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MAX319CSA+ |MAX319CSAMAXIMN/a225avaiPrecision, SPST, CMOS Analog Switches
MAX319EPA+ |MAX319EPAMAXIMN/a1000avaiPrecision, SPST, CMOS Analog Switches
MAX319ESA+ |MAX319ESAMAXIMN/a230avaiPrecision, SPST, CMOS Analog Switches
MAX319ESA+TMAXIMN/a10000avaiPrecision, SPST, CMOS Analog Switches
MAX318ESA+TMAXIMN/a3000avaiPrecision, SPST, CMOS Analog Switches
MAX319CPA+MAXIMN/a5000avaiPrecision, SPST, CMOS Analog Switches
MAX318CSA+ |MAX318CSAMAXIMN/a22avaiPrecision, SPST, CMOS Analog Switches


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MAX3202EETT+ ,Low-Capacitance, 2/3/4/6-Channel, ±15kV ESD-Protection Arrays for High-Speed Data InterfacesMAX3202E/MAX3203E/MAX3204E/MAX3206E19-2739; Rev 1; 5/03Low-Capacitance, 2/3/4/6-Channel, ±15kV ESDP ..
MAX3202EETT+T ,Low-Capacitance, 2/3/4/6-Channel, ±15kV ESD-Protection Arrays for High-Speed Data InterfacesApplications Information section for more information.Note 4: Guaranteed by design. Not production ..
MAX641AEPA ,+5V fixed output, 10W CMOS step-up switching regulator. 5% output accuracy
MAX641BCPA ,+5V fixed output, 10W CMOS step-up switching regulator. 10% output accuracy
MAX641BCSA ,+5V fixed output, 10W CMOS step-up switching regulator. 10% output accuracy
MAX641BCSA ,+5V fixed output, 10W CMOS step-up switching regulator. 10% output accuracy
MAX6420UK26+T ,Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay
MAX6421US26-T ,2.691 V, Low-power, SC70/SOT mP reset circuit with capacitor-adjustable reset timeout delayMAX6340/MAX6421–MAX642619-2440; Rev 2; 10/02Low-Power, SC70/SOT µP Reset Circuits withCapacitor-Adj ..


MAX318CSA+-MAX318ESA+T-MAX319CPA+-MAX319CSA+-MAX319EPA+-MAX319ESA+-MAX319ESA+T
Precision, SPST, CMOS Analog Switches
_______________General Description
The MAX317/MAX318/MAX319 are precision, CMOS,
monolithic analog switches. The single-pole single-
throw (SPST) MAX317 is normally closed (NC), the
SPST MAX318 is normally open (NO), and the single-
pole double-throw (SPDT) MAX319 has one normally
open and one normally closed switch. All three parts
offer low on resistance (less than 35Ω), guaranteed to
match within 2Ωbetween channels and to remain flat
over the analog signal range (Δ3Ωmax). They also
offer low leakage (less than 250pA at +25°C and less
than 6nA at +85°C) and fast switching (turn-on time
less than 175ns and turn-off time less than 145ns).
The MAX317/MAX318/MAX319 are fabricated with
Maxim’s new improved silicon-gate process. Design
improvements guarantee extremely low charge injec-
tion (10pC), low power consumption (35μW), and elec-
trostatic discharge (ESD) greater than ±2000V. The
44V maximum breakdown voltage allows rail-to-rail ana-
log signal handling capability.
________________________Applications

Sample-and-Hold Circuits
Guidance and Control Systems
Heads-Up Displays
Test Equipment
Military Radios
Communications Systems
Battery-Powered Systems
PBX, PABX
____________________________Features
Low On Resistance <20ΩTypical (35ΩMax)Guaranteed Matched On Resistance Between
Channels <2Ω
Guaranteed Flat On Resistance over Analog
Signal Range Δ3ΩMax
Guaranteed Charge Injection <10pCGuaranteed Off-Channel Leakage <6nA at +85°CESD Guaranteed > 2000V per Method 3015.7Single-Supply Operation (+10V to +30V)
Bipolar-Supply Operation (±4.5V to ±20V)
TTL-/CMOS-Logic CompatibleRail-to-Rail Analog Signal Handling Capability
______________Ordering Information
Precision, CMOS Analog Switches
_______________________________________________________________________Maxim Integrated Products1
Call toll free 1-800-998-8800 for free samples or literature.

