INTERSIL ISL84581

ISL84581
®
Data Sheet
February 9, 2007
Low-Voltage, Single and Dual Supply, 8 to
1 Multiplexer
The Intersil ISL84581 device contains precision, bidirectional,
analog switches configured as an 8 to 1 multiplexer/
demultiplexer. It was designed to operate from a single +2V to
+12V single supply or from dual ±2V to ±6V supplies. The
device has an inhibit pin to simultaneously open all signal
paths.
ON resistance of 39Ω with a dual ±5V supply and 125Ω with
a single +3.3V supply. Each switch can handle rail to rail
analog signals. The off-leakage current is only 0.1nA at
+25°C or 2.5nA at +85°C.
All digital inputs have 0.8V to 2.4V logic thresholds, ensuring
TTL/CMOS logic compatibility when using a single 3.3V or
+5V supply or dual ±5V supplies.
The ISL84581 is a single 8 to 1 multiplexer device. Table 1
summarizes the performance of the part.
SINGLE 8:1 MUX
±5V RON
39Ω
±5V tON/tOFF
32ns/18ns
12V RON
32Ω
12V tON/tOFF
23ns/15ns
5V RON
65Ω
5V tON/tOFF
38ns/19ns
3.3V RON
125Ω
3.3V tON/tOFF
70ns/32ns
Package
16 Ld TSSOP
• Fully Specified at 3.3V, 5V, ±5V, and 12V Supplies for 10%
Tolerances
• ON Resistance (RON) Max, VS = ±4.5V. . . . . . . . . . . 50Ω
• ON Resistance (RON) Max, VS = +3V . . . . . . . . . . . 155Ω
• RON Matching Between Channels, VS = ±5V. . . . . . . . . <2Ω
• Low Charge Injection, VS = ±5V . . . . . . . . . . . . . 1pC (Max)
• Single Supply Operation. . . . . . . . . . . . . . . . . . . +2V to +12V
• Dual Supply Operation . . . . . . . . . . . . . . . . . . . . . ±2V to ±6V
• Fast Switching Action (VS = +5V)
- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38ns
- tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19ns
• Guaranteed Max Off-leakage . . . . . . . . . . . . . . . . . . . 2.5nA
• Guaranteed Break-Before-Make
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Battery Powered, Handheld, and Portable Equipment
• Communications Systems
- Radios
- Telecom Infrastructure
- ADSL, VDSL Modems
• Test Equipment
- Medical Ultrasound
- Magnetic Resonance Image
- CT and PET Scanners (MRI)
- ATE
- Electrocardiograph
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
• Application Note AN520 “CMOS Analog Multiplexers and
Switches; Specifications and Application Considerations.”
• Application Note AN1034 “Analog Switch and Multiplexer
Applications”
1
Features
• TTL, CMOS Compatible
TABLE 1. FEATURES AT A GLANCE
CONFIGURATION
FN6416.0
• Audio and Video Signal Routing
• Various Circuits
- +3V/+5V DACs and ADCs
- Sample and Hold Circuits
- 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.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL84581
Pinouts
ISL84581 (16 LD TSSOP)
TOP VIEW
NO1 1
16 V+
NO3 2
15 NO2
COM 3
14 NO4
NO7 4
13 NO0
NO5 5
12 NO6
INH 6
LOGIC
11 ADDC
V- 7
10 ADDB
GND 8
9 ADDA
NOTE:
1. Switches Shown for Logic “0” Inputs.
Truth Tables
Pin Descriptions
ISL84581
PIN
FUNCTION
INH
ADDC
ADDB
ADDA
SWITCH ON
V+
Positive Power Supply Input
0
0
0
0
NO0
V-
0
0
0
1
NO1
Negative Power Supply Input. Connect to GND for
Single Supply Configurations.
0
0
1
0
NO2
0
0
1
1
NO3
0
1
0
0
NO4
ADDx
Address Input Pin
0
1
0
1
NO5
COM
Analog Switch Common Pin
0
1
1
0
NO6
NOx
Analog Switch Normally Open Pin
0
1
1
1
NO7
1
X
X
X
NONE
GND
Ground Connection
INH
Digital Control Input. Connect to GND for Normal
Operation. Connect to V+ to turn all switches off.
NOTE: Logic “0” ≤0.8V. Logic “1” ≥2.4V, with V+ between 2.7V and
10V. X = Don’t Care.
Ordering Information
PART NO.
