ISL84581
Low-Voltage, Single and Dual Supply, 8 Multiplexer to 1 Multiplexer

Key Features

• Fully Specified at 3.3V, 5V, ±5V, and 12V Supplies for 10% Tolerances
• ON-Resistance (r_ON) Max, V_S = ±4.5V 50Ω
• ON-Resistance (r_ON) Max, V_S = +3V 155Ω
• r_ON Matching Between Channels, V_S = ±5V <2Ω
• Low Charge Injection, V_S = ±5V 1pC (Max)
• Single Supply Operation +2V to +12V
• Dual Supply Operation ±2V to ±6V
• Fast Switching Action (V_S = +5V)
• t_ON 38ns
• t_OFF 19ns
• Guaranteed Max Off-leakage 2.5nA
• Guaranteed Break-Before-Make
• TTL, CMOS Compatible
• Pb-Free (RoHS Compliant)

Description

The Intersil ISL84581 device contains precision, bidirectional, analog switches configured as an 8-to-1 multiplexer/demultiplexer. It was designed to operate from a single +2V to +12V single supply or from dual ±2V to ±6V supplies. The device has an inhibit pin to simultaneously open all signal paths.

The ISL84581 has an ON-resistance of 39Ω with a dual ±5V supply and 125Ω with a single +3.3V supply. Each switch can handle rail-to-rail analog signals. The off-leakage current is only 0.02nA at +25°C or 0.2nA at +85°C.

All digital inputs have 0.8V to 2.4V logic thresholds, ensuring TTL/CMOS logic compatibility when using a single 3.3V or +5V supply or dual ±5V supplies.

The ISL84581 is a single 8-to-1 multiplexer device.

Applications

• Battery Powered, Handheld, and Portable Equipment
• Communications Systems
• Radios
• Telecom Infrastructure
• ADSL, VDSL Modems
• Test Equipment
• Medical Ultrasound
• Magnetic Resonance Image
• CT and PET Scanners (MRI)
• ATE
• Electrocardiograph
• Audio and Video Signal Routing
• 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