MAX4991MAX4994 19-4150 Rev 1 6/09 Low R , Dual-SPDT/Single-DPDT Analog ON Switches with Slow Turn-On Time General Description Features The MAX4991MAX4994 low on-resistance analog Slow Turn-On for Click-and-Pop Reduction Without switches operate from a single +1.8V to +5.5V supply. Additional Parts The MAX4991/MAX4993 feature a slow turn-on time to Low 0.3 On-Resistance reduce clicks and pops due to coupling capacitors and Low R Flatness (1m) ON audio amplifiers with a DC output bias. This feature pro- vides click-and-pop reduction without adding additional Low THD+N: 0.004% parts for existing architectures. +1.8V to +5.5V Single-Supply Operation The MAX4991/MAX4992 are dual single-pole/double- 1.2A (typ) Supply Current throw (SPDT) switches, while the MAX4993/MAX4994 Space-Saving Packages are double-pole/double-throw (DPDT) switches. The 10-Pin UTQFN (1.4mm x 1.8mm x 0.55mm) MAX4993/MAX4994 feature an active-low enable input (EN) that sets all the channels to high impedance and reduces supply current when driven high. These devices have 0.3 on-resistance and 0.004% THD+N Pin Configurations to route high fidelity audio signals. The MAX4991MAX4994 are available in space-saving TOP VIEW 10-pin UTQFN (1.4mm x 1.8mm) package, and are specified for operation over the -40C to +85C extend- 7 6 CB2 8 5 NC1 ed temperature range. MAX4991/ 9 4 COM2 CB1 MAX4992 NO2 10 3 COM1 Applications 1 2 Speaker Headset Source Switching Cellular Phones UTQFN Portable MP3 Players Audio Signal Routing 7 6 EN 8 5 NC1 MAX4993/ 9 4 CB COM2 MAX4994 NO2 10 3 COM1 1 2 Typical Application Circuit appears at end of data sheet. UTQFN Ordering Information/Selector Guide SLOW-SWITCHING TOP PART PIN-PACKAGE CONFIGURATION ENABLE LINE TIME MARK MAX4991EVB+* 10 UTQFN Dual SPDT Yes No AAD MAX4992EVB+ 10 UTQFN Dual SPDT No No AAE MAX4993EVB+ 10 UTQFN DPDT Yes Yes AAF MAX4994EVB+* 10 UTQFN DPDT No Yes AAG Note: All devices operate over -40C to +85C extended temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. *Future productcontact factory for availability. 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. V NC2 V NC2 CC CC NO1 GND NO1 GNDLow R , Dual-SPDT/Single-DPDT Analog ON Switches with Slow Turn-On Time ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND.) Junction-to-Case Thermal Resistance ( ) (Note 1) JC V , CB , EN ........................................................-0.3V to +6.0V 10-Pin UTQFN ...........................................................20.1C/W CC COM , NC , NO ...................................... -0.3V to (V + 0.3V) Junction-to-Ambient Thermal Resistance ( ) (Note 1) CC JA Continuous Current COM , NC , NO ...........................350mA 10-Pin UTQFN .........................................................143.1C/W Peak Current COM , NC , NO (pulsed at 1ms, Operating Temperature Range ...........................-40C to +85C 50% duty cycle)..........................................................700mA Junction Temperature Range ..........................................+150C Peak Current COM , NC , NO (pulsed at 1ms, Storage Temperature Range ............................ -65C to +150C 10% duty cycle)..............................................................1.5A Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) A 10-Pin UTQFN (derate 6.9mW/C above +70C).........559mW Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a 4-layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. 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. ELECTRICAL CHARACTERISTICS (V = +2.7V to +5.5V, T = -40C to +85C, unless otherwise noted. Typical values are at V = +3.0V, T = +25C.) (Note 2) CC A CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Power-Supply Range V 1.8 5.5 V CC Undervoltage Lockout V 1.4 V UVLO V = +3V 1.2 2.5 CC V = V = 0V or V CB1 CB2 CC V = +5.5V 3.1 6 Supply Current CC I A CC (MAX4991/MAX4992) V = +2.7V 3 V = V = +0.5V or CC CB1 CB2 +1.4V V = +5.5V 14 CC V = V , V = 0V or V V = +5.5V 0.1 1 EN CC CB CC CC V = +3V 1.2 2.5 CC V = 0V, V = 0V or V EN CB CC Supply Current I V = +5.5V 3.1 6 A CC CC (MAX4993/MAX4994) V = +2.7V 3 CC V = V = +0.5V or +1.4V EN CB V = +5.5V 8.5 CC Power-Supply Rejection PSRR R = R = 50 , f = 20kHz 80 dB L S Ratio V , V , NC NO Analog Signal Range 0 V V CC V COM T = +25C 0.3 0.5 V = +2.7V, V or V = 0 A CC NC NO On-Resistance R ON to V , I = 100mA CC COM T = T to T 0.6 A MIN MAX On-Resistance Match V = +2.7V, between NC , NO only, CC R 3 m ON Between Channels I = 100mA, V or V = V /2 COM NC NO CC V = +2.7V, V or V = 0 to V , CC NC NO CC On-Resistance Flatness R 1 m FLAT I = 100mA (Note 3) COM f = 20Hz to 20kHz 1 COM Output Noise N V = V = 0V, R = 50 V COM NC NO L RMS f = 0Hz to 1MHz 50 2 MAX4991MAX4994