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MAX4624EUTMAXIMN/a391avai1Ω, Low-Voltage, Single-Supply, SPDT Analog Switches
MAX4624EUT+T |MAX4624EUTTMAXN/a168000avai1Ω, Low-Voltage, Single-Supply, SPDT Analog Switches
MAX4624EUT+T |MAX4624EUTTMAXIMN/a5000avai1Ω, Low-Voltage, Single-Supply, SPDT Analog Switches
MAX4624EUT-TG05 |MAX4624EUTTG05MAXIM N/a118avai1Ω, Low-Voltage, Single-Supply, SPDT Analog Switches
MAX4624EZTMAXIMN/a1350avai1Ω, Low-Voltage, Single-Supply, SPDT Analog Switches
MAX4624EZT+TMAXIMN/a21000avai1Ω, Low-Voltage, Single-Supply, SPDT Analog Switches
MAX4625EUT+TMAXN/a4288avai1Ω, Low-Voltage, Single-Supply, SPDT Analog Switches


MAX4624EUT+T ,1Ω, Low-Voltage, Single-Supply, SPDT Analog SwitchesFeaturesThe MAX4624/MAX4625 are low-on-resistance, low-♦ Low RONvoltage single-pole/double-throw (S ..
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MAX4624EUT-T ,1 / Low-Voltage / Single-Supply SPDT Analog SwitchesELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = +5V ±10%, GND = 0, V = 2.4V, V = 0.8V, T = T to ..
MAX4624EUT-T ,1 / Low-Voltage / Single-Supply SPDT Analog SwitchesFeaturesThe MAX4624/MAX4625 are low-on-resistance, low- Low RONvoltage single-pole/double-throw (S ..
MAX4624EUT-T ,1 / Low-Voltage / Single-Supply SPDT Analog SwitchesApplications Ordering InformationPower RoutingPIN- TOPPART TEMP. RANGEPACKAGE MARKBattery-Operated ..
MAX4624EUT-T ,1 / Low-Voltage / Single-Supply SPDT Analog SwitchesELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)(V+ = +5V ±10%, GND = 0, V = 2.4V, V = 0.8V ..
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MAX4624EUT-MAX4624EUT+T-MAX4624EUT-TG05-MAX4624EZT-MAX4624EZT+T-MAX4625EUT+T
1Ω, Low-Voltage, Single-Supply, SPDT Analog Switches
General Description
The MAX4624/MAX4625 are low-on-resistance, low-
voltage single-pole/double-throw (SPDT) analog switch-
es 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 1Ωmax on-resistance (RON), with 0.12Ω
max RONmatching and flatness. The digital logic
inputs are TTL compatible when using a single +5V
supply. These switches also feature overcurrent protec-
tion to prevent damage from short circuits and exces-
sive loads.
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.
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
Features
Low RONmax (+5V Supply)max (+3V Supply)0.12Ωmax RONFlatness (+5V Supply)Overcurrent Protection+1.8V to +5.5V Single-Supply OperationAvailable in SOT23 PackagesFast Switching: tON= 50ns max, tOFF= 50ns maxTTL-Logic Compatible (+5V Supply)Pin Compatible with MAX4544Guaranteed Break-Before-Make (MAX4624)Guaranteed Make-Before-Break (MAX4625)
MAX4624/MAX4625
1Ω, Low-Voltage, Single-Supply
SPDT Analog Switches

TOP VIEW
COMGND
MAX4624/MAX4625
SOT23-6
LOGICNC

OFF
OFF
SWITCHES SHOWN
FOR LOGIC “0” INPUT
19-1592; Rev 2; 5/01
PART
MAX4624EUT-T

MAX4624EZT-T-40°C to +85°C
-40°C to +85°C
TEMP. RANGEPIN-
PACKAGE

6 SOT23-6
6 SOT23-6*
Pin Configuration/
Functional Diagram/Truth Table
Ordering Information
TOP
MARK

AADL
AAAE
MAX4625EUT-T
-40°C to +85°C6 SOT23-6AADM
MAX4625EZT-T-40°C to +85°C6 SOT23-6*AAAF
*Thin SOT (1.0mm height) package. Recommended for new
designs.
MAX4624/MAX4625
1Ω, Low-Voltage, Single-Supply
SPDT Analog Switches
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +5V ±10%, GND = 0, VINH= 2.4V, VINL= 0.8V, TA= TMINto TMAX, unless otherwise noted.) (Notes 2, 3)
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.
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.
PARAMETERSYMBOLMINTYPMAXUNITS

