UM2268/UM2268A
0.4Ω Ultra Low ON-Resistance, Dual, SPDT Analog Switch
UM2268
QFN10 1.8×
1.4
UM2268A
QFN10 2.1×
1.6
General Description
The UM2268/UM2268A 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/UM2268A 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), while the
UM2268A is available in Pb-free QFN10 package (2.1mm×
1.6mm×
0.55mm).
Applications
Portable Instrumentation
Battery-Operated Equipment
Computer Peripherals
Speaker and Earphone Switching
Medical Equipment
Audio and Video Switching
Features
V
CC
Operating Range: +1.8V to +4.4V
Low On-Resistance: 0.4Ω(TYP) at +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
Pin Configurations
Top View
NC2
2
NO2
GND
COM2
3
4
5
6
IN2
NO1
1
10
9
8
7
IN1
NC1
V+
COM1
M: Month Code
UM2268
QFN10 1.8×
1.4
________________________________________________________________________
http://www.union-ic.com Rev.07 Feb.2014
1/11
UM2268/UM2268A
NO2 NC2 NO1 NC1
AL
GND
V
CC
COM2 IN2
IN1 COM1
M: Month Code
UM2268A
QFN10 2.1×
1.6
Ordering Information
Part Number
UM2268
UM2268A
Packaging Type
QFN10 1.8mm×
1.4mm
QFN10 2.1mm×
1.6mm
Marking Code
AE
AL
Shipping Qty
3000pcs/7 Inch
Tape & Reel
Pin Description
UM2268 UM2268A
1,3
10,2
4
8,5
7,6
9
2,4
1,3
5
9,6
8,7
10
Name
NO1,NO2
NC1,NC2
GND
COM1,COM2
IN1,IN2
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
+
V
IS
V
IN
I
D
I
P
T
O
T
STG
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 (V
CC
+ 0.3)
0 to + 4.6
250
350
- 40 to +85
- 65 to +150
4000
Unit
V
mA
mA
°
C
V
________________________________________________________________________
http://www.union-ic.com Rev.07 Feb.2014
2/11
M
UM2268/UM2268A
Electrical Characteristics
V+ = +4.4V, GND = 0V, T
A
= -40° to + 85° Unless otherwise noted.
C
C.
Symbol
Parameter
Power Supply
Range
Quiescent Supply
Current
Input Leakage
Current
Power Off
Leakage Current
Channel ON
Leakage Current
On-Resistance
(Note2)
On Resistance
Match Between
Channels
(Note2,3,4)
On Resistance
Flatness
(Note2,3,5)
Input High
Voltage
Input Low Voltage
V
IN
=2.1V to 0V,
R
L
=50Ω,C
L
=35pF,
V
NO1,
or V
NC1
= V
NO2,
or
V
NC2
=2.1V,Test Circuit1
V
IN
=2.1V to 0V,
R
L
=50Ω,C
L
=35pF,
V
NO1,
or V
NC1
= V
NO2,
or
V
NC2
=2.1V,Test Circuit1
V
IN
=2.1V to 0V,
R
L
=50Ω,C
L
=35pF,
V
NO1,
or V
NC1
= V
NO2,
or
V
NC2
=2.1V,Test Circuit2
V
BIAS
=2.1V,
Signal=0dBm,
Test Circuit3
V
BIAS
=2.1V,
Signal =0dBm,
Test Circuit4
100kHz
4.4
1MHz
100kHz
4.4
1MHz
4.4
Room
Room
-90
80
dB
MHz
Room
Room
-58
-93
dB
dB
Test Conditions
Vcc
(V)
Limits (–40 to 85 °
C)
Temp
Min
Full
V
IN
=V
+
or 0
V
IN
=0V/4.4V
V
NO
/V
NC
=3.3V/0.3V,
V
COM
=0.3V/3.3V
V
COM
=0.3V/3.3V
V
NO
or V
NC
=0.3V/3.3V, or
floating
V
NO,
V
NC
or V
COM
=1.0V,
I
COM
=-100mA
V
NO,
V
NC
or V
COM
=1.0V,
I
COM
=-100mA
V
NO,
V
NC
or V
COM
=1.0V,2.5V
I
COM
=-100mA
4.4
4.4
4.4
4.4
Full
Full
Full
Full
Room
Full
Room
Full
Room
Full
Full
Full
2.0
0.5
0.4
1.8
Typ
(Note1)
Unit
Max
4.4
1.0
1.0
1.0
1.0
0.75
0.85
0.15
0.20
0.12
0.20
V
μA
μA
μA
μA
V+
I
CC
I
IN
I
OFF
I
ON
R
ON
4.4
Ω
ΔR
ON
4.4
0.04
Ω
R
FLAT
V
IH
V
IL
4.4
4.4
4.4
0.08
Ω
V
V
t
ON
Turn On Time
4.4
Room
88
ns
t
OFF
Turn Off Time
4.4
Room
16
ns
t
BBM
Break Before
Make Time
(Note 6)
Off Isolation
(Note 7)
4.4
Room
6
ns
Room
-78
dB
O
IRR
X
TALK
Crosstalk
BW
Q
-3dB Bandwidth
V
BIAS
=2.1V, Signal = 0dBm,
Test Circuit5
Charge Injection
V
G
=0V,R
S
=0Ω,
Select Input to
4.4
Room
4.0
pC
C
L
=1.0nF,Test Circuit6
Common I/O
HSD+ HSD- ON
C
ON
Capacitance
4.4
Room
56
pF
(Note8)
1: Typically values are at V
+
=4.4V and T
A
=+25
℃
.
