The Intersil ISL43640 is a precision, bidirectional, analog
switch configured as a 4 channel multiplexer/demultiplexer.
The ISL43640 is designed to operate from a single +2V to
+12V supply. It is equipped with an inhibit pin to
simultaneously open all signal paths.
ON resistance is 115Ω with a +5V supply, 45Ω with a +12V
supply, and 190Ω with a +3V supply. Each switch can handle
rail to rail analog signals. The off-leakage current is only 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 +5V supply. Some of the smallest
packages are available, alleviating board space limitations,
and making Intersil’s newest line of low-voltage switches an
ideal solution.

Features
• Fully Specified at 3V, 5V, and 12V Supplies for 10%
Tolerances
• ON Resistance (RON), VS = 5V . . . . . . . . . . . . . . . . 100Ω
• RON Matching Between Channels. . . . . . . . . . . . . . . . . . <2Ω
• Low Charge Injection . . . . . . . . . . . . . . . . . . . . . . 3pC (Max)
• Single Supply Operation. . . . . . . . . . . . . . . . . . . +2V to +12V
• Low Power Consumption (PD). . . . . . . . . . . . . . . . . . . .<3µW
• Low Off Leakage Current . . . . . . . . . . . . . . . . . . . . . 2.5nA
• Fast Switching Action (VS = 5V)
- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60ns
- tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30ns
• Guaranteed Break-Before-Make
• TTL, CMOS Compatible
• Available in 10 Ld MSOP and 16 Ld QFN Packages
• 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
- Electrocardiograph
- Magnetic Resonance Image
- CT and PET Scanners (MRI)
- ATE
• Audio and Video Switching
• 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