MAX4625EUT+TG035

19-1592; Rev 2; 5/01 1Ω, Low-Voltage, Single-Supply SPDT Analog Switches The MAX4624/MAX4625 are pin compatible with the MAX4544 and are available in space-saving standard 6-pin SOT23 packages, as well as the 1.0mm high Thin SOT package. Features ♦ Low RON 1Ω max (+5V Supply) 2Ω max (+3V Supply) ♦ 0.12Ω max RON Flatness (+5V Supply) ♦ Overcurrent Protection ♦ +1.8V to +5.5V Single-Supply Operation ♦ Available in SOT23 Packages ♦ Fast Switching: tON = 50ns max, tOFF = 50ns max ♦ TTL-Logic Compatible (+5V Supply) ♦ Pin Compatible with MAX4544 ♦ Guaranteed Break-Before-Make (MAX4624) ♦ Guaranteed Make-Before-Break (MAX4625) Ordering Information Applications Power Routing Battery-Operated Equipment Audio and Video Signal Routing Low-Voltage Data-Acquisition Systems Communications Circuits PCMCIA Cards Cellular Phones Modems Hard Drives PART TEMP. RANGE PINPACKAGE TOP MARK MAX4624EUT-T -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C 6 SOT23-6 6 SOT23-6* 6 SOT23-6 6 SOT23-6* AADL AAAE AADM AAAF MAX4624EZT-T MAX4625EUT-T MAX4625EZT-T *Thin SOT (1.0mm height) package. Recommended for new designs. Pin Configuration/ Functional Diagram/Truth Table TOP VIEW MAX4624/MAX4625 IN 1 6 NO V+ 2 5 COM GND 3 4 NC SOT23-6 LOGIC NC NO 0 1 ON OFF OFF ON SWITCHES SHOWN FOR LOGIC “0” INPUT ________________________________________________________________ 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 MAX4624/MAX4625 General Description The MAX4624/MAX4625 are low-on-resistance, lowvoltage single-pole/double-throw (SPDT) analog switches that operate from a single +1.8V to +5.5V supply. The MAX4624 has break-before-make switching; the MAX4625 has make-before-break switching. These devices also have fast switching speeds (tON = 50ns max, tOFF = 50ns max). When powered from a +5V supply, the MAX4624/ MAX4625 offer 1Ω max on-resistance (RON), with 0.12Ω max R ON matching and flatness. The digital logic inputs are TTL compatible when using a single +5V supply. These switches also feature overcurrent protection to prevent damage from short circuits and excessive loads. MAX4624/MAX4625 1Ω, Low-Voltage, Single-Supply SPDT Analog Switches ABSOLUTE MAXIMUM RATINGS Voltages Referenced to GND V+, IN ....................................................................-0.3V to +6V COM, NC, NO (Note 1)..............................-0.3V to (V+ + 0.3V) Continuous Current NO, NC to COM..............................±200mA Peak Current NO, NC to COM (pulsed at 1ms, 10% duty cycle max) ........................ ±400mA Continuous Power Dissipation 6-Pin SOT23 (derate 7.1mW/°C above +70°C).............571mW 6-Pin Thin SOT23 (derate 6.25mW/°C above +70°C) ...500mW Operating Temperature Range MAX462_E_T ....................................................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Note 1: Signals on NC, NO, and COM exceeding V+ or GND are clamped by internal diodes. 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 +5V Supply (V+ = +5V ±10%, GND = 0, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V+ V ANALOG SWITCH Analog Signal Range VCOM, VNO, VNC 0 RON V+ = 4.5V, VNO or VNC = 3.5V, ICOM = 100mA TA = +25°C ∆RON V+ = 4.5V, ICOM = 100mA, VNO or VNC = 3.5V TA = +25°C On-Resistance Flatness (Note 5) RFLAT(ON) V+ = 4.5V; ICOM = 100mA; VNO or VNC = 0, 1V, 2V TA = +25°C NO or NC Off-Leakage Current INO(OFF), INC(OFF) V+ = 5.5V; VCOM = 1V, 4.5V; TA = +25°C VNO or VNC = 4.5V, 1V TA = TMIN to TMAX COM On-Leakage Current ICOM(ON) V+ = 5.5V; VCOM = 1V, 4.5V; TA = +25°C VNO or VNC = 1V, 4.5V, or TA = TMIN to TMAX floating On-Resistance On-Resistance Match Between Channels (Note 4) Overcurrent-Protection Current Threshold 0.65 TA = TMIN to TMAX 1 1.2 0.06 TA = TMIN to TMAX 0.12 0.15 0.08 TA = TMIN to TMAX 0.12 0.15 -2 0.01 -20 -4 2 20 0.3 Ω Ω Ω nA 4 nA -40 TA = +25°C 40 1.2 A