SGM4157
SPDT 1Ω Analog Switch
GENERAL DESCRIPTION
The SGM4157 is a single Low on-resistance (1Ω), fast
single-pole double-throw (SPDT) CMOS switch. It is
designed for low operating voltage, high current switching
of speaker output for cell phone applications. The
SGM4157 can handle a balanced microphone/speaker
generator in a monophone mode. The device contains a
break-before-make (BBM) feature.
The control input, IN, tolerates input drive signals up to
5.5V, independent of supply voltage.
SGM4157 is available in Green TDFN-2×2-6L package.
FEATURES
●
Voltage Operation: 1.8V to 5.5V
●
On-Resistance: 0.8Ω (TYP) at 4.5V
●
-3dB Bandwidth: 80MHz
●
High Off-Isolation: -60dB at 1MHz
●
Rail-to-Rail Operation
●
Low Static Power
●
TTL/CMOS Compatible
●
Break-Before-Make Switching
●
Extended Industrial Temperature Range:
-40℃ to +85℃
●
Microsize Package
PIN CONFIGURATION
(TOP VIEW)
APPLICATIONS
Portable Instrumentation
Battery-Operated Equipment
Computer Peripherals
Cell Phones
PDAs
MP3s
NC
3
GND
NO
1
SGM4157YD6
6
IN
2
5
V+
4
TDFN-2×2-6L
COM
FUNCTION TABLE
LOGIC
0
1
NO
OFF
ON
NC
ON
OFF
PIN DESCRIPTION
NAME
NO
GND
NC
COM
V
+
IN
Exposed
Pad
PIN
1
2
3
4
5
6
GND
Ground.
Normally-Closed Terminal.
Common Terminal.
Power Supply.
Digital Control Pin to Connect the COM
Terminal to the NO or NC Terminals.
Exposed pad should be soldered to
PCB board and connected to GND.
FUNCTION
Normally-Open Terminal.
Switches Shown For Logic “0” Input.
NOTE: NO, NC and COM
terminal
may be an input or output.
SG Micro Corp
www.sg-micro.com
REV. B. 4
SGM4157
PACKAGE/ORDERING INFORMATION
MODEL
SGM4157
PIN-
PACKAGE
TDFN-2×2-6L
SPECIFIED
TEMPERATURE
RANGE
-40℃ to +85℃
ORDERING
NUMBER
SGM4157YD6/TR
SPDT 1Ω Analog Switch
PACKAGE
MARKING
4157
PACKAGE
OPTION
Tape and Reel, 3000
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............................±200mA
Peak Current NO, NC, or COM......................................±300mA
Operating Temperature Range............................-40℃ to +85℃
Junction Temperature..................................................... 150℃
Storage Temperature Range........................... -65℃ to +150℃
Lead Temperature (soldering, 10s)..................................260℃
ESD (HBM)......................................................................3000V
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 latest datasheet.
SG Micro Corp
www.sg-micro.com
2
SGM4157
SPDT 1Ω Analog Switch
ELECTRICAL CHARACTERISTICS
(V
+
= +4.5V to +5.5V, V
IH
= +2.0 V, V
IL
= +0.8V, T
A
= -40℃ to +85℃. Typical values are at V
+
= 5.0V, 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
+
= +5.5V, V
IN
= 0V or 5.5V
V
NO
or V
NC
= 3.0V, V
IH
= 1.5V, V
IL
= 0V,
R
L
= 300Ω, C
L
= 35pF, Test Circuit 2
V
NO
or V
NC
= 3.0V, 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
RS = 39Ω, C
L
= 50pF, Test Circuit 4
R
L
= 50Ω, Signal = 0dBm, f = 10MHz
C
L
= 5pF, Test Circuit 5
f = 1MHz
R
L
= 50Ω, Signal = 0dBm,
C
L
= 5pF, Test Circuit 6
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
0.001
1.5
0.6
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
+
= 4.5V, V
NO
or V
NC
= 3.5V,
I
COM
= -10mA, Test Circuit 1
V
+
= 4.5V, V
NO
or V
NC
= 3.5V,
I
COM
= -10mA, Test Circuit 1
V
+
= 4.5V, V
NO
or V
NC
= 1.0V, 2.0V,
3.5V, I
COM
= -10mA, Test Circuit 1
V
+
= 5.5V, V
NO
or V
NC
= 1.0V, 4.5V,
V
COM
= 4.5V , 1.0V
V
+
= 5.5V, V
COM
= 1.0V, 4.5V,
V
NO
or V
NC
= 1.0V, 4.5V, or floating
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
0.2
0.3
1
1
0.43
0.47
0
0.8
2
V
+
V
Ω
Ω
Ω
Ω
Ω
Ω
μA
μA
DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make
Time Delay
Skew
Off Isolation
-3dB Bandwidth
t
ON
t
OFF
t
D
t
SKEW
O
ISO
BW
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
20
23
23
9.0
-40
-60
80
20
73
ns
ns
ns
ns
dB
dB
MHz
pF
pF
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
0.001
5.5
3
V
μA
SG Micro Corp
www.sg-micro.com
3
SGM4157
SPDT 1Ω Analog Switch
ELECTRICAL CHARACTERISTICS
(V
+
= +2.7V to +3.6V, V
IH
= +1.4 V, V
IL
= +0.5V, 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
DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make
Time Delay
Skew
Off Isolation
-3dB Bandwidth
t
ON
t
OFF
t
D
t
SKEW
O
ISO
BW
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, Signal = 0dBm, f = 10MHz
C
L
= 5pF, Test Circuit 5
f = 1MHz
Signal = 0dBm, R
L
= 50Ω,
C
L
= 5pF, Test Circuit 6
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
28
22
27
9
-40
-60
80
20
73
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℃
0.001
0.9
0.55
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℃
0.2
0.35
1
1
0.45
0.5
0
1.9
2.3
V
+
V
Ω
Ω
Ω
Ω
Ω
Ω
μA
μA
Source OFF Capacitance C
NC(OFF)
, C
NO(OFF)
f = 1MHz
C
NC(ON)
, C
NO(ON)
,
Channel ON Capacitance
f = 1MHz
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
0.001
5.5
3
V
μA
SG Micro Corp
www.sg-micro.com
4
SGM4157
SPDT 1Ω Analog Switch
TYPICAL PERFORMANCE CHARACTERISTICS
On Response vs. Frequency
3
V
+
= +5V
T
A
= +25℃
On Response vs. Frequency
3
V
+
= +3V
On Response (dB)
0
T
A
= +25℃
On Response (dB)
0
-3
-3
-6
-6
-9
0.1
1
10
100
Frequency (MHz)
1000
-9
0.1
1
10
Frequency (MHz)
100
1000
Response vs. Frequency
20
0
On Response (dB)
-20
-40
-60
-80
-100
-120
-140
0.01
0.1
1
10
Frequency(MHz)
V
+
= +5V
T
A
= +25℃
100
1000
OFF-ISOLATION
Response vs. Frequency
20
0
On Response (dB)
-20
-40
-60
-80
-100
-120
-140
0.01
0.1
1
10
V
+
= +3V
T
A
= +25℃
100
1000
OFF-ISOLATION
Frequency (MHz)
SG Micro Corp
www.sg-micro.com
5
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