Intersil ISL43122 Low-voltage, single supply, dual spst, spdt analog switch Datasheet

ISL43120, ISL43121, ISL43122, ISL43210
®
Data Sheet
April 12, 2005
Low-Voltage, Single Supply, Dual SPST,
SPDT Analog Switches
The Intersil ISL43120, ISL43121, ISL43122 and ISL43210
devices are precision, bidirectional, dual analog switches
designed to operate from a single +2.7V to +12V supply.
Targeted applications include battery powered equipment that
benefit from the devices’ low power consumption (5µW), low
leakage currents (100pA max), and fast switching speeds
(tON = 28ns, tOFF = 20ns). Cell phones, for example, often
face ASIC functionality limitations. The number of analog
input or GPIO pins may be limited and digital geometries are
not well suited to analog switch performance. This family of
parts may be used to “mux-in” additional functionality while
reducing ASIC design risk. Some of the smallest packages
are available, alleviating board space limitations, and making
Intersil’s newest line of low-voltage switches an ideal solution.
The ISL43120, ISL43121, ISL43122 are dual singlepole/single-throw (SPST) devices. The ISL43120 has two
normally open (NO) switches; the ISL43121 has two normally
closed (NC) switches; the ISL43122 has one NO and one NC
switch and can be used as an SPDT. The ISL43210 is a
committed SPDT, which is perfect for use in 2-to-1 multiplexer
applications.
TABLE 1. FEATURES AT A GLANCE
ISL43120 ISL43121 ISL43122
Number of
Switches
2
2
2
1
NO/NO
NC/NC
NO/NC
SPDT or
2 x 1 MUX
SW 1 / SW 2
3.3V RON
3.3V tON/tOFF
5V RON
5V tON/tOFF
12V RON
ISL43210
32Ω
32Ω
32Ω
40ns/20ns 40ns/20ns 40ns/20ns
19Ω
19Ω
19Ω
28ns/20ns 28ns/20ns 28ns/20ns
11Ω
11Ω
11Ω
32Ω
40ns /20ns
19Ω
28ns/20ns
11Ω
12V tON/tOFF
25ns/17ns 25ns/17ns 25ns/17ns
25ns/17ns
Packages
8 Ld SOT-23
6 Ld SOT-23
FN6033.4
Features
• Fully specified at 12V, 5V, and 3.3V supplies for 10%
tolerances
• ON resistance (RON) . . . . . . . . . . . . . . . . . . . . . . . . . 19Ω
• RON matching between channels . . . . . . . . . . . . . . . . . . <1Ω
• Low charge injection . . . . . . . . . . . . . . . . . . . . . . . 5pC (Max)
• Single supply operation . . . . . . . . . . . . . . . . . +2.7V to +12V
• Low power consumption (PD) . . . . . . . . . . . . . . . . . . . .<5µW
• Low leakage current. . . . . . . . . . . . . . . . . . . . . . . . . 10nA
• Fast switching action
- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28ns
- tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20ns
• Guaranteed break-before-make (ISL43122/ISL43210
only)
• Minimum 2000V ESD protection per method 3015.7
• TTL, CMOS compatible
• Available in SOT-23 packaging
• Pb-Free Available (RoHS Compliant)
Applications
• Battery powered, handheld, and portable equipment
- Cellular/mobile phones
- Pagers
- Laptops, notebooks, palmtops
• Communications systems
- Radios, ADSL Modems
- PBX, PABX
• Test & measurement equipment
- Ultrasound
- Computerized Tomography (CT) Scanner
- Magnetic Resonance Image (MRI)
- Position Emission Tomography (PET) Scanner
- Electrocardiograph
• Heads-up displays
Related Literature
• Audio and video switching
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Various circuits
- +3V/+5V DACs and ADCs
- Sample and hold circuits
- Digital filters
- Operational amplifier gain switching networks
- High frequency analog switching
- High speed multiplexing
- Integrator reset circuits
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003-2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL43120, ISL43121, ISL43122, ISL43210
Pinouts
(Note 1)
ISL43120 (SOT-23)
TOP VIEW
ISL43121 (SOT-23)
TOP VIEW
8 COM1
NO1 1
8 COM1
NC1 1
V+ 2
7 IN1
V+ 2
7 IN1
IN2 3
6 GND
IN2 3
6 GND
COM2 4
5 NO2
COM2 4
5 NC2
ISL43122 (SOT-23)
TOP VIEW
ISL43210 (SOT-23)
TOP VIEW
8 COM1
IN 1
6 NO
V+ 2
7 IN1
V+ 2
5 COM
IN2 3
6 GND
COM2 4
5 NC2
NO1 1
4 NC
GND 3
NOTE:
1. Switches Shown for Logic “0” Input.
Truth Table
Ordering Information
ISL43120 ISL43121
ISL43122
ISL43210
LOGIC
SW 1, 2
SW 1, 2
SW 1
SW 2
0
OFF
ON
OFF
ON
ON
OFF
1
ON
OFF
ON
OFF
OFF
ON
NOTE:
PIN NC PIN NO
Logic “0” ≤0.8V. Logic “1” ≥2.4V.