19-0185; Rev 1; 11/94
Ordering Information continued on last page.

* Contact factory for dice specifications.
_____________________Pin Configurations/Functional Diagrams/Truth Tables

TOP VIEWV+
GND
N.C.
COM
MAX318
DIP/SO
V+
GND
N.C.
COMAX317
DIP/SO
V+
GND
COM
MAX319
DIP/SO

LOGICSWITCH
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
LOGICSWITCH
OFF
LOGICNC
OFF
OFF
MAX317MAX318MAX319
N.C. = No Connect
NC = Normally Closed
PARTTEMP. RANGEPIN-PACKAGE
MAX317CPA
0°C to +70°C8 Plastic DIP
MAX317CSA0°C to +70°C8 SO
MAX317CJA0°C to +70°C8 CERDIP
MAX317C/D0°C to +70°CDice*
MAX317EPA-40°C to +85°C8 Plastic DIP
MAX317ESA-40°C to +85°C8 SO
MAX317EJA-40°C to +85°C8 CERDIP
MAX317MJA-55°C to +125°C8 CERDIP
Precision, CMOS Analog Switches________________________________________________________________________________________________
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+ = 15V, V- = -15V, VL= 5V, GND = 0V, VINL= 0.8V, VINH= 2.4V, TA= TMIN to TMAX, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSTEMP.MINTYPMAXUNITS(Note 2)

Analog-Signal RangeVCOM, (Note 3)-1515VVNO, VNC
VCOM= ±12.5V,2035
On ResistanceRONI(NC or NO)= -10mA,TA= +25°C30Ω
V+ = 13.5V, V- = -13.5VTA= TMINto TMAX45
On Resistance MatchRONTA= +25°C2ΩBetween Channels (Note 4)TA= TMINto TMAX3
On Resistance FlatnessRONTA= +25°C3Ω(Note 4)TA= TMINto TMAX5
INC(OFF)V+ = 16.5V, V- = -16.5V,TA= +25°C-0.250.25
NO or NC Off Leakage CurrentorVCOM= ±15.5V, C, E-66nAINO(OFF)VNC or VNO= –15.5VM-2020
MAX317,= +25°C-0.25-0.10.25
MAX318C, E-66
COM Off Leakage CurrentICOM(OFF)M-2020nA= +25°C-0.75-0.10.75
MAX319C, E-1010-6060
MAX317,= +25°C-0.40.4
MAX318C, E-1010
COM On Leakage CurrentICOM(ON)M-4040nA= +25°C-0.750.75
MAX319C, E-1010-6060
ABSOLUTE MAXIMUM RATINGS

Voltage Referenced to V-
V+....................................................................................+44V
GND................................................................................+25V
VL.................................................(GND - 0.3V) to (V+ + 0.3V)
IN, COM, NC, NO....................(V- - 2V) to (V+ + 2V) or 30mA,
whichever occurs first
Continuous Current (any terminal).....................................30mA
Peak Current, NC, NO, COM
(pulsed at 1ms, 10% duty cycle max)..........................100mA
ESD.................................................................................±2000V
Continuous Power Dissipation (TA= +70°C) (Note 1)
Plastic DIP (derate 9.09mW/°C above +70°C)............727mW
SO (derate 5.88mW/°C above +70°C)........................471mW
CERDIP (derate 8.00mW/°C above +70°C)................640mW
Operating Temperature Ranges:
MAX31_C_ _.......................................................0°C to +70°C
MAX31_E_ _....................................................-40°C to +85°C
MAX31_MJA..................................................-55°C to +125°C
Storage Temperature Range............................-55°C to +150°C
Lead Temperature (soldering, 10sec)............................+300°C
Note 1:
All leads are soldered or welded to PC board.
I(NC OR NO)= -10mA,
VCOM= 10V or -10V,+ = 15V, V- = -15V
I(NC OR NO)= -10mA,
VCOM= 5V or -5V,+ = 15V, V- = -15V
V+ = 16.5V,
V- = -16.5V,
VCOM= ±15.5V,
VNC or VNO= –+15.5V
V+ = 16.5V,
V- = -16.5V,
VNC or VNO= VD=
±15.5V
C, E
Precision, CMOS Analog Switches
_______________________________________________________________________________________3
ELECTRICAL CHARACTERISTICS — Dual Supplies (continued)

