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 (<1W), low
leakage currents (5nA max), and fast switching speeds
(tON = 52ns, tOFF = 40ns). A 5 maximum RON 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.

Features
• Fully Specified for 10% Tolerances at VS = 5V and
V+ = 12V, 5V and 3.3V
• Four Separately Controlled SPST Switches
• Pin Compatible with DG411/DG412/DG413
• ON Resistance (RON Max.) . . . . . . . . . . . . . . . . . . . . 25
• RON Matching Between Channels. . . . . . . . . . . . . . . . . . <1
• Low Power Consumption (PD). . . . . . . . . . . . . . . . . . . .<1W
• Low Off Leakage Current (Max at 85°C) . . . . . . . . . 2.5nA
• Fast Switching Action
- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52ns
- tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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