19-1136; Rev 3; 10/01 Quad, Low-Voltage, SPST Analog Switches The MAX4521/MAX4522/MAX4523 are quad, low-voltage, single-pole/single-throw (SPST) analog switches. On-resistance (100Ω max) is matched between switches to 4Ω max, and is flat (12Ω max) over the specified signal range. Each switch can handle Rail-to-Rail® analog signals. The off-leakage current is only 1nA at +25°C and 10nA at +85°C. The MAX4521 has four normally closed (NC) switches, and the MAX4522 has four normally open (NO) switches. The MAX4523 has two NC switches and two NO switches. These CMOS switches can operate with dual power supplies ranging from ±2V to ±6V or a single supply between +2V and +12V. They are fully specified for single +2.7V operation. Features ♦ +2V to +12V Single Supply ±2V to ±6V Dual Supplies ♦ 100Ω Signal Paths with ±5V Supplies ♦ Low Power Consumption, <1µW ♦ 4 Separately Controlled SPST Switches ♦ Rail-to-Rail Signal Handling ♦ Pin Compatible with Industry-Standard DG211/DG212/DG213 ♦ >2kV ESD Protection per Method 3015.7 ♦ TTL/CMOS-Compatible Inputs with ±5V or Single +5V Supply All digital inputs have +0.8V and +2.4V logic thresholds, ensuring TTL/CMOS-logic compatibility when using ±5V or a single +5V supply. Ordering Information PART Applications Battery-Operated Equipment TEMP. RANGE MAX4521CPE PIN-PACKAGE 0°C to +70°C 16 Plastic DIP MAX4521CSE 0°C to +70°C 16 Narrow SO MAX4521CEE 0°C to +70°C 16 QSOP MAX4521CUE 0°C to +70°C 16 TSSOP MAX4521CGE 0°C to +70°C 16 QFN MAX4521C/D 0°C to +70°C Dice* Ordering Information continued at end of data sheet. *Contact factory for dice specifications. Data Acquisition Test Equipment Avionics Audio Signal Routing Networking Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. Pin Configurations continued at end of data sheet. Pin Configurations/Functional Diagrams/Truth Tables TOP VIEW IN1 1 16 IN2 COM1 2 15 COM2 NC1 3 14 NC2 V- 4 13 V+ MAX4521 GND 5 NC4 6 IN4 8 COM1 14 NO2 V- 4 GND 5 NO4 IN3 15 COM2 NO1 3 11 NC3 9 16 IN2 2 12 N.C. 10 COM3 COM4 7 IN1 1 13 V+ MAX4522 6 IN3 DIP/SO/QSOP/TSSOP MAX4521 LOGIC SWITCH MAX4522 LOGIC SWITCH ON OFF N.C. = NOT CONNECTED 0 1 OFF ON 14 NC2 V- 4 NO4 6 9 15 COM2 NO1 3 GND 5 DIP/SO/QSOP/TSSOP 0 1 COM1 11 NO3 IN4 8 16 IN2 2 12 N.C. 10 COM3 COM4 7 IN1 1 13 V+ MAX4523 12 N.C. 11 NC3 10 COM3 COM4 7 9 IN4 8 IN3 DIP/SO/QSOP/TSSOP LOGIC 0 1 MAX4523 SWITCHES 1, 4 SWITCHES 2, 3 OFF ON ON OFF 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 MAX4521/MAX4522/MAX4523 General Description MAX4521/MAX4522/MAX4523 Quad, Low-Voltage, SPST Analog Switches ABSOLUTE MAXIMUM RATINGS Voltages Referenced to GND V+.....................................................................-0.3V to +13.0V V- .....................................................................-13.0V to +0.3V V+ to V- ............................................................-0.3V to +13.0V All Other Pins (Note 1) ..........................(V- - 0.3V) to (V+ + 0.3V) Continuous Current into Any Terminal..............................±10mA Peak Current into Any Terminal (pulsed at 1ms,10% duty cycle)...................................±20mA ESD per Method 3015.7 ..................................................