ISL43121IHZ-T [INTERSIL]
Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches; 低电压，单电源，双路SPST ， SPDT模拟开关
| 型号： | ISL43121IHZ-T |
| 厂家： | 
Intersil |
| 描述： | Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches |
| 文件： | 总13页 (文件大小：465K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ISL43120, ISL43121, ISL43122, ISL43210
®
Data Sheet
April 12, 2005
FN6033.4
Low-Voltage, Single Supply, Dual SPST,
SPDT Analog Switches
Features
• Fully specified at 12V, 5V, and 3.3V supplies for 10%
tolerances
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
• ON resistance (R ) . . . . . . . . . . . . . . . . . . . . . . . . . 19Ω
ON
• R
ON
matching between channels . . . . . . . . . . . . . . . . . .<1Ω
• Low charge injection. . . . . . . . . . . . . . . . . . . . . . . 5pC (Max)
• Single supply operation . . . . . . . . . . . . . . . . . +2.7V to +12V
(t
= 28ns, t = 20ns). Cell phones, for example, often
ON
OFF
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.
• Low power consumption (P ) . . . . . . . . . . . . . . . . . . . .<5µW
D
• Low leakage current. . . . . . . . . . . . . . . . . . . . . . . . . 10nA
• Fast switching action
- t
- t
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28ns
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20ns
OFF
• Guaranteed break-before-make (ISL43122/ISL43210
only)
The ISL43120, ISL43121, ISL43122 are dual single-
pole/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.
• Minimum 2000V ESD protection per method 3015.7
• TTL, CMOS compatible
• Available in SOT-23 packaging
• Pb-Free Available (RoHS Compliant)
Applications
TABLE 1. FEATURES AT A GLANCE
• Battery powered, handheld, and portable equipment
- Cellular/mobile phones
ISL43120 ISL43121 ISL43122
ISL43210
Number of
Switches
2
2
2
1
- Pagers
- Laptops, notebooks, palmtops
NO/NO
32Ω
NC/NC
32Ω
NO/NC
32Ω
SPDT or
2 x 1 MUX
• Communications systems
- Radios, ADSL Modems
- PBX, PABX
SW 1 / SW 2
3.3V R
ON
32Ω
3.3V t /t
ON OFF
40ns/20ns 40ns/20ns 40ns/20ns 40ns /20ns
19Ω 19Ω 19Ω 19Ω
28ns/20ns 28ns/20ns 28ns/20ns 28ns/20ns
11Ω 11Ω 11Ω 11Ω
25ns/17ns 25ns/17ns 25ns/17ns 25ns/17ns
8 Ld SOT-23 6 Ld SOT-23
• Test & measurement equipment
- Ultrasound
5V R
ON
5V t /t
ON OFF
- Computerized Tomography (CT) Scanner
- Magnetic Resonance Image (MRI)
- Position Emission Tomography (PET) Scanner
- Electrocardiograph
12V R
ON
12V t /t
ON OFF
Packages
• 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
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
- Operational amplifier gain switching networks
- High frequency analog switching
- High speed multiplexing
- Integrator reset circuits
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
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
NO
1
2
3
4
8
7
6
5
COM
NC
1
2
3
4
8
7
6
5
COM
1
1
1
1
V+
V+
IN
IN
1
1
IN
IN
2
GND
GND
2
2
COM
COM
2
NO
2
NC
2
ISL43122 (SOT-23)
ISL43210 (SOT-23)
TOP VIEW
TOP VIEW
NO
1
2
3
4
8
7
6
5
COM
IN
1
2
3
6
5
4
NO
1
1
V+
V+
IN
1
COM
NC
IN
GND
GND
2
2
COM
NC
2
NOTE:
1. Switches Shown for Logic “0” Input.
Truth Table
Ordering Information
ISL43120 ISL43121
ISL43122
ISL43210
PART NO.
(BRAND)
TEMP.
RANGE (°C)
PKG.
