1
FN6584.1
ISL54066
Negative Signal Swing, High Off-Isolation,
Dual SPST Single Supply Switch
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 down to 6.5V
below the positive supply rail. Targeted applications include
battery powered equipment that benefit from low r
ON
(1
high off-isolation (80dB) and fast switching speeds
(t
ON
= 40ns, t
OFF
= 30ns). The digital logic input is 1.8V
logic-compatible when using a single +3V supply.
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.
The ISL54066 is a dual single-pole/single-throw (SPST)
normally open (NO) switch with independent logic control.
Features
• Pb-free (RoHS Compliant)
• Negative Signal Swing (Max 6.5V Below V+)
• T-switch Architecture
• ON-Resistance (r
ON
)
- V+ = +4.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
- V+ = +4.3V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
- V+ = +2.7V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5
- V+ = +1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
•r
ON
Matching Between Channels . . . . . . . . . . . . . . . . . 10m
•r
ON
Flatness Across Signal Range . . . . . . . . . . . . . . . . . 0.2
• Single Supply Operation . . . . . . . . . . . . . . . . .+1.8V to +6.5V
• Low Power Consumption @ 3V (P
D
). . . . . . . . . . . . 60nW
• Fast Switching Action (V+ = +4.3V)
-t
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40ns
-t
OFF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30ns
• ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .>6kV
• 1.8V Logic Compatible (+3V Supply)
• Low I+ Current when VinH is not at the V+ Rail
• Available in 10 Ld µTQFN and 10 Ld 3x3 TDFN
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
ISL54066
Number of Switches 2
Switch Type SPST NO
4.3V r
ON
1
4.3V t
ON
/t
OFF
40ns/30ns
2.7V r
ON
1.5
2.7V t
ON
/t
OFF
60ns/30ns
1.8V r
ON
3
1.8V t
ON
/t
OFF
180ns/44ns
Packages 10 Ld µTQFN, 10 Ld TDFN
r
ON
()
V
COM
(V)
012 345
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
-1-2-3-4-5-6
I
COM
= 100mA
V+ = 1.8V
V+ = 2.7V
V+ = 4.5V
ON-RESISTANCE vs SUPPLY VOLTAGE vs
SWITCH VOLTAGE
Data Sheet November 3, 2009
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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