MAX323EUA ,Precision, Single-Supply, SPST Analog SwitchesFeaturesThe MAX323/MAX324/MAX325 are precision, dual, ♦ Low On-Resistance (R ), 60Ω max (33Ω typ)ON ..
MAX3241 ,3.0V to 5.5V, Low-Power, Up to 1Mbps, True RS-232 Transceivers Using Four 0.1µF External CapacitorsFeatures♦ For Smaller Packaging:The MAX3222/MAX3232/MAX3237/MAX3241 trans-MAX3228E/MAX3229E: +2.5V ..
MAX3241CAI ,3.0V to 5.5V / Low-Power / up to 1Mbps / True RS-232 Transceivers Using Four 0.1F External CapacitorsFeaturesThe MAX3222/MAX3232/MAX3237/MAX3241 trans- ' Low Supply Current:300µA (MAX3222/MAX3232/MAX3 ..
MAX3241CAI- ,3.0V to 5.5V / Low-Power / up to 1Mbps / True RS-232 Transceivers Using Four 0.1F External Capacitorsapplications. Both these devices featureMAX3222CUP 0°C to +70°C 20 TSSOPa shutdown mode in which al ..
MAX3241CAI+ ,3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232 Transceivers Using Four 0.1µF External CapacitorsELECTRICAL CHARACTERISTICS(V = +3.0V to +5.5V, C1–C4 = 0.1µF (Note 2), T = T to T , unless otherwis ..
MAX3241CAI+T ,3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitorsfeatures a 1µA shutdown modethat reduces power consumption and extends batterylife in portable syst ..
MAX680CPA ,+5V to 10V Voltage ConvertersMAX680/MAX68119-0896; Rev 1; 7/96+5V to ±10V Voltage Converters ________________
MAX680CPA+ ,+5V to ±10V Voltage ConvertersMAX680/MAX68119-0896; Rev 1; 7/96+5V to ±10V Voltage Converters ________________
MAX680CSA ,+5V to 10V Voltage ConvertersFeaturesThe MAX680/MAX681 are monolithic, CMOS, dual' 95% Voltage-Conversion Efficiencycharge-pump ..
MAX680CSA ,+5V to 10V Voltage Convertersapplications includeMAX681CPD 0°C to +70°C 14 Plastic DIPgenerating ±6V from a 3V battery and gener ..
MAX680CSA ,+5V to 10V Voltage ConvertersGeneral Description ________
MAX680CSA ,+5V to 10V Voltage ConvertersMAX680/MAX68119-0896; Rev 1; 7/96+5V to ±10V Voltage Converters ________________
MAX323CSA/T-MAX323CSA+-MAX323CSA+T-MAX323CSA-T-MAX323CUA+-MAX323ESA+-MAX323ESA+T-MAX323ESA-T-MAX323EUA-MAX324CUA+-MAX324CUA+T-MAX324ESA+-MAX325CPA+-MAX325CSA+-MAX325CSA+T-MAX325CUA+-MAX325CUA-T-MAX325ESA+-MAX325EUA+
Precision, Single-Supply, SPST Analog Switches
_______________General DescriptionThe MAX323/MAX324/MAX325 are precision, dual,
SPST analog switches. They are single-supply devices
designed to operate from +2.7V to +16V. The MAX323
has two normally open (NO) switches, and the MAX324
has two normally closed (NC) switches. The MAX325
has one NO and one NC switch. Low power consump-
tion (5μW) makes these parts ideal for battery-powered
equipment. These switches offer low leakage currents
(100pA max) and fast switching speeds (tON= 150ns
max, tOFF= 100ns max).
When powered from a 5V supply, the MAX323 series
offers 2Ωmax matching between channels, 60Ωmax
on-resistance, and 6Ωmax RONflatness.
These switches also offer 5pC max charge injection,
and a minimum of 2000V ESD per Method 3015.7.
For equivalent devices specified for dual-supply opera-
tion, see the MAX320/MAX321/MAX322 data sheet. For
quad versions of the MAX320 series, see MAX391/
MAX392/MAX393 data sheet.