DWG. #
PACKAGE
8 Ld SOT-23
LOGIC SW 1, 2 SW 1, 2 SW 1 SW 2 PIN NC PIN NO
ISL43120IH-T
(120I)
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
-40 to 85
P8.064
P8.064
P8.064
P8.064
P8.064
P8.064
P6.064
P6.064
0
1
OFF
ON
ON
OFF
ON
ON
ON
OFF
ON
Tape and Reel
OFF
OFF
OFF
ISL43120IHZ-T
(120I) (Note)
8 Ld SOT-23
Tape and Reel (Pb-free)
NOTE: Logic “0” ≤0.8V. Logic “1” ≥2.4V.
ISL43121IH-T
(121I)
8 Ld SOT-23
Tape and Reel
Pin Des criptions
ISL43121IHZ-T
(121I) (Note)
8 Ld SOT-23
Tape and Reel (Pb-free)
PIN
FUNCTION
V+
System Power Supply Input (+2.7V to +12V)
Ground Connection
ISL43122IH-T
(122I)
8 Ld SOT-23
Tape and Reel
GND
IN
Digital Control Input
ISL43122IHZ-T
(122I) (Note)
8 Ld SOT-23
Tape and Reel (Pb-free)
COM
NO
Analog Switch Common Pin
Analog Switch Normally Open Pin
Analog Switch Normally Closed Pin
No Internal Connection
ISL43210IH-T
(123I)
6 Ld SOT-23
Tape and Reel
NC
ISL43210IHZ-T
(123I) (Note)
6 Ld SOT-23
Tape and Reel (Pb-free)
N.C.
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.
FN6033.4
2
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
Thermal Resistance (Typical, Note 3)
θ
(°C/W)
JA
6 Ld SOT-23 Package . . . . . . . . . . . . . . . . . . . . . . .
8 Ld SOT-23 Package . . . . . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C
Moisture Sensitivity (See Technical Brief TB363)
230
215
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
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. θ is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
JA
Electrical Specifications - 5V Supply
Test Conditions: V+ = +4.5V to +5.5V, GND = 0V, V
Unless Otherwise Specified
= 2.4V, V
= 0.8V (Note 4),
INH
INL
TEMP (NOTE 5)
(NOTE 5)
PARAMETER
TEST CONDITIONS
(°C)
MIN
TYP
MAX
UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, V
Full
25
0
-
-
V+
30
40
2
V
Ω
ANALOG
ON Resistance, R
V+ = 4.5V, I
= 1.0mA, V or V
NO NC
= 3.5V
19
ON
COM
(See Figure 5)
Full
25
-
23
Ω
R
Matching Between Channels, V+ = 5V, I
= 1.0mA, V
NO
or V
NC
= 3.5V
-
0.8
Ω
ON
∆R
COM
ON
Full
Full
25
-
1
4
Ω
R
Flatness, R
V+ = 5V, I
= 1.0mA, V
or V = 1V, 2V, 3V
NC
-
7
8
Ω
ON
NO or NC OFF Leakage Current,
or I
FLAT(ON)
COM
NO
V+ = 5.5V, V
(Note 6)
= 1V, 4.5V, V
or V
= 4.5V, 1V
-0.1
-5
-0.1
-5
-0.2
-10
0.01
0.1
5
nA
nA
nA
nA
nA
nA
COM
COM
COM
NO
NC
I
NO(OFF)
NC(OFF)
Full
25
-
-
-
-
-
COM OFF Leakage Current,
V+ = 5.5V, V
(Note 6)
= 4.5V, 1V, V
or V
= 1V, 4.5V
0.1
5
NO
NC
I
COM(OFF)
Full
25
COM ON Leakage Current,
V+ = 5.5V, V
4.5V, or Floating (Note 6)