>2000V Continuous Power Dissipation (TA = +70°C) (Note 2) Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW Narrow SO (derate 8.70mW/°C above +70°C) ............696mW QSOP (derate 9.52mW/°C above +70°C) ....................762mW CERDIP (derate 10.00mW/°C above +70°C) ...............800mW TSSOP (derate 6.7mW/°C above +70°C) ....................457mW QFN (derate 16.9mW/°C above +70°C) ....................1349mW Operating Temperature Ranges MAX452_C_E ......................................................0°C to +70°C MAX452_E_E ...................................................-40°C to +85°C MAX452_MJE ................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Note 1: Signals on NC_, NO_, COM_, or IN_ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maximum current rating. Note 2: All leads are soldered or welded to PC boards. 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—Dual Supplies (V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS TA MIN TYP (Note 3) MAX UNITS ANALOG SWITCH Analog Signal Range VCOM_, VNO_, VNC_ (Note 4) C, E, M RON V+ = 5V, V- = -5V, VCOM_ = ±3V, ICOM_ = 1mA C, E, M ∆RON V+ = 5V, V- = -5V, VCOM_ = ±3V, ICOM_ = 1mA COM_ to NO_, COM_ to NC_ On-Resistance Flatness (Note 6) RFLAT(ON) V+ = 5V, V- = -5V, VCOM_ = ±3V, ICOM_ = 1mA NO_, NC_ Off-Leakage Current (Note 7) INO_(OFF), INC_(OFF) V+ = 5.5V, V- = -5.5V, ± VCOM_ = 4.5V, VN_ = ±4.5V COM_ to NO_, COM_ to NC_ On-Resistance COM_ to NO_, COM_ to NC_ On-Resistance Match Between Channels (Note 5) COM_ Off-Leakage Current (Note 7) COM_ On-Leakage Current (Note 7) 2 ICOM_(OFF) ICOM_(ON) V+ = 5.5V, V- = -5.5V, ± VCOM_ = ±4.5V, VN_ = 4.5V V+ = 5.5V, V- = -5.5V, VCOM_ = ±4.5V V- +25°C 65 V+ V 100 Ω 125 +25°C 1 C, E, M 4 6 +25°C 7 C, E, M 12 15 +25°C -1 C, E -10 0.01 Ω Ω 1 10 M -100 +25°C -1 C, E -10 10 M -100 100 +25°C -2 nA 100 0.01 0.01 1 2 C, E -20 20 M -200 200 _______________________________________________________________________________________ nA nA Quad, Low-Voltage, SPST Analog Switches (V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS TA MIN TYP (Note 3) MAX UNITS LOGIC INPUT IN_ Input Logic Threshold High VIN_H C, E, M IN_ Input Logic Threshold Low VIN_L C, E, M 0.8 1.6 VIN_ = 0.8V or 2.4V C, E, M -1 0.03 1 +25°C 45 80 IN_ Input Current Logic High or Low IINH_, IINL_ 1.6 2.4 V V µA SWITCH DYNAMIC CHARACTERISTICS Turn-On Time tON VCOM_ = ±3V, V+ = 4.5V, V- = -4.5V, Figure 1 C, E, M Turn-Off Time tOFF VCOM_ = ±3V, V+ = 4.5V, V- = -4.5V, Figure 1 C, E, M Break-Before-Make Time Delay (MAX4523 only) tBBM VCOM_ = ±3V, V+ = 5.5V, V- = -5.5V, Figure 2 +25°C CL = 1nF, VNO_ = 0, RS = 0Ω, Figure 3 +25°C 1 VNO_ = GND, f = 1MHz, Figure 6 +25°C 2 pF Charge Injection (Note 4) NO_, NC_ Off-Capacitance Q CN_(OFF) 100 +25°C 15 30 40 5 20 ns ns ns 5 pC COM_ Off-Capacitance CCOM_(OFF) VCOM_ = GND, f = 1MHz, Figure 6 +25°C 2 pF COM_ On-Capacitance CCOM_(ON) VCOM_ = VNO_ = GND, f = 1MHz, Figure 7 +25°C 5 pF Off-Isolation (Note 8) VISO RL = 50Ω, CL = 15pF, VN_ = 1VRMS, f = 100kHz, Figure 4 +25°C < -90 dB Channel-to-Channel Crosstalk (Note 9) VCT RL = 50Ω, CL = 15pF, VN_ = 1VRMS, f = 100kHz, Figure 5 +25°C < -90 dB C, E, M +25°C C, E, M +25°C