19-2633; Rev 1; 4/04 4.5 Quad SPST Analog Switches in UCSP Features The MAX4737/MAX4738/MAX4739 low-voltage, low onresistance (RON), quad single-pole/single throw (SPST) analog switches operate from a single +1.8V to +5.5V supply. These devices are designed for USB 1.1 and audio switching applications. The MAX4737/MAX4738/MAX4739 feature 4.5 RON (max) with 1.2 flatness and 0.4 matching between channels. These new switches feature guaranteed operation from +1.8V to +5.5V and are fully specified at 3V and 5V. These switches offer break-before-make switching (1ns) with t ON <80ns and t OFF <40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to +3.6V supply. These switches are packaged in a chip-scale package (UCSPTM), significantly reducing the required PC board area. The chip occupies only a 2mm 2mm area and has a 4 4 bump array with a bump pitch of 0.5mm. These switches are also available in a 14-pin TSSOP and a 16-pin thin QFN (4mm x 4mm) package. USB 1.1 Signal Switching 2ns (max) Differential Skew -3dB Bandwidth: >300MHz Low 20pF On-Channel Capacitance Low RON 4.5 (max) (+3V Supply) 3 (max) (+5V Supply) 0.4 (max) RON Match (+3V Supply) 1.2 (max) RON Flatness (+3V Supply) <0.5nA Leakage Current at +25C High Off-Isolation: -55dB (10MHz) Low Crosstalk: -80dB (10MHz) Low Distortion: 0.03% +1.8V CMOS-Logic Compatible Single-Supply Operation from +1.8V to +5.5V Rail-to-Rail Signal Handling Applications Ordering Information Battery-Operated Equipment PART Audio/Video-Signal Routing TEMP RANGE PIN/BUMPPACKAGE TOP MARK Low-Voltage Data-Acquisition Systems MAX4737EUD -40C to +85C 14 TSSOP -- Sample-and-Hold Circuits MAX4737ETE -40C to +85C 16 Thin QFN -- MAX4737EBE-T -40C to +85C 16 UCSP-16 4737 MAX4738EUD -40C to +85C 14 TSSOP -- MAX4738ETE -40C to +85C 16 Thin QFN -- MAX4738EBE-T -40C to +85C 16 UCSP-16 4738 MAX4739EUD -40C to +85C 14 TSSOP -- MAX4739ETE -40C to +85C 16 Thin QFN -- MAX4739EBE-T -40C to +85C 16 UCSP-16 4739 Data-Acquisition Systems Communications Circuits UCSP is a trademark of Maxim Integrated Products, Inc. Pin Configurations/Functional Diagrams/Truth Tables MAX4737 TOP VIEW (BUMPS SIDE DOWN) MAX4738 1 2 3 4 IN2 IN3 NO3 COM3 A MAX4739 1 2 3 4 IN2 IN3 NC3 COM3 A B GND COM4 C V+ COM2 NO4 D GND COM4 NO1 IN1 UCSP IN4 4 IN2 IN3 NO3 COM3 GND COM4 COM2 C NC2 V+ NC4 D COM1 3 B C NO2 2 A B COM2 1 NC2 V+ COM1 NO1 IN_ LOW HIGH NO_ OFF ON NC_ ON OFF NC4 D COM1 NC1 IN1 IN4 UCSP IN1 IN4 UCSP Pin Configurations/Functional Diagrams/Truth Tables continued at end of data sheet ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 MAX4737/MAX4738/MAX4739 General Description MAX4737/MAX4738/MAX4739 4.5 Quad SPST Analog Switches in UCSP ABSOLUTE MAXIMUM RATINGS (All Voltages Referenced to GND) V+, IN_...................................................................