UM2268
0.4Ω Ultra Low ON-Resistance, Dual, SPDT Analog Switch
UM2268 QFN10 1.8×1.4
General Description
The UM2268 is a dual, low-power single-pole/double-throw (SPDT) analog switch that operates
from a single +1.8V to +4.4V supply.
The UM2268 features guaranteed on-resistance matching (0.04Ω TYP) between switches and
guaranteed on resistance flatness over the signal range (0.08Ω TYP), as well as high off-isolation
and low crosstalk. This ensures excellent linearity and low distortion when switching audio signals.
The UM2268 is available in Pb-free QFN10 package (1.8mm×1.4mm×0.55mm).
Applications
Features
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Portable Instrumentation
Battery-Operated Equipment
Computer Peripherals
Speaker and Earphone Switching
Medical Equipment
Audio and Video Switching
Pin Configurations
VCC Operating Range: +1.8V to +4.4V
Low On-Resistance: 0.4Ω (TYP) @ +4.4V
On-Resistance Matching: 0.04Ω (TYP)
On-Resistance Flatness: 0.08Ω (TYP)
-3dB Bandwidth: 80MHz
Low Off-Isolation: -78dB (100kHz)
Low Crosstalk: -93dB (100kHz)
TTL/CMOS Compatible
Break-Before-Make Switching
Rail-to-Rail Input and Output Operation
Lead (Pb)-Free QFN10 Package
Top View
(Top View)
M: Month Code
UM2268
QFN10 1.8×1.4
Ordering Information
Part Number
Packaging Type
Marking Code
UM2268
QFN10 1.8×1.4
AE
Shipping Qty
3000pcs/7 Inch
Tape & Reel
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UM2268
Pin Description
Pin Number
1, 3
10, 2
4
8, 5
Pin Name
NO1, NO2
NC1, NC2
GND
COM1, COM2
7, 6
IN1, IN2
9
V+
Function
Normally-Open Terminal
Normally-Closed Terminal
Ground
Common Terminal
Digital Control Pin to Connect the COM Terminal to the NO
or NC Terminals
Power Supply
Function Table
LOGIC
0
1
NO
OFF
ON
NC
ON
OFF
Absolute Maximum Ratings
Symbol
V+
VIS
VIN
ID
IP
TO
TSTG
ESD
Parameter
Supply Voltage
Analog Switch Input Voltage
Digital Select Input Voltage
Continuous DC Current
Peak Current
Operating Temperature Range
Storage Temperature Range
HBM
Limit
0 to +4.6
-0.3 to (VCC+0.3)
0 to +4.6
250
350
-40 to +85
-65 to +150
4000
Unit
V
mA
mA
°C
V
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UM2268
Electrical Characteristics
V+=+4.4V, GND=0V, TA=-40°C to +85°C, unless otherwise noted.
Symbol
V+
ICC
IIN
IOFF
Parameter
Power Supply
Range
Quiescent Supply
Current
Input Leakage
Current
Power Off Leakage
Current
ION
Channel ON
Leakage Current
RON
On-Resistance
(Note 2)
ΔRON
RFLAT
On Resistance
Match Between
Channels
(Note 2, 3, 4)
On Resistance
Flatness
(Note 2, 3, 5)
Test Conditions
Vcc
(V)
Limits (-40°C to 85°C)
Temp
Min
Full
Typ
(Note 1)
1.8
Unit
Max
4.4
V
VIN=V+ or 0
4.4
Full
1.0
μA
VIN=0V/4.4V
4.4
Full
1.0
μA
4.4
Full
1.0
μA
4.4
Full
1.0
μA
VNO,VNC or VCOM=1.0V,
ICOM=-100mA
4.4
Room
Full
0.4
0.75
0.85
Ω
VNO,VNC or VCOM=1.0V,
ICOM=-100mA
4.4
Room
Full
0.04
0.15
0.20
Ω
VNO,VNC or VCOM=1.0V, 2.5V
ICOM=-100mA
4.4
Room
Full
0.08
0.12
0.20
Ω
VNO/VNC=3.3V/0.3V,
VCOM=0.3V/3.3V
VCOM=0.3V/3.3V
VNO or VNC=0.3V/3.3V, or
Floating
VIH
Input High Voltage
4.4
Full
VIL
Input Low Voltage
4.4
Full
tON
Turn On Time
4.4
Room
88
ns