C, E, M POWER SUPPLY Power-Supply Range V+, V- V+ Supply Current I+ V+ = 5.5V, all VIN_ = 0 or V+ V- Supply Current I- V- = -5.5V -6 -1 -1 -1 -1 0.05 0.05 6 1 1 1 1 V µA µA _______________________________________________________________________________________ 3 MAX4521/MAX4522/MAX4523 ELECTRICAL CHARACTERISTICS—Dual Supplies (continued) MAX4521/MAX4522/MAX4523 Quad, Low-Voltage, SPST Analog Switches ELECTRICAL CHARACTERISTICS—Single +5V Supply (V+ = +4.5V to +5.5V, V- = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS TA MIN TYP (Note 3) MAX UNITS ANALOG SWITCH Analog Signal Range COM_ to NO_, COM_ to NC_ On-Resistance VCOM_, VNO_, VNC_ RON (Note 4) C, E, M V+ = 4.5V, VCOM_ = 3.5V, ICOM_ = 1mA C, E, M COM_ to NO_, COM_ to NC_ On-Resistance Match Between Channels (Note 5) ∆RON NO_, NC_ Off-Leakage Current (Notes 7, 10) INO_(OFF), INC_(OFF) V+ = 5.5V; VCOM_ = 1V, 4.5V; VN_ = 4.5V, 1V COM_ Off-Leakage Current (Notes 7, 10) ICOM_(OFF) V+ = 5.5V; VCOM_ = 1V, 4.5V; VN_ = 4.5V, 1V COM_ On-Leakage Current (Notes 7, 10) ICOM_(ON) V+ = 5V, VCOM_ = 3.5V, ICOM_ = 1mA V+ = 5.5V; VCOM_ = 4.5V, 1V 0 +25°C 125 V+ V 200 Ω 250 +25°C 2 C, E, M 8 10 +25°C -1 C, E -10 0.01 10 M -100 100 +25°C -1 0.01 1 nA 1 C, E -10 10 M -100 100 0.01 Ω +25°C -2 C, E, -20 20 M -200 200 nA 2 nA LOGIC INPUT IN_ Input Logic Threshold High VIN_H C, E IN_ Input Logic Threshold Low VIN_L C, E 0.8 1.6 C, E -1 0.03 IN_ Input Current Logic High or Low IINH_, IINL_ VIN_ = 0.8V or 2.4V 1.6 2.4 V V 1 µA SWITCH DYNAMIC CHARACTERISTICS +25°C Turn-On Time tON VCOM_ = 3V, V+ = 4.5V, Figure 1 C, E, M Turn-Off Time tOFF VCOM_ = 3V, V+ = 4.5V, Figure 1 C, E, M Break-Before-Make Time Delay (MAX4523 only) tBBM VCOM_ = 3V, V+ = 5.5V, Figure 2 +25°C Q CL = 1nF, VNO_ = 0, RS = 0Ω, Figure 3 +25°C V+ Supply Current I+ V+ = 5.5V, all VIN_ = 0 or V+ V- Supply Current I- V- = 0 Charge Injection (Note 4) 60 100 150 +25°C 20 50 75 10 30 ns ns ns 1 5 0.05 1 pC POWER SUPPLY 4 +25°C -1 C, E, M -1 +25°C -1 C, E, M -1 1 0.05 _______________________________________________________________________________________ 1 1 µA µA Quad, Low-Voltage, SPST Analog Switches (V+ = +2.7V to +3.6V, V- = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS TA MIN TYP (Note 3) MAX UNITS ANALOG SWITCH Analog Signal Range COM_ to NO_, COM_ to NC_ On-Resistance VCOM_, VNO_, VNC_ RON (Note 4) C, E, M V+ = 2.7V, VCOM_ = 1.0V, ICOM_ = 0.1mA C, E, M 0 +25°C 260 V+ V 500 Ω 600 LOGIC INPUT IN_ Input Logic Threshold High VIN_H C, E IN_ Input Logic Threshold Low VIN_L C, E 0.8 1.6 C, E -1 0.03 1 120 250 IN_ Input Current Logic High or Low IINH_, IINL_ VIN_ = 0.8V or 2.4V 1.6 2.4 V V µA SWITCH DYNAMIC CHARACTERISTICS (Note 4) +25°C Turn-On Time tON VCOM_ = 1.5V, V+ = 2.7V, Figure 1 C, E, M Turn-Off Time tOFF VCOM_ = 1.5V, V+ = 2.7V, Figure 1 C, E, M Break-Before-Make Time Delay (MAX4523 only) tBBM VCOM_ = 1.5V, V+ = 3.6V, Figure 2 +25°C Q CL = 1nF, VNO_ = 0, RS = 0Ω, Figure 3 +25°C V+ Supply Current I+ V+ = 3.6V, all VIN_ = 0 or V+ V- Supply Current I- V- = 0 Charge Injection 300 +25°C 40 80 100 15 50 0.5 ns ns ns 5 pC POWER SUPPLY +25°C -1 C, E, M -1 +25°C -1 C, E, M -1 0.05 1 1 0.05 1 1 µA µA Note 