-0.3V to +6.0V COM_, NO_, NC_ (Note 1) ...........................-0.3V to (V+ + 0.3V) Continuous Current COM_, NO_, NC_ ...........................100mA Peak Current COM_, NO_, NC_ (pulsed at 1ms, 10% duty cycle)................................200mA Continuous Power Dissipation (TA = +70C) 14-Pin TSSOP (derate 6.3mW/C above +70C) .........500mW 16-Bump UCSP (derate 8.3mW/C above +70C) ......659mW 16-Pin Thin QFN (derate 25mW/C above +70C) ....2000mW ESD Method 3015.7 .............................................................>2kV Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C Bump Temperature (soldering) Infrared (15s) ...............................................................+220C Vapor Phase (60s) .......................................................+215C Note 1: Signals on COM_, NO_, or NC_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to maximum current rating. 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--Single +3V Supply (V+ = +2.7V to +3.6V, VIH = +1.4V, VIL = +0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V, TA = +25C, unless otherwise noted.) (Notes 3, 4) PARAMETER Analog Signal Range SYMBOL CONDITIONS TA VCOM_, VNO_, VNC_ MIN TYP 0 MAX UNITS V+ V ANALOG SWITCH +25C On-Resistance (Note 5) RON V+ = 2.7V, ICOM_ = 10mA; VNO_ or VNC_ = 1.5V RON V+ = 2.7V, ICOM_ = 10mA; VNO_ or VNC_ = 1.5V 3.0 TMIN to TMAX 5 +25C On-Resistance Match Between Channels (Notes 5, 6) 0.1 TMIN to TMAX RFLAT(ON) V+ = 2.7V, ICOM_ = 10mA; VNO_ or VNC_ = 1.0V, 1.5V, 2.0V NO_, NC_ Off-Leakage Current (Note 8) INO_(OFF), INC_(OFF) V+ = 3.6V, VCOM_ = 0.3V, 3.3V; VNO_ or VNC_ = 3.3V, 0.3V COM_ Off-Leakage Current (Note 8) V+ = 3.6V, VCOM_ = 0.3V, 3.3V; ICOM_(OFF) VNO_ or VNC_ = 3.3V, 0.3V COM_ On-Leakage Current (Note 8) ICOM_(ON) 2 V+ = 3.6V, VCOM_ = 0.3V, 3.3V; VNO_ or VNC_ = 0.3V, 3.3V, or floating 0.6 TMIN to TMAX -0.5 TMIN to TMAX -1 +25C -0.5 TMIN to TMAX -1 +25C -1 TMIN to TMAX -2 +0.01 _______________________________________________________________________________________ nA +0.5 +1 +0.01 +0.5 +1 +0.01 1.2 1.5 +25C 0.4 0.5 +25C On-Resistance Flatness (Note 7) 4.5 nA +1 +2 nA 4.5 Quad SPST Analog Switches in UCSP (V+ = +2.7V to +3.6V, VIH = +1.4V, VIL = +0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V, TA = +25C, unless otherwise noted.) (Notes 3, 4) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX tON VNO_, VNC_ = 1.5V; RL = 300, CL = 35pF, Figure 1 40 80 tOFF VNO_, VNC_ = 1.5V; RL = 300, CL = 35pF, Figure 1 Break-Before-Make Time Delay (MAX4739 Only) (Note 8) tBBM VNO_, VNC_ = 1.5V; RL = 300, CL = 35pF, Figure 2 Skew (Note 8) tSKEW RS = 39, CL = 50pF, Figure 3 TMIN to TMAX 0.15 VGEN = 2V, RGEN = 0, CL = 1.0nF, Figure 4 +25C 5 UNITS DYNAMIC CHARACTERISTICS +25C Turn-On Time TMIN to TMAX 100 +25C Turn-Off Time 20 TMIN to TMAX Charge Injection Q Off-Isolation (Note 9) Crosstalk (Note 10) VISO VCT f = 10MHz; VNO_, VNC_ = 1VP-P; RL = 50, CL = 5pF, Figure 5a TMIN to TMAX ns 8 ns 1 2 ns pC -55 +25C dB f = 1MHz; VNO_, VNC_ = 1VP-P; RL = 50, CL = 5pF, Figure 5a f = 10MHz; VNO_, VNC_ = 1VP-P; RL = 50, CL = 5pF, Figure 5b 40 50 +25C ns -80 -80 +25C dB f = 1MHz; VNO_, VNC_ = 1VP-P; RL = 50, CL = 5pF, Figure 5b -110 On-Channel -3dB Bandwidth BW Signal = 0dBm, CL = 5pF, 50 in and out, Figure 5a +25C 300 MHz Total Harmonic Distortion THD RL = 600 +25C 0.03 % +25C 9 pF +25C 15 pF NO_, NC_ Off-Capacitance Switch On-Capacitance CNO_(OFF), f = 1MHz, Figure 6 CNC_(OFF) CON f = 1MHz, Figure 6 DIGITAL I/O Input Logic High Voltage VIH TMIN to TMAX Input Logic Low Voltage VIL TMIN to TMAX Input Leakage Current IIN V+ = 3.6V, VIN_ = 0 or 5.5V TMIN to TMAX 1.4 -0.1 V 0.5 V +0.1 A _______________________________________________________________________________________ 3 MAX4737/MAX4738/MAX4739 ELECTRICAL CHARACTERISTICS--Single +3V Supply (continued) MAX4737/MAX4738/MAX4739 4.5 Quad SPST Analog Switches in UCSP ELECTRICAL CHARACTERISTICS--Single +3V Supply (continued) (V+ = +2.7V to +3.6V, VIH = +1.4V, VIL = +0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +3.0V, TA = +25C, unless otherwise noted.) (Notes 3, 4) PARAMETER SYMBOL CONDITIONS TA MIN TMIN to TMAX 1.8 TYP MAX UNITS 5.5 V 1 A SUPPLY Supply Voltage Range V+ Positive Supply Current I+ V+ = 5.5V, VIN_ = 0V or V+ TMIN to TMAX ELECTRICAL CHARACTERISTICS--Single +5V Supply (V+ = +4.2V to +5.5V, VIH = +2.0V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +5.0V, TA = +25C, unless otherwise noted.) (Notes 3, 4) PARAMETER Analog Signal Range SYMBOL CONDITIONS VCOM_, VNO_, VNC_ TA MIN TMIN to TMAX 0 TYP MAX UNITS V+ V ANALOG SWITCH +25C On-Resistance (Note 5) RON V+ = 4.2V; ICOM_ = 10mA; VNO_ or VNC_ = 3.5V RON V+ = 4.2V; ICOM_ = 10mA; VNO_ or VNC_ = 3.5V 1.7 TMIN to TMAX 3.5 +25C On-Resistance Match Between Channels (Notes 5, 6) 0.1 TMIN to TMAX RFLAT(ON) V+ = 4.2V; ICOM_ = 10mA; VNO_ or VNC_ = 1.0V, 2.0V, 3.5V NO_, NC_ Off-Leakage Current (Note 8) INO_(OFF), INC_(OFF) V+ = 5.5V; VCOM_ = 1.0V, 4.5V; VNO_ or VNC_ = 4.5V, 1.0V COM_ Off-Leakage Current (Note 8) ICOM_ (OFF) V+ = 5.5V; VCOM_ = 1V, 4.5V; VNO_ or VNC_ = 4.5V, 1V COM_ On-Leakage Current (Note 8) ICOM_(ON) V+ = 5.5V; VCOM_ = 1.0V, 4.5V; VNO_ or VNC_ = 1.0V, 4.5V, or floating Turn-On Time tON VNO_, VNC_ = 3.0V; RL = 300, CL = 35pF, Figure 1 Turn-Off Time tOFF VNO_, VNC_ = 3.0V; RL = 300, CL = 35pF, Figure 1 0.4 TMIN to TMAX -0.5 TMIN to TMAX -1 +25C -0.5 TMIN to TMAX -1 +25C -1 TMIN to TMAX -2 0.01 nA +0.5 +1 0.01 +0.5 +1 0.01 1.2 1.5 +25C 0.3 0.4 +25C On-Resistance Flatness (Note 7) 