19-4036; Rev 0; 2/08 Triple DPDT, Low-Capacitance Data Switches Features The MAX4996/MAX4996L triple DPDT analog switches operate from a single +2.5V to +5.5V supply, and feature 2.0 (typ) on-resistance, low 6pF (typ) on-capacitance, and low power-supply current consumption. The MAX4996/MAX4996L combine the low capacitance and low resistance necessary for high-frequency switching applications in portable electronics. Multiplex SD2.0/SDIO Interfaces The MAX4996/MAX4996L have three logic inputs to control the switches in pairs. The MAX4996 has an active-high enable input (EN) to disable the switches, while the MAX4996L has an active-low enable input (EN) to disable the switches. The enable input decreases the supply current and also places the COM_ outputs in a high-impedance state. The MAX4996/MAX4996L feature a 5A (max) supplycurrent consumption when the logic inputs are not rail-to-rail. This feature is especially valuable in applications where direct interface to low-voltage processors is necessary. The MAX4996/MAX4996L are available in a spacesaving 24-pin (3.5mm x 3.5mm) TQFN package and operate over the -40C to +85C temperature range. Low On-Resistance, 2 (typ) Low Power Consumption (2A max) +2.5V to +5.5V Supply Voltage Range Rail-to-Rail Signal Handling Low-Capacitance Switches, 6pF (typ) Excellent On-Resistance Flatness Over the Range of 0V to VCC Wide -3dB Bandwidth, 670MHz Small 24-Pin TQFN (3.5mm x 3.5mm) Pin Configuration/Truth Tables UART Signal Switching NO5 23 Cell Phones NO6 24 COM1 COM2 COM3 EN (EN) VCC GND 17 16 15 14 13 1 PDAs + CB12 GPS Portable Media Players (PMP) NC1 11 NC2 10 NC3 9 NC4 8 NC5 7 NC6 6 22 12 COM6 NO4 5 USB Signal Switching MAX4996 MAX4996L COM5 21 4 NO3 COM4 SD Card Switching 3 20 CB56 NO2 Applications *EP 2 19 CB34 NO1 18 TOP VIEW TQFN 3.5mm x 3.5mm Ordering Information PART PINPACKAGE PACKAGE CODE (EN) FOR MAX4996L ONLY. *CONNECT EXPOSED PADDLE TO GROUND. TRUTH TABLES MAX4996ETG+ 24 TQFN-EP* T243A3-1 MAX4996/MAX4996L MAX4996LETG+ 24 TQFN-EP* T243A3-1 CB12 NO1/NO2 NC1/NC2 ON OFF LOW OFF ON HIGH CB34 NO3/NO4 NC3/NC4 OFF ON LOW ON OFF HIGH CB56 NO5/NO6 NC5/NC6 LOW OFF ON HIGH ON OFF Note: All devices operate over the -40C to +85C extended temperature range. +Denotes a lead-free package. *EP = Exposed paddle. Typical Operating Circuit appears at end of data sheet. MAX4996 EN CB_ NO_ NC_ HIGH HIGH LOW LOW HIGH X OFF ON OFF ON OFF OFF EN CB_ NO_ NC_ LOW LOW HIGH LOW HIGH X OFF ON OFF ON OFF OFF MAX4996L ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 MAX4996/MAX4996L General Description MAX4996/MAX4996L Triple DPDT, Low-Capacitance Data Switches ABSOLUTE MAXIMUM RATINGS VCC to GND ...........................................................-0.3V to +6.0V EN, EN, CB_ ..........................................................-0.3V to +6.0V All Other Pins to GND ..................................