________________________ApplicationsBattery-Operated SystemsSample-and-Hold Circuits
Heads-Up DisplaysGuidance and Control Systems
Audio and Video SwitchingMilitary Radios
Test EquipmentCommunications Systems
+3V, +5V DACs and ADCsPBX, PABX
____________________________FeaturesLow On-Resistance (RON), 60Ωmax (33Ωtyp)RONMatching Between Channels <2ΩRONFlatness <6ΩMaxGuaranteed Charge Injection <5pCSingle-Supply Operation (+2.7V to +16V)Low Power Consumption, <5μWLow Leakage Current Over Temperature,
<2.5nA at +85°CFast Switching: tON<150ns, tOFF<100nsGuaranteed Break-Before-Make (MAX325 only)TTL/CMOS Logic Compatible
______________Ordering Information
Precision, Single-Supply,
SPST Analog Switches
DIP/SO/mMAXIN1
COM2
NC2V-
IN2
COM1
NC1
MAX324
DIP/SO/mMAXIN1
COM2
NC2V-
IN2
COM1
NO1
MAX325
SWITCHES SHOWN FOR LOGIC "0" INPUT
MAX324
LOGICSWITCHOFF
TOP VIEW
DIP/SO/mMAX
MAX323
LOGICSWITCHOFF
MAX325
LOGICSWITCH 1OFF
SWITCH 2OFF
IN1
COM2
NO2V-
IN2
COM1
NO1
MAX323
_____________________Pin Configurations/Functional Diagrams/Truth Tables19-0347; Rev 1; 10/97
Ordering Information continued at end of data sheet.* Contact factory for dice specifications.
** Contact factory for availability.
8 CERDIP**-55°C to +125°CMAX323MJA
8 CERDIP**-40°C to +85°CMAX323EJA
8 SO-40°C to +85°CMAX323ESA
8 Plastic DIP-40°C to +85°CMAX323EPA
Dice*0°C to +70°CMAX323C/D
8 μMAX0°C to +70°CMAX323CUA
8 Plastic DIP0°C to +70°C
MAX323CPA
PIN-PACKAGETEMP. RANGEPART8 SO0°C to +70°CMAX323CSA
Precision, Single-Supply,
SPST Analog SwitchesVoltage Referenced to GND.........................................................................-0.3V to +17V
IN_, COM_, NC_, NO_ (Note 1)..................-0.3V to (V+ + 0.3V)
Continuous Current (any terminal)......................................30mA
Peak Current, COM_, NO_, NC_
(pulsed at 1ms, 10% duty cycle max)............................100mA
ESD per Method 3015.7..................................................>2000V
Continuous Power Dissipation
Plastic DIP (derate 9.09mW/°C above +70°C)..............727mW
Narrow SO (derate 5.88mW/°C above +70°C)..............471mW
CERDIP (derate 8.00mW/°C above +70°C)...................640mW
μMAX (derate 4.10mW/°C above +70°C)......................330mW
Operating Temperature Ranges
MAX32_C_ _.........................................................0°C to +70°C
MAX32_E_ _.......................................................-40°C to +85°C
MAX32_MJA....................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
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.
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = 5V ±10%, GND = 0V, VINH= 2.4V, VINL= 0.8V, TA= TMINto TMAX, unless otherwise noted.)
PARAMETERSYMBOLMINTYPMAX
(Note 2)UNITSAnalog Signal Range
VCOM,
VNO,
VNCV+V
CONDITIONS(Note 3)
On-ResistanceRON60Ω
V+ = 4.5V,
ICOM= 1.0mA,
VNOor VNC= 3.5V= +25°C= +25°C= +25°C= +25°C= +25°C= +25°C= TMINto TMAX= TMINto TMAX= TMINto TMAX
On-Resistance Match
Between Channels (Note 4)ΔRON
0.82Ω
V+ = 5V,
ICOM= 1.0mA,
VNOor VNC= 3V
On-Resistance Flatness
(Notes 3, 5)RFLAT(ON)26Ω
V+ = 5V,
ICOM= 1.0mA,
VNOor VNC= 1V, 2V, 3V
NO or NC Off Leakage
Current (Note 6)
INO(OFF)
INC(OFF)
V+ = 5.5V,
VCOM= 1V,
VNOor VNC= 4.5V
COM Off Leakage Current
(Note 6)ICOM(OFF)
V+ = 5.5V,
VCOM= 4.5V,
VNOor VNC= 1V
COM On Leakage Current
(Note 6)ICOM(ON)
V+ = 5.5V,
VCOM= 5V, or
VNOor VNC= 5V5
-4040= TMIN
to TMAX= TMIN
to TMAX= TMIN
to TMAX
C, E
C, E
C, E
ANALOG SWITCH
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.
