The Intersil ISL43240 device is a CMOS, precision, quad SPDT
analog switch 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 (5µW), low leakage currents
(5nA max), and fast switching speeds (tON = 52ns,
tOFF = 40ns). A 5Ω maximum rON flatness ensures signal
fidelity, while channel-to-channel mismatch is guaranteed to
be less than 2Ω.
The ISL43240 is a quad single-pole/double-throw (SPDT)
device and can be used as a quad SPDT, a quad 2:1
multiplexer, a single 4:1 multiplexer or a dual 2-channel
differential multiplexer.

Features
• Fully specified for 10% tolerances at VS = ±5V and V+ = 12V,
5V and 3.3V
• Four separately controlled SPDT switches
• ON-resistance (rON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Ω
• rON matching between channels . . . . . . . . . . . . . . . . . . . . . . . <1Ω
• Low charge injection. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5pC (Max)
• Low power consumption (PD) . . . . . . . . . . . . . . . . . . . . . . . . <5µW
• Low off leakage current (max at +85°C) . . . . . . . . . . . 2.5nA
• Fast switching action
- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52ns
- tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40ns
• Guaranteed break-before-make
• Minimum 2000V ESD protection per Method 3015.7
• TTL, CMOS compatible
• Pb-free (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