= 1V, 4.5V, or V
or V
= 1V,
NC
0.2
10
NO
I
COM(ON)
Full
DYNAMIC CHARACTERISTICS
Turn-ON Time, t
V
or V
= 3V, R =1kΩ, C = 35pF, V = 0 to 3V
IN
25
Full
25
-
-
28
40
20
30
10
75
150
50
ns
ns
ns
ns
ns
ON
NO
NC
L
L
(See Figure 1)
Turn-OFF Time, t
V
or V
= 3V, R =1kΩ, C = 35pF, V = 0 to 3V
-
OFF
NO
NC
L
L
IN
(See Figure 1)
Full
Full
-
100
-
Break-Before-Make Time Delay
R = 300Ω, C = 35pF, V
= V = 3V, V = 0 to 3V
NC IN
3
L
L
NO
(ISL43122, ISL43210), t
Charge Injection, Q
OFF Isolation
(See Figure 3)
D
C
R
R
R
= 1.0nF, V = 0V, R = 0Ω (See Figure 2)
25
25
25
25
25
25
-
-
-
-
-
-
3
76
-105
60
8
5
-
pC
dB
dB
dB
pF
pF
L
L
L
L
G
G
= 50Ω, C = 5pF, f = 1MHz (See Figure 4)
L
Crosstalk (Channel-to-Channel)
Power Supply Rejection Ratio
= 50Ω, C = 5pF, f = 1MHz (See Figure 6)
-
L
= 50Ω, C = 5pF, f = 1MHz
-
L
NO or NC OFF Capacitance, C
f = 1MHz, V
f = 1MHz, V
or V
= V
= V
= 0V (See Figure 7)
= 0V (See Figure 7)
-
OFF
NO
NO
NC
NC
COM
COM
COM OFF Capacitance,
or V
8
-
C
COM(OFF)
FN6033.4
3
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Electrical Specifications - 5V Supply
Test Conditions: V+ = +4.5V to +5.5V, GND = 0V, V
Unless Otherwise Specified (Continued)
= 2.4V, V
= 0.8V (Note 4),
(NOTE 5)
INH
INL
TEMP (NOTE 5)
PARAMETER
TEST CONDITIONS
(°C)
MIN
TYP
MAX
UNITS
COM ON Capacitance, C
f = 1MHz, V
or V
NC
= V
= 0V (See Figure 7),
= 0V (See Figure 7),
COM
25
-
21
-
pF
COM(ON)
NO
ISL43120, ISL43121, ISL43122
COM
f = 1MHz, V
ISL43210
or V
NC
= V
25
-
28
-
pF
NO
POWER SUPPLY CHARACTERISTICS
Power Supply Range
Full
Full
2.7
-1
-
12
1
V
Positive Supply Current, I+
V+ = 5.5V, V = 0V or V+, all channels on or off
IN
0.0001
µA
DIGITAL INPUT CHARACTERISTICS
Input Voltage Low, V
Full
Full
Full
-
-
-
-
0.8
-
V
V
INL
Input Voltage High, V
2.4
-1
INH
Input Current, I , I
INH INL
V+ = 5.5V, V = 0V or V+
IN
1
µA
NOTES:
4. V = input voltage to perform proper function.
IN
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
Test Conditions: V+ = +3.0V to +3.6V, GND = 0V, V
Unless Otherwise Specified
= 2.4V, V
= 0.8V (Note 4),
INH
INL
TEMP (NOTE 5)
(NOTE 5)
PARAMETER
TEST CONDITIONS
(°C)
MIN
TYP
MAX
UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, V
Full
25
0
-
32
40
0.8
1
V+
50
60
2
V
Ω
ANALOG
ON Resistance, R
V+ = 3V, I
= 1.0mA, V
or V = 1.5V
NC
-
-
ON
COM
NO
Full
25
Ω
R
Matching Between Channels, V+ = 3.3V, I
COM
= 1.0mA, V
NO
or V
NC
= 1.5V
-
Ω
ON
∆R
ON
Full
25
-
4
Ω
R
Flatness, R
V+ = 3.3V, I
= 1.0mA, V or V
NO NC
= 0.5V, 1V,