DYNAMIC Turn-On Time tON VNO or VNC = 3V, Figure 2 Turn-Off Time tOFF VNO or VNC = 3V, Figure 2 Break-Before-Make Delay (Note 6) tBBM MAX4624 only, Figure 3a Make-Before-Break Delay (Note 6) tMBB MAX4625 only, Figure 3b 2 TA = +25°C 40 TA = TMIN to TMAX 50 60 TA = +25°C 40 TA = TMIN to TMAX 50 60 TA = +25°C 1 TA = TMIN to TMAX 1 TA = +25°C 1 TA = TMIN to TMAX 1 20 6 _______________________________________________________________________________________ ns ns ns ns 1Ω, Low-Voltage, Single-Supply SPDT Analog Switches (V+ = +5V ±10%, GND = 0, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.) (Notes 2, 3) PARAMETER Charge Injection SYMBOL COM On-Capacitance TYP MAX UNITS pC RL = 50Ω, CL = 5pF, f = 1MHz, TA = +25°C, Figure 5 -57 dB RL = 50Ω, CL = 5pF, f = 1MHz, TA = +25°C, Figure 5 -57 dB COFF f = 1MHz, TA = +25°C, Figure 6 32 pF CCOM(ON) f = 1MHz, TA = +25°C, Figure 6 100 pF OIRR Crosstalk (Note 8) NC or NO Off-Capacitance MIN 65 Q Off-Isolation (Note 7) CONDITIONS CL = 1.0nF, VGEN = 0, RGEN = 0, TA = +25°C, Figure 4 LOGIC INPUT Input Voltage Low VINL 0.8 V Input Voltage High VINH 2.4 Logic Input Current IIN -1 1 µA 1.8 5.5 V 10 µA MAX UNITS V+ V V SUPPLY Power-Supply Range V+ Positive Supply Current I+ V+ = 5.5V, VIN = 0 or V+ ELECTRICAL CHARACTERISTICS—Single +3V Supply (V+ = +2.7V to +3.6V, GND = 0, VINH = 2.0V, VINL = 0.6V, TA = TMIN to TMAX, unless otherwise noted.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP ANALOG SWITCH Analog Signal Range On-Resistance VCOM, VNO, VNC RON On-Resistance Flatness (Note 6) RFLAT(ON) 0 V+ = 2.7V, VNO or VNC = 1.5V, ICOM = 100mA TA = +25°C 1.2 TA = TMIN to TMAX 2.0 2.5 V+ = 2.7V; ICOM = 100mA; VNO or VNC = 0, 0.75V, 1.5V; TA = +25°C Ω Ω 0.25 DYNAMIC Turn-On Time tON VNO or VNC = 1.5V, Figure 2 TA = +25°C Turn-Off Time tOFF VNO or VNC = 1.5V, Figure 2 TA = +25°C Break-Before-Make Time Delay (Note 4) tBBM MAX4624 only, Figure 3a 1 40 ns Make-Before-Break Time Delay (Note 4) tMBB MAX4625 only, Figure 3b 1 8 ns 40 pC Charge Injection Q 65 TA = TMIN to TMAX 100 62 TA = TMIN to TMAX CL = 1.0nF, Figure 4, VGEN = 0, RGEN = 0, TA = +25°C 80 80 100 ns ns _______________________________________________________________________________________ 3 MAX4624/MAX4625 ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued) ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued) (V+ = +2.7V to +3.6V, GND = 0, VINH = 2.0V, VINL = 0.6V, TA = TMIN to TMAX, unless otherwise noted.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 0.6 V 1 µA 10 µA LOGIC INPUT Input Voltage Low VINL Input Voltage High VINH 2.0 Logic Input Current IIN -1 V SUPPLY Positive Supply Current I+ V+ = 3.6V, VIN = 0 or V+ Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is used in this data sheet. Note 3: SOT-packaged parts are 100% tested at +25°C. Limits across the full temperature range are guaranteed by design and correlation. Note 4: ∆RON = RON(MAX) - RON(MIN). Note 5: Flatness is defined as the difference between the maximum and minimum values of on-resistance as measured over the specified analog signal range. Note 6: Guaranteed by design. Note 7: Off-Isolation = 20log10 [VCOM / (VNC or VNO)], VCOM = output, VNC or VNO = input to off switch. Note 8: Between the two switches. __________________________________________Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) ON-RESISTANCE vs. COM VOLTAGE OVER SUPPLY VOLTAGE +1.8V T = +105°C TA = +85°C A TA = +25°C 120 MAX4624 toc03 1.00 MAX4624 toc02 VCOM = 100mA 5 TURN-ON/OFF TIMES vs. SUPPLY VOLTAGE ON-RESISTANCE vs. COM VOLTAGE OVER TEMPERATURE MAX4624 toc01 6 100 0.75 RON (Ω) +2.0V 3 1 +5V 1 2 60 tON 40 tOFF 20 V+ = 5V ICOM = 100mA 0 0 0 80 0.25 0 3 VCOM (V) 4 0.50 TA = -40°C TA = -55°C +2.3V +2.5V +3.0V 2 tON/tOFF (ns) 4 RON (Ω) MAX4624/MAX4625 1Ω, Low-Voltage, Single-Supply SPDT Analog Switches 4 5 0 1 2 VCOM (V) 3 4 5 2 3 4 