tOFF
Turn Off Time
4.4
Room
16
ns
tBBM
Break Before Make
Time
(Note 6)
4.4
Room
6
ns
OIRR
Off Isolation
(Note 7)
VBIAS=2.1V,
Signal=0dBm,
Test Circuit 3
100kHz
Room
-78
dB
Room
-58
dB
Crosstalk
VBIAS=2.1V,
Signal=0dBm,
Test Circuit 4
100kHz
Room
-93
dB
Room
-90
dB
Room
80
MHz
XTALK
BW
-3dB Bandwidth
VIN=2.1V to 0V,
RL=50Ω, CL=35pF,
VNO1 or VNC1=VNO2 or
VNC2=2.1V, Test Circuit 1
VIN=2.1V to 0V,
RL=50Ω, CL=35pF,
VNO1 or VNC1=VNO2 or
VNC2=2.1V, Test Circuit 1
VIN=2.1V to 0V,
RL=50Ω, CL=35pF,
VNO1 or VNC1=VNO2 or
VNC2=2.1V, Test Circuit 2
4.4
1MHz
4.4
1MHz
VBIAS=2.1V, Signal=0dBm,
Test Circuit 5
4.4
2.0
V
0.5
V
Charge Injection
VG=0V, RS=0Ω,
Select Input to
4.4
Room
4.0
pC
CL=1.0nF, Test Circuit 6
Common I/O
HSD+ HSD- ON
CON
Capacitance
4.4
Room
56
pF
(Note 8)
Note 1: Typically values are at V+=4.4V and TA=+25°C.
Note 2: Guaranteed by design. Resistance measurements do not include test circuit or package resistance.
Note 3: Parameter is characterized but not tested in production.
Note 4: ΔRON=︱RON (NO1/NC1) – RON(NO2/NC2)︱measured at identical VCC, temperature and voltage levels.
Note 5: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of
conditions.
Note 6: Guaranteed by design.
Note 7: Off Isolation=20 log10 [VCOM/VNO/NC].
Note 8: TA=+25°C, f=1MHz, Capacitance is characterized but not tested in production.
Q
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UM2268
Electrical Characteristics
V+=+2.7V to +3.6V, TA=-40°C to +85°C, unless otherwise noted.
Symbol
VNO, VNC,
VCOM
IIN
IOFF
Parameter
Analog Signal
Range
Input Leakage
Current
Power Off Leakage
Current
ION
Channel ON
Leakage Current
RON
On-Resistance
(Note 2)
ΔRON
RFLAT
On Resistance
Match Between
Channels
(Note 2, 3, 4)
On Resistance
Flatness
(Note 2, 3, 5)
Test Conditions
Vcc
(V)
Limits (-40°C to 85°C)
Temp
Min
Full
VIN=0V/2.7V
Typ
(Note 1)
0
Unit
Max
V+
V
2.7
Full
1.0
μA
3.6
Full
1.0
μA
3.6
Full
1.0
μA
VNO,VNC or VCOM=1.0V,
ICOM=-100mA
2.7
Room
Full
0.75
1.10
1.20
Ω
VNO,VNC or VCOM=1.0V,
ICOM=-100mA
2.7
Room
Full
0.03
0.15
0.20
Ω
VNO,VNC or VCOM=1.0V, 2.5V
ICOM=-100mA
2.7
Room
Full
0.10
0.18
0.20
Ω
VNO/VNC=3.3V/0.3V,
VCOM=0.3V/3.3V
VCOM=0.3V/3.3V
VNO or VNC=0.3V/3.3V, or
Floating
VIH
Input High Voltage
3.0
Full
VIL
Input Low Voltage
3.0
Full
tON
Turn On Time
3.0
Room
100
ns
tOFF
Turn Off Time
3.0
Room
20
ns
tBBM
Break Before Make
Time
(Note 6)
3.0
Room
9.2
ns
Off Isolation
(Note 7)
VBIAS=2.1V,
Signal=0dBm,
Test Circuit 3
100kHz
Room
-78
dB
OIRR
Room
-58
dB
VBIAS=2.1V,
Signal=0dBm,
Test Circuit 4
100kHz
Room
-93
dB
Crosstalk
Room
-90
dB
Room
80
MHz
XTALK
BW
-3dB Bandwidth
VIN=1.5V to 0V,
RL=50Ω, CL=35pF,
VNO1 or VNC1=VNO2 or
VNC2=1.5V, Test Circuit 1
VIN=1.5V to 0V,
RL=50Ω, CL=35pF,
VNO1 or VNC1=VNO2 or
VNC2=1.5V, Test Circuit 1
VIN=1.5V to 0V,
RL=50Ω, CL=35pF,
VNO1 or VNC1=VNO2 or
VNC2=1.5V, Test Circuit 2
1.5
V
0.4
V
3.0
1MHz
3.0
1MHz
VBIAS=2.1V, Signal=0dBm,
Test Circuit 5
3.0
Charge Injection
VG=0V, RS=0Ω,
Select Input to
3.0
Room
3.0
pC
CL=1.0nF, Test Circuit 6
Common I/O
HSD+ HSD- ON
CON
Capacitance
3.0
Room
56
pF
(Note 8)
Note 1: TA=+25°C.
