ISL43231
®
Data Sheet
February 27, 2006
Low-Voltage, Single and Dual Supply,
Triple SPDT Analog Switch
Features
The Intersil ISL43231 device is a precision, bidirectional,
analog switch configured as a a triple single pole/double throw
(SPDT) switch, designed to operate from a single +2V to
+12V supply or from a ±2V to ±6V supply. The device has an
inhibit and inhibit bar pin to simultaneously open all signal
paths. The device also has a latch bar pin to lock in the last
switch address.
ON resistance of 39Ω with a ±5V supply and 125Ω with a
+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 ISL43231 is a committed triple SPDT, which is perfect for
use in 2-to-1 multiplexer applications. Table 1 summarizes the
performance of this part.
TABLE 1. FEATURES AT A GLANCE
CONFIGURATION
TRIPLE SPDT
±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
20 Ld 4x4 QFN
FN6054.2
• 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. . . . . . . . . 2.5kV
Thermal Resistance (Typical, Note 2)
θJA (°C/W)
20 Ld 4x4 QFN Package . . . . . . . . . . . . . . . . . . . . .
45
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
ISL43231IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -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:
1. Signals on NC, NO, COM, ADD, EN, EN, or LE exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to maximum
current ratings.
2. θJA is measured with the component mounted on a high effective thermal conductivity test board with direct die attach features. See Tech Brief
TB379 for details.
Electrical Specifications ±5V SupplyTest Conditions: VSUPPLY = ±4.5V to ±5.5V, GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 3),
Unless Otherwise Specified
TEMP
(°C)
(NOTE 4)
MIN
TYP
Full
V-
-
V+
V
25
-
44
50
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, VINH, VADDH
Full
2.4
-
-
V
Input Voltage Low, VINL, VADDL
Full
-
-
0.8
V
PARAMETER
TEST CONDITIONS
(NOTE 4)
MAX
UNITS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, VANALOG
VS = ±4.5V, ICOM = 2mA, VNO or VNC = 3V
(See Figure 6)
ON Resistance, RON
RON Matching Between Channels,
∆RON
VS = ±4.5V, ICOM = 2mA, VNO or VNC = 3V (Note 5)
RON Flatness, RFLAT(ON)
VS = ±4.5V, ICOM = 2mA, VNO or VNC = ±3V, 0V
(Note 6)
NO or NC OFF Leakage Current,
INO(OFF) or INC(OFF)
VS = ±5.5V, VCOM = ±4.5V, VNO or VNC = +4.5V
(Note 7)
COM OFF Leakage Current,
ICOM(OFF)
VS = ±5.5V, VCOM = ±4.5V, VNO or VNC = +4.5V
(Note 7)
COM ON Leakage Current,
ICOM(ON)
VS = ±5.5V, VCOM = VNO or VNC = ±4.5V (Note 7)
DIGITAL INPUT CHARACTERISTICS
Input Current, IADDH, IADDL, IENH,
IENL
VS = ±5.5V, VINH, VADD = 0V or V+
Full
-0.5
-
0.5
µA
Input Current, IENH, ILEH
VS = ±5.5V, VINH, VADD = 0V or V+
Full
-1.5
-
1.5
µA
Input Current, IENL, ILEL
VS = ±5.5V, VINH, VADD = 0V or V+
Full
-4
-
4
µA
3
FN6054.2
February 27, 2006
ISL43231
Electrical Specifications ±5V SupplyTest Conditions: VSUPPLY = ±4.5V to ±5.5V, GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 3),
Unless Otherwise Specified (Continued)
PARAMETER
TEST CONDITIONS
TEMP
(°C)
(NOTE 4)
MIN
TYP
(NOTE 4)
MAX
UNITS
25
-
35
50
ns
Full
-
-
60
ns
25
-
22
35
ns
Full
-
-
40
ns
25
-
43
60
ns
Full
-
-
70
ns
DYNAMIC CHARACTERISTICS
VS = ±4.5V, VNO or VNC = ±3V, RL =300Ω, CL = 35pF,
VIN = 0 to 3 (See Figure 1)
Enable Turn-ON Time, tON
VS = ±4.5V, VNO or VNC = ±3V, RL =300Ω, CL = 35pF,
VIN = 0 to 3 (See Figure 1)
Enable Turn-OFF Time, tOFF
Address Transition Time, tTRANS
VS = ±4.5V, VNO or VNC = ±3V, RL =300Ω, CL = 35pF,
VIN = 0 to 3 (See Figure 1)
Break-Before-Make Time, tBBM
VS = ±5.5V, VNO or VNC = 3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V (See Figure 3)
Full
2
7
-
ns
Latch Setup Time, tS
(See Figure 4)
25
25
-
-
ns
Full
35
-
-
ns
25
0
-
-
ns
Full
0
-
-
ns
25
15
-
-
ns
Full
25
-
-
ns
Latch Hold Time, tH
(See Figure 4)
Latch Pulse Width, tWPW
(See Figure 4)
Charge Injection, Q
CL = 1.0nF, VG = 0V, RG = 0Ω (See Figure 2)
25
-
0.3
1
pC
NO/NC OFF Capacitance, COFF
f = 1MHz, VNO or VNC = VCOM = 0V (See Figure 8)
25
-
3
-
pF
COM OFF Capacitance, COFF
f = 1MHz, VNO or VNC = VCOM = 0V (See Figure 8)
25
-
9
-
pF
COM ON Capacitance, CCOM(ON)
f = 1MHz, VNO or VNC = VCOM = 0V (See Figure 8)
25
-
14
-
pF
OFF Isolation
RL = 50Ω, CL = 15pF, f = 100kHz,
VNOx or VNCx = 1VRMS (See Figures 5, 7 and 20)
25
-
92
-
dB
25
-