BRAND
TEMP RANGE (°C)
PACKAGE
PKG.
DWG. #
ISL84581IVZ (See Note)
84581IVZ
-40 to +85
16 Ld TSSOP (Pb-free)
M16.173
ISL84581IVZ-T (See Note)
84581IVZ
-40 to +85
16 Ld TSSOP, Tape and Reel (Pb-free)
M16.173
NOTE: Intersil Pb-free plus anneal 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
FN6416.0
February 9, 2007
ISL84581
Absolute Maximum Ratings
Thermal Information
V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to15V
V+ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to15V
V- to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15 to 0.3V
Input Voltages
INH, NOx, ADDx (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 NOx, COM
(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . . ±100mA
ESD Rating
HBM (Per Mil-STD-883, Method 3015.7) . . . . . . . . . . . . . . >2.5kV
Thermal Resistance (Typical, Note 3)
θJA (°C/W)
16 Ld TSSOP Package . . . . . . . . . . . . . . . . . . . . . .
110
Maximum Junction Temperature (Plastic Package). . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . +300°C
(Lead Tips Only)
Operating Conditions
Temperature Range
ISL84581IVZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -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 NOx, COM, ADDx, INH exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to maximum current ratings.
3. θJA is measured with the component mounted on a high effective thermal conductivity test board with direct die attach. See Tech Brief TB379
for details.
Electrical Specifications ±5V Supply
Test Conditions: VSUPPLY = ±4.5V to ±5.5V, GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified
TEMP
(°C)
(NOTE 5)
MIN
TYP
Full
V-
-
V+
V
25
-
44
60
Ω
Full
-
-
80
Ω
25
-
1.3
4
Ω
Full
-
-
6
Ω
25
-
7.5
9
Ω
Full
-
-
12
Ω
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
Input Voltage High, VINHH, VADDH
Full
2.4
-
-
V
Input Voltage Low, VINHL, VADDL
Full
-
-
0.8
V
Input Current, IADDH, IADDL, IINHH, IINHL VS = ±5.5V, VINH, VADD = 0V or V+
Full
-0.5
-
0.5
μA
25
-
35
50
ns
Full
-
-
60
ns
PARAMETER
TEST CONDITIONS
(NOTE 5)
MAX
UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, VANALOG
VS = ±4.5V, ICOM = 2mA, VNO = 3V
(See Figure 5)
ON Resistance, RON
RON Matching Between Channels, ΔRON VS = ±4.5V, ICOM = 2mA, VNO = 3V (Note 6)
VS = ±4.5V, ICOM = 2mA, VNO = ±3V, 0V (Note 7)
RON Flatness, RFLAT(ON)
NO OFF Leakage Current, INO(OFF)
COM OFF Leakage Current, ICOM(OFF)
COM ON Leakage Current, ICOM(ON)
VS = ±5.5V, VCOM = ±4.5V, VNO = +4.5V (Note 8)
VS = ±5.5V, VCOM = ±4.5V, VNO = +4.5V (Note 8)
VS = ±5.5V, VCOM = VNO = ±4.5V (Note 8)
DIGITAL INPUT CHARACTERISTICS
DYNAMIC CHARACTERISTICS
VS = ±4.5V, VNO = ±3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3 (See Figure 1)
INHIBIT Turn-ON Time, tON
3
FN6416.0
February 9, 2007
ISL84581
Electrical Specifications ±5V Supply
PARAMETER
Test Conditions: VSUPPLY = ±4.5V to ±5.5V, GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified (Continued)
TEST CONDITIONS
VS = ±4.5V, VNO = ±3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3 (See Figure 1)
INHIBIT Turn-OFF Time, tOFF
