SGM2268
0.4Ω Ultra Low ON-Resistance,
Dual, SPDT Analog Switch
GENERAL DESCRIPTION
The SGM2268 is a dual single-pole/double-throw
(SPDT) analog switch that is designed to operate from
a single +1.8V to +4.2V power supply. Targeted
applications include battery powered equipment that
benefit from ultra low on-resistance (0.4Ω) and fast
switching speeds.
SGM2268 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 SGM2268 is a committed dual single-pole/double
-throw (SPDT) that consist of two normally open (NO)
and
two
normally
close
(NC)
switches.
This
configuration can be used as a dual 2-to-1 multiplexer.
SGM2268 is available in Green TQFN-1.8×1.4-10L
package.
NO2
GND
COM2
3
4
FEATURES
●
Voltage Operation: +1.8V to +4.2V
●
Ultra Low On-Resistance: 0.4Ω (TYP) at +4.2V
●
On-Resistance Matching : 0.04Ω (TYP)
●
On-Resistance Flatness: 0.08Ω (TYP)
●
-3dB Bandwidth: 40MHz
●
High Off-Isolation: -78dB at 100kHz
●
Low Crosstalk: -103dB at 100kHz
●
Rail-to-Rail Input and Output Operation
●
TTL/CMOS Compatible
●
Break-Before-Make Switching
●
Extended Industrial Temperature Range:
-40℃ to +85℃
●
Available in Green TQFN-1.8×1.4-10L Package
PIN CONFIGURATION
(TOP VIEW)
NC2
2
NO1
1
10
9
8
6
IN2
7
IN1
NC1
V
+
COM1
5
APPLICATIONS
Portable Instrumentation
Battery-Operated Equipment
Computer Peripherals
Speaker and Earphone Switching
Medical Equipment
Audio and Video Switching
TQFN-1.8×1.4-10L
FUNCTION TABLE
LOGIC
0
1
NO
OFF
ON
NC
ON
OFF
Switches Shown For Logic “0” Input.
SG Micro Limited
www.sg-micro.com
REV. A. 3
SGM2268
PACKAGE/ORDERING INFORMATION
MODEL
SGM2268
PIN-
PACKAGE
TQFN-1.8×1.4-10L
SPECIFIED
TEMPERATURE
RANGE
-40℃ to +85℃
0.4Ω Ultra Low ON-Resistance,
Dual, SPDT Analog Switch
ORDERING
NUMBER
SGM2268YWQ10/TR
PACKAGE
MARKING
2268
PACKAGE
OPTION
Tape and Reel, 3000
ABSOLUTE MAXIMUM RATINGS
V
+
, IN to GND.............................................................0V to 4.6V
(1)
Analog, Digital voltage range ................... -0.3V to (V
+
) + 0.3V
Continuous Current NO, NC, or COM...........................±250mA
Peak Current NO, NC, or COM.....................................±350mA
Operating Temperature Range...........................-40℃ to +85℃
Junction Temperature.......................................................150℃
Storage Temperature.......................................-65℃ to +150℃
Lead Temperature (soldering, 10s)................................. 260℃
ESD Susceptibility
HBM.................................................................................4000V
MM.....................................................................................400V
NOTES:
1. Signals on NC, NO, or COM or IN exceeding V
+
will be clamped by internal diodes. Limit forward diode current to maximum current
ratings.
2. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections
of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
CAUTION
This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all
integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause
damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric changes could cause the device not to meet its published
specifications.
SGMICRO reserves the right to make any change in circuit design, specification or other related things if necessary without notice at
any time. Please contact SGMICRO sales office to get the last datasheet.
PIN DESCRIPTION
PIN
9
4
7,6
8,5
1,3
10,2
NAME
V
+
GND
IN1, IN2
COM1, COM2
NO1, NO2
NC1, NC2
FUNCTION
Power supply
Ground
Digital control pin to connect the COM terminal to the NO or NC terminals
Common terminal
Normally-open terminal
Normally-closed terminal
NOTE: NO, NC and COM terminals may be an input or output.