Pin Descriptions
PIN
V+
FUNCTION
System Power Supply Input (+2.7V to +12V)
GND
Ground Connection
IN
Digital Control Input
COM
Analog Switch Common Pin
NO
Analog Switch Normally Open Pin
NC
Analog Switch Normally Closed Pin
N.C.
No Internal Connection
PART NO.
(BRAND)
TEMP.
RANGE (°C)
PACKAGE
PKG.
DWG. #
ISL43120IH-T
(120I)
-40 to 85
8 Ld SOT-23
Tape and Reel
P8.064
ISL43120IHZ-T
(120I) (Note)
-40 to 85
8 Ld SOT-23
P8.064
Tape and Reel (Pb-free)
ISL43121IH-T
(121I)
-40 to 85
8 Ld SOT-23
Tape and Reel
ISL43121IHZ-T
(121I) (Note)
-40 to 85
8 Ld SOT-23
P8.064
Tape and Reel (Pb-free)
ISL43122IH-T
(122I)
-40 to 85
8 Ld SOT-23
Tape and Reel
ISL43122IHZ-T
(122I) (Note)
-40 to 85
8 Ld SOT-23
P8.064
Tape and Reel (Pb-free)
ISL43210IH-T
(123I)
-40 to 85
6 Ld SOT-23
Tape and Reel
ISL43210IHZ-T
(123I) (Note)
-40 to 85
6 Ld SOT-23
P6.064
Tape and Reel (Pb-free)
P8.064
P8.064
P6.064
NOTE: Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with
both SnPb and Pb-free soldering operations. Intersil Pb-free products
are MSL classified at Pb-free peak reflow temperatures that meet or
exceed the Pb-free requirements of IPC/JEDEC J STD-020.
2
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Absolute Maximum Ratings
Thermal Information
V+ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 15V
Input Voltages
IN (Note 2). . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to ((V+) + 0.3V)
NO, NC (Note 2) . . . . . . . . . . . . . . . . . . . . . . -0.3 to ((V+) + 0.3V)
Output Voltages
COM (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to ((V+) + 0.3V)
Continuous Current (Any Terminal) . . . . . . . . . . . . . . . . . . . . . 30mA
Peak Current NO, NC, or COM
(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . . . . 40mA
ESD Rating (Per MIL-STD-883 Method 3015). . . . . . . . . . . . . .>2kV
Thermal Resistance (Typical, Note 3)
θJA (°C/W)
6 Ld SOT-23 Package . . . . . . . . . . . . . . . . . . . . . . .
230
8 Ld SOT-23 Package . . . . . . . . . . . . . . . . . . . . . . .
215
Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C
Moisture Sensitivity (See Technical Brief TB363)
Other Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Level 1
8 Ld SOT-23 Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . Level 2
Maximum Storage Temperature Range. . . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C
(Lead Tips Only)
Operating Conditions
Temperature Range
ISL43XXXIH-T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to 85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
2. Signals on NC, NO, COM, or IN exceeding V+ or GND are clamped by internal diodes. Limit forward diode current to maximum current ratings.