VS = ±4.5V, VNO = ±3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3 (See Figure 1)
Address Transition Time, tTRANS
TEMP
(°C)
(NOTE 5)
MIN
TYP
(NOTE 5)
MAX
UNITS
25
-
22
35
ns
Full
-
-
40
ns
25
-
43
60
ns
Full
-
-
70
ns
Break-Before-Make Time, tBBM
VS = ±5.5V, VNO = 3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V (See Figure 3)
Full
2
7
-
ns
Charge Injection, Q
CL = 1.0nF, VG = 0V, RG = 0Ω (See Figure 2)
25
-
0.3
1
pC
NO OFF Capacitance, COFF
f = 1MHz, VNO = VCOM = 0V (See Figure 6)
25
-
3
-
pF
COM OFF Capacitance, COFF
f = 1MHz, VNO = VCOM = 0V (See Figure 6)
25
-
21
-
pF
COM ON Capacitance, CCOM(ON)
f = 1MHz, VNO = VCOM = 0V (See Figure 6)
25
-
26
-
pF
OFF Isolation
RL = 50Ω, CL = 15pF, f = 100kHz, VNOx = 1VRMS
(See Figures 4 and 18)
25
-
92
-
dB
Full
±2
-
±6
V
Full
-7
-
7
μA
Full
-1
-
1
μA
POWER SUPPLY CHARACTERISTICS
Power Supply Range
VS = ±5.5V, VINH, VADD = 0V or V+, Switch On or
Off
Positive Supply Current, I+
Negative Supply Current, I-
Electrical Specifications +12V Supply
Test Conditions: V+ = +10.8V to +13.2V, GND = 0V, VINH = 4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified
TEMP
(°C)
(NOTE 5)
MIN
TYP
Full
0
-
V+
V
25
-
37
45
Ω
Full
-
-
55
Ω
25
-
1.2
2
Ω
Full
-
-
2
Ω
25
-
5
7
Ω
Full
-
-
7
Ω
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
Input Voltage High, VINHH, VADDH
Full
3.7
3.3
-
V
Input Voltage Low, VINHL, VADDL
Full
-
2.7
0.8
V
Full
-0.5
-
0.5
μA
PARAMETER
TEST CONDITIONS
(NOTE 5)
MAX
UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, VANALOG
ON Resistance, RON
V+ = 10.8V, ICOM = 1.0mA, VNO = 9V (See Figure 5)
RON Matching Between Channels,
ΔRON
V+ = 10.8V, ICOM = 1.0mA, VNO = 9V (Note 6)
RON Flatness, RFLAT(ON)
V+ = 10.8V, ICOM = 1.0mA, VNO = 3V, 6V, 9V (Note 7)
NO OFF Leakage Current, INO(OFF)
COM OFF Leakage Current,
ICOM(OFF)
V+ = 13.2V, VCOM = 1V, 12V, VNO = 12V, 1V (Note 8)
V+ = 13.2V, VCOM = 12V, 1V, VNO = 1V, 12V (Note 8)
COM ON Leakage Current, ICOM(ON) V+ = 13.2V, VCOM = 1V, 12V, VNO = 1V, 12V, or
floating (Note 8)
DIGITAL INPUT CHARACTERISTICS
Input Current, IADDH, IADDL, IINHH,
IINHL
4
V+ = 13.2V, VINH, VADD = 0V or V+
FN6416.0
February 9, 2007
ISL84581
Electrical Specifications +12V Supply
PARAMETER
Test Conditions: V+ = +10.8V to +13.2V, 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
25
-
24
40
ns
Full
-
-
45
ns
25
-
15
30
ns
Full
-
-
35
ns
25
-
27
50
ns
Full
-
-
55
ns
DYNAMIC CHARACTERISTICS
V+ = 10.8V, VNO = 10V, RL = 300Ω, CL = 35pF,
VIN = 0 to 4 (See Figure 1)
INHIBIT Turn-ON Time, tON
INHIBIT Turn-OFF Time, tOFF
V+ = 10.8V, VNO = 10V, RL = 300Ω, CL = 35pF,
VIN = 0 to 4 (See Figure 1)
Address Transition Time, tTRANS
V+ = 10.8V, VNO = 10V, RL = 300Ω, CL = 35pF,
VIN = 0 to 4 (See Figure 1)
Break-Before-Make Time Delay, tD
V+ = 13.2V, RL = 300Ω, CL = 35pF, VNO = 10V,
VIN = 0 to 4 (See Figure 3)
Full
2
5
-
ns
Charge Injection, Q
CL = 1.0nF, VG = 0V, RG = 0Ω (See Figure 2)
25
-
2.7
5
pC
OFF Isolation
RL = 50Ω, CL = 15pF, f = 100kHz
(See Figure 4 and 18)
25
-
92
-
dB
NO OFF Capacitance, COFF
f = 1MHz, VNO = VCOM = 0V (See Figure 6)
25
-
3
-
pF
COM OFF Capacitance, CCOM(OFF)
