ISL84543
Low-Voltage, Single Supply, Dual SPST, SPDT Analog Switches

Key Features

• Pb-free Available as an Option
• Drop-in Replacements for MAX4541 - MAX4544, DG9461, DG9262 - DG9263
• Fully Specified at 3.3V and 5V Supplies
• Pin Compatible with MAX323 - MAX325
• ON Resistance (RON) 30Ω
• RON Matching Between Channels <1Ω
• Low Charge Injection 5pC (Max)
• Single Supply Operation +2.7V to +12V
• Low Power Consumption (PD) <5µW
• Low Leakage Current (Max at 85oC) 10nA
• Fast Switching Action
• tON 35ns
• tOFF 25ns
• Guaranteed Break-Before-Make (ISL84543/ISL84544 only)
• Minimum 2000V ESD Protection per Method 3015.7
• TTL, CMOS Compatible
• Available in SOT-23 Packaging

Description

The Intersil ISL84541-ISL84544 devices are precision, dual analog switches designed to operate from a single +2.7V to +12V supply. Targeted applications include battery powered equipment that benefit from the devices' low power consumption (5µW), low leakage currents (100pA max), and fast switching speeds (tON = 35ns, tOFF = 25ns). Cell phones, for example, often face ASIC functionality limitations. The number of analog input or GPIO pins may be limited and digital geometries are not well suited to analog switch performance. This family of parts may be used to "mux-in" additional functionality while reducing ASIC design risk. Some of the smallest packages are available alleviating board space limitations, and making Intersil's newest line of low-voltage switches an ideal solution.

The ISL84541/ISL84542/ISL84543 are dual singlepole/ single-throw (SPST) devices. The ISL84541 has two normally open (NO) switches; the ISL84542 has two normally closed (NC) switches; the ISL84543 has one NO and one NC switch and can be used as an SPDT. The ISL84544 is a committed SPDT, which is perfect for use in 2-to-1 multiplexer applications.

Applications

• Battery Powered, Handheld, and Portable Equipment
• Cellular/Mobile Phones
• Pagers
• Laptops, Notebooks, Palmtops
• Communications Systems
• Military Radios
• PBX, PABX
• Test Equipment
• Ultrasound
• Electrocardiograph
• Heads-Up Displays
• Audio and Video Switching
• Various Circuits
• +3V/+5V DACs and ADCs
• Sample and Hold Circuits
• Digital Filters
• Operational Amplifier Gain Switching Networks
• High Frequency Analog Switching
• High Speed Multiplexing
• Integrator Reset Circuits