MAX14979E 19-5252 Rev 1 6/11 High-Bandwidth, 15kV ESD Protection LVDS Switch General Description Features The MAX14979E is optimized for high-speed differential S 15kV ESD Protected per MIL-STD-883, Method switching applications. The device is ideal for low-volt- 3015 age differential signal (LVDS) and low-voltage positive S Single +3.0V to +3.6V Power-Supply Voltage emitter-coupled logic (LVPECL) switching applications. S Low On-Resistance (R ): 4I (typ), 6.5I (max) ON The MAX14979E provides enhanced electrostatic dis- charge (ESD) protection up to Q15kV and excellent high- S Low On-Capacitance (C ): 8pF (typ) ON frequency response, making this device especially use- S -23dB Return Loss (100MHz) ful for interfaces that must go to an outside connection. S -3dB Bandwidth: 650MHz The MAX14979E provides extremely low capacitance S Built-In AUX Switches for Switching Indicators (C ) as well as low resistance (R ) for low-insertion ON ON S Low 450A (max) Quiescent Current loss and bandwidth up to 650MHz (1.3Gbps). In addi- tion to the four pairs of double-pole/double-throw (DPDT) S Bidirectional 8 to 16 Multiplexer/Demultiplexer switches, the MAX14979E provides low-frequency (up S Space-Saving, Lead-Free, 36-Pin, 6mm x 6mm to 50MHz) and AUX switching that can be used for LED TQFN Package lighting or other applications. The MAX14979E is available in a space-saving 36-pin Eye Diagram TQFN package and operates over the standard -40NC to +85NC temperature range. Applications Notebook Computers Switch LVDS to Graphics Panels LVDS and LVPECL Switching 100mV/div Ordering Information PART TEMP RANGE PIN-PACKAGE MAX14979EETX+ -40NC to +85NC 36 TQFN-EP* f = 300MHz +Denotes a lead(Pb)-free/RoHS-compliant package. 500ps/div *EP = Exposed pad. Typical Operating Circuit appears at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.High-Bandwidth, 15kV ESD Protection LVDS Switch ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND.) Continuous Power Dissipation (T = +70NC) A V+ .........................................................................-0.3V to +4.0V 36-Pin TQFN (derate 35.7mW/NC above +70NC) .......2.85mW All Other Pins ...............................................-0.3V to (V+ + 0.3V) Operating Temperature Range ........................ -40NC to +85NC Continuous Current (COM to NC /NO ) ............Q120mA Junction Temperature .................................................. +150NC Continuous Current (AUX0 to AUX1 /AUX2 ) ...............Q40mA Storage Temperature Range ......................... -65NC to +150NC Peak Current (COM to NC /NO ) Lead Temperature (soldering 10s) ................................+300NC (pulsed at 1ms, 10% duty cycle) ...............................Q240mA Soldering Temperature (reflow) ......................................+260NC Current into Any Other Pin ..............................................Q20mA Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. PACKAGE THERMAL CHARACTERISTICS (Note 1) TQFN Junction-to-Ambient Thermal Resistance (B ) ............8NC/W JA Junction-to-Case Thermal Resistance (B ) .................1NC/W JC Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four- layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. ELECTRICAL CHARACTERISTICS (V+ = +3.0V to +3.6V, T = T = T to T , unless otherwise noted. Typical values are at V+ = +3.3V, T = +25NC.) (Note 2) A J MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLIES Operating Power-Supply Range V+ +3.0 +3.6 V ANALOG SWITCH T = +25NC 4 5.5 V+ = 3V, I = -40mA, A COM On-Resistance R I ON V = 0V, 1.5V, 3V COM T to T 6.5 MIN MAX V+ = 3V, I = -40mA, V = 0V, AUX0 AUX0 On-Resistance AUX Switches R 40 ONAUX I 1.5V, 3V T = +25NC 0.5 1.5 On-Resistance Match V+ = 3V, I = -40mA, A COM DR I ON Between Channels V = 0V, 3V (Note 3) COM T to T 2 MIN MAX V+ = 3V, I = -40mA, COM On-Resistance Flatness R 0.01 I FLAT(ON) V = 0V, 1.5V COM I V+ = 3.6V, V = 0.3V, 3.3V LCOM COM Off-Leakage Current -1 +1 FA V or V = 3.3V, 0.3V (OFF) NC NO I V+ = 3.6V, V = 0.3V, 3.3V V LCOM COM NC On-Leakage Current -1 +1 FA or V = 3.3V, 0.3V or unconnected (ON) NO SWITCH AC PERFORMANCE R = R = 50I, unbalanced, f = 1MHz, S L Insertion Loss I 0.6 dB LOS (Note 3) Return Loss R f = 100MHz -23 dB LOS Any switch to any switch V f = 25MHz -50 CT1 Crosstalk R = R = 50I, dB S L V f = 125MHz -26 CT2 unbalanced, Figure 1 SWITCH AC CHARACTERISTICS -3dB Bandwidth BW R = R = 50I, unbalanced 650 MHz S L Off-Capacitance C f = 1MHz, COM 3.5 pF OFF On-Capacitance C f = 1MHz, COM 8 pF ON 2 MAX14979E