3: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 4: Guaranteed by design. Note 5: ∆RON = ∆RON(MAX) - ∆RON(MIN). Note 6: Resistance flatness is defined as the difference between the maximum and minimum on-resistance values, as measured over the specified analog signal range. Note 7: Leakage parameters are 100% tested at maximum rated temperature, and guaranteed by correlation at TA = +25°C. Note 8: Off-Isolation = 20log10 [ VCOM_ / (VNC_ or VNO_) ], VCOM_ = output, VNC_ or VNO_ = input to off switch. Note 9: Between any two switches. Note 10: Leakage testing for single-supply operation is guaranteed by testing with dual supplies. _______________________________________________________________________________________ 5 MAX4521/MAX4522/MAX4523 ELECTRICAL CHARACTERISTICS—Single +3V Supply Typical Operating Characteristics (V+ = +5V, V- = -5V, GND = 0, TA = +25°C, unless otherwise noted.) 100 80 250 V+ = 3.3V 80 TA = +85°C 70 TA = +25°C 200 150 60 60 V+, V- = 4.0V 40 100 50 TA = 0°C V+, V- = 5.0V 20 40 0 30 V+ = 5.0V 50 TA = -55°C -5 -4 -3 -2 -1 1 0 2 3 4 0 5 -5 -4 -3 -2 -1 0 1 2 3 4 0 5 1 3 2 VCOM (V) VCOM (V) ON-RESISTANCE vs. VCOM AND TEMPERATURE (SINGLE SUPPLY) ON- AND OFF-LEAKAGE CURRENT vs. TEMPERATURE CHARGE INJECTION vs. VCOM ON LEAKAGE TA = +85°C TA = +25°C 120 100 100p 1 Q (pC) LEAKAGE (A) 140 MAX4521/2/3-TOC06 1n 160 2 MAX4521/2/3-TOC05 180 10n MAX4521/2/3-TOC04 TA = +125°C V+ = +5V V- = -5V 0 V+ = +5V V- = 0V 10p TA = 0°C 5 4 VCOM (V) 200 RON (Ω) V+ = 2.7V 300 RON (Ω) RON (Ω) 100 TA = +125°C 90 V+, V- = 3.0V 120 350 MAX4521/2/3-TOC02 V+, V- = 2.0V 140 RON (Ω) 110 MAX4521/2/3-TOC01 180 160 ON-RESISTANCE vs. VCOM (SINGLE SUPPLY) ON-RESISTANCE vs. VCOM AND TEMPERATURE (DUAL SUPPLIES) MAX4521/2/3-TOC03 ON-RESISTANCE vs. VCOM (DUAL SUPPLIES) OFF LEAKAGE -1 1p 80 TA = -55°C 3 2 4 -55 5 -25 0 25 50 75 -5 -4 -3 -2 -1 100 125 0 1 2 VCOM (V) TURN-ON/OFF TIME vs. SUPPLY VOLTAGE TURN-ON/OFF TIME vs. TEMPERATURE POWER-SUPPLY CURRENT vs. TEMPERATURE 100 MAX4521/2/3-TOC07 180 160 90 1 80 0.1 I+ tON, tOFF (ns) 140 120 100 80 tON 60 60 tON 50 40 30 5 0.001 0.0001 0 0 4 I- 10 20 3 0.01 5 tOFF 20 tOFF I+, I- (µA) 70 2 4 TEMPERATURE (°C) 200 40 3 VCOM (V) MAX4521/2/3-TOC09 1 MAX4521/2/3-TOC08 0 6 7 V+ (V) 6 -2 0.1p 60 tON, tOFF (ns) MAX4521/MAX4522/MAX4523 Quad, Low-Voltage, SPST Analog Switches 8 9 10 11 12 0.00001 -55 -25 0 25 50 75 TEMPERATURE (°C) 100 125 -55 -25 0 25 50 75 TEMPERATURE (°C) _______________________________________________________________________________________ 100 125 Quad, Low-Voltage, SPST Analog Switches (V+ = +5V, V- = -5V, GND = 0, TA = +25°C, unless otherwise noted.) TOTAL HARMONIC DISTORTION vs. FREQUENCY -10 -20 5 0 -5 INSERTION LOSS -10 LOSS (dB) THD (%) -30 1 0.1 -40 -50 -20 -60 -25 -70 0.01 -30 ON-PHASE -35 -80 0.001 -15 OFF-ISOLATION 50Ω IN/OUT -40 -90 10 100 1k 10k 100k PHASE (DEGREES) MAX4521/2/3-TOC11 V+ = +5V V- = -5V 600Ω IN AND OUT 10 FREQUENCY RESPONSE 0 MAX4521/2/3-TOC10 100 0.01 0.1 FREQUENCY (Hz) 1 10 100 300 FREQUENCY (MHz) Pin Description PIN MAX4521 MAX4522 NAME MAX4523 FUNCTION TSOP/SO QFN TSOP/SO QFN TSOP/SO QFN 1, 16, 9, 8 15, 14, 7, 6 1, 16, 9, 8 15, 14, 7, 6 1, 16, 9, 8 15, 14, 7, 6 2, 15, 10, 7 16, 13, 8, 5 2, 