Precision, Single-Supply,
SPST Analog Switches
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)(V+ = 5V ±10%, GND = 0V, VINH= 2.4V, VINL= 0.8V, TA= TMINto TMAX, unless otherwise noted.)
PARAMETERSYMBOLMINTYPMAX
(Note 2)UNITSCONDITIONSTurn-On TimetON85150nsVNOorVNC = 3V
Break-Before-Make Time
Delay (Note 3)tD2nsMAX325 only, RL= 300Ω, CL= 35pF
Turn-Off TimetOFF25100nsVNOorVNC = 3V
Power-Supply Range2.716V
Charge Injection
(Note 3)Q15pCCL= 1.0nF, VGEN= 0V,
RGEN= 0V, Figure 4= +25°C= +25°C= TMINto TMAX= TMINto TMAX
150= +25°C
Off Isolation (Note 7)OIRR72dBRL= 50Ω, CL= 5pF,
f = 1MHz, Figure 5TA= +25°C
Crosstalk (Note 8)85dBRL= 50Ω, CL= 5pF,
f = 1MHz, Figure 6TA= +25°C
NC or NO CapacitanceCOFF9pFf = 1MHz, Figure 7TA= +25°C
COM Off CapacitanceCCOM(OFF)9pFf = 1MHz, Figure 7TA= +25°C
COM On CapacitanceCCOM(ON)22pFf = 1MHz, Figure 8TA= +25°C
Input Voltage HighVINH2.4V
Input Voltage LowVINL0.8V
Positive Supply CurrentI+-10.00011μAV+ = 5.5V, VIN= 0V or V+, all channels on or off
DYNAMIC
SUPPLY
LOGIC INPUT
Precision, Single-Supply,
SPST Analog Switches
ELECTRICAL CHARACTERISTICS—Single +3.3V Supply(V+ = 3.0V to 3.6V, GND = 0V, VINH= 2.4V, VINL= 0.6V, TA= TMINto TMAX, unless otherwise noted.)
Note 2:The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in
this data sheet.
Note 3:Guaranteed by design.
Note 4:ΔRON= ΔRONmax - ΔRONmin.
Note 5:Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal range.
Note 6:Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at +25°C.
Note 7:Off Isolation = 20 log10[ VCOM⁄ (VNC or VNO)], VCOM= output, VNC or VNO= input to off switch.
Note 8:Between any two switches.
