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AS1745

austriamicrosystems
Part Number AS1745
Manufacturer austriamicrosystems
Description (AS1744 / AS1745) SPDT Analog Switches
Published Dec 8, 2006
Detailed Description www.DataSheet4U.com a u s t ri a m i c r o s y s t e m s AS1744 , AS1745 H i g h - Sp e e d , L o w - Vo l ta g e , D u...
Datasheet PDF File AS1745 PDF File

AS1745
AS1745


Overview
www.
DataSheet4U.
com a u s t ri a m i c r o s y s t e m s AS1744 , AS1745 H i g h - Sp e e d , L o w - Vo l ta g e , D u a l , S i n g l e - S u p p l y, 4 Ω, S P D T A n a l o g S w i t c h e s D a ta S he e t 1 General Description The AS1744/AS1745 are high-speed, low-voltage, dual single-pole/double-throw (SPDT) analog switches.
Fast switching speeds, low ON-resistance, and low power-consumption make these devices ideal for singlecell battery powered applications.
These highly-reliable devices operate from a +1.
8 to +5.
5V supply, are differentiated by inverted logic, and support break-before-make switching.
With low ON-resistance (RON), RON matching, and RON flatness, the devices can accurately switch signals for sample and hold circuits, digital filters, and op-amp gain switching networks.
The devices are available in a 10-pin MSOP package and a 10-pin TDFN package.
2 Key Features ! ON-Resistance: - 4Ω (+5V supply) - 5.
5Ω (+3V supply) RON Matching: 0.
2Ω (+5V supply) RON Flatness: 1Ω (+5V supply) Supply Voltage Range: +1.
8 to +5.
5V 1.
8V Operation: - 9.
5Ω ON-Resistance over Temperature - 38ns Turn On Time - 12ns Turn Off Time Current-Handling: 100mA Continuous Break-Before-Make Switching Rail-to-Rail Signal Handling Crosstalk: -90dB at 1MHz Off-Isolation: -85dB at 1MHz Total Harmonic Distortion: 0.
1% Operating Temperature Range: -40 to +85ºC Package Types: - 10-pin MSOP - 10-pin TDFN ! ! ! ! ! ! ! ! ! ! ! ! 3 Applications The devices are ideal for use in power routing systems, cordless and mobile phones, MP3 players, CD and DVD players, PDAs, handheld computers, digital cameras, and any other application where high-speed signal switching is required.
Figure 1.
Block Diagrams 1 IN1 2 NO1 3 GND 4 NO2 5 IN2 10 COM1 9 NC1 1 10 COM1 9 NO1 Truth Table IN1 2 NC1 3 GND 4 NC2 5 IN2 INx Low High NOx to NCx to COMx COMx Off On On Off AS1744 8 V+ 7 NC2 6 COM2 AS1745 8 V+ 7 NO2 6 COM2 Switches shown for low input.
www.
austriamicrosystems.
com Revision 1.
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