SG Micro Limited
www.sg-micro.com
2
SGM2268
0.4Ω Ultra Low ON-Resistance,
Dual, SPDT Analog Switch
ELECTRICAL CHARACTERISTICS
(V
+
= +4.2V, GND = 0V, V
IH
= +1.6V, V
IL
= +0.6V, T
A
= -40℃ to + 85℃. Typical values are at V
+
= +4.2V, T
A
= +25℃, unless otherwise
noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
MIN TYP MAX UNITS
ANALOG SWITCH
Analog Signal Range
On-Resistance
On-Resistance Match
Between Channels
On-Resistance
Flatness
Source OFF Leakage
Current
Channel ON Leakage
Current
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage Current
V
INH
V
INL
I
IN
V
+
= 4.2V, V
IN
= 0V or 4.2V
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
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
IN
= 2.1V to 0V, R
L
= 50Ω, C
L
= 35pF,
V
NO1
or V
NC1
= V
NO2
or V
NC2
= 2.1V,
Test Circuit3
V
BIAS
= 2.1V, Signal = 0dBm, 100kHz
Test Circuit4
1MHz
V
BIAS
= 2.1V, Signal = 0dBm, 100kHz
Test Circuit5
1MHz
V
BIAS
= 2.1V, Signal = 0dBm,
Test Circuit6
V
G
= 0V, Rs = 0Ω, C
L
=1.0nF,
Test Circuit7
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
1.6
0.5
1
V
V
µA
V
NO
, V
NC
, V
COM
R
ON
∆R
ON
R
FLAT(ON)
I
NC(OFF)
, I
NO(OFF)
I
NC(ON)
, I
NO(ON)
,
I
COM(ON)
V
+
= 4.2V, V
NO
, V
NC
or V
COM
= 1V,
I
COM
= -100mA, Test Circuit 1
V
+
= 4.2V, V
NO
, V
NC
or V
COM
= 1V,
I
COM
= -100mA, Test Circuit 1
V
+
= 4.2V, V
NO
, V
NC
or V
COM
= 1V, 2.5V,
I
COM
= -100mA, Test Circuit 1
V
+
= 4.2V, V
NO
or V
NC
= 3.3V/ 0.3V,
V
COM
= 0.3V/ 3.3V
V
+
= 4.2V, V
COM
= 0.3V/ 3.3V,
V
NO
or V
NC
= 0.3V/ 3.3V, or floating
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
0.08
0.04
0
0.4
V
+
0.65
0.75
0.15
0.2
0.12
0.2
1
1
V
Ω
Ω
Ω
Ω
Ω
Ω
µA
µA
DYNAMIC CHARACTERISTICS
Turn-On Time
t
ON
+25℃
88
ns
Turn-Off Time
Break-Before-Make
Time Delay
Off Isolation
Channel-to-Channel
Crosstalk
-3dB Bandwidth
Charge Injection Select
Input to Common I/O
Channel ON
Capacitance
POWER REQUIREMENTS
Power Supply Range
Power Supply Current
t
OFF
+25℃
16
ns
t
D
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
6.0
-78
-58
-103
-90
40.0
4.0
106
ns
dB
dB
dB
dB
MHz
pC
pF
O
ISO
X
TALK
BW
Q
C
ON
V
+
I
+
V
+
= 4.2V, V
IN
= 0V or V
+
-40℃ to +85℃
-40℃ to +85℃
1.8
4.2
1
V
µA
SG Micro Limited
www.sg-micro.com
3
SGM2268
0.4Ω Ultra Low ON-Resistance,
Dual, SPDT Analog Switch
ELECTRICAL CHARACTERISTICS
(V
+
= +2.7V to +3.6V, GND = 0V, V
IH
= +1.6V, V
IL
= +0.4V, T
A
= -40℃ to + 85℃. Typical values are at V
+
= +3.0V, T
A
= +25℃, unless
otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
