AS1745 austriamicrosystems, AS1745 Datasheet

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AS1745

Manufacturer Part Number
AS1745
Description
Dual 4 Ohm Spdt Switch
Manufacturer
austriamicrosystems
Datasheet

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A S 1 7 4 4 , A S 1 7 4 5
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
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 single-
cell 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 (R
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.
Figure 1. Block Diagrams
www.austriamicrosystems.com
GND
NO1
NO2
IN1
IN2
1
2
3
4
5
AS1744
ON
), R
ON
10
COM1
9
NC1
8
V+
7
NC2
6
COM2
matching, and R
Switches shown for low input.
High
INx
Low
ON
Revision 1.53
Truth Table
NOx to
COMx
On
Off
2 Key Features
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.
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NCx to
COMx
- 4Ω (+5V supply)
- 5.5Ω (+3V supply)
- 9.5Ω ON-Resistance over Temperature
- 38ns Turn On Time
- 12ns Turn Off Time
- 10-pin MSOP
- 10-pin TDFN
ON-Resistance:
R
R
Supply Voltage Range: +1.8 to +5.5V
1.8V Operation:
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:
On
Off
ON
ON
Matching: 0.2Ω (+5V supply)
Flatness: 1Ω (+5V supply)
GND
NC1
NC2
IN1
IN2
1
2
3
4
5
AS1745
P r o d u c t B r i e f
10
COM1
9
NO1
8
V+
7
NO2
6
COM2
1 - 2

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AS1745 Summary of contents

Page 1

... Ω 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 single- cell battery powered applications ...

Page 2

... AS1744/AS1745 Product Brief Copyrights Copyright © 1997-2007, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, trans- lated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. ...

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