SW4684

SW4684 Ultra-Low Resistance Dual SPDT Analog Switch www.DataSheet4U.com November 2008 SW4684 Ultra-Low Resistance Dual SPDT Analog Switch General Description The SW4684 is an advanced CMOS analog switch that operates from a single +1.8V to +5.5V supply. The device is a dual independent single pole double throw (SPDT) switch featuring ultra-low RON of 0.5Ω for the normally closed (NC) switch, and 0.8Ω for the normally opened switch (NO) at 2.7 V. The switch features break-before-make switching action with tON = 50ns and tOFF = 40ns at +3V. The digital logic inputs are 1.8V logic interface compatible with a +2.7V to +3.3V supply. Key Specifications Single Supply Operation High Isolation Low Standby Current Low Crosstalk 3dB Bandwidth at VCC = 5V 1.8V to 5.5V -66dB at 100kHz <50nA <-66dB at 100kHz 10MHz(typ) Features Ultra Low NC RON, 0.5Ω Max at 2.7V Ultra Low NO RON, 0.8Ω Max at 2.7V Low Distortion, <0.14% THD Full 0-Vcc Signal Handling High Continuous Current Capability Applications Mobile Phones Speaker Switches Power Switches Schematic Diagram 1.2 6 GND NC1 5 1.0 Vcc=1.8V Vcc=2.0V 7 NC2 IN1 4 0.8 Ron(ohm) Vcc=2.5V 0.6 Vcc=3.0V Vcc=4.0V 0.4 Vcc=5.0V 8 IN2 COM1 3 9 COM2 NO1 2 0.2 10 NO2 VCC 1 0.0 0 1 2 3 4 5 VCOM(V) Figure 1 Ultra-Low Resistance dual SPDT Analog Switch Figure 2 On-Resistance vs COM Voltage http://www.analogexpress.com 1 V1.3 SW4684 Ultra-Low Resistance Dual SPDT Analog Switch Pin Assignment www.DataSheet4U.com SW4684D...