SGM3158
4.5Ω Dual SPDT
Analog Switch in 12-Pin DFN
GENERAL DESCRIPTION
The SGM3158 is a dual, bidirectional, single-pole/
double-throw (SPDT) CMOS analog switch designed to
operate from a single +1.8V to +5.5V supply. It features
high-bandwidth (270MHz) and low on-resistance (4.5Ω
TYP), targeted applications for audio switching.
SGM3158 features guaranteed on-resistance matching
(0.3Ω
MAX)
between
switches
and
guaranteed
on-resistance flatness over the signal range (2.3Ω TYP).
This ensures excellent linearity and low distortion when
switching audio signals.
SGM3158 is available in Green DFN-3×1-12L package.
FEATURES
Voltage Operation: 1.8V to 5.5V
On-Resistance: 4.5Ω (TYP) at 5.0V
Fast Switching Times
t
ON
20ns
t
OFF
15ns
High Bandwidth: 270MHz
High Off-Isolation: -51dB at 10MHz
Rail-to-Rail Operation
TTL/CMOS Compatible
Break-Before-Make Switching
Extended Industrial Temperature Range:
-40℃ to +85℃
Available in Green DFN-3×1-12L Package
APPLICATIONS
Portable Instrumentation
Battery-Operated Equipment
Computer Peripherals
Cell Phones
PDAs
MP3s
PIN CONFIGURATION
(TOP VIEW)
SGM3158
COM1
1
12
V
+
NC1
2
11
NO1
IN1
GND
3
10
FUNCTION TABLE
LOGIC
0
1
NO
OFF
ON
NC
ON
OFF
COM2
4
9
V+
NC2
5
8
NO2
IN2
GND
6
7
DFN-3×1-12L
Switches Shown for Logic “0” Input
SG Micro Limited
www.sg-micro.com
REV. C. 3
SGM3158
PACKAGE/ORDERING INFORMATION
MODEL
SGM3158
PIN-
PACKAGE
DFN-3×1-12L
SPECIFIED
TEMPERATURE
RANGE
-40℃ to +85℃
ORDERING
NUMBER
4.5Ω Dual SPDT
Analog Switch in 12-pin DFN
PACKAGE
MARKING
3158
PACKAGE
OPTION
Tape and Reel, 3000
SGM3158YD/TR
ABSOLUTE MAXIMUM RATINGS
V
+
, IN to GND.............................................................-0.3V to 6V
(1)
Analog, Digital voltage range
.................... -0.3V to (V
+
) + 0.3V
Continuous Current NO, NC, or COM..............................±50mA
Peak Current NO, NC, or COM .......................................±80mA
Operating Temperature Range............................-40℃ to +85℃
Junction Temperature........................................................150°C
Storage Temperature........................................- 65°C to +150°C
Lead Temperature (soldering, 10s)....................................260°C
ESD (HBM).......................................................................2000V
ESD (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
NAME
NO1, NO2
GND
NC1, NC2
COM1, COM2
V
+
IN1, IN2
FUNCTION
Normally-open terminal
Ground
Normally-closed terminal
Common terminal
Power supply
Digital control pin to connect the COM terminal to the NO or NC terminals
NOTE: NO1 or NO2, NC1 or NC2, and COM1 or COM2 terminals may be an input or output.
SG Micro Limited
www.sg-micro.com
2
SGM3158
4.5Ω Dual SPDT
Analog Switch in 12-pin DFN
ELECTRICAL CHARACTERISTICS
(V
+
= +2.7V to +3.6V, V
IH
= +1.4V, V
IL
= +0.5V, T
A
= -40℃ to +85℃, Typical values are at V
+
= 3.0V, T
A
= + 25℃, unless otherwise
noted.)
PARAMETER
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
DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make
Time Delay
Skew
Off Isolation
t
ON
t
OFF
t
D
t
SKEW
O
ISO
V
NO
or V
NC
= 1.5V, V
IH
= 1.5V, V
IL
= 0V,
R
L
= 300Ω, C
L
= 35pF, Test Circuit 2
V
NO
or V
NC
= 1.5V, V
IH
= 1.5V, V
IL
= 0V,
R
L
= 300Ω, C
L
= 35pF, Test Circuit 2
V
NO1
or V
NC1
= V
NO2
or V
NC2
= 3V,
R
L
= 300Ω, C
L
= 35pF, Test Circuit 3
R
S
= 39Ω, C
L
= 50pF, Test Circuit 4
R
L
= 50Ω, C
L
= 5pF,
Signal = 0dBm,
Test Circuit 5
f = 10MHz
f = 1MHz
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
30
25
8
2
-51
-72
270
5.5
15.5
ns
ns
ns
ns
dB
dB
MHz
pF
pF
V
INH
V
INL
I
IN
V
+
= 5.5V, V
IN
= 0V or 3.6V
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
1
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
+
= 2.7V, V
NO
or V
NC
= 1.5V,
I
COM
= -10mA, Test Circuit 1
V
+
= 2.7V, V
NO
or V
NC
= 1.5V,
I
COM
= -10mA, Test Circuit 1
V
+
= 2.7V, V
NO
or V
NC
= 1.0V, 1.5V,
2.0V, I
COM
= -10mA, Test Circuit 1
V
+
= 3.6V, V
NO
or V
NC
= 0.3V, 3.3V,
V
COM
= 3.3V, 0.3V
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℃
3
0.15
0
7
V
+
10
10.5
0.3
0.4
4
4.3
1
1
V
Ω
Ω
Ω
Ω
Ω
Ω
µA
µA
SYMBOL
CONDITIONS
TEMP
MIN TYP MAX UNITS
-3dB Bandwidth
BW
Signal = 0dBm, R
L
= 50Ω, C
L
= 5pF,
Test Circuit 6
Source OFF
C
NC(OFF)
,
f = 1MHz
Capacitance
C
NO(OFF)
Channel ON
C
NC(ON)
, C
NO(ON)
,
f = 1MHz
Capacitance
C
COM(ON)
POWER REQUIREMENTS
Power Supply Range
Power Supply Current
V
+
I
+
V
+
= 5.5V, V
IN
= 0V or V
+
-40℃ to +85℃
-40℃ to +85℃
1.8
5.5
5
V
µA
SG Micro Limited
www.sg-micro.com
4
Embedded System
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