MIN TYP MAX UNITS
ANALOG SWITCH
Analog Signal Range
On-Resistance
On-Resistance Match
Between Channels
On-Resistance
Flatness
Source OFF Leakage
Current
Channel ON Leakage
Current
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage Current
V
INH
V
INL
I
IN
V
+
= 2.7V, V
IN
= 0V or 2.7V
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
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
IN
= 1.5V to 0V, R
L
= 50Ω, C
L
= 35pF,
V
NO1
or V
NC1
= V
NO2
or V
NC2
=1.5V,
Test Circuit3
V
BIAS
= 2.1V, Signal = 0dBm,
Test Circuit4
V
BIAS
= 2.1V, Signal = 0dBm,
Test Circuit5
V
BIAS
= 2.1V, Signal = 0dBm,
Test Circuit6
V
G
= 0V, Rs = 0Ω, C
L
= 1.0nF,
Test Circuit7
100kHz
1MHz
100kHz
1MHz
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
1.5
0.4
1
V
V
µA
V
NO
, V
NC
, V
COM
R
ON
∆R
ON
R
FLAT(ON)
I
NC(OFF)
, I
NO(OFF)
I
NC(ON)
, I
NO(ON)
,
I
COM(ON)
V
+
= 2.7V, V
NO
, V
NC
or V
COM
= 1V,
I
COM
= -100mA, Test Circuit 1
V
+
= 2.7V, V
NO
, V
NC
or V
COM
= 1V,
I
COM
= -100mA, Test Circuit 1
V
+
= 2.7V, V
NO
, V
NC
or V
COM
= 1V, 2.5V,
I
COM
= -100mA, Test Circuit 1
V
+
= 3.6V, V
NO
or V
NC
= 3.3V / 0.3V,
V
COM
= 0.3V/ 3.3V
V
+
= 3.6V, V
COM
= 0.3V/ 3.3V,
V
NO
or V
NC
= 0.3V/ 3.3V, or floating
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
0.1
0.03
0
0.5
V
+
0.7
0.8
0.15
0.2
0.18
0.2
1
1
V
Ω
Ω
Ω
Ω
Ω
Ω
µA
µA
DYNAMIC CHARACTERISTICS
Turn-On Time
t
ON
+25℃
100
ns
Turn-Off Time
Break-Before-Make
Time Delay
Off Isolation
Channel-to-Channel
Crosstalk
-3dB Bandwidth
Charge Injection Select
Input to Common I/O
Channel ON
Capacitance
t
OFF
+25℃
20
ns
t
D
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
9.2
-78
-58
-103
-90
40
3.0
106
ns
dB
dB
dB
dB
MHz
pC
pF
O
ISO
X
TALK
BW
Q
C
ON
SG Micro Limited
www.sg-micro.com
4
SGM2268
0.4Ω Ultra Low ON-Resistance,
Dual, SPDT Analog Switch
TYPICAL PERFORMANCE CHARACTERISTICS
On Response vs. Frequency
3
V
+
= +4.2V
T
A
= +25℃
On Response vs. Frequency
3
V
+
= +3V
T
A
= +25℃
On Response (dB)
On Response (dB)
0
0
-3
-3
-6
-6
-9
0.1
1
10
100
Frequency (MHz)
1000
-9
0.1
1
10
100
Frequency (MHz)
1000
Response vs. Frequency
20
0
On Response (dB)
Response vs. Frequency
20
0
On Response (dB)
-20
-40
-60
-80
-100
-120
-140
0.01
0.1
1
10
Frequency (MHz)
CROSSTALK
V
+
= +3V
T
A
= +25
℃
100
1000
OFF-ISOLATION
-20
-40
-60
-80
-100
-120
-140
0.01
0.1
1
10
CROSSTALK
V
+
= +4.2V
T
A
= +25℃
100
1000
OFF-ISOLATION
Frequency (MHz)
SG Micro Limited
www.sg-micro.com
5
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