High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644 single-p

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High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644 single-p

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19-1657; 3/00
High-Speed, Low-Voltage, SPDT CMOS Analog Switch
MAX4644 single-pole/double-throw (SPDT) switch that operates from single supply ranging from +1.8V +5.5V. provides on-resistance (RON) well flatness over entire analog signal range. MAX4644 offers fast switching times less than 20ns while ensuring break-before-make operation. typically consumes only 0.01µW quiescent power, making suitable low-power, portable applications. MAX4644's features include leakage currents over entire temperature range, TTL/CMOS-compatible digital logic, excellent characteristics. packaged either small 8-pin µMAX tiny 6-pin SOT23.
Features
+1.8V +5.5V Single-Supply Operation Rail-to-Rail® Analog Signal Range Guaranteed (+5V supply) (+3V supply) +1.8V Operation Over Temperature 18ns typ, tOFF 12ns Guaranteed Flatness: 0.75 (+5V supply) Guaranteed Match Between Channels: (+5V supply) Leakage (<0.35nA) Over Entire Temperature Range Excellent Characteristics Crosstalk: -82dB 1MHz High Off-Isolation: -80dB 1MHz 0.018% Total Harmonic Distortion Power Consumption: 0.01µW
MAX4644
_Applications
Battery-Operated Equipment Audio Video Signal Routing Low-Voltage Data-Acquisition Systems Sample-and-Hold Circuits Communications Circuits
Ordering Information
PART MAX4644EUT-T MAX4644EUA TEMP. RANGE -40°C +85°C -40°C +85°C PINPACKAGE SOT23-6 µMAX MARK AAHQ
Rail-to-Rail trademark Nippon Motorola, Ltd.
Configurations/Functional Diagrams/Truth Table
VIEW MAX4644
MAX4644
N.C. N.C.
SOT23-6
µMAX
MAX4644
Maxim Integrated Products
free samples latest literature, visit www.maxim-ic.com phone 1-800-998-8800. small orders, phone 1-800-835-8769.
High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced .-0.3V COM, (Note .-0.3V 0.3V) Continuous Current (any terminal).±20mA Continuous Current (NO, COM) .±50mA Peak Current (NO, COM, pulsed 1ms, duty cycle). ±100mA Continuous Power Dissipation +70°C) 6-Pin SOT23 (derate 8.70mW/°C above +70°C). 696mW 8-Pin µMAX (derate 4.5mW/°C above +70°C) 362mW Operating Temperature Range .-40°C +85°C Junction Temperature .+150°C Storage Temperature Range .-65°C +150°C Lead Temperature (soldering, 10s) +300°C
Note Signals COM, exceeding clamped internal diodes. Limit forward-diode current maximum current rating.
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
ELECTRICAL CHARACTERISTICS-Single Supply
+4.5V +5.5V, VINH 2.4V, VINL 0.8V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER ANALOG SWITCH Analog Signal Range VCOM, VNO, 4.5V, ICOM 10mA, 4.5V, ICOM 10mA, 4.5V, ICOM 10mA, 5.5V, VCOM 4.5V, 4.5V 5.5V, VCOM 4.5V, 4.5V 5.5V, VCOM 4.5V +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX -0.25 -0.35 -0.25 -0.35 -0.25 -0.35 0.8V 2.4V -0.1 0.005 0.01 0.01 0.01 0.75 0.25 0.35 0.25 0.35 0.25 0.35 SYMBOL CONDITIONS UNITS
4.75
On-Resistance
On-Resistance Match Between Channels (Note
On-Resistance Flatness (Note
RFLAT
Off-Leakage Current (Note
INO(OFF), INC(OFF)
Off-Leakage Current (Note On-Leakage Current (Notes DIGITAL INPUTS INPUTS Input Logic High Input Logic Input Current