f = 1MHz, VNO = VCOM = 0V
(See Figure 6)
25
-
21
-
pF
COM ON Capacitance, CCOM(ON)
f = 1MHz, VNO = VCOM = 0V
(See Figure 6)
25
-
26
-
pF
Full
2
-
12
V
Full
-7
-
7
μA
POWER SUPPLY CHARACTERISTICS
Power Supply Range
Positive Supply Current, I+
V+ = 13.2V, VINH, VADD = 0V or V+, all
channels on or off
Electrical Specifications 5V Supply
PARAMETER
Test Conditions: V+ = +4.5V to +5.5V, V- = GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified
TEST CONDITIONS
TEMP
(°C)
(NOTE 5)
MIN
TYP
(NOTE 5)
MAX
UNITS
Full
0
-
V+
V
25
-
81
100
Ω
Full
-
-
120
Ω
25
-
2.2
4
Ω
Full
-
-
6
Ω
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, VANALOG
V+ = 4.5V, ICOM = 1.0mA, VNO = 3.5V
(See Figure 5)
ON Resistance, RON
RON Matching Between Channels,
ΔRON
V+ = 4.5V, ICOM = 1.0mA, VNO = 3V (Note 6)
RON Flatness, RFLAT(ON)
V+ = 4.5V, ICOM = 1.0mA, VNO = 1V, 2V, 3V
(Note 7)
Full
-
11.5
-
Ω
NO OFF Leakage Current, INO(OFF)
V+ = 5.5V, VCOM = 1V, 4.5V, VNO = 4.5V, 1V
(Note 8)
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
Full
2.4
-
-
V
COM OFF Leakage Current, ICOM(OFF) V+ = 5.5V, VCOM = 1V, 4.5V, VNO = 4.5V, 1V
(Note 8)
COM ON Leakage Current, ICOM(ON)
V+ = 5.5V, VCOM = VNO = 4.5V (Note 8)
DIGITAL INPUT CHARACTERISTICS
Input Voltage High, VINHH, VADDH
5
FN6416.0
February 9, 2007
ISL84581
Electrical Specifications 5V Supply
Test Conditions: V+ = +4.5V to +5.5V, V- = GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified (Continued)
TEMP
(°C)
(NOTE 5)
MIN
TYP
Full
-
-
0.8
V
V+ = 5.5V, VINH, VADD = 0V or V+
Full
-0.5
-
0.5
μA
V+ = 4.5V, VNO = 3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V (See Figure 1)
25
-
43
60
ns
Full
-
-
70
ns
25
-
20
35
ns
Full
-
-
40
ns
25
-
51
70
ns
Full
-
-
85
ns
PARAMETER
TEST CONDITIONS
Input Voltage Low, VINHL, VADDL
Input Current, IADDH, IADDL, IINHH,
IINHL
(NOTE 5)
MAX
UNITS
DYNAMIC CHARACTERISTICS
INHIBIT Turn-ON Time, tON
INHIBIT Turn-OFF Time, tOFF
V+ = 4.5V, VNO = 3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V (See Figure 1)
Address Transition Time, tTRANS
V+ = 4.5V, VNO = 3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V (See Figure 1)
Break-Before-Make Time, tBBM
V+ = 5.5V, VNO = 3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V (See Figure 3)
Full
2
9
-
ns
Charge Injection, Q
CL = 1.0nF, VG = 0V, RG = 0Ω (See Figure 2)
25
-
0.6
1.5
pC
OFF Isolation
RL = 50Ω, CL = 15pF, f = 100kHz,
VNOx = 1VRMS (See Figures 4 and 18)
25
-
92
-
dB
Full
2
-
12
V
Full
-7
-
7
μA
Full
-1
-
1
μA
POWER SUPPLY CHARACTERISTICS
Power Supply Range
V+ = 5.5V, V- = 0V, VINH, VADD = 0V or V+,
Switch On or Off
Positive Supply Current, I+
Positive Supply Current, I-
Electrical Specifications 3.3V Supply
PARAMETER
Test Conditions: V+ = +3.0V to +3.6V, V- = GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified
TEST CONDITIONS
TEMP
(°C)
(NOTE 5)
MIN
TYP
(NOTE 5)
MAX
UNITS
Full
0
-
V+
V
25
-
135
180
Ω
Full
-
-
200
Ω
25
-
3.4
8
Ω
Full
-
-
10
Ω
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, VANALOG
ON Resistance, RON
V+ = 3.0V, ICOM = 1.0mA, VNO = 1.5V
(See Figure 5)
RON Matching Between Channels,
ΔRON