-
6
8
Ω
ON
FLAT(ON)
COM
1.5V
Full
25
-
7
12
0.1
5
Ω
NO or NC OFF Leakage Current,
or I
V+ = 3.6V, V
(Note 6)
= 1V, 3V, V
= 3V, 1V, V
or V
or V
= 3V, 1V
= 1V, 3V
-0.1
-5
-0.1
-5
-0.2
-10
0.01
-
nA
nA
nA
nA
nA
nA
COM
COM
COM
NO
NO
NC
NC
I
NO(OFF)
NC(OFF)
Full
25
COM OFF Leakage Current,
V+ = 3.6V, V
(Note 6)
0.01
-
0.1
5
I
COM(OFF)
Full
25
COM ON Leakage Current,
V+ = 3.6V, V
or floating (Note 6)
= 1V, 3V, or V
or V
= 1V, 3V,
NC
-
0.2
10
NO
I
COM(ON)
Full
-
DYNAMIC CHARACTERISTICS
Turn-ON Time, t
V
V
or V
= 0 to 3V
= 1.5V, R = 1kΩ, C = 35pF,
25
Full
25
-
-
40
60
20
30
20
120
200
50
ns
ns
ns
ns
ns
ON
NO
NC
L
L
IN
Turn-OFF Time, t
V
V
or V
= 0 to 3V
= 1.5V, R = 1kΩ, C = 35pF,
-
OFF
NO
NC
L
L
IN
Full
Full
-
120
-
Break-Before-Make Time Delay
R
= 300Ω, C = 35pF, V
or V
= 1.5V,
3
L
L
NO
NC
(ISL43122, ISL43210), t
Charge Injection, Q
OFF Isolation
V
C
R
= 0 to 3V
D
IN
= 1.0nF, V = 0V, R = 0Ω
25
25
25
25
25
-
-
-
-
-
1
76
-105
56
8
5
-
pC
dB
dB
dB
pF
L
L
G
G
= 50Ω, C = 5pF, f = 1MHz
L
Crosstalk (Channel-to-Channel)
Power Supply Rejection Ratio
-
R
= 50Ω, C = 5pF, f = 1MHz
-
L
L
NO or NC OFF Capacitance, C
f = 1MHz, V
or V
NC
= V = 0V
COM
-
OFF
NO
FN6033.4
4
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Electrical Specifications - 3.3V Supply
Test Conditions: V+ = +3.0V to +3.6V, GND = 0V, V
Unless Otherwise Specified (Continued)
= 2.4V, V
= 0.8V (Note 4),
(NOTE 5)
INH
INL
TEMP (NOTE 5)
PARAMETER
TEST CONDITIONS
(°C)
MIN
TYP
MAX
UNITS
COM OFF Capacitance,
f = 1MHz, V
f = 1MHz, V
or V
= V
= V
= V
= 0V
25
-
8
-
pF
pF
pF
NO
NO
NC
COM
COM
COM
C
COM(OFF)
COM ON Capacitance, C
or V
= 0V, ISL43120,
= 0V, ISL43210
25
25
-
-
21
28
-
-
COM(ON)
NC
ISL43121, ISL43122
f = 1MHz, V or V
NO
NC
POWER SUPPLY CHARACTERISTICS
Positive Supply Current, I+
V+ = 3.6V, V = 0V or V+, all channels on or off
IN
Full
-1
-
1
µA
DIGITAL INPUT CHARACTERISTICS
Input Voltage Low, V
Full
Full
Full
-
-
-
-
0.8
-
V
V
INL
Input Voltage High, V
2.4
-1
INH
Input Current, I
, I
V+ = 3.6V, V = 0V or V+
IN
1
µA
INH INL
Electrical Specifications - 12V Supply
Test Conditions: V+ = +10.8V to +13V, GND = 0V, V
Unless Otherwise Specified
= 4V, V
= 0.8V (Note 4),
INH
INL
TEMP (NOTE 5)
(NOTE5)
PARAMETER
TEST CONDITIONS
(°C)
MIN
TYP
MAX
UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, V
Full
25
0
-
V+
20
25
2
V
Ω
ANALOG
ON Resistance, R
V+ = 10.8V, I
= 1.0mA, V
or V = 10V
NC
-
-
11
ON
COM
NO
Full
25
15
Ω
R
Matching Between Channels, V+ = 12V, I
COM
= 1.0mA, V
NO
or V