-0.3V to VCC + 0.3V Continuous Current NO_, NC_, COM_ .......................................................150mA Peak Current NO_, NC_, COM_ (pulsed at 1ms, 50% Duty Cycle)...............................300mA (pulsed at 1ms, 10% Duty Cycle)...............................450mA ESD per Human Body Model...............................................2kV Continuous Power Dissipation (TA = +70C) 24-Pin TQFN (derate 20.8mW/C above +70C).............................................................1228mW Thermal Resistance (Note 1) JA .............................................................................65.1C/W JC ...............................................................................5.4C/W Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering) .........................................+300C Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal considerations see 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 (VCC = +2.5V to +5.5V, TA = -40C to +85C, unless otherwise noted. Typical values are at VCC = 2.8V, TA = +25C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS VCC V 2 4 ANALOG SWITCH Analog Signal Range On-Resistance VCOM, VNO, VNC_ RON 0 VCOM_= 0 to VCC , ICOM_= 25mA On-Resistance Match Between Channels RON VCC = 2.8V, ICOM_= 25mA; VNO_ = 1.5V or VNC _= 1.5V (Note 4) 0.1 0.2 On-Resistance Flatness RFLAT VCC = 2.5V, ICOM_= 25mA; VCOM_= 0 to VCC (Note 5) 0.2 0.5 +250 nA 180 A +250 nA Off-Leakage Current On-Leakage Current -3dB Bandwidth ICOM_ (OFF) ICOM_ (ON) VCC = 4V, VCOM_ = 0, 4V; VNO_ , VNC_ = 4V, 0 -250 VCC = 5.5V, VCOM_ = 5.5V; VNO, VNC with 50A sink current to GND VCC = 5.5V, VCOM_ = 0, 5.5V; VNO_, VNC_unconnected -250 BW RL = RS = 50, CL = 5pF, Figure 4 670 MHz Off-Isolation VISO f = 1MHz, VNO_, VNC_ = 0; CL = 5pF, RL = RS = 50, Figure 4 (Note 6) -60 dB Crosstalk VCT f = 1MHz, VNO_, VNC_ = 0; RL = RS = 50, Figure 4 (Note 7) -120 dB LOGIC INPUTS Input Logic High VIH Input Logic Low VIL Input Leakage Current 2 ILEAK 1.4 0 V VIL and VIH V VCC; VCC = 5.5V -250 _______________________________________________________________________________________ V 0.5 V +250 nA Triple DPDT, Low-Capacitance Data Switches MAX4996/MAX4996L ELECTRICAL CHARACTERISTICS (continued) (VCC = +2.5V to +5.5V, TA = -40C to +85C, unless otherwise noted. Typical values are at VCC = 2.8V, TA = +25C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SWITCH DYNAMICS Turn-On Time tON VCC = 2.7V, VNO_ or VNC_ = 1.5V; RL = 50, CL = 35pF, Figure 1 100 s Turn-Off Time tOFF VCC = 2.7V, VNO_ or VNC_ = 1.5V; RL = 50, CL = 35pF, Figure 1 6 s Break-Before-Make Interval tBBM VCC = 2.7V ; VNO_, or VNC_ = 1.5V; RL = 50, CL = 35pF, Figure 2 10 s Output Skew Between Switches tSKEW RL = RS = 50, Figure 3 40 Ps 2.5 pF f = 10MHz, VBIAS = 0V, signal = 500mVP-P, Figure 5 4 pF f = 10MHz, VBIAS = 0V, signal = 500mVP-P, Figure 5 6 pF NO or NC Off-Capacitance COM Off-Capacitance COM On-Capacitance Operating Power-Supply Range CNO_ (OFF) f = 10MHz, VBIAS = 0V, CNC_ (OFF) signal = 500mVP-P, Figure 5 CCOM_ (OFF) CCOM_ (ON) VCC Shutdown Supply Current VCC Supply Current 2.5 5.5 V 0.1 0.5 A VCC = 2.8V 1 2 VCC = 5.5V 5 10 VEN = 0 (MAX4996), VEN = VCC (MAX4996L) ICC VCB_ = 0 or VCC; VEN = VCC (MAX4996); VEN = 0 (MAX4996L) A Increase in Supply Current with VCB / VEN Voltage 0 VCB_ VIL or VIH VCB_ VCC or 0 VEN VIL or VIH VEN VCC ESD Protection Human Body Model 5 2 A kV The algebraic convention is used. The most negative value is shown in the minimum column. Parts are 100% tested at TA = +25C. Limits across the full temperature range are guaranteed by correlation and design. RON = RON(MAX) - RON(MIN). Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. Note 6: Off-isolation = 20log10 [VCOM_ / (VNO_ or VNC_)], VCOM_ = output, VNO_ or VNC_= input to off switch. Note 7: Between any two switches. Note 2: Note 3: Note 4: Note 5: _______________________________________________________________________________________ 3 Typical Operating Characteristics (VCC = 3V, TA = +25C, unless otherwise noted.) 2.5 VCC = 2.7V 2.0 1.5 1.0 TA = -40C TA = -40C 1.0 2 3 4 5 0 0 1 VCOM (V) 2 0 1 2 VCOM (V) SUPPLY CURRENT vs. SUPPLY VOLTAGE 5 MAX4996/6L toc04 45 40 35 4 30 ICC (A) TA = -40C TO +85C 25 20 3 2 15 10 1 5 0 0 1 2 3 0 VCOM (V) 4 6 VCC (V) QUIESCENT SUPPLY CURRENT vs. TEMPERATURE LOGIC THRESHOLD vs. SUPPLY VOLTAGE 2.0 MAX4996/6L toc06 3.5 3.0 VCC = 5.0V 1.5 THRESHOLD (V) 2.5 ICC (A) 2 2.0 1.5 VCC = 3.0V 1.0 MAX4996/6L toc07 0 VIH 1.0 VIL 0.5 0.5 0 0 -40 -15 10 35 TEMPERATURE (C) 4 60 85 3 VCOM (V) COM_ON LEAKAGE CURRENT vs. OVERTEMPERATURE ICOM_ON (nA) 3 MAX4996/6L toc05 1 TA = +25C 0.5 VCC = 5.0V 1.0 0 TA = +85C TA = +25C VCC = 3.0V 1.5 VCC = 5.0V 1.5 RON () TA = +85C RON () VCC = 2.5V 2.0 MAX4996/6L toc02 MAX4996/6L toc01 2.5 2.0 ON-RESISTANCE vs. VCOM ON-RESISTANCE vs. VCOM 3.0 MAX4996/6L toc03 ON-RESISTANCE vs. VCOM 3.0 RON () MAX4996/MAX4996L Triple DPDT, Low-Capacitance Data Switches 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 VCC (V) _______________________________________________________________________________________ 4 5 Triple DPDT, Low-Capacitance Data Switches INPUT ON-LOSS FREQUENCY RESPONSE QUIESCENT SUPPLY CURRENT vs. LOGIC LEVEL 6 4 MAX4996/6L toc09 -5 ON-LOSS (dB) 8 ICC (A) 0 MAX4996/6L toc08 10 2 -10 -15 -20 -25 0 0 0.5 1.0 1.5 2.0 2.5 1 3.0 10 INPUT CROSSTALK FREQUENCY RESPONSE 1,000 10,000 INPUT OFF-ISOLATION FREQUENCY RESPONSE -20 -20 ON-LOSS (dB) -40 -60 -80 MAX4996/6L toc11 0 MAX4996/6L toc10 0 ON-LOSS (dB) 100 FREQUENCY (MHz) VCB (V) -40 -60 -80 -100 -100 -120 -120 0.01 0.1 1 10 FREQUENCY (MHz) 100 1,000 0.01 0.1 1 10 100 1,000 FREQUENCY (MHz) _______________________________________________________________________________________ 5 MAX4996/MAX4996L Typical Operating Characteristics (continued) (VCC = 3V, TA = +25C, unless otherwise noted.) Triple DPDT, Low-Capacitance Data Switches MAX4996/MAX4996L Pin Description 6 PIN NAME FUNCTION 1 CB12 Digital Control Input for Analog Switches 1 and 2. Drive CB12 low to connect COM1 to NC1 and COM2 to NC2. Drive CB12 high to connect COM1 to NO1 and COM2 to NO2. 2 CB34 Digital Control Input for Analog Switches 3 and 4. Drive CB34 low to connect COM3 to NC3 and COM4 to NC4. Drive CB34 high to connect COM3 to NO3 and COM4 to NO4. 3 CB56 Digital Control Input for Analog Switches 5 and 6. Drive CB56 low to connect COM5 to NC5 and COM6 to NC6. Drive CB56 high to connect COM5 to NO5 and COM6 to NO6. 