V+ = 3.0V, ICOM = 1.0mA, VNO = 1.5V (Note 6)
RON Flatness, RFLAT(ON)
V+ = 3.0V, ICOM = 1.0mA, VNO = 0.5V, 1V, 2V
(Note 7)
Full
-
34
-
Ω
NO OFF Leakage Current, INO(OFF)
V+ = 3.6V, VCOM = 0V, 4.5V, VNO = 3V, 1V
(Note 8)
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
25
-0.1
0.002
0.1
nA
Full
-2.5
-
2.5
nA
Input Voltage High, VINHH, VADDH
Full
2.4
-
-
V
Input Voltage Low, VINHL, VADDL
Full
-
-
0.8
V
COM OFF Leakage Current,
ICOM(OFF)
V+ = 3.6V, VCOM = 0V, 4.5V, VNO = 3V, 1V
(Note 8)
COM ON Leakage Current, ICOM(ON)
V+ = 3.6V, VCOM = VNO = 3V (Note 8)
DIGITAL INPUT CHARACTERISTICS
6
FN6416.0
February 9, 2007
ISL84581
Electrical Specifications 3.3V Supply
Test Conditions: V+ = +3.0V to +3.6V, V- = GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 4),
Unless Otherwise Specified (Continued)
TEMP
(°C)
(NOTE 5)
MIN
TYP
V+ = 3.6V, VINH, VADD = 0V or V+
Full
-0.5
-
0.5
μA
V+ = 3.0V, VNO = 1.5V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V (See Figure 1)
25
-
82
100
ns
Full
-
-
120
ns
25
-
37
50
ns
Full
-
-
60
ns
25
-
96
120
ns
Full
-
-
145
ns
PARAMETER
TEST CONDITIONS
Input Current, IADDH, IADDL, IINHH,
IINHL
(NOTE 5)
MAX
UNITS
DYNAMIC CHARACTERISTICS
INHIBIT Turn-ON Time, tON
INHIBIT Turn-OFF Time, tOFF
V+ = 3.0V, VNO = 1.5V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V (See Figure 1)
V+ = 3.0V, VNO = 1.5V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V (See Figure 1)
Address Transition Time, tTRANS
Break-Before-Make Time, tBBM
V+ = 3.6V, VNO = 1.5V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V (See Figure 3)
Full
3
13
-
ns
Charge Injection, Q
CL = 1.0nF, VG = 0V, RG = 0Ω (See Figure 2)
25
-
0.3
1
pC
OFF Isolation
RL = 50Ω, CL = 15pF, f = 100kHz,
VNO = 1VRMS (See Figures 4 and 18)
25
-
92
-
dB
Full
2
-
12
V
POWER SUPPLY CHARACTERISTICS
Power Supply Range
NOTES:
4. VIN = Input logic voltage to configure the device in a given state.
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. ΔRON = RON (MAX) - RON (MIN).
7. Flatness is defined as the difference between maximum and minimum value of on-resistance over the specified analog signal range.
8. Leakage parameter is 100% tested at high temp, and guaranteed by correlation at +25°C.
9. Between any two switches.
Test Circuits and Waveforms
V+
3V
LOGIC
INPUT
tr < 20ns
tf < 20ns
50%
V-
C
C
0V
V+
tON
VNO0
SWITCH
OUTPUT
C
90%
VOUT
NO0
NO1-NO7
INH
90%
0V
LOGIC
INPUT
COM
GND ADDA-C
VOUT
RL
300Ω
CL
35pF
tOFF
Logic input waveform is inverted for switches that have the opposite
logic sense.
FIGURE 1A. INHIBIT tON/tOFF MEASUREMENT POINTS
7
Repeat test for other switches. CL includes fixture and stray
capacitance.
RL
-----------------------------V OUT = V
(NO or NC) R + R
L
( ON )
FIGURE 1B. INHIBIT tON/tOFF TEST CIRCUIT
FN6416.0
February 9, 2007
ISL84581
Test Circuits and Waveforms
(Continued)
3V
LOGIC
INPUT
tr < 20ns
tf < 20ns
50%
V+
C
V-
C
C
0V
V+
tTRANS
NO0
V-
NO7
C
VOUT
VNO0
SWITCH
OUTPUT
NO1-NO6
90%
0V
VOUT
COM
ADDA-C GND
INH
CL
35pF
RL
300Ω
LOGIC
INPUT
10%
VNOX
tTRANS
Logic input waveform is inverted for switches that have the opposite
logic sense.