NC
= 10V
-
0.8
Ω
ON
∆R
ON
Full
25
-
1
4
Ω
R
Flatness, R
V+ = 12V, I
= 1.0mA, V
or V = 3V, 6V, 9V
NC
-
1
4
Ω
ON
FLAT(ON)
COM
NO
Full
25
-
-
6
Ω
NO or NC OFF Leakage Current,
or I
V+ = 13V, V
(Note 6)
= 1V, 12V, V
= 12V, 1V, V
or V
= 12V, 1V
= 1V, 12V
-0.1
-5
-0.1
-5
-0.2
-10
0.01
0.1
5
nA
nA
nA
nA
nA
nA
COM
COM
COM
NO
NO
NC
NC
I
NO(OFF)
NC(OFF)
Full
25
-
COM OFF Leakage Current,
V+ = 13V, V
(Note 6)
or V
0.01
0.1
5
I
COM(OFF)
Full
25
-
-
-
COM ON Leakage Current,
V+ = 13V, V
or floating (Note 6)
= 1V, 12V, or V
or V
= 1V, 12V,
NC
0.2
10
NO
I
COM(ON)
Full
DYNAMIC CHARACTERISTICS
Turn-ON Time, t
V
V
or V
or V
= 10V, R = 1kΩ, C = 35pF, V = 0 to 4V
IN
25
Full
25
-
-
25
35
17
26
2
35
55
30
50
ns
ns
ns
ns
ns
ON
NO
NO
NC
NC
L
L
Turn-OFF Time, t
= 10V, R = 1kΩ, C = 35pF, V = 0 to 4V
-
OFF
L
L
IN
Full
Full
-
Break-Before-Make Time Delay
R
= 300Ω, C = 35pF, V
or V
= 10V,
0
L
L
NO
NC
(ISL43122, ISL43210), t
Charge Injection, Q
OFF Isolation
V
C
R
= 0 to 4V
D
IN
= 1.0nF, V = 0V, R = 0Ω
25
25
25
25
25
25
-
-
-
-
-
-
5
76
-105
63
8
15
-
pC
dB
dB
dB
pF
pF
L
L
G
G
= 50Ω, C = 5pF, f = 1MHz
L
Crosstalk (Channel-to-Channel)
Power Supply Rejection Ratio
-
R
= 50Ω, C = 5pF, f = 1MHz
-
L
L
NO or NC OFF Capacitance, C
f = 1MHz, V
f = 1MHz, V
or V
= V
= V
= 0V
= 0V
-
OFF
NO
NO
NC
NC
COM
COM
COM OFF Capacitance,
or V
8
-
C
COM(OFF)
COM ON Capacitance, C
f = 1MHz, V
ISL43121, ISL43122
or V
= V
= V
= 0V, ISL43120,
= 0V, ISL43210
25
25
-
-
21
28
-
-
pF
pF
COM(ON)
NO
NC
COM
COM
f = 1MHz, V or V
NO
NC
FN6033.4
5
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Electrical Specifications - 12V Supply
Test Conditions: V+ = +10.8V to +13V, GND = 0V, V
Unless Otherwise Specified (Continued)
= 4V, V
= 0.8V (Note 4),
(NOTE5)
INH
INL
TEMP (NOTE 5)
PARAMETER
TEST CONDITIONS
(°C)
MIN
TYP
MAX
UNITS
POWER SUPPLY CHARACTERISTICS
Positive Supply Current, I+
V+ = 13V, V = 0V or V+, all channels on or off
IN
Full
-1
-
1
µA
DIGITAL INPUT CHARACTERISTICS
Input Voltage Low, V
Full
Full
Full
-
-
-
-
0.8
-
V
V
INL
Input Voltage High, V
4
INH
Input Current, I
, I
V+ = 13V, V = 0V or V+
IN
-1
1
µA
INH INL
Tes t Circuits and Waveforms
V+
3V OR 4V
t < 20ns
r
t < 20ns
f
C
LOGIC
INPUT
50%
0V
NO
0V
t
V
OFF
OUT
NO or NC
SWITCH
INPUT
COM
SWITCH
INPUT
V
V
OUT
IN
90%
90%
C
35pF
R
LOGIC
INPUT
L
1kΩ
L
GND
SWITCH
OUTPUT
t
ON
Repeat test for all switches. C includes fixture and stray
L
Logic input waveform is inverted for switches that have the opposite
logic sense.
capacitance.