ICOM(OFF)
ICOM(ON)
High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644
ELECTRICAL CHARACTERISTICS -Single Supply (continued)
+4.5V +5.5V, VINH 2.4V, VINL 0.8V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER DYNAMIC Turn-On Time (Note 300; 35pF; VNO, Figure 300; 35pF; VNO, Figure 300; 35pF; +3V; Figure +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX 10MHz 1MHz 10MHz 1MHz 0.018 0.001 SYMBOL CONDITIONS UNITS
Turn-Off Time (Note
tOFF
Break-Before-Make (Note Charge Injection Off-Capacitance Switch On-Capacitance Off-Isolation (Note Crosstalk (Note Total Harmonic Distortion SUPPLY Positive Supply Current
tBBM CNO(OFF), CNC(OFF) C(ON) VISO
VGEN RGEN 1nF, Figure GND, 1MHz, Figure 1MHz, Figure 5pF, Figure 5pF, Figure
600, 0.5Vp-p, 20Hz 20kHz 5.5V,
ELECTRICAL CHARACTERISTICS-Single Supply
+2.7V +3.3V, VINH 2.0V, VINL 0.4V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER ANALOG SWITCH Analog Signal Range VCOM, VNO, 2.7V, ICOM 10mA, 2.7V, ICOM 10mA, 2.7V, ICOM 10mA, +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX SYMBOL CONDITIONS UNITS
On-Resistance
On-Resistance Match Between Channels (Note On-Resistance Flatness (Note
RFLAT
High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644
ELECTRICAL CHARACTERISTICS-Single Supply (continued)
+2.7V +3.3V, VINH 2.0V, VINL 0.4V, TMIN TMAX, unless otherwise noted. Typical values +25°C.) PARAMETER DIGITAL INPUTS Input Logic High Input Logic Input Current DYNAMIC Turn-On Time (Note 300; 35pF; VNO, Figure 300; 35pF; VNO, Figure 300; 35pF; VNO, Figure +25°C TMIN TMAX +25°C TMIN TMAX +25°C TMIN TMAX 10MHz 1MHz 10MHz 1MHz 0.001 0.4V 2.0V -0.1 0.005 SYMBOL CONDITIONS UNITS
Turn-Off Time (Note
tOFF
Break-Before-Make (Note Charge Injection Off-Capacitance Switch On-Capacitance Off-Isolation (Note Crosstalk (Note SUPPLY Positive Supply Current
tBBM CNO(OFF), CNC(OFF) C(ON) VISO
VGEN RGEN 1nF, Figure GND, 1MHz, Figure 1MHz, Figure 5pF, Figure 5pF, Figure
3.3V,
Note RON(MAX) RON(MIN). Note flatness defined difference between maximum minimum value on-resistance measured over specified analog signal range. Note Guaranteed design. Note On-Leakage performed with voltage applied COM, with left floating. Note Off-Isolation 20log10 VI), where VCOM either from network analyzer. Note Crosstalk measured between switches.
High-Speed, Low-Voltage, SPDT CMOS Analog Switch
Typical Operating Characteristics
+3V, VINH VINL GND, +25°C, unless otherwise noted.)
MAX4644
ON-RESISTANCE VCOM
MAX4644-01
ON-RESISTANCE TEMPERATURE
ICOM 10mA
MAX4644-02
ON-/OFF-LEAKAGE CURRENT TEMPERATURE
MAX4644-03
ICOM 10mA
1000
1.8V
LEAKAGE (pA)
OFF-LEAKAGE
2.5V
ON-LEAKAGE
VCOM
TEMPERATURE (°C)
TEMPERATURE (°C)
CHARGE INJECTION VCOM
MAX4644-04
SUPPLY CURRENT SUPPLY VOLTAGE
MAX4644-05
SUPPLY CURRENT TEMPERATURE
MAX4644-06
CHARGE INJECTION (pC)
SUPPLY CURRENT (nA)
SUPPLY CURRENT (nA)
1.8V
VCOM
SUPPLY VOLTAGE
TEMPERATURE (°C)
LOGIC THRESHOLD SUPPLY VOLTAGE
MAX4644-07
SWITCHING TIMES SUPPLY VOLTAGE
MAX4644-08
SWITCHING TIMES TEMPERATURE
MAX4644-09
SWITCHING TIMES (ns)
LOGIC THRESHOLD
SWITCHING TIMES (ns)
tOFF
tOFF
SUPPLY VOLTAGE
SUPPLY VOLTAGE
TEMPERATURE (°C)
High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644
Typical Operating Characteristics (continued)
+3V, VINH VINL GND, +25°C, unless otherwise noted.)