3.0 nA +1 +2 nA DYNAMIC CHARACTERISTICS +25C +25C 4 30 TMIN to TMAX 80 100 20 TMIN to TMAX _______________________________________________________________________________________ ns 40 50 ns 4.5 Quad SPST Analog Switches in UCSP (V+ = +4.2V to +5.5V, VIH = +2.0V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = +5.0V, TA = +25C, unless otherwise noted.) (Notes 3, 4) PARAMETER SYMBOL CONDITIONS TA MIN +25C Break-Before-Make Time Delay (MAX4739 Only) (Note 8) tBBM VNO_, VNC_ = 3.0V; RL = 300, CL = 35pF, Figure 2 Skew (Note 8) tSKEW RS = 39, CL = 50pF, Figure 3 TMIN to TMAX TYP MAX UNITS 8 ns 1 TMIN to TMAX 0.15 2 ns DIGITAL I/O Input Logic High Voltage VIH TMIN to TMAX Input Logic Low Voltage VIL TMIN to TMAX Input Leakage Current IIN V+ = 5.5V, VIN_ = 0V or V+ 2.0 V 0.8 V TMIN to TMAX -0.1 +0.1 A TMIN to TMAX 1.8 5.5 V 1 A POWER SUPPLY Power-Supply Range V+ Positive Supply Current I+ V+ = 5.5V, VIN_ = 0V or V+ TMIN to TMAX UCSP parts are 100% tested at +25C only, and guaranteed by design over the specified temperature range. TSSOP and thin QFN parts are 100% tested at TMAX and guaranteed by design over the specified temperature range. Note 4: The algebraic convention used in this data sheet is where the most negative value is a minimum and the most positive value is a maximum. Note 5: Guaranteed by design for UCSP and thin QFN parts. Note 6: RON = RON(MAX) - RON(MIN). Note 7: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. Note 8: Guaranteed by design. Note 9: Off-Isolation = 20log10 (VCOM / VNO), VCOM = output, VNO = input to off switch. Note 10: Between any two switches. Note 3: _______________________________________________________________________________________ 5 MAX4737/MAX4738/MAX4739 ELECTRICAL CHARACTERISTICS--Single +5V Supply (continued) Typical Operating Characteristics (TA = +25C, unless otherwise noted.) V+ = 2.5V V+ = 3V V+ = 4.2V 2 1 2 3 4 2 1 5 0.5 1.5 2.0 2.5 3.0 0 COM OFF-LEAKAGE 200 1000 V+ = 5V 800 LEAKAGE CURRENT (pA) COM ON-LEAKAGE 100 2 0 60 600 COM ON-LEAKAGE COM OFF-LEAKAGE 400 85 4 40 CL = 1nF V+ = 5V 30 CL = 1nF V+ = 3V 20 10 0 -40 -15 10 35 60 85 0 1 2 3 4 TEMPERATURE (C) TEMPERATURE (C) VCOM (V) SUPPLY CURRENT vs. TEMPERATURE SUPPLY CURRENT vs. LOGIC LEVEL TURN-ON/OFF TIME vs. SUPPLY VOLTAGE V+ = 5V 3 2 V+ = 3V 1 V+ = 5V 60 40 -15 10 35 TEMPERATURE (C) 60 85 60 tON 40 20 0 0 -40 80 tOFF V+ = 3V 20 0 5 MAX4737/38/39 toc08 80 tON/tOFF (ns) 4 100 MAX4737/38/39 toc07 5 100 SUPPLY CURRENT (A) MAX4737/38/39 toc06 6 5 CHARGE INJECTION vs. VCOM 0 35 3 50 200 10 1 VCOM (V) LEAKAGE CURRENT vs. TEMPERATURE MAX4737/38/39 toc04a 400 LEAKAGE CURRENT (pA) 1.0 VCOM (V) V+ = 3V 6 TA = -40C 0 0 LEAKAGE CURRENT vs. TEMPERATURE -15 TA = +85C TA = +25C 2 1 500 -40 3 3 VCOM (V) 300 4 CHARGE INJECTION (pC) 0 