1
FN6097.3
ISL84782
Ultra Low ON-Resistance, Low-Voltage,
Single Supply, Differential 4 to 1 Analog
Multiplexer
The Intersil ISL84782 device contains precision, bidirectional,
analog switches configured as a differential 4-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 0.5
with a +3V supply and 0.62 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 and 30nA max at +85°C with a +3.3V supply.
All digital inputs are 1.8V logic-compatible when using a
single +3V supply.
The ISL84782 is a differential 4 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.
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 MAX4782 and
MAX4618
ON Resistance (RON)
- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5
- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.62
RON Matching Between Channels. . . . . . . . . . . . . . . . 0.12
RON Flatness Across Signal Range . . . . . . . . . . . . . .0.056
Single Supply Operation. . . . . . . . . . . . . . . . . +1.6V to +3.6V
Low Power Consumption (PD). . . . . . . . . . . . . . . . . . <0.2W
Fast Switching Action (VS = +3V)
-tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16ns
-tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13ns
Guaranteed Break-Before-Make
High Current Handling Capacity (300mA Continuous)
Available in 16 Ld 3x3 Thin QFN and 16 Ld TSSOP
1.8V CMOS-Logic Compatible (+3V Supply)
Pb-Free Available (RoHS Compliant) (see Ordering Info)
ISL84782IR Replaces the ISL43L740IR.
Applications
Battery Powered, Handheld, and Portable Equipment
- Cellular/Mobile Phones
- Pagers
- Laptops, Notebooks, Palmtops
Portable Test and Measurement
Medical Equipment
Audio and Video Switching
TABLE 1. FEATURES AT A GLANCE
ISL84782
Configuration
Diff 4:1 Mux
3V RON
0.5
3V tON/tOFF
16ns/13ns
1.8V RON
0.62
1.8V tON/tOFF
24ns/16ns
Packages
16 Ld TSSOP, 16 Ld 3x3 Thin QFN
Data Sheet
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
November 17, 2004