DATASHEET ISL8484 FN6128 Rev 5.00 Ultra Low ON-Resistance, +1.65V to +4.5V, Single Supply, Dual SPDT Analog May 12, 2008 Switch The Intersil ISL8484 device is a low ON-resistance, low Features voltage, bidirectional, dual single-pole/double-throw (SPDT) Pin Compatible Replacement for the MAX4684 and analog switch designed to operate from a single +1.65V to MAX4685 +4.5V supply. Targeted applications include battery powered equipment that benefit from low r (0.29 and fast ON-Resistance (r ) ON ON switching speeds (t = 40ns, t = 20ns). The digital logic - V+ = +4.3V 0.29 ON OFF input is 1.8V logic-compatible when using a single +3V supply. - V+ = +3.0V 0.33 - V+ = +1.8V 0.55 With a supply voltage of 4.2V and logic high voltage of 2.85V at both logic inputs, the part draws only 12A max of I+ r Matching Between Channels .0.06 ON current. r Flatness Across Signal Range 0.03 ON Cell phones, for example, often face ASIC functionality Single Supply Operation +1.65V to +4.5V limitations. The number of analog input or GPIO pins may be Low Power Consumption (P ) .<0.45W limited and digital geometries are not well suited to analog D switch performance. This part may be used to mux-in Fast Switching Action (V+ = +4.3V) additional functionality while reducing ASIC design risk. The -t . 40ns ON ISL8484 is offered in small form factor packages, alleviating -t 20ns OFF board space limitations. ESD HBM Rating >8kV The ISL8484 is a committed dual single-pole/double-throw Guaranteed Break-Before-Make (SPDT) that consist of two normally open (NO) and two normally closed (NC) switches. This configuration can be 1.8V Logic Compatible (+3V supply) used as a dual 2-to-1 multi-plexer. The ISL8484 is pin Low I+ Current when V H is not at the V+ Rail IN compatible with the MAX4684 and MAX4685. Available in 10 Ld 3x3 TDFN and 10 Ld MSOP TABLE 1. FEATURES AT A GLANCE Pb-Free Available (RoHS Compliant) ISL8484 NUMBER OF SWITCHES 2 Applications SW SPDT or 2-1 MUX Battery-powered, Handheld, and Portable Equipment 4.3V r 0.29 ON - Cellular/mobile Phones - Pagers 4.3V t /t 40ns/20ns ON OFF - Laptops, Notebooks, Palmtops 3V r 0.33 ON Portable Test and Measurement 3V t /t 50ns/27ns ON OFF Medical Equipment 1.8V r 0.55 ON Audio and Video Switching 1.8V t /t 70ns/54ns ON OFF Packages 10 Ld 3x3 Thin DFN, 10 Ld 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 FN6128 Rev 5.00 Page 1 of 13 May 12, 2008ISL8484 Truth Table Pinout (Note 1) ISL8484 LOGIC NC1 and NC2 NO1 and NO2 (10 LD TDFN, MSOP) 0ON OFF TOP VIEW 1OFF ON V+ 1 10 NO2 NOTE: Logic 0 0.5V. Logic 1 1.4V with a 3V supply. 9 NO1 2 COM2 8 COM1 3 IN2 Pin Descriptions IN1 4 7 NC2 PIN FUNCTION NC1 5 6 GND V+ System Power Supply Input (+1.65V to +4.5V) GND Ground Connection NOTE: INx Digital Control Input 1. Switches Shown for Logic 0 Input. COMx Analog Switch Common Pin NOx Analog Switch Normally Open Pin NCx Analog Switch Normally Closed Pin Ordering Information TEMP. RANGE PKG. PART NUMBER PART MARKING (C) PACKAGE DWG. ISL8484IR* 484 -40 to +85 10 Ld 3x3 TDFN L10.3x3A ISL8484IU* 8484 -40 to +85 10 Ld MSOP M10.118 ISL8484IRZ* 484Z -40 to +85 10 Ld 3x3 TDFN L10.3x3A (Note) (Pb-free) ISL8484IUZ* 8484Z -40 to +85 10 Ld MSOP M10.118 (Note) (Pb-free) *Add -T suffix for tape and reel. Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets molding compounds/die attach materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. FN6128 Rev 5.00 Page 2 of 13 May 12, 2008