austriamicrosystems
Data Sheet
AS1751 , AS1752, AS1753
High-Speed, Low-Voltage, Single-Supply,
0.9Ω, Quad SPST Analog Switches
1 General Description
2 Key Features
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ꢀ
ON-Resistance:
The AS1751/AS1752/AS1753 are high-speed, low-volt-
age, quad single-pole/single-throw (SPST) analog
switches.
- 0.9Ω (+3V supply)
- 2.5Ω (+1.8V supply)
Fast switching speeds, low ON-resistance, and low
power consumption make these devices ideal for single-
cell battery powered applications.
RON Matching:
- 0.12Ω (+3V supply)
- 0.25Ω (+1.8V supply)
These highly-reliable devices operate from a single +1.6
to +3.6V supply, and are differentiated by the type and
number of switches:
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
RON Flatness: 0.1Ω (+3V Supply)
Supply Voltage Range: +1.6 to +3.6V
Switching Speed: tON = 22ns, tOFF = 14ns
Current-Handling: 250mA Continuous
Break-Before-Make Switching (AS1753)
Rail-to-Rail Signal Handling
ꢀ AS1751 – Four normally open (NO) switches
ꢀ AS1752 – Four normally closed (NC) switches
ꢀ AS1753 – Two NO switches and Two NC switches
1.8V CMOS Logic Compatible (+3V Supply)
Operating Temperature Range: -40 to +85ºC
The AS1753 supports break-before-make switching.
With very 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.
Package Types:
- 16-pin QFN (3mm x 3mm)
- 14-pin TSSOP
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.
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.
The devices are available in a 3mm x 3mm 16-pin QFN
package and a 14-pin TSSOP package.
Figure 1. 14-pin TSSOP Block Diagrams
AS1751
AS1752
AS1753
1
NO1
14
V+
1
NC1
14
V+
1
NO1
14
V+
2
13
IN1
2
13
IN1
2
13
IN1
COM1
COM1
COM1
3
NO2
12
IN4
3
NC2
12
IN4
3
NC2
12
IN4
4
11
NO4
4
11
NC4
4
11
NC4
COM2
COM2
COM2
5
IN2
10
COM4
5
IN2
10
COM4
5
IN2
10
COM4
6
IN3
9
6
IN3
9
6
IN3
9
COM3
COM3
COM3
7
GND
8
NO3
7
8
NC3
7
8
NO3
GND
GND
Device
Input
Low
High
Low
Switch State
Off
On
On
Off
AS1751
AS1752
AS1753
High
Low
High
Switches 1, 3 = Off
Switches 1, 3 = On
Switches 2, 4 = On
Switches 2, 4 = Off
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