3. θJA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications - 5V Supply
PARAMETER
Test Conditions: V+ = +4.5V to +5.5V, GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified
TEST CONDITIONS
TEMP
(°C)
(NOTE 5)
MIN
Full
0
-
V+
V
25
-
19
30
Ω
TYP
(NOTE 5)
MAX
UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, VANALOG
ON Resistance, RON
V+ = 4.5V, ICOM = 1.0mA, VNO or VNC = 3.5V
(See Figure 5)
RON Matching Between Channels,
∆RON
V+ = 5V, ICOM = 1.0mA, VNO or VNC = 3.5V
RON Flatness, RFLAT(ON)
V+ = 5V, ICOM = 1.0mA, VNO or VNC = 1V, 2V, 3V
NO or NC OFF Leakage Current,
INO(OFF) or INC(OFF)
V+ = 5.5V, VCOM = 1V, 4.5V, VNO or VNC = 4.5V, 1V
(Note 6)
COM OFF Leakage Current,
ICOM(OFF)
V+ = 5.5V, VCOM = 4.5V, 1V, VNO or VNC = 1V, 4.5V
(Note 6)
COM ON Leakage Current,
ICOM(ON)
V+ = 5.5V, VCOM = 1V, 4.5V, or VNO or VNC = 1V,
4.5V, or Floating (Note 6)
Full
-
23
40
Ω
25
-
0.8
2
Ω
Full
-
1
4
Ω
Full
-
7
8
Ω
25
-0.1
0.01
0.1
nA
Full
-5
-
5
nA
25
-0.1
-
0.1
nA
Full
-5
-
5
nA
25
-0.2
-
0.2
nA
Full
-10
-
10
nA
25
-
28
75
ns
DYNAMIC CHARACTERISTICS
Turn-ON Time, tON
VNO or VNC = 3V, RL =1kΩ, CL = 35pF, VIN = 0 to 3V
(See Figure 1)
Turn-OFF Time, tOFF
VNO or VNC = 3V, RL =1kΩ, CL = 35pF, VIN = 0 to 3V
(See Figure 1)
Break-Before-Make Time Delay
(ISL43122, ISL43210), tD
RL = 300Ω, CL = 35pF, VNO = VNC = 3V, VIN = 0 to 3V
(See Figure 3)
Charge Injection, Q
Full
-
40
150
ns
25
-
20
50
ns
Full
-
30
100
ns
Full
3
10
-
ns
CL = 1.0nF, VG = 0V, RG = 0Ω (See Figure 2)
25
-
3
5
pC
OFF Isolation
RL = 50Ω, CL = 5pF, f = 1MHz (See Figure 4)
25
-
76
-
dB
Crosstalk (Channel-to-Channel)
RL = 50Ω, CL = 5pF, f = 1MHz (See Figure 6)
25
-
-105
-
dB
Power Supply Rejection Ratio
RL = 50Ω, CL = 5pF, f = 1MHz
25
-
60
-
dB
NO or NC OFF Capacitance, COFF f = 1MHz, VNO or VNC = VCOM = 0V (See Figure 7)
25
-
8
-
pF
f = 1MHz, VNO or VNC = VCOM = 0V (See Figure 7)
25
-
8
-
pF
COM OFF Capacitance,
CCOM(OFF)
3
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Electrical Specifications - 5V Supply
Test Conditions: V+ = +4.5V to +5.5V, GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified (Continued)
TEMP
(°C)
(NOTE 5)
MIN
TYP
f = 1MHz, VNO or VNC = VCOM = 0V (See Figure 7),
ISL43120, ISL43121, ISL43122
25
-
21
-
pF
f = 1MHz, VNO or VNC = VCOM = 0V (See Figure 7),
ISL43210
25
-
28
-
pF
Full
2.7
-
12
V
Full
-1
0.0001
1
µA
PARAMETER
TEST CONDITIONS
COM ON Capacitance, CCOM(ON)
(NOTE 5)
MAX
UNITS
POWER SUPPLY CHARACTERISTICS
Power Supply Range
V+ = 5.5V, VIN = 0V or V+, all channels on or off
Positive Supply Current, I+
DIGITAL INPUT CHARACTERISTICS
Input Voltage Low, VINL
Full
-
-
0.8
V
Input Voltage High, VINH
Full
2.4
-
-
V
Full
-1
-
1
µA
Input Current, IINH, IINL
V+ = 5.5V, VIN = 0V or V+
NOTES:
4. VIN = input voltage to perform proper function.
5. The algebraic convention, whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
6. Leakage parameter is 100% tested at high temp, and guaranteed by correlation at 25°C.
Electrical Specifications - 3.3V Supply
PARAMETER
Test Conditions: V+ = +3.0V to +3.6V, GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified
TEST CONDITIONS
TEMP
(°C)
(NOTE 5)
MIN
Full
0
-
V+
V
25
-
32
50
Ω
TYP
(NOTE 5)
MAX
UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, VANALOG
ON Resistance, RON
V+ = 3V, ICOM = 1.0mA, VNO or VNC = 1.5V
RON Matching Between Channels,
∆RON
V+ = 3.3V, ICOM = 1.0mA, VNO or VNC = 1.5V
RON Flatness, RFLAT(ON)
V+ = 3.3V, ICOM = 1.0mA, VNO or VNC = 0.5V, 1V,
1.5V
NO or NC OFF Leakage Current,
INO(OFF) or INC(OFF)
V+ = 3.6V, VCOM = 1V, 3V, VNO or VNC = 3V, 1V
(Note 6)
COM OFF Leakage Current,
ICOM(OFF)
V+ = 3.6V, VCOM = 3V, 1V, VNO or VNC = 1V, 3V
(Note 6)
COM ON Leakage Current,
ICOM(ON)
V+ = 3.6V, VCOM = 1V, 3V, or VNO or VNC = 1V, 3V,
or floating (Note 6)
Full
-
40
60
Ω
25
-
0.8
2
Ω
Full
-
1
4
Ω
25
-
6
8
Ω
Full
-
7
12
Ω
25
-0.1
0.01
0.1
nA
Full
-5
-
5
nA
25
-0.1
0.01
0.1
nA
Full
-5
-
5
nA
25
-0.2
-
0.2
nA
Full
-10
-
10
nA
DYNAMIC CHARACTERISTICS
Turn-ON Time, tON
Turn-OFF Time, tOFF
VNO or VNC = 1.5V, RL = 1kΩ, CL = 35pF,
VIN = 0 to 3V
25
-
40
120
ns
Full
-
60
200
ns
VNO or VNC = 1.5V, RL = 1kΩ, CL = 35pF,
VIN = 0 to 3V
25
-
20
50
ns
Full
-
30
120
ns
Full
3
20
-
ns
RL = 300Ω, CL = 35pF, VNO or VNC = 1.5V,
VIN = 0 to 3V
Break-Before-Make Time Delay
(ISL43122, ISL43210), tD
Charge Injection, Q
CL = 1.0nF, VG = 0V, RG = 0Ω
25
-
1
5
pC
OFF Isolation
RL = 50Ω, CL = 5pF, f = 1MHz
25
-
76
-
dB
25
-
-105
-
dB
25
-
56
-
dB
25
-
8
-
pF
Crosstalk (Channel-to-Channel)
RL = 50Ω, CL = 5pF, f = 1MHz
Power Supply Rejection Ratio
NO or NC OFF Capacitance, COFF f = 1MHz, VNO or VNC = VCOM = 0V
4
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Electrical Specifications - 3.3V Supply
PARAMETER
Test Conditions: V+ = +3.0V to +3.6V, GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified (Continued)
TEST CONDITIONS
TEMP
(°C)
(NOTE 5)
MIN
TYP
(NOTE 5)
MAX
UNITS
COM OFF Capacitance,
CCOM(OFF)
f = 1MHz, VNO or VNC = VCOM = 0V
25
-
8
-
pF
COM ON Capacitance, CCOM(ON)
f = 1MHz, VNO or VNC = VCOM = 0V, ISL43120,
ISL43121, ISL43122
25
-
21
-
pF
f = 1MHz, VNO or VNC = VCOM = 0V, ISL43210
25
-
28
-
pF
Full
-1
-
1
µA
POWER SUPPLY CHARACTERISTICS
V+ = 3.6V, VIN = 0V or V+, all channels on or off
Positive Supply Current, I+
DIGITAL INPUT CHARACTERISTICS
Input Voltage Low, VINL
Full
-
-
0.8
V
Input Voltage High, VINH
Full
2.4
-
-
V
Full
-1
-
1
µA
Input Current, IINH, IINL
V+ = 3.6V, VIN = 0V or V+
Electrical Specifications - 12V Supply
PARAMETER
Test Conditions: V+ = +10.8V to +13V, GND = 0V, VINH = 4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified
TEST CONDITIONS
TEMP
(°C)
(NOTE 5)
MIN
Full
0
-
V+
V
25
-
11
20
Ω
TYP
(NOTE 5)
MAX
UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, VANALOG
ON Resistance, RON
V+ = 10.8V, ICOM = 1.0mA, VNO or VNC = 10V
RON Matching Between Channels,
∆RON
V+ = 12V, ICOM = 1.0mA, VNO or VNC = 10V
RON Flatness, RFLAT(ON)
V+ = 12V, ICOM = 1.0mA, VNO or VNC = 3V, 6V, 9V
NO or NC OFF Leakage Current,
INO(OFF) or INC(OFF)
V+ = 13V, VCOM = 1V, 12V, VNO or VNC = 12V, 1V
(Note 6)
COM OFF Leakage Current,
ICOM(OFF)
V+ = 13V, VCOM = 12V, 1V, VNO or VNC = 1V, 12V