(V+ = 15V, V- = -15V, VL= 5V, GND = 0V, VINL= 0.8V, VINH= 2.4V, TA= TMIN to TMAX, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSTEMP.MINTYPMAXUNITS(Note 2)
LOGIC INPUT

Logic Input CurrentIIHVIN= 2.4V-0.50.0050.5μA(Input Voltage High)
Logic Input CurrentIILVIN= 0.8V-0.50.0050.5μA(Input Voltage Low)
DYNAMIC

Turn-On TimetONMAX317, MAX318, Figure 2,TA= +25°C100175nsVCOM= ±10VTA= TMINto TMAX250
Turn-Off TimetOFFMAX317, MAX318, Figure 2,TA= +25°C60145nsVCOM= ±10VTA= TMINto TMAX210
Transition TimetTRANSMAX319, Figure 3,TA= +25°C175nsVNO= ±10V, VNC= –10VTA= TMINto TMAX250
Break-Before-Make IntervaltDMAX319, Figure 4,TA= +25°C513nsVNO= VNC= ±10V
Charge InjectionQVGEN= 0V, Figure 5TA= +25°C310pC
Off Isolation (Note 5)OIRRRL= 50Ω, CL= 5pF,TA= +25°C68dBf = 1MHz, Figure 7
Crosstalk (Note 6)RL= 50Ω, CL= 5pF,TA= +25°C85dBf = 1MHz, Figure 8
COM Off CapacitanceCCOM(OFF)VCOM= 0V, f = 1MHz, Figure 8TA= +25°C8pF
Off Capacitance NC or NOC(OFF)VCOM= 0V, f = 1MHz, Figure 8TA= +25°C8pF
Channel-On CapacitanceVS= 0V, f = 1MHz,MAX317,= +25°C30pFCCOM(ON)Figure 9MAX318COM TerminalMAX31935
SUPPLY

Positive Supply CurrentI+VIN= 0V or 5V, V+ = 16.5V,TA= +25°C-10.00011μA
V- = -16.5VTA= TMINto TMAX-55
Negative Supply CurrentI-VIN= 0V or 5V, V+ = 16.5V,TA= +25°C-1-0.00011μA
V- = -16.5VTA= TMINto TMAX-55
Logic Supply CurrentILVIN= 0V or 5V, V+ = 16.5V,TA= +25°C-10.00011μA
V- = -16.5VTA= TMINto TMAX-55
Ground CurrentIGNDVIN= 0V or 5V, V+ = 16.5V,TA= +25°C-1-0.00011μA
V- = -16.5VTA= TMINto TMAX-55
Precision, CMOS Analog Switches_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS — Single Supply

(V+ = 12V, V- = 0V, VL= 5V, GND = 0V, VINH= 2.4V, VINL= 0.8V, TA= +25°C, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS(Note 2)
SWITCH

Analog-Signal RangeVCOM,(Note 3)012V
VNO, VNC
Drain-Source On ResistanceR(ON)I(NC or NO)= -10mA, VCOM= 3.8V, V+ = 10.8V40100Ω
DYNAMIC

Turn-On TimetONVCOM= 8V, Figure 2110ns
Turn-Off TimetOFFVCOM= 8V, Figure 240ns
Break-Before-MaketDMAX319, RL= 1000Ω, CL= 35pF,60nsTime DelayFigure 4
Charge InjectionQCL= 10nF, VGEN= 0V, RGEN= 0V,210pCFigure 5
SUPPLY

Positive Supply CurrentI+V+ = 13.2V, all channels on or off,0.0001μAVIN= 0V or 5V, VL= 5.25V
Negative Supply CurrentI-V+ = 13.2V, all channels on or off,0.0001μAVIN= 0V or 5V, VL= 5.25V
Logic Supply CurrentILVL = 5.25V, all channels on or off,0.0001μAVIN= 0V or 5V
Ground CurrentIGNDVL= 5.25V, all channels on or off,-0.0001μAVIN= 0V or 5V
Note 2:
Typical values are for design aid only,not guaranteed, not subject to production testing.
Note 3:
Guaranteed by design.
Note 4:
On resistance match between channels and flatness are guaranteed only with bipolar-supply operation.
Note 5:
Off Isolation = 20log10(VCOM ),VCOM= output, VNC or VNO= input to off switch.
VNCor VNONote 6:Between any two switches.
Precision, CMOS Analog Switches
_______________________________________________________________________________________5