4 COM4 Analog Switch 4--Common Terminal 5 COM5 Analog Switch 5--Common Terminal 6 COM6 7 NC6 Analog Switch 6--Normally Closed Terminal 8 NC5 Analog Switch 5--Normally Closed Terminal 9 NC4 Analog Switch 4--Normally Closed Terminal 10 NC3 Analog Switch 3--Normally Closed Terminal 11 NC2 Analog Switch 2--Normally Closed Terminal 12 NC1 Analog Switch 1--Normally Closed Terminal 13 GND Ground 14 VCC Positive Supply Voltage. Bypass VCC to GND with a 0.1F ceramic capacitor as close as possible to the device. 15 EN, EN Enable Logic Input. For the MAX4996, drive EN high to enable all the switches. Drive EN low to disable all switches. For the MAX4996L, drive EN low to enable all the switches. Drive EN high to disable all switches. COM_ is high impedance when the switch is disabled. (See Pin Configuration/Truth Tables.) 16 COM3 Analog Switch 3--Common Terminal 17 COM2 Analog Switch 2--Common Terminal 18 COM1 Analog Switch 1--Common Terminal 19 NO1 Analog Switch 1--Normally Open Terminal 20 NO2 Analog Switch 2--Normally Open Terminal 21 NO3 Analog Switch 3--Normally Open Terminal 22 NO4 Analog Switch 4--Normally Open Terminal 23 NO5 Analog Switch 5--Normally Open Terminal 24 NO6 Analog Switch 6--Normally Open Terminal -- EP Analog Switch 6--Common Terminal Exposed Paddle. Internally connected to GND. Connect to a large ground plane to maximize thermal performance; not intended as an electrical connection point. _______________________________________________________________________________________ Triple DPDT, Low-Capacitance Data Switches MAX4996 MAX4996L COM_ NO_ OR NC_ VIN LOGIC INPUT t r < 5ns t f < 5ns 50% VCC 50% 0V VOUT RL t OFF CL CB_ VOUT LOGIC INPUT SWITCH OUTPUT 0.9 x V0UT 0.9 x VOUT 0V t ON CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VOUT = VIN RL + RON ( ) Figure 1. Switching Time MAX4996 MAX4996L VIN LOGIC INPUT 50% 0V NC_ COM_ VOUT NO_ CB_ VCC RL LOGIC INPUT CL 0.9 x VOUT VOUT tBBM CL INCLUDES FIXTURE AND STRAY CAPACITANCE. Figure 2. Break-Before-Make Interval _______________________________________________________________________________________ 7 MAX4996/MAX4996L Timing Circuits/Timing Diagrams Triple DPDT, Low-Capacitance Data Switches MAX4996/MAX4996L Timing Circuits/Timing Diagrams (continued) RS VIN+ MAX4996/ MAX4996L NC OR NO_ COM_ VOUT+ RL RS VIN- NC OR NO_ COM_ VOUTRL CB VIL TO VIH tSKEW = |tPLHX - tPLHY| OR |tPHLX - tPHLY| VCC VIN+ 50% 50% 50% 50% 0V VCC VIN0V tPLHX tPHLX VCC VOUT+ 50% 50% 50% 50% 0V VCC VOUT0V tPHLY tPLHY Figure 3. Input/Output Skew Timing Diagram 8 _______________________________________________________________________________________ Triple DPDT, Low-Capacitance Data Switches OFF-ISOLATION = 20log NETWORK ANALYZER 0 OR VCC CB_ NC1 50 COM1 MAX4996 MAX4996L NO1* 50 VIN VOUT V ON-LOSS = 20log OUT VIN 50 MEAS V CROSSTALK = 20log OUT VIN REF 50 VOUT VIN 50 *FOR CROSSTALK THIS PIN IS NO2. NC2 AND COM2 ARE OPEN. MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND OFF NO_ OR NC_ TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM_ AND ON NO_ OR NC_ TERMINAL ON EACH SWITCH. CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED. Figure 4. On-Loss, Off-Isolation, and Crosstalk COM_ MAX4996 MAX4996L CB_ CAPACITANCE METER VIL OR VIH NC_ or NO_ f = 10MHz Figure 5. Channel On-/Off-Capacitance _______________________________________________________________________________________ 