The Intersil ISL84781 device contains precision, bidirectional,

analog switches configured as an 8-channel

multiplexer/demultiplexer. It is designed to operate from a

single +1.6V to +3.6V supply. The device has an inhibit pin to

simultaneously open all signal paths.

ON-resistance is 0.4Ω with a +3.0V supply and 0.55Ω with a

single +1.8V supply. Each switch can handle rail-to-rail

analog signals. The off-leakage current is only 4nA max at

+25°C or 40nA max at +85°C with a +3.3V supply.

All digital inputs are 1.8V logic-compatible when using a

single +3V supply.

The ISL84781 is a 8-to-1 multiplexer device that is offered in a

16 Ld TSSOP package, and a 16 Ld thin QFN package.

Table 1 summarizes the performance of this family

特性 Features

? Pin Compatible Replacement for the MAX4781, and

MAX4617

? ON-resistance (rON)

- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4Ω

- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.55Ω

? rON Matching Between Channels . . . . . . . . . . . . . . . . 0.12Ω

? rON Flatness Across Signal Range . . . . . . . . . . . . . . .0.056Ω

? Single Supply Operation. . . . . . . . . . . . . . . . . +1.6V to +3.6V

? Low Power Consumption (PD). . . . . . . . . . . . . . . . . . <0.2μW

? Fast Switching Action (VS = +3V)

- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16ns

- tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13ns

? Guaranteed Break-Before-Make

? High Current Handling Capacity (300mA Continuous)

? Available in 16 Ld TSSOP and 16 Ld 3x3 Thin QFN

? 1.8V CMOS-Logic Compatible (+3V Supply)

? Pb-Free (RoHS Compliant)

? ISL84781IR Replaces the ISL43L680IR.

Applications

? Battery Powered, Handheld, and Portable Equipment

- Cellular/Mobile Phones

- Pagers

- Laptops, Notebooks, Palmtops

? Portable Test and Measurement

? Medical Equipment

? Audio Switching and Routing