AS1751, AS1752, AS1753
High-Speed, Low-Voltage, Single-Supply,
0.9Ω, Quad SPST Analog Switches
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austriamicrosystems
Data Sheet
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:
! 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 (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 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 QFN
package and a 14-pin TSSOP package.
Figure 1. 14-pin TSSOP Block Diagrams
2 Key Features
! ON-Resistance:
-0.9Ω (+3V supply)
-2.5Ω (+1.8V supply)
! RON Matching:
-0.12Ω (+3V supply)
-0.25Ω (+1.8V supply)
! 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
! 1.8V CMOS Logic Compatible (+3V Supply)
! Operating Temperature Range: -40 to +85ºC
! Package Types:
- 16-pin QFN (3mm x 3mm)
- 14-pin TSSOP
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.
AS1752
1
NC1
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
NC3
AS1753
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
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
Device Input Switch State
AS1751
Low Off
High On
AS1752
Low On
High Off
AS1753
Low Switches 1, 3 = Off Switches 2, 4 = On
High Switches 1, 3 = On Switches 2, 4 = Off