R
L
------------------------------
V
= V
(NO or NC)
OUT
R
+ R
(ON)
L
FIGURE 1A. MEASUREMENT POINTS
FIGURE 1B. TEST CIRCUIT
FIGURE 1. SWITCHING TIMES
V+
C
SWITCH
OUTPUT
V
OUT
R
G
∆V
COM
OUT
NO or NC
V
OUT
V+
0V
V
ON
ON
GND
IN
G
LOGIC
INPUT
C
L
OFF
LOGIC
INPUT
Q = ∆V
x C
L
OUT
FIGURE 2B. TEST CIRCUIT
FIGURE 2A. MEASUREMENT POINTS
FIGURE 2. CHARGE INJECTION
FN6033.4
April 12, 2005
6
ISL43120, ISL43121, ISL43122, ISL43210
Tes t Circuits and Waveforms (Continued)
V+
C
3V OR 4V
LOGIC
INPUT
0V
0V
0V
V
OUT1
NO1
NC2
V
NX
COM
1
C
V
R
L1
L1
35pF
OUT2
300Ω
90%
COM
SWITCH
OUTPUT
2
IN
IN
1
2
V
OUT1
R
C
L2
300Ω
L2
35pF
90%
SWITCH
OUTPUT
LOGIC
INPUT
GND
V
OUT2
t
t
D
D
C
L
includes fixture and stray capacitance.
FIGURE 3A. MEASUREMENT POINTS (ISL43122 ONLY)
FIGURE 3B. TEST CIRCUIT (ISL43122 ONLY)
V+
C
3V OR 4V
LOGIC
INPUT
NO
V
OUT
V
NX
COM
NC
IN
0V
C
R
300Ω
L
L
35pF
GND
90%
SWITCH
OUTPUT
LOGIC
INPUT
V
OUT
0V
t
D
C
includes fixture and stray capacitance.
FIGURE 3D. TEST CIRCUIT (ISL43210 ONLY)
FIGURE 3. BREAK-BEFORE-MAKE TIME
L
FIGURE 3C. MEASUREMENT POINTS (ISL43210 ONLY)
V+
V+
C
C
R
= V /1mA
1
ON
SIGNAL
GENERATOR
NO or NC
NO or NC
V
NX
IN
0V or V
INH
0.8V or V
INH
1mA
X
IN
V
1
COM
COM
ANALYZER
GND
GND
R
L
FIGURE 4. OFF ISOLATION TEST CIRCUIT
FIGURE 5. R
TEST CIRCUIT
ON
FN6033.4
7
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Tes t Circuits and Waveforms (Continued)
V+
C
V+
C
SIGNAL
GENERATOR
50Ω
NO1 or NC1
COM1
NO or NC
IN
1
0V or V
IN
INH
X
0V or V
0V or 2.4V
INH
IN
2
IMPEDANCE
ANALYZER
COM
NO2 or NC2
GND
COM2
ANALYZER
NC
GND
R
L
FIGURE 6. CROSSTALK TEST CIRCUIT
FIGURE 7. CAPACITANCE TEST CIRCUIT
unaffected by this approach, but the switch resistance may
increase, especially at low supply voltages.
Detailed Des cription
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
OPTIONAL PROTECTION
DIODE
high speed operation (t
= 28ns, t = 20ns). The devices
ON
OFF
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.
V+
OPTIONAL
PROTECTION
RESISTOR
IN
V
X
V
NO or NC
COM
Supply Sequencing And Overvoltage Protection
GND
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.
OPTIONAL PROTECTION
DIODE
FIGURE 8. OVERVOLTAGE PROTECTION
Power-Supply Cons iderations
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.
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
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.
purpose of using a low R
switch, so two small signal
ON
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
FN6033.4
8
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.
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.
This family of switches cannot be operated with bipolar
supplies, because the input switching point becomes
negative in this configuration.
Logic-Level Thres holds
This switch family is TTL compatible (0.8V and 2.4V) over a
Leakage Cons iderations
supply range of 3V to 11V (see Figure 15). At 12V the V
IH
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.
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 V
OH
greater than 3V.
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 analog-
signal-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.
