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Analog Devices - (ADG1233 / ADG1234) CMOS Switches

Numéro de référence ADG1234
Description (ADG1233 / ADG1234) CMOS Switches
Fabricant Analog Devices 
Logo Analog Devices 





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Low Capacitance, Triple/Quad SPDT
±15 V/+12 V i CMOS™ Switches
ADG1233/ADG1234
FEATURES
1.5 pF off capacitance
0.5 pC charge injection
33 V supply range
120 Ω 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, 20-lead TSSOP, and 4 mm × 4 mm LFCSP
Typical power consumption (<0.03 μW)
APPLICATIONS
Audio and video routing
Automatic test equipment
Data acquisition systems
Battery-powered systems
Sample-and-hold systems
Communication systems
GENERAL DESCRIPTION
The ADG1233 and ADG1234 are monolithic iCMOS analog
switches comprising three independently selectable single-pole,
double throw SPDT switches and four independently selectable
SPDT switches, respectively.
All channels exhibit break-before-make switching action
preventing momentary shorting when switching channels.
An EN input on the ADG1233 and ADG1234 is used to
enable or disable the device. When disabled, all channels are
switched off.
The iCMOS (industrial-CMOS) modular manufacturing process
combines a high voltage complementary metal-oxide semi-
conductor (CMOS) and bipolar technologies. It enables the
development of a wide range of high performance analog ICs
capable of 33 V operation in a footprint that no other generation of
high voltage parts has been able to achieve. Unlike analog ICs
using conventional CMOS processes, iCMOS components can
tolerate high supply voltages while providing increased perfor-
mance, dramatically lowered power consumption, and reduced
package size.
The ultralow capacitance and charge injection of these multiplexers
make them ideal solutions for data acquisition and sample-and-
hold applications, where low glitch and fast settling are required.
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
FUNCTIONAL BLOCK DIAGRAMS
ADG1233
S1A
D1
S1B
S2B
D2
S2A
S3B
D3
S3A
LOGIC
IN1 IN2 IN3 EN
SWITCHES SHOWN FOR A LOGIC 1 INPUT
Figure 1.
ADG1234
S1A
D1
S1B
S4A
D4
S4B
S2B
D2
S2A
LOGIC
S3B
D3
S3A
IN1 IN2 IN3 IN4 EN
SWITCHES SHOWN FOR A LOGIC 1 INPUT
Figure 2.
Fast switching speed coupled with high signal bandwidth make the
parts suitable for video signal switching. iCMOS construction
ensures ultralow power dissipation, making the parts ideally
suited for portable and battery-powered instruments.
PRODUCT HIGHLIGHTS
1. 1.5 pF off capacitance (±15 V supply).
2. 0.5 pC charge injection.
3. 3 V logic-compatible digital input, VIH = 2.0 V, VIL = 0.8 V.
4. 16-lead TSSOP, 20-lead TSSOP, and 4 mm × 4 mm LFCSP.
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.

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