PARAMETERSYMBOLMINTYPMAX
(Note 2)UNITSAnalog Signal Range
VCOM,
VNO,
VNCV+V
CONDITIONS(Note 3)
Channel On-ResistanceRON175Ω
V+ = 3V,
ICOM= 1.0mA,
VNOor VNC= 1.5V
Turn-On Time (Note 3)tON160400nsVNOor VNC= 1.5V
Break-Before-Make Time
Delay (Note 3)tD25nsMAX325 only,= 300Ω, CL= 35pF
Turn-Off Time (Note 3)tOFF40125nsVNOor VNC= 1.5V
Positive Supply CurrentI+-11μA
Charge Injection (Note 3)Q15pCCL= 1.0nF,
VGEN= 0V, RGEN= 0V
V+ = 3.6V, VIN= 0V or V+, all channels on or off= +25°C= +25°C= +25°C= +25°C= +25°C= TMINto TMAX= TMINto TMAX= TMINto TMAX
ANALOG SWITCH
DYNAMIC
SUPPLY
Precision, Single-Supply,
SPST Analog Switches
__________________________________________Typical Operating Characteristics(TA = +25°C, unless otherwise noted.)2810
RON vs. VCOMAX323-01
VCOM (V)
(W612
A: V+ = 3V
B: V+ = 5V
C: V+ = 12V14
RON vs. VCOM OVER TEMPERATUREMAX323-02
VCOM (V)
(W35
V+ = 5V
A: TA = -55°C
B: TA = +25°C
C: TA = +85°C
D: TA = +125°C2
RON vs. VCOM OVER TEMPERATUREAX323-03
VCOM (V)
(W4
A: TA = -55°C
B: TA = +25°C
C: TA = +85°C
D: TA = +125°C
ON LEAKAGE CURRENT vs. TEMPERATURE
AX323-04
TEMPERATURE (°C)
SUPPLY CURRENT vs. TEMPERATURE
AX323-07
TEMPERATURE (°C)
(n
V+ = 5V
IN1, IN2 = GND OR V+
OFF LEAKAGE CURRENT vs. TEMPERATURE
AX323-05
TEMPERATURE (°C)
(n
V+ = 5.5V
VCOM = 1V
VNC OR VNO = 1V
CHARGE INJECTION vs. VCOMAX323-06
VCOM (V)
(p5
V+ = 5V34
Precision, Single-Supply,
SPST Analog Switches
__________Applications Information
Logic LevelsThe MAX323/MAX324/MAX325 are TTL compatible
when powered from a single +5V supply. When pow-
ered from other supply voltages, TTL compatibility is
not guaranteed, and the logic inputs should be driven
from rail to rail. For example, with a 15V supply, IN1
and IN2 should be driven low to 0V and high to 15V.
Similarly, with a 3.3V supply, IN1 and IN2 should be dri-
ven low to 0V and high to 3.3V
Driving IN1 and IN2 rail-to-rail minimizes power con-
sumption.
Analog Signal LevelsAnalog signals that range over the entire supply voltage
(V+ to GND) can be switched with very little change in
on-resistance over the entire voltage range (see Typical
Operating Characteristics). All the switches are bidirec-
tional, so NO_, NC_, and COM_ pins can be used as
either inputs or outputs.
Power-Supply Sequencing
and Overvoltage ProtectionDo 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 or logic inputs, especially if the analog
or logic signals are not current-limited. If this sequenc-
ing is not possible, and if the analog or logic inputs are
not current-limited to <30mA, add a small-signal diode
(D1) as shown in Figure 1. If the analog signal can dip
below GND, add D2. Adding protection diodes reduces
the analog signal range to a diode-drop (about 0.7V)
below V+ (for D1), and to a diode-drop above ground
(for D2). Leakage is unaffected by adding the diodes.
On-resistance increases by a small amount at low sup-
ply voltages. Maximum supply voltage (V+) must not
exceed 17V.
Adding protection diodes causes the logic thresholds
to be shifted relative to the power-supply rails. This can
be significant when low supply voltages (5V or less) are
used. With a 5V supply, TTL compatibility is not guaran-
teed when protection diodes are added. Driving IN1
and IN2 all the way to the supply rails (i.e. to a diode-
drop higher than the V+ pin, or to a diode-drop lower
than the GND pin) is always acceptable.
Protection diodes D1 and D2 also protect against
some overvoltage situations. With Figure 1’s circuit, if
the supply voltage is below the absolute maximum rat-
ing, and if a fault voltage up to the absolute maximum
rating is applied to an analog signal pin, no damage
will result. For example, with a +5V supply, analog sig-
nals up to ±8V will not damage the circuit of Figure 1.
If only a single fault signal is present, the fault voltage
can rise to +17V or to -12V without damage occurring.
_____________________Pin DescriptionPOSITIVE SUPPLY
COMNO
GNDg
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
Normally Closed Analog Switch Terminal
(MAX324/MAX325)NC2
Normally Open Analog Switch Terminal
(MAX323 only)NO2
GroundGND4
Logic InputsIN2, IN13, 7
PINAnalog Switch Common TerminalCOM1,
COM22, 6
Normally Closed Analog Switch Terminal
(MAX324 only)NC1
Normally Open Analog Switch Terminal
(MAX323/MAX325)NO1
FUNCTIONNAMEPositive SupplyV+8
