ISL43121IH-T

DATASHEET ISL43120, ISL43121, ISL43122 Low-Voltage, Single Supply, Dual SPST Analog Switches The Intersil ISL43120, ISL43121 and ISL43122 devices are precision, bidirectional, dual analog SPST switches designed to operate from a single +2.7V to +12V supply. Targeted applications include battery powered equipment that benefit from the devices’ low power consumption (5µW), low leakage currents (100pA max) and fast switching speeds (tON = 28ns, tOFF = 20ns). 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 “mux-in” additional functionality while reducing ASIC design risk. Some of the smallest packages are available, alleviating board space limitations and making Intersil’s newest line of low-voltage switches an ideal solution. The ISL43120, ISL43121, ISL43122 are dual single-pole/single-throw (SPST) devices. The ISL43120 has two normally open (NO) switches; the ISL43121 has two normally closed (NC) switches; the ISL43122 has one NO and one NC switch and can be used as an SPDT. ISL43120 ISL43121 ISL43122 SW 1/SW 2 NO/NO NC/NC NO/NC 3.3V rON 32Ω 32Ω 32Ω 3.3V tON/tOFF 40ns/20ns 40ns/20ns 40ns/20ns 5V rON 19Ω 19Ω 19Ω 5V tON/tOFF 28ns/20ns 28ns/20ns 28ns/20ns 12V rON 11Ω 11Ω 11Ω 12V tON/tOFF 25ns/17ns 25ns/17ns 25ns/17ns 8 Ld SOT-23 Related Literature • TB363 “Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs)” • AN557“Recommended Test Procedures for Analog Switches” • TB401“Using the ISL43120 SPST Switch in a Multi-Phase PWM Power Application” FN6033 Rev 7.00 Aug 17, 2015 Features • Fully specified at 12V, 5V, and 3.3V supplies for 10% tolerances • ON-resistance (rON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Ω • rON matching between channels . . . . . . . . . . . . . . . . . . . . . . .