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1
FN6212.1
ISL43L841
Ultra Low ON-Resistance, Low-Voltage,
Single Supply, Differential 4 to 1 Analog
Multiplexer
The Intersil ISL43L841 device contains precision,
bidirectional, analog switches configured as a differential
4-channel multiplexer/demultiplexer. It is designed to operate
from a single +1.65V to +4.5V supply. The device has an
inhibit pin to simultaneously open all signal paths. With a
supply voltage of 4.2V and logic high voltage of 2.85V at the
logic inputs, the part draws only 20A max of ICC current.
ON resistance is 0.47
with a +4.3V supply and 0.65 with
a single +1.8V supply. Each switch can handle rail to rail
analog signals. A channel can handle 300mA of continuous
current. The part has low quiescent power consumption of
0.23W max.
All digital inputs are 1.8V logic-compatible when using a
single +3V supply.
The ISL43L841 is a differential 4 to 1 multiplexer device that is
offered in a 16 Ld 3x3 TQFN package.
Table 1 summarizes the performance of this family.
Features
Pb-Free Plus Anneal (RoHS Compliant)
Pin Compatible Replacement for the MAX4782 and
MAX4618
ON Resistance (RON)
- V+ = +4.3V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.47
- V+ = +3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.52
- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.65
RON Matching Between Channels. . . . . . . . . . . . . . . . 0.12
RON Flatness Across Signal Range . . . . . . . . . . . . . 0.056
Single Supply Operation. . . . . . . . . . . . . . . . +1.65V to +4.5V
Low Power Consumption (PD). . . . . . . . . . . . . . . . . <0.23W
Low ICC Current when VinH is not at the V+ Rail
Fast Switching Action (VS = +3V)
-tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25ns
-tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15ns
Guaranteed Break-Before-Make
High Current Handling Capacity (300mA Continuous)
Available in 16 Ld 3x3 TQFN
1.8V CMOS-Logic Compatible (+3V Supply)
Applications
Battery Powered, Handheld, and Portable Equipment
- Cellular/Mobile Phones
- Pagers
- Laptops, Notebooks, Palmtops
Portable Test and Measurement
Medical Equipment
Audio and Video Switching
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”
TABLE 1. FEATURES AT A GLANCE
CONFIGURATION
Diff 4:1 Mux
4.3V RON
0.47
4.3V tON/tOFF
22ns/12ns
3V RON
0.52
3V tON/tOFF
25ns/15ns
1.8V RON
0.65
1.8V tON/tOFF
40ns/17ns
PACKAGES
16 Ld 3x3 TQFN
Data Sheet
June 30, 2006
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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