(Note 6)
COM ON Leakage Current,
ICOM(ON)
V+ = 13V, VCOM = 1V, 12V, or VNO or VNC = 1V, 12V,
or floating (Note 6)
Full
-
15
25
Ω
25
-
0.8
2
Ω
Full
-
1
4
Ω
25
-
1
4
Ω
Full
-
-
6
Ω
25
-0.1
0.01
0.1
nA
Full
-5
-
5
nA
25
-0.1
0.01
0.1
nA
Full
-5
-
5
nA
25
-0.2
-
0.2
nA
Full
-10
-
10
nA
DYNAMIC CHARACTERISTICS
VNO or VNC = 10V, RL = 1kΩ, CL = 35pF, VIN = 0 to 4V
Turn-ON Time, tON
VNO or VNC = 10V, RL = 1kΩ, CL = 35pF, VIN = 0 to 4V
Turn-OFF Time, tOFF
RL = 300Ω, CL = 35pF, VNO or VNC = 10V,
VIN = 0 to 4V
Break-Before-Make Time Delay
(ISL43122, ISL43210), tD
25
-
25
35
ns
Full
-
35
55
ns
25
-
17
30
ns
Full
-
26
50
ns
Full
0
2
ns
Charge Injection, Q
CL = 1.0nF, VG = 0V, RG = 0Ω
25
-
5
15
pC
OFF Isolation
RL = 50Ω, CL = 5pF, f = 1MHz
25
-
76
-
dB
25
-
-105
-
dB
25
-
63
-
dB
Crosstalk (Channel-to-Channel)
RL = 50Ω, CL = 5pF, f = 1MHz
Power Supply Rejection Ratio
NO or NC OFF Capacitance, COFF f = 1MHz, VNO or VNC = VCOM = 0V
25
-
8
-
pF
COM OFF Capacitance,
CCOM(OFF)
f = 1MHz, VNO or VNC = VCOM = 0V
25
-
8
-
pF
COM ON Capacitance, CCOM(ON)
f = 1MHz, VNO or VNC = VCOM = 0V, ISL43120,
ISL43121, ISL43122
25
-
21
-
pF
f = 1MHz, VNO or VNC = VCOM = 0V, ISL43210
25
-
28
-
pF
5
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Electrical Specifications - 12V Supply
PARAMETER
Test Conditions: V+ = +10.8V to +13V, GND = 0V, VINH = 4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified (Continued)
TEST CONDITIONS
TEMP
(°C)
(NOTE 5)
MIN
TYP
(NOTE 5)
MAX
UNITS
Full
-1
-
1
µA
Full
-
-
0.8
V
Full
4
-
-
V
Full
-1
-
1
µA
POWER SUPPLY CHARACTERISTICS
V+ = 13V, VIN = 0V or V+, all channels on or off
Positive Supply Current, I+
DIGITAL INPUT CHARACTERISTICS
Input Voltage Low, VINL
Input Voltage High, VINH
Input Current, IINH, IINL
V+ = 13V, VIN = 0V or V+
Test Circuits and Waveforms
3V OR 4V
LOGIC
INPUT
V+
tr < 20ns
tf < 20ns
50%
0V
tOFF
SWITCH
INPUT
SWITCH
INPUT VNO
VOUT
VOUT
NO or NC
COM
IN
90%
SWITCH
OUTPUT
C
90%
0V
LOGIC
INPUT
CL
35pF
RL
1kΩ
GND
tON
Logic input waveform is inverted for switches that have the opposite
logic sense.
Repeat test for all switches. CL includes fixture and stray
capacitance.
RL
-----------------------------V OUT = V
(NO or NC) R + R
L
( ON )
FIGURE 1A. MEASUREMENT POINTS
FIGURE 1B. TEST CIRCUIT
FIGURE 1. SWITCHING TIMES
V+
SWITCH
OUTPUT
VOUT
RG
∆VOUT
NO or NC
C
VOUT
COM
V+
LOGIC
INPUT
VG
ON
ON
GND
IN
CL
OFF
0V
LOGIC
INPUT
Q = ∆VOUT x CL
FIGURE 2B. TEST CIRCUIT
FIGURE 2A. MEASUREMENT POINTS
FIGURE 2. CHARGE INJECTION
6
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Test Circuits and Waveforms (Continued)
V+
3V OR 4V
LOGIC
INPUT
0V
C
VOUT1
NO1
VNX
COM1
VOUT2 RL1
300Ω
NC2
SWITCH
OUTPUT
VOUT1
90%
COM2
IN1
0V
RL2
300Ω
IN2
SWITCH
OUTPUT
VOUT2
CL1
35pF
90%
0V
LOGIC
INPUT
CL2
35pF
GND
tD
tD
CL includes fixture and stray capacitance.
FIGURE 3A. MEASUREMENT POINTS (ISL43122 ONLY)
FIGURE 3B. TEST CIRCUIT (ISL43122 ONLY)
V+
3V OR 4V
LOGIC
INPUT
0V
C
NO
VNX
VOUT
COM
NC
SWITCH
OUTPUT
VOUT
90%
CL
35pF
RL
300Ω
IN
GND
LOGIC
INPUT
0V
tD
CL includes fixture and stray capacitance.
