AS1751 , AS1752, AS1753
H i g h - Sp e e d , L o w - Vo l ta g e , S i n g l e - S u p p l y,
0 . 9
Ω,
Q u a d S P S 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 AS1751/AS1752/AS1753 are high-speed, low-volt-
age, quad single-pole/single-throw (SPST) 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 single +1.6
to +3.6V supply, and are differentiated by the type and
number of switches:
!
!
!
2 Key Features
!
ON-Resistance:
- 0.9Ω (+3V supply)
- 2.5Ω (+1.8V supply)
R
ON
Matching:
- 0.12Ω (+3V supply)
- 0.25Ω (+1.8V supply)
R
ON
Flatness: 0.1Ω (+3V Supply)
Supply Voltage Range: +1.6 to +3.6V
Switching Speed: t
ON
= 22ns, t
OFF
= 14ns
Current-Handling: 250mA Continuous
Break-Before-Make Switching (AS1753)
Rail-to-Rail Signal Handling
1.8V CMOS Logic Compatible (+3V Supply)
Operating Temperature Range: -40 to +85ºC
Package Types:
- 16-pin TQFN (3mm x 3mm)
- 14-pin TSSOP
!
!
!
!
!
!
!
!
AS1751 – Four normally open (NO) switches
AS1752 – Four normally closed (NC) switches
AS1753 – Two NO switches and Two NC switches
The AS1753 supports break-before-make switching.
With very low ON-resistance (R
ON
), R
ON
matching and
R
ON
flatness, the devices can accurately switch signals
for sample and hold circuits, digital filters, and op-amp
gain switching networks.
The AS1751/AS1752/AS1753 digital logic input is 1.8V
CMOS-compatible when using a +3V supply, and all
devices can handle Rail-to-Rail signals.
The devices are available in a 3mm x 3mm 16-pin TQFN
package and a 14-pin TSSOP package.
Figure 1. 14-pin TSSOP Block Diagrams
AS1751
1
NO1
2
COM1
3
NO2
4
COM2
5
IN2
6
IN3
7
GND
14
V+
13
IN1
12
IN4
11
NO4
10
COM4
9
COM3
8
NO3
1
NC1
2
COM1
3
NC2
4
COM2
5
IN2
6
IN3
7
GND
!
!
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,
hard drives, and any other application where high-speed
signal switching is required.
AS1753
14
V+
13
IN1
12
IN4
11
NC4
10
COM4
9
COM3
8
NC3
1
NO1
2
COM1
3
NC2
4
COM2
5
IN2
6
IN3
7
GND
14
V+
13
IN1
12
IN4
11
NC4
10
COM4
9
COM3
8
NO3
AS1752
Device
AS1751
AS1752
AS1753
Input
Low
High
Low
High
Low
High
Switch State
Off
On
On
Off
Switches 1, 3 = Off
Switches 2, 4 = On
Switches 1, 3 = On
Switches 2, 4 = Off
www.austriamicrosystems.com
Revision 1.41
1 - 16
AMSCO [ AUSTRIAMICROSYSTEMS AG ]