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
Typical Performance Curves T = 25°C, Unless Otherwise Specified
A
45
40
V+ = 3.3V
40
35
30
25
20
35
30
25
20
15
85°C
25°C
-40°C
85°C
15
30
25
V+ = 5V
20
15
85°C
25°C
-40°C
25°C
-40°C
10
20
10
5
85°C
V+ = 12V
25°C
15
10
5
3
4
5
6
7
8
9
10
11
12
13
-40°C
V+ (V)
0
2
4
6
8
10
12
V
(V)
COM
FIGURE 10. ON RESISTANCE vs SWITCH VOLTAGE
FIGURE 9. ON RESISTANCE vs SUPPLY VOLTAGE
FN6033.4
9
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Typical Performance Curves T = 25°C, Unless Otherwise Specified (Continued)
A
0.5
60
50
40
30
20
10
0
V+ = 3.3V
0.4
0.3
0.2
25°C
85°C
0.1
0
-40°C
0.25
0.2
V+ = 5V
25°C
0.15
V+ = 5V
85°C
V+ = 12V
0.1
0.05
0
85°C
V+ = 3.3V
-40°C
0.15
V+ = 12V
25°C
25°C
0.1
0.05
0
-10
-20
-40°C
85°C
-40°C
0
2
4
6
8
10
12
0
2
4
6
8
10
12
V
(V)
V
(V)
COM
COM
FIGURE 11. R
MATCH vs SWITCH VOLTAGE
FIGURE 12. CHARGE INJECTION vs SWITCH VOLTAGE
35
ON
100
90
80
70
60
50
40
30
20
30
85°C
25
85°C
-40°C
-40°C
20
-40°C
25°C
25°C
5
15
2
3
4
6
7
8
9
10
11
12
2
3
4
5
6
7
8
9
10
11
12
V+ (V)
V+ (V)
FIGURE 13. TURN - ON TIME vs SUPPLY VOLTAGE
FIGURE 14. TURN - OFF TIME vs SUPPLY VOLTAGE
V+ = 3.3V to 12V
GAIN
3.0
2.5
2.0
1.5
1.0
0.5
0
-3
-6
V
INH
-40°C
85°C
0
PHASE
20
40
60
80
25°C
85°C
-40°C
25°C
11
R
= 50Ω
L
V
INL
V
V
V
= 0.2V
= 0.2V
= 0.2V
to 2.5V
to 4V
to 5V
(V+ = 3.3V)
P-P
IN
IN
IN
P-P
P-P
P-P
(V+ = 5V)
85°C
4
P-P
P-P
100
(V+ = 12V)
2
3
5
6
7
8
9
10
12
13
1
10
100
FREQUENCY (MHz)
600
V+ (V)
FIGURE 15. DIGITAL SWITCHING POINT vs SUPPLY VOLTAGE
FIGURE 16. FREQUENCY RESPONSE
FN6033.4
10
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Typical Performance Curves T = 25°C, Unless Otherwise Specified (Continued)
A
-10
-20
-30
-40
-50
-60
-70
-80
-90
10
20
30
40
50
60
70
80
90
R
= 50Ω
L
V+ = 3V to 13V
0
10
20
30
40
50
60
70
80
V+ = 3.3V, SWITCH OFF
V+ = 12V, SWITCH OFF
ISOLATION
V+ = 12V, SWITCH ON
V+ = 3.3V, SWITCH ON
CROSSTALK
-100
-110
100
110
0.3
1
10
100
1000
1K
10K
100K
1M
10M
100M 500M
FREQUENCY (Hz)
FREQUENCY (MHz)
FIGURE 17. CROSSTALK AND OFF ISOLATION
FIGURE 18. ±PSRR vs FREQUENCY
Die Characteris tics
SUBSTRATE POTENTIAL (POWERED UP):
GND
TRANSISTOR COUNT:
ISL43120: 66
ISL43121: 66
ISL43122: 66
ISL43210: 58
PROCESS:
Si Gate CMOS
FN6033.4
11
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Small Outline Trans is tor Plas tic Packages (SOT23-6)
VIEW C
P6.064
0.20 (0.008)
