRIPTION
The ADG811, ADG812, and ADG813 are low voltage CMOS
devices containing four independently selectable switches.
These switches offer ultralow on resistance of less than 0.8 Ω
over the full temperature range. The digital inputs can handle
1.8 V logic with a 2.7 V to 3.6 V supply.
These devices contain four independent single-pole/single-
throw (SPST) switches. The ADG811 and ADG812 differ only
in that the digital control logic is inverted. The ADG811
switches are turned on with a logic low on the appropriate
control input, while a logic high is required to turn on the
switches of the ADG812. The ADG813 contains two switches
whose digital control logic is similar to the ADG811, while the
logic is inverted on the other two switches.
Each switch conducts equally well in both directions when on
and has an input signal range that extends to the supplies. The
ADG813 exhibits break-before-make switching action.
The ADG811, ADG812, and ADG813 are fully specified for
3.3 V, 2.5 V, and 1.8 V supply operation. They are available in a
16-lead TSSOP package.
<0.5 Ω CMOS 1.65 V to 3.6 V
Quad SPST Switches
ADG811/ADG812/ADG813
FUNCTIONAL BLOCK DIAGRAMS
S1 S1 S1
IN1 IN1 IN1
D1 D1 D1
S2 S2 S2
IN2 IN2 IN2
ADG811
D2
S3
ADG812
D2
S3
ADG813
D2
S3
IN3 IN3 IN3
D3 D3 D3
S4 S4 S4
IN4 IN4 IN4
D4 D4 D4
SWITCHES SHOWN FOR A LOGIC 1 INPUT
Figure 1.
PRODUCT HIGHLIGHTS
1. <0.8 Ω over full temperature range of –40°C to +125°C.
2. Single 1.65 V to 3.6 V operation.
3. Operational with 1.8 V CMOS logic.
4. High current handling capability (300 mA continuous
current at 3.3 V).
5. Low THD+N (0.02% typ).
Rev. A
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. Trademarks and
registered trademarks are the property of their respective owners.
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.






ADG811 Datasheet, Funktion
ADG811/ADG812/ADG813
ABSOLUTE MAXIMUM RATINGS
Table 4. TA = 25°C, unless otherwise noted
Parameter
Rating
VDD to GND
–0.3 V to +4.6 V
Analog Inputs1
–0.3 V to VDD + 0.3 V
Digital Inputs1
GND – 0.3 V to 4.6 V or 10 mA,
whichever occurs first
Peak Current, S or D
(Pulsed at 1 ms,
10% Duty Cycle Max)
3.3 V Operation
500 mA
2.5 V Operation
460 mA
1.8 V Operation
420 mA
Continuous Current, S or D
3.3 V Operation
300 mA
2.5 V Operation
275 mA
1.8 V Operation
250 mA
Operating Temperature Range –40°C to +125°C
Automotive (Y Version)
Storage Temperature Range
–65°C to +150°C
Junction Temperature
150°C
TSSOP Package
θJA Thermal Impedance
150°C/W
θJC Thermal Impedance
27°C/W
IR Reflow, Peak Temperature
<20 sec
235°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those listed in the operational sections
of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability. Only one absolute maximum rating may be
applied at any one time.
Table 5. ADG811/ADG812 Truth Table
ADG811 IN
ADG812 IN
Switch Condition
0 1 On
1 0 Off
Table 6. ADG813 Truth Table
Logic Switch 1, Switch 4
0 Off
1 On
Switch 2, Switch 3
On
Off
1 Overvoltages at IN, S, or D are clamped by internal diodes. Current should be
limited to the maximum ratings given.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the
human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. A | Page 6 of 16

6 Page









ADG811 pdf, datenblatt
ADG811/ADG812/ADG813
VDD
0.1µF
VDD
S
D
GND
50
NETWORK
ANALYZER
50
VS
RL VDD
50
OFF ISOLATION = 20 LOG VOUT
VS
Figure 24. Off Isolation
VDD
0.1µF
VDD
S
D
GND
NETWORK
ANALYZER
50
VS
RL VDD
50
INSERTION LOSS = 20 LOG VOUT WITH SWITCH
VOUT WITHOUT SWITCH
Figure 25. Bandwidth
NETWORK
ANALYZER
VOUT
RL
50
50
VS
VDD
0.1µF
VDD
S1
S2 D RL
50
GND
CHANNEL-TO-CHANNEL CROSSTALK = 20 LOG VOUT
VS
Figure 26. Channel-to-Channel Crosstalk
Rev. A | Page 12 of 16

12 Page





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