TA = +85C TA = +25C V+ = 5V TA = -40C V+ = 5V 0 4 MAX4737/38/39 toc04b 4 5 RON () 6 V+ = 3V MAX4737/38/39 toc05 MAX4737/38/39 toc01 V+ = 1.8V RON () RON () 8 ON-RESISTANCE vs. VCOM 5 MAX4737/38/39 toc03 ON-RESISTANCE vs. VCOM 6 MAX4737/38/39 toc02 ON-RESISTANCE vs. VCOM 10 SUPPLY CURRENT (nA) MAX4737/MAX4738/MAX4739 4.5 Quad SPST Analog Switches in UCSP 0 1 2 3 LOGIC LEVEL (V) 4 5 1.5 2.5 3.5 SUPPLY VOLTAGE (V) _______________________________________________________________________________________ 4.5 5.5 4.5 Quad SPST Analog Switches in UCSP tOFF, V+ = 3.0V 10 RISE DELAY 1.0 0.5 0 -15 10 35 85 60 1.5 2.5 3.5 4.5 RISE TIME TO FALL TIME MISMATCH vs. SUPPLY VOLTAGE RISE TIME TO FALL TIME MISMATCH vs. TEMPERATURE 50 2.5 3.5 5.5 4.5 85 200 0 -40 -15 SUPPLY VOLTAGE (V) 10 35 60 85 1.5 2.5 TEMPERATURE (C) INPUT RISE/FALL TIME = 15ns FIGURE 3, CL = 50pF V+ = 4.2V 4.5 5.5 FREQUENCY RESPONSE 20 100 50 V+ = 3V/5V 0 -20 ON-LOSS (dB) 150 3.5 SUPPLY VOLTAGE (V) SKEW vs. TEMPERATURE 200 SKEW (ps) 60 100 0 1.5 35 300 100 0 10 INPUT RISE/FALL TIME = 15ns FIGURE 3, CL = 50pF SKEW (ps) 150 100 -15 400 MAX4737/38/39 toc13 INPUT RISE/FALL TIME = 15ns FIGURE 3, CL = 50pF V+ = 4.2V MISMATCH (ps) 200 -40 SKEW vs. SUPPLY VOLTAGE 200 MAX4737/38/39 toc12 300 FALL DELAY TEMPERATURE (C) SUPPLY VOLTAGE (V) INPUT RISE/FALL TIME = 15ns FIGURE 3, CL = 50pF RISE DELAY 0.5 5.5 TEMPERATURE (C) 400 1.0 0 0 -40 MISMATCH (ps) FALL DELAY 1.5 MAX4737/38/39 toc16 tOFF, V+ = 5.0V 1.5 INPUT RISE/FALL TIME = 15ns FIGURE 3, CL = 50pF V+ = 4.2V MAX4737/38/39 toc14 20 OUTPUT RISE/FALL-TIME DELAY (ns) 30 2.0 MAX4737/38/39 toc15 tON/tOFF (ns) 40 INPUT RISE/FALL TIME = 15ns FIGURE 3, CL = 50pF 2.5 2.0 MAX4737/38/39 toc10 tON, V+ = 5.0V 3.0 OUTPUT RISE/FALL-TIME DELAY (ps) tON, V+ = 3.0V MAX4737/38/39 toc09 60 50 RISE/FALL-TIME DELAY vs. TEMPERATURE RISE/FALL-TIME DELAY vs. SUPPLY VOLTAGE MAX4737/38/39 toc11 TURN-ON/OFF TIME vs. TEMPERATURE ON-LOSS -40 -60 OFF-ISOLATION -80 -100 CROSSTALK -120 0 -40 -15 10 35 TEMPERATURE (C) 60 85 -140 0.0001 0.01 1 100 FREQUENCY (MHz) _______________________________________________________________________________________ 7 MAX4737/MAX4738/MAX4739 Typical Operating Characteristics (continued) (TA = +25C, unless otherwise noted.) Typical Operating Characteristics (continued) (TA = +25C, unless otherwise noted.) TOTAL HARMONIC DISTORTION vs. FREQUENCY LOGIC THRESHOLD vs. SUPPLY VOLTAGE 1.6 LOGIC THRESHOLD (V) V+ = 3V RL = 600 MAX4737/38/39 toc18 2.0 MAX4737/38/39 toc17 1 THD (%) MAX4737/MAX4738/MAX4739 4.5 Quad SPST Analog Switches in UCSP 0.1 VTH+ 1.2 VTH0.8 0.4 0 0.01 10 100 1k 10k 1.5 100k 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) FREQUENCY (Hz) Pin Description PIN MAX4738 MAX4737 8 MAX4739 FUNCTION UCSP TSSOP D2 1 15 -- -- -- D2 