ISL54066
®
Data Sheet
February 25, 2009
FN6584.0
+1.8V to +6.5V, High Off-Isolation, Dual
SPST Analog Switch with Negative Signal
Capability
Features
• Pb-free (RoHS Compliant)
• Negative Signal Capability
• T-switch Architecture
The Intersil ISL54066 device is a low ON-resistance, high
off-isolation, low voltage, dual single-pole/single-throw (SPST)
analog switch. It was designed to operate from a single +1.8V
to +6.5V supply and can pass signals that swing 6.5V below
the positive supply rail. Targeted applications include battery
• ON-Resistance (r
)
ON
- V+ = +4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Ω
- V+ = +4.3V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1Ω
- V+ = +2.7V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5Ω
- V+ = +1.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Ω
powered equipment that benefit from low r
off-isolation (80dB) and fast switching speeds (t
(1Ω), high
= 40ns,
= 30ns). The digital logic input is 1.8V logic-compatible
ON
ON
t
OFF
when using a single +3V supply.
• r
Matching Between Channels . . . . . . . . . . . . . . . . . 10mΩ
Flatness Across Signal Range . . . . . . . . . . . . . . . . . 0.2Ω
ON
ON
• r
The ISL54066 incorporates a T-switch architecture. This
approach results in excellent signal off-isolation while
retaining a low impedance signal path when switches are ON.
The ISL54066 is offered in small form factor packages,
alleviating board space limitations. The ISL54066 is available
in 10Ld µTQFN and TDFN packages.
• Single Supply Operation . . . . . . . . . . . . . . . . .+1.8V to +6.5V
• Low Power Consumption (P ). . . . . . . . . . . . . . . . . . 30nA
D
• Fast Switching Action (V+ = +4.3V)
- t
- t
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40ns
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30ns
OFF
The ISL54066 is a dual single-pole/single-throw (SPST)
normally open (NO) switch with independent logic control.
• ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>6kV
• 1.8V Logic Compatible (+3V Supply)
TABLE 1. FEATURES AT A GLANCE
ISL54066
• Low I+ Current when VinH is not at the V+ Rail
• Available in 10 Ld µTQFN and 10 Ld 3x3 TDFN
Number of Switches
Switch Type
2
SPST NO
Applications
4.3V r
1Ω
40ns/30ns
ON
• Battery powered, Handheld, and Portable Equipment
- Cellular/mobile Phones
4.3V t /t
ON OFF
2.7V r
1.5Ω
ON
- Pagers
2.7V t /t
60ns/30ns
ON OFF
- Laptops, Notebooks, Palmtops
1.8V r
3Ω
ON
1.8V t /t
• Portable Test and Measurement
• Medical Equipment
180ns/44ns
10 Ld µTQFN, 10 Ld TDFN
ON OFF
• Audio and Video Switching
Packages
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”
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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