FIGURE 3C. MEASUREMENT POINTS (ISL43210 ONLY)
FIGURE 3D. TEST CIRCUIT (ISL43210 ONLY)
FIGURE 3. BREAK-BEFORE-MAKE TIME
V+
V+
C
C
RON = V1/1mA
SIGNAL
GENERATOR
NO or NC
NO or NC
VNX
INX
0V or VINH
IN
V1
0.8V or VINH
COM
COM
ANALYZER
1mA
GND
GND
RL
FIGURE 4. OFF ISOLATION TEST CIRCUIT
7
FIGURE 5. RON TEST CIRCUIT
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Test Circuits and Waveforms (Continued)
V+
C
V+
C
SIGNAL
GENERATOR
NO1 or NC1
COM1
50Ω
NO or NC
IN1
COM2
ANALYZER
INX
IN2 0V or VINH
0V or 2.4V
NO2 or NC2
GND
0V or VINH
IMPEDANCE
ANALYZER
COM
NC
GND
RL
FIGURE 6. CROSSTALK TEST CIRCUIT
Detailed Description
The ISL43120–ISL43122 and ISL43210 bidirectional, dual
analog switches offer precise switching capability from a
single 2.7V to 12V supply with low on-resistance (19Ω) and
high speed operation (tON = 28ns, tOFF = 20ns). The devices
are especially well suited to portable battery powered
equipment thanks to the low operating supply voltage (2.7V),
low power consumption (5µW), low leakage currents (100pA
max), and the tiny SOT-23 packaging. High frequency
applications also benefit from the wide bandwidth, and the
very high off isolation and crosstalk rejection.
FIGURE 7. CAPACITANCE TEST CIRCUIT
unaffected by this approach, but the switch resistance may
increase, especially at low supply voltages.
OPTIONAL PROTECTION
DIODE
V+
OPTIONAL
PROTECTION
RESISTOR
INX
VNO or NC
VCOM
Supply Sequencing And Overvoltage Protection
With any CMOS device, proper power supply sequencing is
required to protect the device from excessive input currents
which might permanently damage the IC. All I/O pins contain
ESD protection diodes from the pin to V+ and GND (see
Figure 8). To prevent forward biasing these diodes, V+ must
be applied before any input signals, and input signal
voltages must remain between V+ and GND. If these
conditions cannot be guaranteed, then one of the following
two protection methods should be employed.
Logic inputs can easily be protected by adding a 1kΩ
resistor in series with the input (see Figure 8). The resistor
limits the input current below the threshold that produces
permanent damage, and the sub-microamp input current
produces an insignificant voltage drop during normal
operation.
Adding a series resistor to the switch input defeats the
purpose of using a low RON switch, so two small signal
diodes can be added in series with the supply pins to provide
overvoltage protection for all pins (see Figure 8). These
additional diodes limit the analog signal from 1V below V+ to
1V above GND. The low leakage current performance is
8
GND
OPTIONAL PROTECTION
DIODE
FIGURE 8. OVERVOLTAGE PROTECTION
Power-Supply Considerations
The ISL43XXX construction is typical of most CMOS analog
switches, except that they have only two supply pins: V+ and
GND. V+ and GND drive the internal CMOS switches and
set their analog voltage limits. Unlike switches with a 13V
maximum supply voltage, the ISL43XXX 15V maximum
supply voltage provides plenty of room for the 10% tolerance
of 12V supplies, as well as room for overshoot and noise
spikes.
The minimum recommended supply voltage is 2.7V. It is
important to note that the input signal range, switching times,
and on-resistance degrade at lower supply voltages. Refer
to the electrical specification tables and Typical Performance
curves for details.
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
V+ and GND also power the internal logic and level shiftier.
The level shiftier convert the input logic levels to switched V+
and GND signals to drive the analog switch gate terminals.
This family of switches cannot be operated with bipolar
supplies, because the input switching point becomes
negative in this configuration.
Logic-Level Thresholds
This switch family is TTL compatible (0.8V and 2.4V) over a
supply range of 3V to 11V (see Figure 15). At 12V the VIH
level is about 2.5V. This is still below the TTL guaranteed
high output minimum level of 2.8V, but noise margin is
reduced. For best results with a 12V supply, use a logic
family the provides a VOH greater than 3V.
The digital input stages draw supply current whenever the
digital input voltage is not at one of the supply rails. Driving
the digital input signals from GND to V+ with a fast transition
time minimizes power dissipation.
High-Frequency Performance
In 50Ω systems, signal response is reasonably flat even past
300MHz (see Figure 16). Figure 16 also illustrates that the
frequency response is very consistent over a wide V+ range,
and for varying analog signal levels.
An OFF switch acts like a capacitor and passes higher
frequencies with less attenuation, resulting in signal
feedthrough from a switch’s input to its output. Off Isolation
is the resistance to this feedthrough, while Crosstalk
indicates the amount of feedthrough from one switch to
another. Figure 17 details the high Off Isolation and
Crosstalk rejection provided by this family. At 10MHz, Off
Isolation is about 50dB in 50Ω systems, decreasing
approximately 20dB per decade as frequency increases.