1 15 NO1 Analog-Switch Normally Open Terminal -- -- -- D2 1 15 -- -- -- NC1 Analog-Switch Normally Closed Terminal D1 2 1 D1 2 1 D1 2 1 COM1 C1 3 2 -- -- -- -- -- -- NO2 Analog-Switch Normally Open Terminal -- -- -- C1 3 2 C1 3 2 NC2 Analog-Switch Normally Closed Terminal B1 4 3 B1 4 3 B1 4 3 COM2 A1 5 4 A1 5 4 A1 5 4 IN2 Logic-Control Digital Input Logic-Control Digital Input UCSP TSSOP THIN QFN NAME THIN QFN UCSP TSSOP THIN QFN Analog-Switch Common Terminal Analog-Switch Common Terminal A2 6 5 A2 6 5 A2 6 5 IN3 B3 7 6 B3 7 6 B3 7 6 GND Ground. Connect to digital ground. A3 8 7 -- -- -- A3 8 7 NO3 Analog-Switch Normally Open Terminal -- -- -- A3 8 7 -- -- -- NC3 Analog-Switch Normally Closed Terminal A4 9 9 A4 9 9 A4 9 9 COM3 Analog-Switch Common Terminal B4 10 10 B4 10 10 B4 10 10 COM4 Analog-Switch Common Terminal _______________________________________________________________________________________ 4.5 Quad SPST Analog Switches in UCSP PIN MAX4738 MAX4737 MAX4739 FUNCTION TSSOP THIN QFN C4 11 11 -- -- -- -- -- -- NO4 Analog-Switch Normally Open Terminal -- -- -- C4 11 11 C4 11 11 NC4 Analog-Switch Normally Closed Terminal D4 12 12 D4 12 12 D4 12 12 IN4 Logic-Control Digital Input D3 13 13 D3 13 13 D3 13 13 IN1 Logic-Control Digital Input C2 14 14 C2 14 14 C2 14 14 V+ Positive Analog Supply -- -- 8, 16 -- -- 8, 16 -- -- 8, 16 N.C. UCSP TSSOP THIN QFN NAME UCSP UCSP TSSOP Detailed Description The MAX4737/MAX4738/MAX4739 quad SPST analog switches operate from a single +1.8V to +5.5V supply. The MAX4737/MAX4738/MAX4739 offer excellent AC characteristics, <0.5nA leakage current, less than 1ns differential skew, and 15pF on-channel capacitance. All of these devices are CMOS-logic compatible with V+ to GND signal handling capability. The MAX4737/MAX4738/MAX4739 are USB-complaint switches that provide 4.5 (max) on-resistance and 15pF on-channel capacitance to maintain signal integrity. At 12Mbps (USB full-speed data rate specification), the MAX4737/MAX4738/MAX4739 introduce less than 2ns propagation delay between input and output signals and less than 0.5ns change in skew for the output signals (see Figure 4). The MAX4737 has four normally open (NO) switches, the MAX4738 has four normally closed (NC) switches, and the MAX4739 has two NO switches and two NC switches. THIN QFN No Connection. Not internally connected. Analog Signal Levels Analog signals that range over the entire supply voltage (V+ to GND) are passed with very little change in on-resistance (see Typical Operating Characteristics). The switches are bidirectional, so the NO_, NC_, and COM_ pins can be either inputs or outputs. Power-Supply Bypassing Power-supply bypassing improves noise margin and prevents switching noise from propagating from the V+ supply to other