1
FN6037.4
ISL43143, ISL43144, ISL43145
Low-Voltage, Single and Dual Supply,
Quad SPST, High Performance Analog
Switches
The Intersil ISL43143–ISL43145 devices are CMOS,
precision, quad SPST analog switches designed to operate
from a single +2V to +12V supply or from a
2V to 6V supply.
Targeted applications include battery powered equipment that
benefit from the devices’ low power consumption (<1W), low
leakage currents (5nA max), and fast switching speeds
(t
ON
= 52ns, t
OFF
= 40ns). A 5 maximum R
ON
flatness
ensures signal fidelity, while channel-to-channel mismatch is
guaranteed to be less than 2.
The ISL43143/ISL43144/ISL43145 are quad single-pole/
single-throw (SPST) devices. The ISL43143 has four normally
closed (NC) switches; the ISL43144 has four normally open
(NO) switches; the ISL43145 has two NO and two NC
switches and can be used as a dual SPDT, or a dual 2:1
multiplexer.
Table 1 summarizes the performance of this family.
Features
• Fully Specified for 10% Tolerances at V
S
= 5V and
V+ = 12V, 5V and 3.3V
• Four Separately Controlled SPST Switches
• Pin Compatible with DG411/DG412/DG413
• ON Resistance (R
ON
Max.) . . . . . . . . . . . . . . . . . . . . 25
•R
ON
Matching Between Channels. . . . . . . . . . . . . . . . . . <1
• Low Power Consumption (P
D
) . . . . . . . . . . . . . . . . . . . .<1W
• Low Off Leakage Current (Max at 85°C) . . . . . . . . . 2.5nA
• Fast Switching Action
-t
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52ns
-t
OFF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40ns
• Minimum 2000V ESD Protection per Method 3015.7
• TTL, CMOS Compatible
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Battery Powered, Handheld, and Portable Equipment
- Barcode Scanners
- Laptops, Notebooks, Palmtops
• Communications Systems
-Radios
- XDSL and PBX / PABX
- RF “Tee” Switches
- Base Stations
• Test Equipment
- Medical Ultrasound
- Electrocardiograph
-ATE
• Audio and Video Switching
• General Purpose Circuits
- +3V/+5V DACs and ADCs
- Digital Filters
- Operational Amplifier Gain Switching Networks
- High Frequency Analog Switching
- High Speed Multiplexing
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• AN557 “Recommended Test Procedures for Analog
Switches”
TABLE 1. FEATURES AT A GLANCE
ISL43143 ISL43144 ISL43145
Number of Switches 4 4 4
Configuration All NC All NO 2 NC/2 NO
4.5V R
ON
18 18 18
4.5V t
ON
/t
OFF
52ns/40ns 52ns/40ns 52ns/40ns
10.8V R
ON
14 14 14
10.8V t
ON
/t
OFF
40ns/27ns 40ns/27ns 40ns/27ns
4.5V R
ON
30 30 30
4.5V t
ON
/t
OFF
64ns/29ns 64ns/29ns 64ns/29ns
3V R
ON
51 51 51
3V t
ON
/t
OFF
120ns/50ns 120ns/50ns 120ns/50ns
Packages 16 Ld TSSOP, 16Ld QFN 4x4
Data Sheet August 31, 2015
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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