ISL84781 Datasheet, PDF (1/12 Pages) Intersil Corporation – Ultra Low ON-Resistance, Low-Voltage, Single Supply, 8 to 1 Analog Multiplexer

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Data Sheet
November 17, 2004
ISL84781
FN6095.2
Ultra Low ON-Resistance, Low-Voltage,
Single Supply, 8 to 1 Analog Multiplexer
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.
TABLE 1. FEATURES AT A GLANCE
ISL84781
Configuration
8:1 Mux
3V R_ON
3V t_ON/t_OFF
1.8V R_ON
1.8V t_ON/t_OFF
Packages
0.4Ω
16ns/13ns
0.55Ω
24ns/16ns
16 Ld TSSOP, 16 Ld 3x3 thin QFN
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
Features
• Pin Compatible Replacement for the MAX4781, and
MAX4617
• ON Resistance (R_ON)
- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.4Ω
- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.55Ω
• R_ON Matching Between Channels. . . . . . . . . . . . . . . . 0.12Ω
• R_ON Flatness Across Signal Range . . . . . . . . . . . . . .0.056Ω
• Single Supply Operation. . . . . . . . . . . . . . . . . +1.6V to +3.6V
• Low Power Consumption (PD). . . . . . . . . . . . . . . . . . <0.2µW
• Fast Switching Action (V_S = +3V)
- t_ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16ns
- t_OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 Available as an Option (RoHS Compliant)
(see Ordering Info)
• 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
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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