Higher load impedances decrease Off Isolation and
Crosstalk rejection due to the voltage divider action of the
switch OFF impedance and the load impedance.
Leakage Considerations
Reverse ESD protection diodes are internally connected
between each analog-signal pin and both V+ and GND. One of
these diodes conducts if any analog signal exceeds V+ or
GND.
Virtually all the analog leakage current comes from the ESD
diodes to V+ or GND. Although the ESD diodes on a given
signal pin are identical and therefore fairly well balanced,
they are reverse biased differently. Each is biased by either
V+ or GND and the analog signal. This means their leakages
will vary as the signal varies. The difference in the two diode
leakages to the V+ and GND pins constitutes the analogsignal-path leakage current. All analog leakage current flows
between each pin and one of the supply terminals, not to the
other switch terminal. This is why both sides of a given
switch can show leakage currents of the same or opposite
polarity. There is no connection between the analog signal
paths and V+ or GND.
Typical Performance Curves TA = 25°C, Unless Otherwise Specified
45
40
V+ = 3.3V
40
35
35
30
30
85°C
20
25°C
15
25°C
20
25
RON (Ω)
RON (Ω)
85°C
25
-40°C
15
30
25
V+ = 5V
20
85°C
25°C
-40°C
15
10
20
-40°C
10
85°C
15
5
3
4
5
6
7
8
V+ (V)
9
10
11
12
13
10
-40°C
5
0
FIGURE 9. ON RESISTANCE vs SUPPLY VOLTAGE
9
V+ = 12V
25°C
2
4
6
VCOM (V)
8
10
12
FIGURE 10. ON RESISTANCE vs SWITCH VOLTAGE
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Typical Performance Curves TA = 25°C, Unless Otherwise Specified (Continued)
0.5
0.4
0.3
60
V+ = 3.3V
25°C
50
85°C
0.1
0
0.25
0.2
0.15
40
-40°C
30
V+ = 5V
25°C
0.1
Q (pC)
∆RON (Ω)
0.2
85°C
85°C
0.05
0
0.15
20
V+ = 5V
V+ = 12V
10
V+ = 3.3V
-40°C
0
V+ = 12V
25°C
0.1
-40°C
0.05
-10
85°C
25°C
-40°C
-20
0
0
4
2
6
8
10
2
0
12
4
6
VCOM (V)
8
10
12
VCOM (V)
FIGURE 11. RON MATCH vs SWITCH VOLTAGE
FIGURE 12. CHARGE INJECTION vs SWITCH VOLTAGE
100
35
90
80
30
85°C
tOFF (ns)
tON (ns)
70
60
85°C
25
50
-40°C
-40°C
40
20
-40°C
25°C
30
25°C
20
15
3
4
5
6
7
V+ (V)
8
9
10
11
12
2
3.0
2.5
VINH AND VINL (V)
VINH
-40°C
2.0
4
5
6
7
V+ (V)
8
9
10
11
12
FIGURE 14. TURN - OFF TIME vs SUPPLY VOLTAGE
NORMALIZED GAIN (dB)
FIGURE 13. TURN - ON TIME vs SUPPLY VOLTAGE
3
85°C
V+ = 3.3V to 12V
0
GAIN
-3
-6
0
PHASE
20
25°C
1.5
85°C
40
-40°C
60
25°C
1.0
RL = 50Ω
VIN = 0.2VP-P to 2.5VP-P (V+ = 3.3V)
VIN = 0.2VP-P to 4VP-P (V+ = 5V)
VIN = 0.2VP-P to 5VP-P (V+ = 12V)
VINL
85°C
0.5
2
3
4
5
6
7
8
V+ (V)
9
10
11
12
13
FIGURE 15. DIGITAL SWITCHING POINT vs SUPPLY VOLTAGE
10
1
10
80
PHASE (DEGREES)
2
100
100
600
FREQUENCY (MHz)
FIGURE 16. FREQUENCY RESPONSE
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Typical Performance Curves TA = 25°C, Unless Otherwise Specified (Continued)
10
-10
RL = 50Ω
V+ = 3V to 13V
-20
20
0
-30
30
10
-40
40
20
-50
50
60
ISOLATION
-70
70
-80
80
-90
±PSRR (dB)
-60
OFF ISOLATION (dB)
CROSSTALK (dB)
V+ = 3.3V, SWITCH OFF
V+ = 12V, SWITCH OFF
30
40
V+ = 12V, SWITCH ON
50
60
90
70
100
80
V+ = 3.3V, SWITCH ON
CROSSTALK
-100
-110
1K
10K
100K
1M
10M
110
100M 500M
0.3
1
10
100
FREQUENCY (Hz)
FREQUENCY (MHz)
FIGURE 17. CROSSTALK AND OFF ISOLATION
