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ISL43L120, ISL43L121, ISL43L122
Data Sheet 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 NUMBER OF SWITCHES SW 1/SW 2 1.8V RON 1.8V tON/tOFF 3V RON 3V tON/tOFF PACKAGES 2 NO/NO 0.26Ω 30ns/25ns 0.16Ω 13ns/13ns ISL43L121 2 NC/NC 0.26Ω 30ns/25ns 0.16Ω 13ns/13ns ISL43L122 2 NO/NC 0.26Ω 30ns/25ns 0.16Ω 13ns/13ns
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
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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”.
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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. 2004, 2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
ISL43L120, ISL43L121, ISL43L122 Pinouts
(Note 1) ISL43L122 (MSOP, TDFN) TOP VIEW
V+ 1 8 COM1 7 IN 2 6 COM2 5 GND
ISL43L120 (MSOP, TDFN) TOP VIEW
V+ 1 8 COM1 7 IN2
ISL43L121 (MSOP, TDFN) TOP VIEW
V+ 1 8 COM1 7 IN2
NO1 2 IN1 3 NO2 4
NO1 2 IN1 3 NC2 4
NC1 2 IN1 3 NC2 4
6 COM2 5 GND
6 COM2 5 GND
NOTE: 1. Switches Shown for Logic “0” Input.
Ordering Information
PART NUMBER* ISL43L120IU ISL43L120IR ISL43L121IU ISL43L121IR ISL43L122IU ISL43L122IR PART MARKING L120 L10 L121 L11 L122 L12 TEMP. RANGE (°C) PACKAGE PKG. DWG. # M8.118
Truth Table
ISL43L120 LOGIC 0 1 NOTE: SW 1, 2 OFF ON ISL43L121 SW 1, 2 ON OFF ISL43L122 SW 1 OFF ON SW 2 ON OFF
-40 to 85 8 Ld MSOP
-40 to 85 8 Ld 3x3 TDFN L8.3x3A -40 to 85 8 Ld MSOP M8.118
Logic “0” ≤ 0.5V. Logic “1” ≥ 1.4V with a 3V Supply.
-40 to 85 8 Ld 3x3 TDFN L8.3x3A -40 to 85 8 Ld MSOP M8.118
Pin Descriptions
PIN V+ GND FUNCTION System Power Supply Input (+1.65V to +3.6V) Ground Connection Digital Control Input Analog Switch Common Pin Analog Switch Normally Open Pin Analog Switch Normally Closed Pin
-40 to 85 8 Ld 3x3 TDFN L8.3x3A -40 to 85 8 Ld MSOP (Pb-free) M8.118
ISL43L120IUZ L120Z (Note) ISL43L120IRZ L10Z (Note) ISL43L121IUZ L121Z (Note) ISL43L121IRZ L11Z (Note) ISL43L122IUZ L122Z (Note) ISL43L122IRZ L12Z (Note)
-40 to 85 8 Ld 3x3 TDFN L8.3x3A (Pb-free) -40 to 85 8 Ld MSOP (Pb-free) M8.118
IN COM NO NC
-40 to 85 8 Ld 3x3 TDFN L8.3x3A (Pb-free) -40 to 85 8 Ld MSOP (Pb-free) M8.118
-40 to 85 8 Ld 3x3 TDFN L8.3x3A (Pb-free)
*Add “-T” suffix for tape and reel NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb a.