15, 10, 7 16, 13, 8, 5 2, 15, 10, 7 16, 13, 8, 5 COM1–COM4 Analog Switch Common* Terminals 3, 14, 11, 6 1, 12, 9, 4 — — — — NC1–NC4 Analog Switch Normally Closed Terminals — — 3, 14, 11, 6 1, 12, 9, 4 — — NO1–NO4 Analog Switch Normally Open Terminals — — — — 3, 6 1, 4 NO1, NO4 Analog Switch Normally Open Terminals — — — — 14, 11 12, 9 NC2, NC3 Analog Switch Normally Closed Terminals 4 2 4 2 4 2 V- Negative Analog Supply-Voltage Input. Connect to GND for single supply operation. IN1–1N4 Logic-Control Digital Input 5 3 5 3 5 3 GND Ground. Connect to digital ground. (Analog signals have no ground reference; they are limited to V+ and V-.) 12 10 12 10 12 10 N.C. No Connect. Not internally connected. 13 11 13 11 13 11 V+ Positive Analog and Digital SupplyVoltage Input. Internally connected to substrate. *NO_ (or NC_) and COM_ pins are identical and interchangeable. Either may be considered as an input or output; signals pass equally well in either direction. _______________________________________________________________________________________ 7 MAX4521/MAX4522/MAX4523 Typical Operating Characteristics (continued) MAX4521/MAX4522/MAX4523 Quad, Low-Voltage, SPST Analog Switches Applications Information Power-Supply Considerations Overview The MAX4521/MAX4522/MAX4523 construction is typical of most CMOS analog switches. They have three supply pins: V+, V-, and GND. V+ and V- are used to drive the internal CMOS switches, and they set the limits of the analog voltage on any switch. Reverse ESDprotection diodes are internally connected between each analog-signal pin and both V+ and V-. If any analog signal exceeds V+ or V-, one of these diodes conducts. During normal operation these reverse-biased ESD diodes leak, forming the only current drawn from V+ or V-. Virtually all the analog leakage current is through the ESD diodes. Although the ESD diodes on a given signal pin are identical and therefore fairly well balanced, they are reverse biased differently. Each is biased by either V+ or V- and the analog signal. This means their leakages vary as the signal varies. The difference in the two diode leakages from the signal path to the V+ and V- pins constitutes the analog-signal-path leakage current. All analog leakage current flows to the supply terminals, not to the other switch terminal. This explains how both sides of a given switch can show leakage currents of the same or opposite polarity. There is no connection between the analog-signal paths and GND. The analog-signal paths consist of an N-channel and P-channel MOSFET with their sources and drains paralleled, and their gates driven out of phase to V+ and V- by the logic-level translators. V+ and GND power the internal logic and logic-level translators, and set the input logic thresholds. The logic-level translators convert the logic levels to switched V+ and V- signals to drive the gates of the analog switches. This drive signal is the only connection between the logic supplies and the analog supplies. V+ and V- have ESD-protection diodes to GND. The logic-level inputs and output have ESD protection to V+ and to GND. Increasing V- has no effect on the logic-level thresholds, but it does increase the drive to the P-channel switches, reducing their on-resistance. V- also sets the negative limit of the analog-signal voltage. 