C
M
6 LEAD SMALL OUTLINE TRANSISTOR PLASTIC PACKAGE
C
L
INCHES
MIN
MILLIMETERS
e
b
6
SYMBOL
MAX
0.057
0.0059
0.051
0.020
0.018
0.009
0.008
0.118
0.118
0.068
MIN
0.90
0.00
0.90
0.30
0.30
0.08
0.08
2.80
2.60
1.50
MAX
1.45
0.15
1.30
0.50
0.45
0.22
0.20
3.00
NOTES
A
A1
A2
b
0.036
0.000
0.036
0.012
0.012
0.003
0.003
0.111
0.103
0.060
-
-
-
-
5
2
4
3
C
E1
L
C
E
L
1
b1
c
6
6
3
-
e1
C
c1
D
D
C
L
E
3.00
1.75
0.95 Ref
1.90 Ref
0.35 0.55
E1
e
3
-
SEATING
PLANE
0.0374 Ref
0.0748 Ref
0.014 0.022
A2
A1
A
e1
L
-
-C-
4
L1
L2
N
0.024 Ref.
0.010 Ref.
6
0.60 Ref.
0.25 Ref.
6
0.10 (0.004) C
5
b
WITH
R
0.004
-
0.10
-
PLATING
b1
R1
α
0.004
0.010
0.10
0.25
c
c1
o
o
o
o
0
8
0
8
-
Rev. 3 9/03
BASE METAL
NOTES:
1. Dimensioning and tolerance per ASME Y14.5M-1994.
2. Package conforms to EIAJ SC-74 and JEDEC MO178AB.
4X θ1
3. Dimensions D and E1 are exclusive of mold flash, protrusions,
or gate burrs.
R1
4. Footlength L measured at reference to gauge plane.
5. “N” is the number of terminal positions.
R
6. These Dimensions apply to the flat section of the lead between
0.08mm and 0.15mm from the lead tip.
GAUGE PLANE
SEATING
PLANE
L
7. Controlling dimension: MILLIMETER. Converted inch dimen-
sions are for reference only
C
α
L2
L1
4X θ1
VIEW C
FN6033.4
12
April 12, 2005
ISL43120, ISL43121, ISL43122, ISL43210
Small Outline Trans is tor Plas tic Packages (SOT23-8)
P8.064
0.20 (0.008) M
C
VIEW C
8 LEAD SMALL OUTLINE TRANSISTOR PLASTIC PACKAGE
C
L
e
INCHES
MIN
MILLIMETERS
b
8
SYMBOL
MAX
0.057
0.0059
0.051
0.015
0.013
0.009
0.008
0.118
0.118
0.067
MIN
0.90
0.00
0.90
0.22
0.22
0.08
0.08
2.80
2.60
1.50
MAX
1.45
0.15
1.30
0.38
0.33
0.22
0.20
3.00
3.00
1.70
NOTES
A
A1
A2
b
0.036
0.000
0.036
0.009
0.009
0.003
0.003
0.111
0.103
0.060
-
-
-
-
7
2
6
5
4
C
E1
L
C
L
E
1
3
b1
c
6
6
3
-
e1
D
c1
D
C
C
L
E
E1
e
3
-
0.0256 Ref
0.0768 Ref
0.014 0.022
0.65 Ref
1.95 Ref
0.35 0.55
SEATING
PLANE
A2
A1
A
e1
L
-
-C-
4
L1
L2
N
0.024 Ref.
0.010 Ref.
8
0.60 Ref.
0.25 Ref.
8
0.10 (0.004) C
5
b
R
0.004
-
0.10
-
WITH
PLATING
b1
R1
α
0.004
0.010
0.10
0.25
o
o
o
o
0
8
0
8
-
c
c1
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.
R1
4. Footlength L measured at reference to gauge plane.
5. “N” is the number of terminal positions.
R
6. These Dimensions apply to the flat section of the lead between
0.08mm and 0.15mm from the lead tip.
GAUGE PLANE
SEATING
PLANE
7. Controlling dimension: MILLIMETER. Converted inch dimen-
sions are for reference only
L
C
α
L2
L1
4X θ1
VIEW C
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
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
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
FN6033.4
13
April 12, 2005
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500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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