Analog Signal RangeVCOM, VNO,
VNC0V+V
0.651On-ResistanceRONV+ = 4.5V, VNOor
VNC= 3.5V, ICOM = 100mA= +25°C
1.2Ω
0.060.12On-Resistance Match Between
Channels (Note 4)ΔRONV+ = 4.5V, ICOM= 100mA,
VNOor VNC= 3.5V= +25°C
0.15Ω
0.080.12On-Resistance Flatness
(Note 5)RFLAT(ON)V+ = 4.5V; ICOM= 100mA;
VNOor VNC= 0, 1V, 2V= +25°C
0.15Ω0.012NO or NC Off-Leakage
Current
INO(OFF),
INC(OFF)
V+ = 5.5V; VCOM= 1V, 4.5V;
VNOor VNC= 4.5V, 1V= +25°C
-2020nA
COM On-Leakage
Current
V+ = 5.5V; VCOM= 1V, 4.5V;
VNOor VNC= 1V, 4.5V, or
floating0.34
ICOM(ON)= +25°C
Overcurrent-Protection
Current Threshold 1.2A= +25°C4050Turn-On TimetONVNOor VNC= 3V, Figure 2TA= TMINto TMAX60ns= +25°C4050Turn-Off TimetOFFVNOor VNC= 3V, Figure 2TA= TMINto TMAX60ns
Break-Before-Make Delay
(Note 6)tBBMMAX4624 only, Figure 3a120nsMake-Before-Break Delay
(Note 6)tMBBMAX4625 only, Figure 3b1ns= TMINto TMAX= TMINto TMAX= TMINto TMAX= TMINto TMAX
CONDITIONS

DYNAMIC
ANALOG SWITCH
= TMINto TMAX= +25°C= +25°C= TMINto TMAX= +25°C= TMINto TMAX
MAX4624/MAX4625
1Ω, Low-Voltage, Single-Supply
SPDT Analog Switches
PARAMETERSYMBOLMINTYPMAXUNITSCONDITIONS

Off-Isolation (Note 7)OIRRRL= 50Ω, CL= 5pF, f = 1MHz, TA= +25°C,
Figure 5-57dB
Crosstalk (Note 8)RL= 50Ω, CL= 5pF, f = 1MHz, TA= +25°C,
Figure 5-57dB
NC or NO Off-CapacitanceCOFFf = 1MHz, TA= +25°C, Figure 632pF
COM On-CapacitanceCCOM(ON)f = 1MHz, TA= +25°C, Figure 6100pF
Input Voltage LowVINL0.8V
Input Voltage HighVINH2.4V
Logic Input CurrentIIN-11µA
Power-Supply RangeV+1.85.5V
Positive Supply CurrentI+V+ = 5.5V, VIN= 0 or V+10µA
ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = +2.7V to +3.6V, GND = 0, VINH= 2.0V, VINL= 0.6V, TA= TMINto TMAX, unless otherwise noted.) (Notes 2, 3) 0V+VCOM, VNO,
VNCAnalog Signal Range
CONDITIONSUNITSMINTYPMAXSYMBOLPARAMETER
6580
VNOor VNC= 1.5V,
Figure 2tONTurn-On Time6280
VNOor VNC= 1.5V,
Figure 2tOFFTurn-Off Time= +25°C= TMINto TMAX= +25°C= TMINto TMAX140tBBMBreak-Before-Make Time
Delay (Note 4)18tMBBMake-Before-Break Time
Delay (Note 4)40QCharge Injection
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)

(V+ = +5V ±10%, GND = 0, VINH= 2.4V, VINL= 0.8V, TA= TMINto TMAX, unless otherwise noted.) (Notes 2, 3)
Charge InjectionCL= 1.0nF, VGEN= 0, RGEN= 0, TA= +25°C,
Figure 4Q65
2.5Ω
1.22.0V+ = 2.7V,
VNOor VNC= 1.5V,
ICOM= 100mA
RONOn-Resistance= +25°C= TMINto TMAX
MAX4624 only, Figure 3a
MAX4625 only, Figure 3b= 1.0nF, Figure 4, VGEN= 0,
RGEN= 0, TA= +25°C
SUPPLY
LOGIC INPUT