Repeat test for other switches. CL includes fixture and stray
capacitance.
RL
V OUT = V (NO or NC) -----------------------------R L + R ( ON )
FIGURE 1D. ADDRESS tTRANS TEST CIRCUIT
FIGURE 1C. ADDRESS tTRANS MEASUREMENT POINTS
FIGURE 1. SWITCHING TIMES
V+
V-
C
C
3V
LOGIC
INPUT
OFF
OFF
ON
0V
VOUT
RG
COM
NO
SWITCH
OUTPUT
VOUT
0Ω
ΔVOUT
ADDX
GND
VG
INH
LOGIC
INPUT
Q = ΔVOUT x CL
CL
1nF
Repeat test for other switches.
FIGURE 2A. Q MEASUREMENT POINTS
FIGURE 2B. Q TEST CIRCUIT
FIGURE 2. CHARGE INJECTION
V+
tr < 20ns
tf < 20ns
3V
V-
C
C
LOGIC
INPUT
COM
0V
LOGIC
INPUT
tBBM
FIGURE 3A. tBBM MEASUREMENT POINTS
CL
35pF
ADDA-C
80%
0V
VOUT
RL
300Ω
NO0-NO7
V+
SWITCH
OUTPUT
VOUT
C
GND
INH
Repeat test for other switches. CL includes fixture and stray
capacitance.
FIGURE 3B. tBBM TEST CIRCUIT
FIGURE 3. BREAK-BEFORE-MAKE TIME
8
FN6416.0
February 9, 2007
ISL84581
Test Circuits and Waveforms
V+
C
(Continued)
V-
V+
C
V-
C
C
RON = V1/1mA
SIGNAL
GENERATOR
NO
NOx
VNOX
0V or V+
1mA
ADDX
ANALYZER
COM
0V or V+
GND
0V or V+
V1
ADDX
COM
INH
GND
INH
RL
FIGURE 4. OFF ISOLATION TEST CIRCUIT
FIGURE 5. RON TEST CIRCUIT
V+
V-
C
C
NOx
0V or V+
ADDX
IMPEDANCE
ANALYZER
COM
GND
INH
FIGURE 6. CAPACITANCE TEST CIRCUIT
Detailed Description
The ISL84581 multiplexer offers precise switching capability
from bipolar ±2V to ±6Vsupplies or a single 2V to 12V supply.
When powered with dual ±5V supplies the part has low onresistance (39Ω) and high speed operation (tON = 38ns,
tOFF = 19ns).
It has an inhibit pin to simultaneously open all signal paths.
The device is especially well suited for applications using
±5V supplies. With ±5V supplies the performance (RON,
Leakage, Charge Injection, etc.) is best in class.
High frequency applications also benefit from the wide
bandwidth and high off isolation.
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
9
ESD protection diodes from the pin to V+ and to V- (see
Figure 7). To prevent forward biasing these diodes, V+ and
V- must be applied before any input signals, and input signal
voltages must remain between V+ and V-. 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 7). 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.
This method is not applicable for the signal path inputs.
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 7). These
additional diodes limit the analog signal from 1V below V+ to
FN6416.0
February 9, 2007
ISL84581
1V above V-. The low leakage current performance is
unaffected by this approach, but the switch resistance may
increase, especially at low supply voltages.
OPTIONAL
PROTECTION
RESISTOR
FOR LOGIC
INPUTS
1kΩ
OPTIONAL PROTECTION
DIODE
V+
LOGIC
VCOM
VNOx
VOPTIONAL PROTECTION
DIODE
FIGURE 7. INPUT OVERVOLTAGE PROTECTION
Power-Supply Considerations
The ISL84581 construction is typical of most CMOS analog
switches, in that it has three supply pins: V+, V-, and GND.
V+ and V- drive the internal CMOS switches and set their
analog voltage limits, so there are no connections between
the analog signal path and GND. Unlike switches with a 13V
maximum supply voltage, the ISL84581 15V maximum
supply voltage provides plenty of room for the 10% tolerance
of 12V supplies (±6V or 12V single supply), as well as room
for overshoot and noise spikes.
The part performs equally well when operated with bipolar or
single voltage supplies.The minimum recommended supply
voltage is 2V single supply or ±2V dual supply. It is important
to note that the input signal range, switching times, and onresistance degrade at lower supply voltages. Refer to the
electrical specification tables and “Typical Performance
Curves” on page 11 for details.