VSUPPLY (V) _______________________________________________________________________________________ 5 6 1Ω, Low-Voltage, Single-Supply SPDT Analog Switches ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE tON 20 50 MAX4625 1 0 Q (pC) ON/OFF-LEAKAGE (nA) 30 0.1 MAX4624 -50 -100 0.01 10 -150 tOFF 0.001 0 0 20 40 60 -200 -40 80 -20 0 20 40 60 80 100 0 10 2.5 -30 -20 -40 -30 OFF-ISOLATION -50 -40 -60 -50 -70 -60 V+ = 5V 50Ω = IN/OUT -90 1M 10M PHASE (degrees) -10 LOGIC THRESHOLD VOLTAGE (V) -0 ON-PHASE -80 2.0 5 VIN RISING 1.5 VIN FALLING 1.0 0.5 -70 -80 100M 0 2 3 4 5 FREQUENCY (Hz) SUPPLY VOLTAGE (V) TOTAL HARMONIC DISTORTION vs. FREQUENCY OVERCURRENT RESPONSE MAX4624 toc09 0.1 4 MAX4624 toc08 ON-LOSS -10 3 LOGIC THRESHOLD VOLTAGE vs. SUPPLY VOLTAGE MAX4624 toc07 0 30k 100k 2 VCOM (V) FREQUENCY RESPONSE -20 1 TEMPERATURE (°C) TEMPERATURE (°C) 6 MAX4624 toc10 -20 LOSS (dB) -40 3.3V 0 THD (%) tON/tOFF (ns) 40 100 MAX4624TOC5 V+ = 5V VNO or VNC = 3V CHARGE INJECTION vs. COM VOLTAGE 10 MAX4624TOC4 50 MAX4624 toc06 TURN-ON/OFF TIMES vs. TEMPERATURE VCOM 2V/div 0.01 1.5A ICOM 1A/div 0 0.001 10 100 1k 10k 100k 1ms/div FRQUENCY (Hz) _______________________________________________________________________________________ 5 MAX4624/MAX4625 _____________________________Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) MAX4624/MAX4625 1Ω, Low-Voltage, Single-Supply SPDT Analog Switches Pin Description PIN NAME FUNCTION 1 IN Digital Control Input 2 V+ Positive Supply Voltage Input 3 GND 4 NC 5 COM 6 NO Ground Analog Switch—Normally Closed Analog Switch—Common Analog Switch—Normally Open Detailed Description The MAX4624/MAX4625 are low-on-resistance (RON), low-voltage, single-pole/double-throw (SPDT) analog switches that operate from a +1.8V to +5.5V supply. The MAX4624 has break-before-make switching, and the MAX4625 has make-before-break switching. These devices also have fast switching speeds (tON = 50ns max, tOFF = 50ns max). When powered from a +5V supply, their 1Ω max RON allows high continuous currents to be switched in a variety of applications. In an overcurrent condition, these switches provide both current-limit and thermalshutdown protection. Current-Limit Protection The MAX4624/MAX4625 feature current-limit protection circuitry. When the voltage drop across the on switch reaches 0.6V typ, the internal circuitry activates. The current limit is not instantaneous, but rather integrates POSITIVE SUPPLY D1 V+ MAX4624 MAX4625 NO COM Vg GND D2 Figure 1. Overvoltage Protection Using Two External Blocking Diodes 6 over time, so current limiting will not activate when the switch output charges a small 0.1µF capacitor. For sustained overload conditions, the switch turns off (opens). The switch turns on after 5ms. If the overload persists, the switch cycles off and on to produce a pulsed output. A direct short circuit will be detected immediately, and the switch will pulse on for 1µs, then remain off for 5ms. Applications Information Logic Inputs The MAX4624/MAX4625 logic inputs can be driven up to +5.5V regardless of the supply voltage. For example, with a +3.3V supply, IN may be driven low to 0V and high to 5.5V. Driving IN Rail-to-Rail® minimizes power consumption. Analog Signal Levels Analog signals that range over the entire supply voltage (V+ to GND) can be 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 used as either inputs or outputs. Power-Supply Sequencing and Overvoltage Protection Caution: Do not exceed the absolute maximum ratings because stresses beyond the listed ratings may cause permanent damage to the devices. Proper power-supply sequencing is recommended for all CMOS devices. Always apply V+ before applying analog signals, especially if the analog signal is not current limited. If this sequencing is not possible, and if the analog inputs are not current limited to