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PDF AS1753 Data sheet ( Hoja de datos )
| Número de pieza | AS1753 | |
| Descripción | Quad SPST Analog Switches | |
| Fabricantes | austriamicrosystems AG | |
| Logotipo |  |
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AS1751, AS1752, AS1753
High-Speed, Low-Voltage, Single-Supply,
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
Data Sheet
1 General Description
2 Key Features
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
! 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)
! 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.
! 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
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
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.
AS1751
AS1752
AS1753
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
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
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
1 page  
AS1751/AS1752/AS1753
Data Sheet - Electrical Characteristics
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Table 4. +3V Supply Electrical Characteristics (Continued)
Symbol
Parameter
Conditions
Min Typ Max Unit
f = 10MHz, RLOAD = 50Ω, CLOAD = 5pF, Figure 18
-40
VISO
Off-Isolation 4
dB
f = 1MHz, RLOAD = 50Ω, CLOAD = 5pF, Figure 18
-55
f = 10MHz, RLOAD = 50Ω, CLOAD = 5pF, Figure 18
-70
Crosstalk 5
dB
f = 1MHz, RLOAD = 50Ω, CLOAD = 5pF, Figure 18
-80
THD
Total Harmonic
Distortion
f = 20Hz to 20kHz, VCOMx = 2Vp-p, RLOAD = 32Ω
0.033
%
Logic Input
VIH Input Logic High
1.4 V
VIL Input Logic Low
0.5 V
IIN Input Leakage Current
VINx = 0 or V+
-1 0.0001 +1 µA
V+ = +1.8V, VIH = +1.0V, VIL = 0.4V, TAMB = TMIN to TMAX (unless otherwise specified). Typ values @ TAMB = +25ºC.
Table 5. +1.8V Supply Electrical Characteristics
Symbol
Parameter
Conditions
Min Typ Max Unit
Analog Switch
VCOMx,
VNOx, VNCx
Analog Signal
Range
0 V+ V
RON
ON-Resistance
V+ = 1.8V, ICOMx = 10mA,
VNOx or VNCx = 0.9V
TAMB = +25ºC
TAMB = TMIN to TMAX
0.9 2.5
Ω
3
ΔRON
ON-Resistance
Match Between
Channels 1
V+ = 1.8V, ICOMx = 10mA,
VNOx or VNCx = 0.9V
TAMB = +25ºC
TAMB = TMIN to TMAX
0.05 0.25
Ω
0.25
Switch Dynamic Characteristics
VNOx or VNCx = 1.0V,
TAMB = +25ºC
tON
Turn On Time 3
RLOAD = 50Ω, CLOAD = 35pF,
Figures 13, 14
TAMB = TMIN to TMAX
22 30
ns
35
tOFF
Turn Off Time 3
VNOx or VNCx = 1.0V,
TAMB = +25ºC
RLOAD = 50Ω, CLOAD = 35pF,
Figures 13, 14
TAMB = TMIN to TMAX
12 20
ns
25
Q Charge Injection VGEN = V+, RGEN = 0, CLOAD = 1.0nF, Figure 16
1 pC
Logic Input
VIH Input Logic High
1.0 V
VIL Input Logic Low
0.4 V
IIN
Input Leakage
Current
VINx = 0 or V+
-1 0.0001 +1 µA
1. ΔRON = RON(MAX) - RON(MIN).
2. Flatness is defined as the difference between the maximum and the minimum value of ON-resistance as measured
over the specified analog signal ranges.
3. Guaranteed by design.
4. Off-Isolation = 20log10(VCOMx/VNOx), VCOMx = output, VNOx = input to off switch.
5. Between two switches.
www.austriamicrosystems.com
Revision 1.41
5 - 16
5 Page 
AS1751/AS1752/AS1753
Data Sheet - Application Information
Figure 17. NOx, NCx, and COMx Capacitance
AS1751/
AS1752/
AS1753
V+
V+
COMx
As
Required INx
GND
NCx or
NOx
1MHz
Capacitance
Analyzer
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Figure 18. Off-Isolation, On-Loss, and Crosstalk
NOx
V+
V+
or
NCx
0.1µF
AS1751/
†
AS1752/
AS1753
INx COMx
GND
VIN
VOUT
† Use 50Ω termina-
tion for off-isolation
Network Analyzer
50Ω 50Ω
Measure
Reference
50Ω 50Ω
Notes:
1. Measurements are standardized against short-circuit at socket terminals.
2. Off-isolation is measured between COMx and the off NCx/NOx terminal on each switch. Off-isolation = 20log (VOUT/
VIN).
3. On-loss is measured between COMx and the on NCx/NOx terminal on each switch. On-loss = 20log (VOUT/VIN).
4. Signal direction through the switch is reversed; worst values are recorded.
www.austriamicrosystems.com
Revision 1.41
11 - 16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet AS1753.PDF ] | |
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