High-Frequency Performance
In 50Ω systems, signal response is reasonably flat even past
100MHz (see Figures 16 and 17). Figures 16 and 17 also
illustrates that the frequency response is very consistent
over varying analog signal levels.
An OFF switch acts like a capacitor and passes higher
frequencies with less attenuation, resulting in signal feed
through from a switch’s input to its output. Off Isolation is the
resistance to this feed through. Figure 18 details the high Off
Isolation of the ISL84581. At 10MHz, Off Isolation is about
55dB in 50Ω systems, decreasing approximately 20dB per
decade as frequency increases. Higher load impedances
decrease Off Isolation 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 V-. One
of these diodes conducts if any analog signal exceeds V+
or V-.
Virtually all the analog leakage current comes from the ESD
diodes to V+ or V-. 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 V- 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 V- pins constitutes the analog-signalpath 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 GND.
V+ and GND power the internal logic setting the digital
switching point of the level shifters. The level shifters convert
the logic levels to switched V+ and V- signals to drive the
analog switch gate terminals.
Logic-Level Thresholds
V+ and GND power the internal logic stages, so V- has no
affect on logic thresholds. This ISL84581 is TTL compatible
(0.8V and 2.4V) over a V+ supply range of 2.7V to 10V. At
12V the VIH level is about 3.3V. This is still below the CMOS
guaranteed high output minimum level of 4V, but noise
margin is reduced. For best results with a 12V supply, use a
logic family that provides a VOH greater than 4V.
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.
10
FN6416.0
February 9, 2007
ISL84581
Typical Performance Curves TA = +25°C, Unless Otherwise Specified
70
VCOM = (V+) - 1V
ICOM = 1mA
V- = -5V
60
+85°C
40
+25°C
30
-40°C
20
400
RON (Ω)
RON (Ω)
50
V- = 0V
300
200
+85°C
120
110
100
90
80
70
60
50
90
80
70
60
50
40
30
60
-40°C
VS = ±3V
+85°C
+25°C
-40°C
VS = ±5V
+85°C
+25°C
40
100
-40°C
30
-40°C
20
2
3
4
5
6
7
V+ (V)
8
9
10
11
-5
12
FIGURE 8. ON RESISTANCE vs SUPPLY VOLTAGE
225
200
-4
-3
-1
-2
RON (Ω)
V+ = 3.3V
-40°C
V- = 0V
V- = 0V
+85°C
40
35
+25°C
30
V+ = 5V
+85°C
V- = 0V
25
+25°C
-40°C
-40°C
0
1
5
45
+85°C
+25°C
4
50
V+ = 2.7V
V- = 0V
-40°C
75
160
140
120
100
80
60
100
90
80
70
60
50
40
3
ICOM = 1mA
V+ = 12V
+85°C
+25°C
2
60
55
125
100
1
0
VCOM (V)
FIGURE 9. ON RESISTANCE vs SWITCH VOLTAGE
ICOM = 1mA
175
150
RON (Ω)
VS = ±2V
+85°C
+25°C
50
+25°C
0
ICOM = 1mA
2
VCOM (V)
3
4
FIGURE 10. ON RESISTANCE vs SWITCH VOLTAGE
11
20
5
0
2
4
6
8
10
12
VCOM (V)
FIGURE 11. ON RESISTANCE vs SWITCH VOLTAGE
FN6416.0
February 9, 2007
ISL84581
Typical Performance Curves TA = +25°C, Unless Otherwise Specified (Continued)
200
500
400
-40°C
200
tOFF (ns)
-40°C
V- = 0V
200
+85°C
150
50
0
100
V- = 0V
80
85°C
+85°C
+25°C
25°C
40
20
-40°C
0
0
2
85°C
+85°C
-40°C
60
+25°C
100
25°C
+25°C
50
+85°C
100
0
250
+25°C
100
+25°C
3
4
5
6
7
8
9
10
11
12
-40°C
2
3
4
5
6
8
7
10
9
11
12
V+ (V)
V+ (V)
FIGURE 12. INHIBIT TURN - ON TIME vs SUPPLY VOLTAGE
300