Note 2: Guaranteed by design. Resistance measurements do not include test circuit or package resistance.
Note 3: Parameter is characterized but not tested in production.
Note 4: ΔRON=︱RON (NO1/NC1) – RON(NO2/NC2)︱measured at identical VCC, temperature and voltage levels.
Note 5: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of
conditions.
Note 6: Guaranteed by design.
Note 7: Off Isolation=20 log10 [VCOM/VNO/NC].
Note 8: TA=+25°C, f=1MHz, Capacitance is characterized but not tested in production.
Q
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UM2268
Typical Operating Characteristics
(TA=+25°C, unless otherwise noted. )
NC
RDSONON
NC RDS
NO
NORDS
RDSON
ON
2.7
2.7
VVCC=1.8V
CC=1.8V
VVCC=2.7V
CC=2.7V
VVCC=3.6V
CC=3.6V
VVCC=4.2V
CC=4.2V
VCC=4.4V
2.4
2.1
2.1
1.8
VCC=4.4V
RDS ON (Ω)
RDS ON (Ω)
1.8
VVCC=1.8V
CC=1.8V
VVCC=2.7V
CC=2.7V
VVCC=3.6V
CC=3.6V
VVCC=4.2V
CC=4.2V
VVCC=4.4V
CC=4.4V
2.4
1.5
1.2
1.5
1.2
0.9
0.9
0.6
0.6
0.3
0.3
0.0
0.0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0
0.5
1
1.5
2
VCOM (V)
1.0
1.0
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
RON (Ω)
RON (Ω)
3
3.5
4
4.5
NO NO
RONRON
vs.vs.VVCOM
(Temp)
COM (Temp)
NCNC
RON
(Temp)
R ONvs.
vs. V
VCOM
COM(Temp)
0.5
0.5
0.4
0.4
0.3
0.3
VCC=3.6V,-40℃
VCC=3.6V, -40°C
0.2
VCC=3.6V,-40℃
VCC=3.6V, -40°C
0.2
VCC=3.6V,25℃
VCC=3.6V, 25°C
0.1
VCC=3.6V, 25°C
VCC=3.6V,25℃
0.1
VCC=3.6V, 85°C
VCC=3.6V,85℃
0.0
VCC=3.6V, 85°C
VCC=3.6V,85℃
0.0
0
0.6
1.2
1.8
VCOM (V)
2.4
3
3.6
0
0.6
1.2
1.8
VCOM (V)
2.4
3
3.6
NONO
RON
(Temp)
R ONvs.
vs. V
VCOM
COM (Temp)
NCNC
RON
(Temp)
RONvs.
vs.V
VCOM
COM (Temp)
1.0
1.0
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
RON (Ω)
RON (Ω)
2.5
VCOM (V)
0.5
0.5
0.4
0.4
0.3
0.3
VCC=4.2V,-40℃
VCC=4.2V, -40°C
0.2
0.1
VCC=4.2V,-40℃
V =4.2V, -40°C
0.2
VCC=4.2V,25℃
VCC=4.2V, 25°C
CC
VCC=4.2V,25℃
VCC=4.2V, 25°C
0.1
VCC=4.2V, 85°C
VCC=4.2V,85℃
VCC=4.2V, 85°C
VCC=4.2V,85℃
0.0
0.0
0
0.5
1
1.5
2
2.5
VCOM (V)
3
3.5
4
4.5
0
0.5
1
1.5
2
2.5
VCOM (V)
3
3.5
4
4.5
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UM2268
Typical Operating Characteristics (Continued)
(TA=+25°C, unless otherwise noted. )
1.0
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
RON (Ω)
RON (Ω)
NCNC
RON
(Temp)
RONvs.
vs.V
VCOM
COM (Temp)
1.0
0.5
0.5
0.4
0.4
0.3
0.3
0.2
VCC=4.4V,-40℃
VCC=4.4V, -40°C
0.1
VCC=4.4V, 25°C
VCC=4.4V,25℃
VCC=4.4V, 85°C
VCC=4.4V,85℃
NONO
RON
vs.
