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ADG1308 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADG1308
Beschreibung (ADG1308 / ADG1309) Multiplexers
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 16 Seiten
ADG1308 Datasheet, Funktion
www.DataSheet4U.com
FEATURES
33 V supply range
130 on resistance
Fully specified at ±15 V/+12 V
3 V logic-compatible inputs
Rail-to-rail operation
Break-before-make switching action
16-lead TSSOP and 16-lead SOIC_N
Upgrade for the ADG508A/ADG509A
APPLICATIONS
Audio and video routing
Test equipment
Data acquisition systems
Battery-powered systems
Communication systems
Signal routing
4- and 8-Channel
±15 V/+12 V Multiplexers
ADG1308/ADG1309
FUNCTIONAL BLOCK DIAGRAMS
ADG1308
S1
ADG1309
S1A
S4A
DA
D
S1B
DB
S8 S4B
1-OF-8
DECODER
1-OF-4
DECODER
A0 A1 A2 EN
Figure 1.
A0 A1 EN
GENERAL DESCRIPTION
The ADG1308 and ADG1309 are monolithic analog multi-
plexers consisting of eight single channels and four differential
channels, respectively. The ADG1308 switches one of eight
inputs to a common output as determined by the 3-bit binary
address lines A0, A1, and A2. The ADG1309 switches one of
four differential inputs to a common differential output as
determined by the 2-bit binary address lines A0 and A1. An EN
input on both devices is used to enable or disable the device.
When disabled, all channels are switched off.
When the switches are on, each switch conducts equally well
in both directions and has an input signal range that extends to
the power supplies. In the off condition, signal levels up to the
supplies are blocked. All switches exhibit break-before-make
switching action for use in multiplexer applications. Inherent in
the design is the low charge injection for minimum transients
when switching the digital inputs.
Fast switching speed coupled with high signal bandwidth makes
the parts suitable for video signal switching. CMOS
construction ensures ultra low power dissipation, making the
parts ideally suited for portable and battery-powered
instruments.
PRODUCT HIGHLIGHTS
1. 16-lead TSSOP and 16-lead SOIC_N available.
2. Pin compatible with the ADG508AKR and the
ADG509AKR devices.
3. 3 V, logic-compatible digital input where:
VIH = 2.0 V and VIL = 0.8 V.
4. VL logic power supply not required.
5. Low power consumption.
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 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
©2006 Analog Devices, Inc. All rights reserved.






ADG1308 Datasheet, Funktion
ADG1308/ADG1309
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 3.
Parameter
VDD to VSS
VDD to GND
VSS to GND
Analog, Digital Inputs1
Continuous Current, S or D pins
Peak Current, S or D pins
(Pulsed at 1 ms, 10% Duty
Cycle Maximum)
Operating Temperature Range
Industrial (B Version)
Storage Temperature Range
Junction Temperature
TSSOP, θJA,
Thermal Impedance
16-Lead SOIC, θJA,
Thermal Impedance
Reflow Soldering Peak
Temperature (Pb-free)
Rating
35 V
−0.3 V to +25 V
+0.3 V to −25 V
VSS − 0.3 V to VDD + 0.3 V or
30 mA (whichever occurs first)
30 mA
100 mA
–40°C to +105°C
–65°C to +150°C
150°C
112°C/W
77°C/W
260 (+0/−5)°C
1 Overvoltages at A, EN, S, or D pins are clamped by internal diodes. Current
should be limited to the maximum ratings provided.
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 indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
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. 0 | Page 6 of 16

6 Page









ADG1308 pdf, datenblatt
ADG1308/ADG1309
3V
VIN
VOUT
QINJ = CL × ΔVOUT
ΔVOUT
RS
VS
Figure 19. Charge Injection
VDD
VSS
VDD
A0
VSS
A1
A2
ADG13081
S
EN
VIN
GND
D
VOUT
CL
1nF
1SIMILAR CONNECTION FOR ADG1309.
VDD
0.1µF
VSS
0.1µF
VDD
VSS
S
D
50
GND
NETWORK
ANALYZER
50
VS
RL VOUT
50
NETWORK
ANALYZER
VOUT
RL
50
VS
OFF ISOLATION = 20 log
VOUT
VS
Figure 20. Off Isolation
VDD
0.1µF
VSS
0.1µF
VDD
S1
S2
VSS
D
R
50
GND
CHANNEL-TO-CHANNEL
CROSSTALK
=
20
log
VOUT
VS
Figure 21. Channel-to-Channel Crosstalk
VDD
0.1µF
VSS
0.1µF
VDD
VSS
S
D
GND
NETWORK
ANALYZER
50
VS
RL VOUT
50
INSERTION
LOSS
=
20
log
VOUT WITH SWITCH
VOUT WITHOUT SWITCH
Figure 22. Bandwidth
Rev. 0 | Page 12 of 16

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