ON RESISTANCE vs. VCOM AND
POWER-SUPPLY VOLTAGE
MAX317-01
VCOM (V)
N (W20C
A: V+ = 5V, V- = -5V
B: V+ = 10V, V- = -10V
C: V+ = 15V, V- = -15V
D: V+ = 20V, V- = -20V
ON RESISTANCE vs. VCOM AND
TEMPERATURE
MAX317-02
VCOM (V)
N (W20
V+ = 15V
V- = -15VTA = +125°C
TA = +85°C
TA = +25°C
TA = -55°C515
ON RESISTANCE vs. VCOM AND
TEMPERATURE

MAX317-03
VCOM (V)
N (W20
V- = 0V
V+ = 5V
V+ = 10V
V+ = 15V
V+ = 20V515
ON RESISTANCE vs. VCOM
(SINGLE-SUPPLY)

MAX317-04
VCOM (V)
(W20
V+ = 12V
V- = 0V
TA = +125°C
TA = +85°C
TA = +25°C
CHARGE INJECTION vs.
ANALOG VOLTAGE
MAX317-07
VCOM (V)
(p20
V+ = 15V
V- = -15V
OFF LEAKAGE CURRENTS vs.
TEMPERATURE
MAX317-05
TEMPERATURE (°C)
+25+125
100V+ = 16.5V
V- = -16.5V
VCOM = ±15V
VNC OR VNO = +15V
ON LEAKAGE CURRENTS vs.
TEMPERATURE
MAX317-06
TEMPERATURE (°C)
LE
+25+125
100V+ = 16.5V
V- = -16.5V
VCOM = ±15V
VNC OR VNO = ±15V
SUPPLY CURRENT vs. TEMPERATURE
MAX317-08
TEMPERATURE (°C)
, I-, IL
(m
+25+125
A: I+ at V+ = 16.5V
B: I- at V- = -16.5V
C: IL at VL = 5V
__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted).
Precision, CMOS Analog Switches_______________________________________________________________________________________
PINNAMEFUNCTIONMAX317MAX318MAX319
11COMAnalog-switch common terminal2—N.C.No connect — not internally connected—8NOAnalog-switch normally open terminal33GNDLogic ground44V+Analog-signal positive supply input55VLLogic-level positive supply input66INLogic-level input77V-Analog-signal negative supply input—2NCAnalog-switch normally closed terminal8—NOAnalog-switch normally open terminal_____________________________________________________________________Pin Description
__________Applications Information
Operation with Supply Voltages
Other Than ±15V

The main limitation of supply voltages other than ±15V
is analog signal range reduction. The MAX317/
MAX318/MAX319 switches operate with bipolar sup-
plies of ±5V to ±20V. Typical Operating Characteristics
graphs show typical on resistance for ±15V, ±10V, and
±5V supplies. Switching times increase by a factor of
two or more for operation at ±5V. The
MAX317/MAX318/MAX319 can operate from unipolar
supplies of +10V to +30V. Both parts can also operate
from unbalanced supplies such as +24V and -5V.
Connect V- to 0V when operating with a single supply.
This means that VL must be connected to +5V to be
TTL compatible, or to V+ for CMOS logic input levels.
Overvoltage Protection

Proper power-supply sequencing is recommended for
all CMOS devices. It is important not to exceed the
absolute maximum ratings because stresses beyond
the listed ratings may cause permanent damage to the
devices. Always sequence V+ on first, followed by VL,
V-, and logic inputs. If power-supply sequencing is not
possible, protect the devices from overvoltage by
adding two small signal diodes in series with the sup-
ply pins (Figure 1). Adding the diodes reduces the
analog signal range to 1V below V+ and 1V below V-,
but low switch resistance and low leakage characteris-
tics are unaffected. Device operation is unchanged,
and the difference between V+ to V- should not exceed
+44V.
COM_
NO_
Figure 1. Overvoltage Protection Using Blocking Diodes
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