0.25ΩV+ = 2.7V; ICOM= 100mA; VNOor VNC= 0,
0.75V, 1.5V; TA= +25°CRFLAT(ON)On-Resistance Flatness
(Note 6)
ANALOG SWITCH
DYNAMIC
MAX4624/MAX4625
1Ω, Low-Voltage, Single-Supply
SPDT Analog Switches
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)

(V+ = +2.7V to +3.6V, GND = 0, VINH= 2.0V, VINL= 0.6V, TA= TMINto TMAX, unless otherwise noted.) (Notes 2, 3)
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:
ΔRON= 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/ (VNCor VNO)], VCOM= output, VNCor VNO= input to off switch.
Note 8:
Between the two switches.2.0VINHInput Voltage High0.6VINLInput Voltage Low
CONDITIONSUNITSMINTYPMAXSYMBOLPARAMETER
10V+ = 3.6V, VIN= 0 or V+I+Positive Supply Current-11IINLogic Input Current
LOGIC INPUT
SUPPLY
__________________________________________Typical Operating Characteristics

(TA= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. COM VOLTAGE
OVER SUPPLY VOLTAGE
MAX4624 toc01
VCOM (V)
VCOM = 100mA
+2.0V
+2.3V
+2.5V
+3.0V
+5V
+1.8V
ON-RESISTANCE vs. COM VOLTAGE
OVER TEMPERATURE
MAX4624 toc02
VCOM (V)
TA = +85°CTA = +105°C
TA = +25°C
TA = -40°C
TA = -55°C
V+ = 5V
ICOM = 100mA
tON
tOFF
TURN-ON/OFF TIMES
vs. SUPPLY VOLTAGE
MAX4624 toc03
VSUPPLY (V)
tON
OFF
(ns)
MAX4624/MAX4625
1Ω, Low-Voltage, Single-Supply
SPDT Analog Switches

TURN-ON/OFF TIMES vs. TEMPERATURE
MAX4624TOC4
TEMPERATURE (°C)
tON
OFF
(ns)
tON
V+ = 5V
VNO or VNC = 3V
tOFF
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4624TOC5
TEMPERATURE (°C)
ON/OFF-LEAKAGE (nA)
CHARGE INJECTION vs. COM VOLTAGE
MAX4624 toc06
VCOM (V)
Q (pC)
MAX4625
MAX4624
30k100k1M10M100M
FREQUENCY RESPONSE

MAX4624 toc07
FREQUENCY (Hz)
LOSS (dB)
PHASE (degrees)
V+ = 5V
50Ω = IN/OUT
OFF-ISOLATION
ON-LOSS
ON-PHASE
LOGIC THRESHOLD VOLTAGE
vs. SUPPLY VOLTAGE
MAX4624 toc08
SUPPLY VOLTAGE (V)
LOGIC THRESHOLD VOLTAGE (V)356
VIN RISING
VIN FALLING
0.0011001k10k100k
TOTAL HARMONIC DISTORTION
vs. FREQUENCY

MAX4624 toc09
FRQUENCY (Hz)
THD (%)0.01
1.5A
3.3V
MAX4624 toc10
1ms/div
OVERCURRENT RESPONSE

VCOM
2V/div
ICOM
1A/div
_____________________________Typical Operating Characteristics (continued)

(TA= +25°C, unless otherwise noted.)
MAX4624/MAX4625
1Ω, Low-Voltage, Single-Supply
SPDT Analog Switches
Pin Description
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 1Ωmax RON
allows high continuous currents to be switched in a
variety of applications. In an overcurrent condition,
these switches provide both current-limit and thermal-
shutdown 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
over time, so current limiting will not activate when the
switch output charges a small 0.1µF capacitor. For sus-
tained 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 out-
put. 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 rat-
ings 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 <20mA, add
Analog Switch—CommonCOM5
Analog Switch—Normally OpenNO6
Analog Switch—Normally ClosedNC4
GroundGND3
PIN

Positive Supply Voltage InputV+2
Digital Control InputIN1
FUNCTIONNAME

POSITIVE SUPPLY
COMNO
GND
MAX4624
MAX4625
Figure 1. Overvoltage Protection Using Two External Blocking
DiodesRail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
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