components. A 0.1F capacitor connected from V+ to GND is adequate for most applications. UCSP Applications Information For the latest application details on UCSP construction, dimensions, tape carrier information, PC board techniques, bump-pad layout, and recommended reflow temperature profile, as well as the latest information on reliability testing results, refer to the Application Note: UCSP--A Wafer-Level Chip-Scale Package on Maxim's web site at www.maxim-ic.com/ucsp. Applications Information Digital Control Inputs The MAX4737/MAX4738/MAX4739 logic inputs accept up to +5.5V regardless of supply voltage. For example, with a +3.3V supply, IN_ can be driven low to GND and high to +5.5V allowing for mixing of logic levels in a system. Driving the control logic inputs rail-to-rail minimizes power consumption. For a +1.8V supply voltage, the logic thresholds are 0.5V (low) and 1.4V (high); for a +5V supply voltage, the logic thresholds are 0.8V (low) and 2.0V (high). _______________________________________________________________________________________ 9 MAX4737/MAX4738/MAX4739 Pin Description (continued) MAX4737/MAX4738/MAX4739 4.5 Quad SPST Analog Switches in UCSP Test Circuits/Timing Diagrams MAX4737/ MAX4738/ MAX4739 V+ V N_ LOGIC INPUT V+ COM_ NO_ OR NC_ V IH 50% V IL V OUT RL t OFF CL IN_ VOUT GND LOGIC INPUT SWITCH OUTPUT ( 0.9 x VOUT t ON CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL RL - RON VOUT = VCOM 0.9 x V0UT 0V LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. ) Figure 1. Switching Time V+ MAX4739 V+ VCOM1 VCOM2 COM1 VOUT2 NC_ COM2 RL2 IN_ LOGIC INPUT VOUT1 NO_ GND CL2 RL1 LOGIC INPUT V IH 50% V IL CL1 SWITCH OUTPUT 1 (VOUT1) 0.9 x V0UT1 0V SWITCH OUTPUT 2 (VOUT2) CL INCLUDES FIXTURE AND STRAY CAPACITANCE. 0.9 x VOUT2 0V tD tD Figure 2. Break-Before-Make Interval 10 ______________________________________________________________________________________ 4.5 Quad SPST Analog Switches in UCSP tri 90% 50% A TxD+ B INPUT A 10% tskew_i CL Rs INPUT A- 90% 50% 10% tfi tro A- TxDRs Rs = 39 CL = 50pF B- OUTPUT B 10% 90% 50% tskew_o CL OUTPUT B- 90% 50% 10% tfo |tro - tri| DELAY DUE TO SWITCH FOR RISING INPUT AND RISING OUTPUT SIGNALS. |tfo - tfi| DELAY DUE TO SWITCH FOR FALLING INPUT AND FALLING OUTPUT SIGNALS. |tskew_o| CHANGE IN SKEW THROUGH THE SWITCH FOR OUTPUT SIGNALS. |tskew_i| CHANGE IN SKEW THROUGH THE SWITCH FOR INPUT SIGNALS. Figure 3. Input/Output Skew Timing Diagram ______________________________________________________________________________________ 11 MAX4737/MAX4738/MAX4739 Test Circuits/Timing Diagrams (continued) MAX4737/MAX4738/MAX4739 4.5 Quad SPST Analog Switches in UCSP Test Circuits/Timing Diagrams (continued) V+ MAX4737/ MAX4738/ MAX4739 VOUT V+ RGEN VOUT COM_ NC_ OR NO_ VOUT IN