FREQUENCY RESPONSE
MAX4644-10
TOTAL HARMONIC DISTORTION FREQUENCY
MAX4644-11
0.01 ON-LOSS OFF-ISOLATION
0.05
0.04
1000
(dB/div)
0.03
0.02
0.01
0.01
FREQUENCY (kHz)
FREQUENCY (MHz)
Description
MAX4644 NAME SOT23 µMAX N.C. Logic-Controlled Input Positive Supply Voltage Input. Bypass with 0.1µF capacitor GND. Ground Connection. internally connected. Analog Switch Normally Closed Terminal Analog Switch Common Terminal Analog Switch Normally Open Terminal FUNCTION
Note: switches bidirectional, which means that signal passed through either side switch. However, typical off-capacitances differ shown Electrical Characteristics.
High-Speed, Low-Voltage, SPDT CMOS Analog Switch
Figure Overvoltage Protection Using External Blocking Diodes
Applications Information
MAX4644 operates from single supply ranging from +1.8V +5.5V. device guaranteed functional over that supply range, TTL/CMOS compatibility only valid operation using supply. voltage levels referenced GND. Positive negative analog inputs signals accommodated shifting GND.
ESD-protection diodes internally connected between each analog-signal both GND. these diodes conducts analog signal exceeds (Figure Virtually analog leakage current comes from diodes GND. Although diodes given signal identical, therefore fairly well balanced, they reverse biased differently. Each biased either analog signal. This means their leakages will vary signal varies. difference diode leakages pins constitutes analog-signal-path leakage current. analog leakage current flows between each supply terminals, other switch terminal. This both sides given switch show leakage currents same opposite polarity. There normal current path between analogsignal paths GND. also power internal logic logic-level translators. logiclevel translators convert logic level into switched signals drive analog signal gates.
MAX4644
Chip Information
TRANSISTOR COUNT:
High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644
0.5V 35pF VCOM VCOM tOFF
OPEN
MAX4644
0.5V VCOM 35pF VCOM tOFF
OPEN
MAX4644
0.5V VCOM 35pF tBBM tBBM tON(NC) tOFF(NO) tBBM tON(NO) tOFF(NC) tBBM VCOM
MAX4644
Figure Switching Times
High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644
0.1µF NETWORK ANALYZER
MAX4644
VOUT
MEAS
MEASUREMENTS STANDARDIZED AGAINST SHORT SOCKET TERMINALS. OFF-ISOLATION MEASURED BETWEEN "OFF" TERMINAL EACH SWITCH. ON-LOSS MEASURED BETWEEN "ON" TERMINAL EACH SWITCH. SIGNAL DIRECTION THROUGH SWITCH REVERSED; WORST VALUES RECORDED.
OFF-ISOLATION 20log
VOUT
ON-LOSS 20log
Figure Off-Isolation On-Loss
MAX4644
VOUT 1000pF
REQUIRED
MAX4644
1MHz CAPACITANCE ANALYZER
Figure Capacitance
VOUT
VOUT
VOUT MEASURED VOLTAGE CHARGE TRANSFER ERROR WHEN CHANNEL TURNS OFF. VOUT
Figure Charge Injection
High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644
Package Information
6LSOT.EPS
High-Speed, Low-Voltage, SPDT CMOS Analog Switch
Package Information (continued)
8LUMAXD.EPS
MAX4644
High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644
NOTES
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2000 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.

High-Speed, Low-Voltage, SPDT CMOS Analog Switch MAX4644 single-p

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