9 MAX4996/MAX4996L Timing Circuits/Timing Diagrams (continued) MAX4996/MAX4996L Triple DPDT, Low-Capacitance Data Switches Functional Diagram Detailed Description The MAX4996/MAX4996L triple DPDT analog switches operate from a single +2.5V to +5.5V supply and feature 2.0 (typ) on-resistance, low 6pF (typ) on-capacitance, and low power-supply current consumption. The combination of low resistance and low capacitance make this switch ideal for high-frequency applications. The MAX4996 has an active-high enable input (EN) to disable the switches, while the MAX4996L has an active-low enable input (EN) to disable the switches. The enable input decreases the supply current and also places the COM_ outputs in a high-impedance state. VCC MAX4996/MAX4996L CB12 NO1 COM1 NC1 NO2 COM2 NC2 Digital Control Inputs Each pair of switches feature a digital-control logic input: CB_. CB_ controls the position of the switches as shown in the Pin Configuration/Truth Tables . The MAX4996/MAX4996L also feature an enable input to turn all switches on or off. Drive EN low on the MAX4996, or EN high on the MAX4996L, to disable the switches. While disabled, the switches are high-impedance and the supply current drops to 0.1A (typ). To enable all switches, drive EN high on the MAX4996 or EN low on the MAX4996L. CB34 NO3 COM3 NC3 NO4 COM4 NC4 CB56 Driving all digital inputs (CB_, EN, EN) rail-to-rail minimizes supply current. NO5 Analog Signal Levels NO6 The on-resistance of the MAX4996/MAX4996L are very low and stable as the analog input signals are swept from ground to V CC (see the Typical Operating Characteristics ). These switches are bidirectional, allowing NO_, NC_, and COM_ to be configured as either inputs or outputs. COM5 NC5 COM6 NC6 EN (EN) GND Applications Information Chip Information Power-Supply Bypassing Power-supply bypassing improves noise margin and prevents switching noise from propagating from the V CC supply to other components. A 0.1F ceramic capacitor connected from VCC to GND is adequate for most applications. PROCESS: BiCMOS Power-Supply Sequencing Always apply VCC before the analog signals. 10 ______________________________________________________________________________________ Triple DPDT, Low-Capacitance Data Switches VCC CB12 CLK NO1 COM1 NC1 CMD NO2 COM2 BASEBAND NC2 SD CARD INTERFACE CB34 DAT0 NO3 COM3 NC3 DAT1 SD CARD NO4 COM4 NC4 CB56 DAT2 NO5 COM5 NC5 DAT3 NO6 COM6 NC6 CLK CMD APPLICATION PROCESSOR EN (EN) GND DIGITAL CONTROL FROM BASEBAND MAX4996/ MAX4996L SD CARD INTERFACE DAT0 DAT1 DAT2 DAT3 ______________________________________________________________________________________ 11 MAX4996/MAX4996L Typical Operating Circuit Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 24L THIN QFN.EPS MAX4996/MAX4996L Triple DPDT, Low-Capacitance Data Switches 12 ______________________________________________________________________________________ Triple DPDT, Low-Capacitance Data Switches Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 (c) 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc. MAX4996/MAX4996L Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.)