(Temp)
RON
vs.VVCOM
COM (Temp)
VCC=4.4V,-40℃
0.2
VCC=4.4V, -40°C
VCC=4.4V,25℃
VCC=4.4V, 25°C
0.1
VCC=4.4V, 85°C
VCC=4.4V,85℃
0.0
0.0
0
0.5
1
1.5
2
2.5
VCOM (V)
3
3.5
4
4.5
0
0.5
1
1.5
2
2.5
VCOM (V)
3
3.5
4
Bandwidth
Logic
Threshold
SupplyVoltage
Voltage
Logic
Thresholdvs.
vs. Supply
2.0
VTH+
VTH+
VTHVTH-
Logic Threshold (V)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
1.5
2
2.5
3
3.5
Supply Voltage (V)
Crosstalk
4
4.5
Off Isolation
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4.5
UM2268
Test Circuits
Test Circuit 1. Switching Timing (tON, tOFF)
Test Circuit 2. Break-Before-Make Timing
Network Analyzer
RS
COM
VIN
IN=0V/VCC
RT
VS
GND
Vsel
NO/NC
GND
GND
VOUT
GND
GND
Off-isolation=20Log(VOUT/VIN)
RT
GND
Test Circuit 3. Off-Isolation
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UM2268
Test Circuit 4. Channel-to-Channel Crosstalk
Network Analyzer
RS
COM
VIN
IN=0V/VCC
VS
GND
Vsel
GND
NC/NO
GND
VOUT
GND
RT
GND
Test Circuit 5. Bandwidth
Test Circuit 6. Charge Injection Test
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UM2268
Package Information
UM2268 QFN10 1.8×1.4
Outline Drawing
DIMENSIONS
Symbol
Typ
Max
Min
Typ
A
0.50
0.55
0.60
0.020
0.022
0.024
A1
0.00
-
0.05
0.000
-
0.002
A3
A
0.15REF
A3
Max
0.006REF
b
0.15
0.20
0.25
0.006
0.008
0.010
D
1.35
1.40
1.45
0.053
0.055
0.057
E
1.75
1.80
1.85
0.069
0.071
0.073
e
A1
INCHES
Min
L
e
E
MILLIMETERS
0.40BSC
0.016BSC
L
0.30
0.40
0.50
0.012
0.016
0.020
L1
0.40
0.50
0.60
0.016
0.020
0.024
Land Pattern
NOTES:
1. Compound dimension: 1.80×1.40;
2. Unit: mm
3. General tolerance ±0.05mm unless otherwise
specified;
4. The layout is just for reference.
Tape and Reel Orientation
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UM2268
GREEN COMPLIANCE
Union Semiconductor is committed to environmental excellence in all aspects of its
operations including meeting or exceeding regulatory requirements with respect to the use
of hazardous substances. Numerous successful programs have been implemented to reduce
the use of hazardous substances and/or emissions.
All Union components are compliant with the RoHS directive, which helps to support
customers in their compliance with environmental directives. For more green compliance
information, please visit:
http://www.union-ic.com/index.aspx?cat_code=RoHSDeclaration
IMPORTANT NOTICE
The information in this document has been carefully reviewed and is believed to be accurate.
Nonetheless, this document is subject to change without notice. Union assumes no
responsibility for any inaccuracies that may be contained in this document, and makes no
commitment to update or to keep current the contained information, or to notify a person or
organization of any update. Union reserves the right to make changes, at any time, in order
to improve reliability, function or design and to attempt to supply the best product possible.
Union Semiconductor, Inc
Add: Unit 606, No.570 Shengxia Road, Shanghai 201210
Tel: 021-51093966
Fax: 021-51026018
Website: www.union-ic.com
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