FIGURE 13. INHIBIT TURN - OFF TIME vs SUPPLY VOLTAGE
250
VCOM = (V+) - 1V
VCOM = (V+) - 1V
V- = 0V
250
200
tRANS (ns)
200
tRANS (ns)
VCOM = (V+) - 1V
V- = -5V
-40°C
150
+25°C
300
tON (ns)
VCOM = (V+) - 1V
V- = -5V
150
100
150
100
+25°C
+25°C
+85°C
+85°C
50
50
-40°C
-40°C
0
0
2
3
4
5
6
7
8
9
10
11
12
V+ (V)
FIGURE 14. ADDRESS TRANS TIME vs SINGLE SUPPLY
VOLTAGE
12
13
2
3
4
5
6
V± (V)
FIGURE 15. ADDRESS TRANS TIME vs DUAL SUPPLY
VOLTAGE
FN6416.0
February 9, 2007
ISL84581
VIN = 0.2VP-P to 5VP-P
GAIN
0
-3
VS = ±3V
GAIN
0
-3
0
PHASE
VIN = 0.2VP-P to 4VP-P
3
0
PHASE
45
45
90
90
135
180
135
180
RL = 50Ω
RL = 50Ω
1
10
100
600
1
10
FREQUENCY (MHz)
100
600
FREQUENCY (MHz)
FIGURE 17. FREQUENCY RESPONSE
FIGURE 16. FREQUENCY RESPONSE
-10
3
V+ = 3V to 12V or
-20 VS = ±2V to ±5V
RL = 50Ω
-30
2
V+ = 3.3V
V- = 0V
1
-40
-50
V+ = 12V
V- = 0V
0
-60
Q (pC)
OFF ISOLATION (dB)
PHASE (°)
NORMALIZED GAIN (dB)
VS = ±5V
3
PHASE (°)
NORMALIZED GAIN (dB)
Typical Performance Curves TA = +25°C, Unless Otherwise Specified (Continued)
ISOLATION
-70
V+ = 5V
V- = 0V
-1
VS = ±5V
-2
-80
-90
-3
-100
-110
1k
-4
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 18. OFF ISOLATION
100M 500M
-5
-2.5
0
2.5
5
7.5
10
12
VCOM (V)
FIGURE 19. CHARGE INJECTION vs SWITCH VOLTAGE
Die Characteristics
SUBSTRATE POTENTIAL (POWERED UP):
VTRANSISTOR COUNT:
193
PROCESS:
Si Gate CMOS
13
FN6416.0
February 9, 2007
ISL84581
Thin Shrink Small Outline Plastic Packages (TSSOP)
M16.173
N
16 LEAD THIN SHRINK SMALL OUTLINE PLASTIC PACKAGE
INDEX
AREA
E
0.25(0.010) M
E1
2
INCHES
GAUGE
PLANE
-B1
B M
0.05(0.002)
-A-
SYMBOL
MIN
MAX
MIN
MAX
NOTES
A
-
0.043
-
1.10
-
A1
3
L
A
D
-C-
e
α
A1
b
0.10(0.004) M
0.25
0.010
SEATING PLANE
c
0.10(0.004)
C A M
0.05
0.15
-
A2
0.033
0.037
0.85
0.95
-
b
0.0075
0.012
0.19
0.30
9
c
0.0035
0.008
0.09
0.20
-
B S
0.002
D
0.193
0.201
4.90
5.10
3
0.169
0.177
4.30
4.50
4
0.026 BSC
E
0.246
L
0.020
N
α
NOTES:
0.006
E1
e
A2
MILLIMETERS
0.65 BSC
0.256
6.25
0.028
0.50
16
0o
-
0.70
6
16
8o
0o
-
6.50
7
8o
1. These package dimensions are within allowable dimensions of
JEDEC MO-153-AB, Issue E.
Rev. 1 2/02
2. Dimensioning and tolerancing per ANSI Y14.5M-1982.
3. Dimension “D” does not include mold flash, protrusions or gate
burrs. Mold flash, protrusion and gate burrs shall not exceed
0.15mm (0.006 inch) per side.
4. Dimension “E1” does not include interlead flash or protrusions.
Interlead flash and protrusions shall not exceed 0.15mm (0.006
inch) per side.
5. The chamfer on the body is optional. If it is not present, a visual
index feature must be located within the crosshatched area.
6. “L” is the length of terminal for soldering to a substrate.
7. “N” is the number of terminal positions.
8. Terminal numbers are shown for reference only.
9. Dimension “b” does not include dambar protrusion. Allowable
dambar protrusion shall be 0.08mm (0.003 inch) total in excess
of “b” dimension at maximum material condition. Minimum space
between protrusion and adjacent lead is 0.07mm (0.0027 inch).
10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact. (Angles in degrees)
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.
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14
FN6416.0
February 9, 2007