8 The logic-level thresholds are CMOS/TTL compatible when V+ = +5V. The threshold increases slightly as V+ is raised, and when V+ reaches +12V, the level threshold is about 3.1V. This is above the TTL output highlevel minimum of 2.8V, but still compatible with CMOS outputs. Bipolar Supplies The MAX4521/MAX4522/MAX4523 operate with bipolar supplies between ±2V and ±6V. The V+ and V- supplies need not be symmetrical, but their sum cannot exceed the absolute maximum rating of 13.0V. Do not connect the MAX4521/MAX4522/MAX4523 V+ to +3V, and then connect the logic-level-input pins to TTL logic-level signals. TTL logic-level outputs in excess of the absolute maximum ratings can damage the part and/or external circuits. Caution: The absolute maximum V+ to V- differential voltage is 13.0V. Typical ±6V or 12V supplies with ±10% tolerances can be as high as 13.2V. This voltage can damage the MAX4521/MAX4522/MAX4523. Even ±5% tolerance supplies may have overshoot or noise spikes that exceed 13.0V. Single Supply The MAX4521/MAX4522/MAX4523 operate from a single supply between +2V and +12V when V- is connected to GND. All of the bipolar precautions must be observed. High-Frequency Performance In 50Ω systems, signal response is reasonably flat up to 50MHz (see Typical Operating Characteristics). Above 20MHz, the on-response has several minor peaks that are highly layout dependent. The problem with high-frequency operation is not turning the switch on, but turning it off. The off-state switch acts like a capacitor and passes higher frequencies with less attenuation. At 10MHz, off-isolation is about -52dB in 50Ω systems, becoming worse (approximately 20dB per decade) as frequency increases. Higher circuit impedances also make off-isolation worse. Adjacent channel attenuation is about 3dB above that of a bare IC socket, and is due entirely to capacitive coupling. _______________________________________________________________________________________ Quad, Low-Voltage, SPST Analog Switches MAX4521 MAX4522 MAX4523 SWITCH INPUT V+ SWITCH OUTPUT V+ NO or NC COM V COM VOUT RL 300Ω IN, EN GND LOGIC INPUT LOGIC INPUT 50% 0 CL 35pF t OFF VOUT VSWITCH OUTPUT V- 0 0 ( 0.9 x V0UT 0.9 x VOUT t ON CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL RL + RON VOUT = VCOM t r < 20ns t f < 20ns +3V LOGIC INPUT WAVEFORMS INVERTED FOR EN AND SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. ) Figure 1. Switching Time V+ MAX4523 VCOM1 VCOM2 V+ COM1 LOGIC INPUT NO VOUT1 NC COM2 RL2 IN1, 2 LOGIC INPUT GND RL1 VOUT2 +3V 50% 0 CL1 SWITCH OUTPUT 1 (VOUT1) CL2 0.9 x V0UT1 0 SWITCH OUTPUT 2 (VOUT2) VV- CL INCLUDES FIXTURE AND STRAY CAPACITANCE. 