Document
®
Data Sheet
ISL43L120, ISL43L121, ISL43L122
June 23, 2006
FN6091.2
Ultra Low ON-Resistance, Single Supply, Dual SPST Analog Switches
The Intersil ISL43L120, ISL43L121, ISL43L122 devices are low ON-resistance, low voltage, bidirectional, precision, dual single-pole/single-throw (SPST) analog switches designed to operate from a single +1.65V to +3.6V supply. Targeted applications include battery powered equipment that benefit from low RON (0.16Ω), low power consumption (0.12µW) and fast switching speeds (tON = 13ns, tOFF = 13ns).
Cell phones, for example, often face ASIC functionality limitations. The number of analog input or GPIO pins may be limited and digital geometries are not well suited to analog switch performance. This family of parts may be used to switch in additional functionality while reducing ASIC design risk. The ISL43L12X are offered in an 8 Ld MSOP package, alleviating board space limitations.
The ISL43L120, ISL43L121, ISL43L122 are dual singlepole/single-throw (SPST) devices. The ISL43L120 has two normally open (NO) switches; the ISL43L121 has two normally closed (NC) switches; the ISL43L122 has one normally open (NO) and one normally closed (NC) switch and can be used as an SPDT.
Table 1 summarizes the performance of this family.
TABLE 1. FEATURES AT A GLANCE ISL43L120 ISL43L121 ISL43L122
NUMBER OF SWITCHES
SW 1/SW 2
1.8V RON 1.8V tON/tOFF
3V RON 3V tON/tOFF PACKAGES
222
NO/NO
NC/NC
NO/NC
0.26Ω
0.26Ω
0.26Ω
30ns/25ns 30ns/25ns 30ns/25ns
0.16Ω
0.16Ω
0.16Ω
13ns/13ns 13ns/13ns 13ns/13ns
8Ld 3x3 TDFN, 8Ld MSOP
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
• Low ON Resistance (RON) - V+ = 3.0V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.16Ω - V+ = 1.8V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.26Ω
• RON Matching Between Channels . . . . . . . . . . . . 0.005Ω • RON Flatness Over Signal Range . . . . . . . . . . . . . . 0.008Ω • Single Supply Operation. . . . . . . . . . . . . . . . +1.65V to +3.6V
• Low Power Consumption (PD) . . . . . . . . . . . . . . . . . <0.12µW • Fast Switching Action (V+ = 3.0V)
- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13ns - tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13ns • ESD HBM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >8kV
• 1.8V Logic Compatible (+3V Supply)
• Available in 8-Ld thin DFN and 8-Ld MSOP Packages
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Battery Powered, Handheld, and Portable Equipment - Cellular/Mobile Phones - Pagers - Laptops, Notebooks, Palmtops
• Portable Test and Measurement • Medical Equipment • Audio and Video Switching
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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