DATASHEET ISL43840 FN6056 Rev 2.00 Low-Voltage, Single and Dual Supply, Dual 4 to 1 Multiplexer Analog Switch with Mar 13, 2006 Enable The Intersil ISL43840 device is a precision, bidirectional, Features analog switches configured as a a dual 4 channel multiplexer/ Fully Specified at 3.3V, 5V, 5V, and 12V Supplies for 10% demultiplexer designed to operate from a single +2V to +12V Tolerances supply or from a 2V to 6V supply. The device has two enable bar pins to simultaneously open all signal paths of ON Resistance (R ) Max, V = 4.5V . 50 ON S bank A and B. ON Resistance (R ) Max, V = +3V . 155 ON S ON resistance of 39 with a 5V supply and 125 with a R Matching Between Channels, V = 5V <2 ON S +3.3V supply. Each switch can handle rail to rail analog Low Charge Injection, V = 5V . 1pC (Max) S signals. The off-leakage current is only .01nA at +25C or 2.5nA at +85C. Single Supply Operation . +2V to +12V All digital inputs have 0.8V to 2.4V logic thresholds, ensuring Dual Supply Operation . 2V to 6V TTL/CMOS logic compatibility when using a single 3.3V or Fast Switching Action (V = +5V) S +5V supply or dual 5V supplies. -t 38ns ON The ISL43840 is a dual 4 to 1 multiplexer device. Table 1 -t . 19ns OFF summarizes the performance of this part. Guaranteed Max Off-leakage 2.5nA TABLE 1. FEATURES AT A GLANCE Guaranteed Break-Before-Make CONFIGURATION DUAL 4:1 MUX TTL, CMOS Compatible 5V R 39 ON Pb-Free Plus Anneal Available (RoHS Compliant) 5V t / t 32ns/18ns ON OFF 12V R 32 ON Applications 12V t / t 23ns/15ns ON OFF Communications Systems 5V R 65 -Radios ON - Telecom Infrastructure 5V t / t 38ns/19ns ON OFF - ADSL, VDSL Modems 3.3V R 125 ON Test Equipment 3.3V t / t 70ns/32ns ON OFF - Medical Ultrasound Package 20 Ld 4x4 QFN - Magnetic Resonance Image - CT and PET Scanners (MRI) Related Literature -ATE Technical Brief TB363 Guidelines for Handling and - Electrocardiograph Processing Moisture Sensitive Surface Mount Devices Audio and Video Signal Routing (SMDs) Various Circuits Application Note AN557 Recommended Test Procedures - +3V/+5V DACs and ADCs for Analog Switches - Sample and Hold Circuits Application Note AN520 CMOS Analog Multiplexers and - Operational Amplifier Gain Switching Networks Switches Specifications and Application Considerations. - High Frequency Analog Switching Application Note AN1034 Analog Switch and Multiplexer - High Speed Multiplexing Applications - Integrator Reset Circuits FN6056 Rev 2.00 Page 1 of 14 Mar 13, 2006ISL43840 Pinout ISL43840 (QFN) TOP VIEW 20 19 18 17 16 15 NO2A COMB 1 NO3B 2 14 COMA 13 NO0A NO2B 3 12 NO3A ENABLE A 4 LOGIC LOGIC ENABLE B 5 11 ADD1A 6 78 9 10 Truth Table (Note) Ordering Information ISL43840 PART PART TEMP. PKG. NUMBER MARKING RANGE (C) PACKAGE DWG. ENABLE ADD2 ADD1 SWITCH ON ISL43840IR 43840IR -40 to 85 20 Ld QFN L20.4x4 1X X NONE ISL43840IRZ 43840IRZ -40 to 85 20 Ld QFN L20.4x4 000 NO0 (See Note) (Pb-free) 001 NO1 Add -T suffix for tape and reel. 010 NO2 NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets molding compounds/die attach materials and 100% 011 NO3 matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil NOTE: Applies to either A or B switch. Logic 0 0.8V. Logic 1 Pb-free products are MSL classified at Pb-free peak reflow 2.4V, with V+ between 2.7V and 10V. X = Dont Care. temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. Pin Descriptions PIN FUNCTION V+ Positive Power Supply Input V- Negative Power Supply Input. Connect to GND for Single Supply Configurations. GND Ground Connection ENABLE Digital Control Input. Connect to GND for Normal Operation. Connect to V+ to turn all switches off. COM Analog Switch Common Pin NO Analog Switch Normally Open Pin NC Analog Switch Normally Closed Pin ADD Address Input Pin N.C. No Internal Connection FN6056 Rev 2.00 Page 2 of 14 Mar 13, 2006 -V NO1B GND NO0B ADD2B N.C. +V ADD1B NO1A ADD2A