The Intersil ISL43140–ISL43142 devices are CMOS,
precision, quad 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 (1nA max), and fast switching speeds
(tON = 30ns, tOFF = 18ns). A 12 maximum RON flatness
ensures signal fidelity, while channel-to-channel mismatch is
guaranteed to be less than 2.5. The 3mm x 3mm Quad NoLead Flatpack (QFN) package alleviates board space
limitations, making this newest line of low-voltage switches an
ideal solution.
The ISL43140/ISL43141/ISL43142 are quad single-pole/
single-throw (SPST) devices. The ISL43140 has four normally
closed (NC) switches; the ISL43141 has four normally open
(NO) switches; the ISL43142 has two NO and two NC
switches and can be used as a dual SPDT, or a dual 2:1
multiplexer.

Features
• Fully Specified at 5V, 12V, 5V, and 3V Supplies for 10%
Tolerances
• Four Separately Controlled SPST Switches
• Pin Compatible with DG411/DG412/DG413
• ON Resistance (RON) . . . . . . . . . . . . . . . . . . . . . . . . 50
• RON Matching Between Channels. . . . . . . . . . . . . . . . . . . 2
• Low Charge Injection . . . . . . . . . . . . . . . . . . . . . . 5pC (Max)
• Low Power Consumption (PD). . . . . . . . . . . . . . . . . . . .<1W
• Low Leakage Current (Max at 85°C) . . . . . . . . . . . . . 5nA
• Fast Switching Action
- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30ns
- tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18ns
• Guaranteed Break-Before-Make (ISL43142 only)
• Minimum 2000V ESD Protection per Method 3015.7
• TTL, CMOS Compatible
• Pb-free Available

Applications
• Battery Powered, Handheld, and Portable Equipment
- Cellular/Mobile Phones
- Pagers
- Laptops, Notebooks, Palmtops
• Communications Systems
- Military Radios
- RF “Tee” Switches
• Test Equipment
- Ultrasound
- Electrocardiograph
• Heads-Up Displays
• 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