OFF CL V GEN GND OFF ON IN_ VIL TO VIH IN ON OFF OFF Q = (V OUT )(C L ) LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. Figure 4. Charge Injection V+ C = 0.1F C = 0.1F SIGNAL GENERATOR 0dBm V+ MAX4737/ MAX4738/ MAX4739 NC_ or NO_ 50* SIGNAL GENERATOR 0dBm V+ NO1 COM1 0V TO V+ COM_ GND 50 IN1 0V OR V+ IN_ ANALYZER MAX4737/ MAX4738/ MAX4739 V+ ANALYZER IN2 NO2 COM2 GND 0V OR V+ N.C. *USED ONLY FOR OFF-ISOLATION TEST. Figure 5a. On-Loss and Off-Isolation C = 0.1F Figure 5b. Crosstalk Test Circuit Chip Information V+ TRANSISTOR COUNT: 361 PROCESS: CMOS V+ NC_ or NO_ MAX4737/ MAX4738/ MAX4739 IN_ CAPACITANCE METER 0V OR V+ COM_ f = 1MHz GND Figure 6. Channel Off-/On-Capacitance 12 ______________________________________________________________________________________ 4.5 Quad SPST Analog Switches in UCSP TOP VIEW MAX4737 MAX4739 MAX4738 NO1 1 14 V+ NC1 1 14 V+ NO1 1 14 V+ COM1 2 13 IN1 COM1 2 13 IN1 COM1 2 13 IN1 NO2 3 12 IN4 NC2 3 12 IN4 NC2 3 12 IN4 COM2 4 11 NO4 COM2 4 11 NC4 COM2 4 11 NC4 IN2 5 10 COM4 IN2 5 10 COM4 IN2 5 10 COM4 IN3 6 9 COM3 IN3 6 9 COM3 IN3 6 9 COM3 8 NO3 GND 7 GND 7 8 NC3 GND 7 TSSOP 8 NO3 TSSOP TSSOP IN1 N.C. NO1 V+ IN1 ON OFF V+ NC2, NC4 OFF ON NC1 NO1, NO3 LOW HIGH N.C. INPUT ON OFF IN1 ON SWITCH STATE LOW HIGH V+ HIGH INPUT NO1 SWITCH STATE OFF N.C. INPUT LOW 16 15 14 13 16 15 14 13 16 15 14 13 12 IN4 NO2 2 11 NO4 COM2 3 10 IN2 4 9 1 12 IN4 NC2 2 11 NC4 COM4 COM2 3 10 COM3 IN2 4 9 1 12 IN4 NC2 2 11 NC4 COM4 COM2 3 10 COM4 COM3 IN2 4 9 COM3 5 6 7 8 5 6 7 8 5 6 NO3 N.C. IN3 GND NC3 N.C. IN3 GND MAX4739 GND MAX4738 COM1 IN3 MAX4737 COM1 QFN QFN INPUT LOW SWITCH STATE OFF HIGH ON 7 8 N.C. 1 NO3 COM1 QFN INPUT SWITCH STATE INPUT NO1, NO3 NC2, NC4 LOW HIGH ON OFF LOW HIGH OFF ON ON OFF ______________________________________________________________________________________ 13 MAX4737/MAX4738/MAX4739 Pin Configurations/Functional Diagrams/Truth Tables (continued) 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.) 16L,UCSP.EPS MAX4737/MAX4738/MAX4739 4.5 Quad SPST Analog Switches in UCSP PACKAGE OUTLINE, 4x4 UCSP 21-0101 14 ______________________________________________________________________________________ H 1 1 4.5 Quad SPST Analog Switches in UCSP 24L QFN THIN.EPS PACKAGE OUTLINE 12, 16, 20, 24L THIN QFN, 4x4x0.8mm 21-0139 C 1 2 PACKAGE OUTLINE 12, 16, 20, 24L THIN QFN, 4x4x0.8mm 21-0139 C 2 2 ______________________________________________________________________________________ 15 MAX4737/MAX4738/MAX4739 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.) 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.) TSSOP4.40mm.EPS MAX4737/MAX4738/MAX4739 4.5 Quad SPST Analog Switches in UCSP 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. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.