FIGURE 18. ±PSRR vs FREQUENCY
1000
Die Characteristics
SUBSTRATE POTENTIAL (POWERED UP):
GND
TRANSISTOR COUNT:
ISL43120: 66
ISL43121: 66
ISL43122: 66
ISL43210: 58
PROCESS:
Si Gate CMOS
11
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Small Outline Transistor Plastic Packages (SOT23-6)
0.20 (0.008) M
P6.064
VIEW C
C
6 LEAD SMALL OUTLINE TRANSISTOR PLASTIC PACKAGE
CL
INCHES
e
b
SYMBOL
6
5
4
CL
CL
E1
E
1
2
3
e1
C
D
CL
A
A2
SEATING
PLANE
A1
-C-
WITH
b
PLATING
b1
c
c1
MILLIMETERS
MAX
MIN
MAX
NOTES
A
0.036
0.057
0.90
1.45
-
A1
0.000
0.0059
0.00
0.15
-
A2
0.036
0.051
0.90
1.30
-
b
0.012
0.020
0.30
0.50
-
b1
0.012
0.018
0.30
0.45
c
0.003
0.009
0.08
0.22
6
c1
0.003
0.008
0.08
0.20
6
D
0.111
0.118
2.80
3.00
3
E
0.103
0.118
2.60
E1
0.060
0.068
1.50
3.00
-
1.75
3
e
0.0374 Ref
0.95 Ref
-
e1
0.0748 Ref
1.90 Ref
-
L
0.10 (0.004) C
MIN
0.014
0.022
0.35
0.55
L1
0.024 Ref.
0.60 Ref.
L2
0.010 Ref.
0.25 Ref.
N
6
6
4
5
R
0.004
-
0.10
-
R1
0.004
0.010
0.10
0.25
α
0o
8o
0o
8o
Rev. 3 9/03
BASE METAL
NOTES:
1. Dimensioning and tolerance per ASME Y14.5M-1994.
4X θ1
2. Package conforms to EIAJ SC-74 and JEDEC MO178AB.
3. Dimensions D and E1 are exclusive of mold flash, protrusions,
or gate burrs.
R1
4. Footlength L measured at reference to gauge plane.
R
5. “N” is the number of terminal positions.
GAUGE PLANE
SEATING
PLANE
L
C
L1
α
L2
6. These Dimensions apply to the flat section of the lead between
0.08mm and 0.15mm from the lead tip.
7. Controlling dimension: MILLIMETER. Converted inch dimensions are for reference only
4X θ1
VIEW C
12
FN6033.4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Small Outline Transistor Plastic Packages (SOT23-8)
0.20 (0.008) M
CL
P8.064
C
VIEW C
8 LEAD SMALL OUTLINE TRANSISTOR PLASTIC PACKAGE
e
b
INCHES
SYMBOL
8
6
7
5
CL
CL
E
1
2
3
E1
MILLIMETERS
MAX
MIN
MAX
NOTES
A
0.036
0.057
0.90
1.45
-
A1
0.000
0.0059
0.00
0.15
-
A2
0.036
0.051
0.90
1.30
-
b
0.009
0.015
0.22
0.38
-
b1
0.009
0.013
0.22
0.33
c
0.003
0.009
0.08
0.22
6
4
e1
C
D
CL
A
MIN
A2
A1
SEATING
PLANE
-C-
c1
0.003
0.008
0.08
0.20
6
D
0.111
0.118
2.80
3.00
3
E
0.103
0.118
2.60
3.00
-
E1
0.060
0.067
1.50
1.70
3
e
0.0256 Ref
0.65 Ref
-
e1
0.0768 Ref
1.95 Ref
-
L
0.10 (0.004) C
0.014
0.022
0.35
0.55
L1
0.024 Ref.
0.60 Ref.
L2
0.010 Ref.
0.25 Ref.
N
8
8
5
WITH
b
R
0.004
-
0.10
-
PLATING
b1
R1
0.004
0.010
0.10
0.25
α
0o
8o
0o
8o
c
c1
4
Rev. 2 9/03
NOTES:
BASE METAL
1. Dimensioning and tolerance per ASME Y14.5M-1994.
2. Package conforms to EIAJ SC-74 and JEDEC MO178BA.
4X θ1
3. Dimensions D and E1 are exclusive of mold flash, protrusions,
or gate burrs.
4. Footlength L measured at reference to gauge plane.
R1
5. “N” is the number of terminal positions.
R
GAUGE PLANE
SEATING
PLANE
L
C
L1
α
6. These Dimensions apply to the flat section of the lead between
0.08mm and 0.15mm from the lead tip.
7. Controlling dimension: MILLIMETER. Converted inch dimensions are for reference only
L2
4X θ1
VIEW C
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Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
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13
FN6033.4
April 12, 2005
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