2: Guaranteed by design. Resistance measurements do not include test circuit or package resistance.
3: Parameter is characterized but not tested in production.
4: ΔR
ON
=
︱R
ON (NO1/NC1)
– R
ON(NO2/NC2)
︱measured
at identical V
CC
, temperature and voltage levels.
5: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of
conditions.
6: Guaranteed by Design.
7: Off Isolation = 20 log10 [V
COM
/V
NO/NC
].
8: T
A
= +25, f = 1 MHz, Capacitance is characterized but not tested in production.
________________________________________________________________________
http://www.union-ic.com Rev.07 Feb.2014
3/11
UM2268/UM2268A
Electrical Characteristics
V+ = +2.7V to +3.6V, T
A
= -40° to + 85° Unless otherwise noted.
C
C.
Symbol
V
NO
,V
NC
,
V
COM
I
IN
I
OFF
I
ON
Parameter
Analog Signal
Range
Input Leakage
Current
Power Off
Leakage Current
Channel ON
Leakage Current
On-Resistance
(Note2)
On Resistance
Match Between
Channels
(Note2,3,4)
On Resistance
Flatness
(Note2,3,5)
Input High
Voltage
Input Low Voltage
V
IN
=1.5V to 0V,
R
L
=50Ω,C
L
=35pF,
V
NO1,
or V
NC1
= V
NO2,
or
V
NC2
=1.5V,Test Circuit1
V
IN
=1.5V to 0V,
R
L
=50Ω,C
L
=35pF,
V
NO1,
or V
NC1
= V
NO2,
or
V
NC2
=1.5V,Test Circuit1
V
IN
=1.5V to 0V,
R
L
=50Ω,C
L
=35pF,
V
NO1,
or V
NC1
= V
NO2,
or
V
NC2
=1.5V,Test Circuit2
V
BIAS
=2.1V,
Signal = 0dBm,
Test Circuit3
V
BIAS
=2.1V,
Signal = 0dBm,
Test Circuit4
100kHz
3.0
1MHz
100kHz
3.0
1MHz
3.0
3.0
Room
Room
Room
-90
80
3.0
dB
MHz
pC
Room
Room
-58
-93
dB
dB
Test Conditions
Vcc
(V)
Limits (–40 to 85 °
C)
Temp
Min
Full
V
IN
=0V/2.7V
V
NO
/V
NC
=3.3V/0.3V,
V
COM
=0.3V/3.3V
V
COM
=0.3V/3.3V
V
NO
or V
NC
=0.3V/3.3V,
floating
V
NO,
V
NC
or V
COM
=1.0V,
I
COM
=-100mA
V
NO,
V
NC
or V
COM
=1.0V,
I
COM
=-100mA
V
NO,
V
NC
or V
COM
=1.0V,2.5V
I
COM
=-100mA
2.7
3.6
or
3.6
Full
Full
Full
Room
Full
Room
Full
Room
Full
Full
Full
1.5
0.4
0.75
0
Typ
(Note1)
Unit
Max
V+
1.0
1.0
1.0
1.10
1.20
0.15
0.20
0.18
0.20
V
μA
μA
μA
R
ON
2.7
Ω
ΔR
ON
2.7
0.03
Ω
R
FLAT
V
IH
V
IL
2.7
3.0
3.0
0.10
Ω
V
V
t
ON
Turn On Time
3.0
Room
100
ns
t
OFF
Turn Off Time
3.0
Room
20
ns
t
BBM
Break Before
Make Time
(Note 6)
Off Isolation
(Note 7)
3.0
Room
9.2
ns
Room
-78
dB
O
IRR
X
TALK
Crosstalk
BW
Q
-3dB Bandwidth
Charge Injection
Select Input to
Common I/O
HSD+ HSD- ON
Capacitance
(Note8)
V
BIAS
=2.1V,
Signal=0dBm,
Test Circuit5
V
G
=0V,R
S
=0Ω,
C
L
=1.0nF,
Test Circuit6
C
ON
3.0
Room
56
pF
1: T
A
=+25
℃
.
2: Guaranteed by design. Resistance measurements do not include test circuit or package resistance.
3: Parameter is characterized but not tested in production.
4: ΔR
ON
=︱R
ON (NO1/NC1)
– R
ON(NO2/NC2)
︱measured
at identical V
CC
, temperature and voltage levels.
5: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of
conditions.
6: Guaranteed by Design.
7: Off Isolation = 20 log10 [V
COM
/V
NO/NC
].
8: T
A
= +25, f = 1 MHz, Capacitance is characterized but not tested in production.
________________________________________________________________________
http://www.union-ic.com Rev.07 Feb.2014
4/11
UM2268/UM2268A
Typical Operating Characteristics
( T
A
=+25℃. Unless otherwise noted. )
________________________________________________________________________
http://www.union-ic.com Rev.07 Feb.2014
5/11
stm32/stm8
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