ISL84521, ISL84522, ISL84523
®
Data Sheet
August 2004
FN6031.3
Low-Voltage, Single and Dual Supply,
Quad SPST, Analog Switches
Features
• Drop-in Replacements for MAX4521 - MAX4523
• Four Separately Controlled SPST Switches
• Pin Compatible with DG411, DG412, DG413
The Intersil ISL84521, ISL84523, ISL84523 devices are
CMOS, precision, quad analog switches designed to operate
from a single +2V to +12V supply or from a ±2V to ±6V supply.
Targeted applications include battery powered equipment that
benefit from the devices’ low power consumption (<1µW), low
leakage currents (1nA max), and fast switching speeds
• ON Resistance (R
Max.) . . . . . . . . . . . . . . . . . . . 100Ω
Matching Between Channels. . . . . . . . . . . . . . . . . .<1Ω
ON
• R
ON
(t
= 45ns, t
= 15ns). A12Ω maximum R flatness
• Low Power Consumption (P ) . . . . . . . . . . . . . . . . . . . .<1µW
ON
OFF
ON
D
ensures signal fidelity, while channel-to-channel mismatch is
guaranteed to be less than 4Ω.
• Low Leakage Current (Max at 85oC) . . . . . . . . . . . . 10nA
• Fast Switching Action
The ISL84521, ISL84522, ISL84523 are quad
single-pole/ single-throw (SPST) devices. The ISL84521 has
four normally closed (NC) switches; the ISL84522 has four
normally open (NO) switches; the ISL84523 has two NO and
two NC switches and can be used as a dual SPDT, or a dual
2:1 multiplexer.
- t
- t
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45ns
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15ns
OFF
• Break before Make Timing
• Minimum 2000V ESD Protection per Method 3015.7
• TTL, CMOS Compatible
Table summarizes the performance of this family. For higher
performance, pin compatible versions and 3mm x 3mm Quad
No-Lead Flatpack (QFN) package see the ISL43140,
ISL43142 data sheet.
• Pb-free available
Applications
• Battery Powered, Handheld, and Portable Equipment
- Cellular/Mobile Phones
TABLE 1. FEATURES AT A GLANCE
ISL84521
4
ISL84522
4
ISL84523
4
- Pagers
Number of Switches
Configuration
- Laptops, Notebooks, Palmtops
All NC
65Ω
All NO
65Ω
2 NC/2 NO
65Ω
• Communications Systems
- Military Radios
±5V R
ON
- RF “Tee” Switches
±5V t /t
ON OFF
45ns/15ns
125Ω
45ns/15ns
125Ω
45ns/15ns
125Ω
• Test Equipment
- Ultrasound
5V R
ON
5V t /t
60ns/20ns
260Ω
60ns/20ns
260Ω
60ns/20ns
260Ω
ON OFF
3V R
- Electrocardiograph
ON
• Heads-Up Displays
3V t /t
120ns/40ns 120ns/40ns 120ns/40ns
16 Ld SOIC (N), 16 Ld TSSOP
ON OFF
• Audio and Video Switching
Packages
• General Purpose Circuits
- +3V/+5V DACs and ADCs
- Digital Filters
- Operational Amplifier Gain Switching Networks
- High Frequency Analog Switching
- High Speed Multiplexing
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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