0.9 x VOUT2 0 RL = 300Ω CL = 35pF tD tD Figure 2. Break-Before-Make Interval (MAX4523 only) MAX4521 MAX4522 MAX4523 V+ ∆VOUT V+ RGEN VOUT COM NC or NO VOUT IN OFF CL V GEN GND IN V- VVIN = +3V IN OFF ON ON OFF OFF Q = (∆V OUT )(C L ) IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. Figure 3. Charge Injection _______________________________________________________________________________________ 9 MAX4521/MAX4522/MAX4523 Test Circuits/Timing Diagrams MAX4521/MAX4522/MAX4523 Quad, Low-Voltage, SPST Analog Switches Test Circuits/Timing Diagrams (continued) SIGNAL GENERATOR 0dBm MAX4521 MAX4522 MAX4523 V+ 10nF COM SIGNAL GENERATOR 0dBm V+ 0 or 2.4V IN MAX4521 MAX4522 MAX4523 V+ 10nF V+ COM1 N01 IN1 IN2 50Ω 0 or 2.4V NC or NO ANALYZER GND GND 10nF RL COM2 N02 ANALYZER V- 0 or 2.4V NC V- 10nF RL V- V- Figure 4. Off-Isolation Figure 5. Crosstalk MAX4521 MAX4522 MAX4523 V+ 10nF MAX4521 MAX4522 MAX4523 V+ 10nF V+ V+ COM COM CAPACITANCE METER 0 or 2.4V IN CAPACITANCE METER f = 1MHz NC or NO GND V- 10nF IN f = 1MHz GND 10 V- V- V- Figure 6. Channel-Off Capacitance 0 or 2.4V NC or NO Figure 7. Channel-On Capacitance ______________________________________________________________________________________ 10nF Quad, Low-Voltage, SPST Analog Switches PART TEMP. RANGE PIN-PACKAGE MAX4521EPE -40°C to +85°C 16 Plastic DIP MAX4521ESE -40°C to +85°C 16 Narrow SO MAX4521EEE -40°C to +85°C 16 QSOP MAX4521EUE -40°C to +85°C 16 TSSOP MAX4521EGE -40°C to +85°C 16 QFN MAX4521MJE MAX4522CPE MAX4522CSE MAX4522CEE MAX4522CUE MAX4522CGE MAX4522C/D MAX4522EPE MAX4522ESE MAX4522EEE MAX4522EUE MAX4522EGE MAX4522MJE MAX4523CPE MAX4523CSE MAX4523CEE MAX4523CUE MAX4523CGE MAX4523C/D MAX4523EPE MAX4523ESE MAX4523EEE MAX4523EUE MAX4523EGE MAX4523MJE -55°C to +125°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C 16 CERDIP** 16 Plastic DIP 16 Narrow SO 16 QSOP 16 TSSOP 16 QFN Dice* 16 Plastic DIP 16 Narrow SO 16 QSOP 16 TSSOP 16 QFN 16 CERDIP** 16 Plastic DIP 16 Narrow SO 16 QSOP 16 TSSOP 16 QFN Dice* 16 Plastic DIP 16 Narrow SO 16 QSOP 16 TSSOP 16 QFN 16 CERDIP** *Contact factory for dice specifications. **Contact factory for availability. Chip Topography "B" GND V- "A" COM4 COM1 IN4 IN1 IN3 IN2 COM2 COM3 0.057" (1.45mm) "C" V+ "D" 0.046" (1.19mm) MAX4521 MAX4522 MAX4523 PIN NAME PIN NAME PIN A NC1 A NO1 A NO1 B NC4 B NO4 B NO4 C NC3 C NO3 C NC3 D NC2 D NO2 D NC2 NAME TRANSISTOR COUNT: 97 SUBSTRATE CONNECTED TO V+ ______________________________________________________________________________________ 11 MAX4521/MAX4522/MAX4523 Ordering Information (continued) Quad, Low-Voltage, SPST Analog Switches MAX4521/MAX4522/MAX4523 Pin Configurations (continued) TOP VIEW COM1 IN1 IN2 COM2 COM1 IN1 IN2 COM2 COM1 IN1 IN2 COM2 16 15 14 13 16 15 14 13 16 15 14 13 NC1 1 12 NC2 NO1 1 12 NO2 V- 2 11 V+ GND 3 V- 2 11 V+ 10 N.C. GND 3 NC4 4 9 NC3 NO4 4 MAX4521 NO1 1 12 NC2 V- 2 11 V+ 10 N.C. GND 3 10 N.C. 9 NO3 NO4 4 9 NC3 MAX4522 MAX4523 5 6 7 8 5 6 7 8 5 6 7 8 COM4 IN4 IN3 COM3 COM4 IN4 IN3 COM3 COM4 IN4 IN3 COM3 QFN QSOP.EPS Package Information 12 ______________________________________________________________________________________ Quad, Low-Voltage, SPST Analog Switches 32L QFN, 3x3x0.85.EPS SOICN.EPS ______________________________________________________________________________________ 13 MAX4521/MAX4522/MAX4523 Package Information (continued) MAX4521/MAX4522/MAX4523 Quad, Low-Voltage, SPST Analog Switches Package Information (continued) 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. 14 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.