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DG211MAXIMN/a27avaiAnalog Switch, SPST, Quad, NClosed, Ron = 175, Vlogic=5V TTL Inputs, CMOS
DG211HARRN/a93avaiAnalog Switch, SPST, Quad, NClosed, Ron = 175, Vlogic=5V TTL Inputs, CMOS


DG211 ,Analog Switch, SPST, Quad, NClosed, Ron = 175, Vlogic=5V TTL Inputs, CMOSApplicationsDG201ADJ -40°C to +85°C 16 Plastic DIPDG201AAK -55°C to +125°C 16 CERDIPWinchester Disk ..
DG211B ,Improved Quad CMOS Analog Switches  FaxBack 408-970-5600S-00788—Rev. H, 24-Apr-004-2DG211B/212BVishay Siliconix  Test Con ..
DG211B ,Improved Quad CMOS Analog Switches  FaxBack 408-970-5600S-00788—Rev. H, 24-Apr-004-1DG211B/212BVishay Siliconix 

DG211
Quad SPST / CMOS Analog Switches
General Description
The DG201A and DG211 are normally closed, quad
single-pole single-throw (SPST) analog switches. These
CMOS switches can be continuously operated with
power supplies ranging from ±4.5V to ±18V. Maxim
guarantees that these switches will not latch up if the
power supplies are disconnected with input signals still
connected.
Both devices have guaranteed break-before-make
switching. The DG201A differs from the DG211 primari-
ly in switching speeds. The DG201A has a maximum
turn-off time of 450ns and a maximum turn-on time of
600ns. The DG211 has a maximum turn-off time of
500ns and a maximum turn-on time of 1000ns.
Compared to the original manufacturer’s products,
Maxim’s DG201A and DG211 consume significantly
lower power making them better suited for portable
applications. Maxim has also eliminated the need for
the third (VL) power supply that is required for the oper-
ation of the original manufacturer’s DG211.
Applications

Winchester Disk Drives
Test Equipment
Communications Systems
PBX, PABX
Guidance and Control Systems
Head Up Displays
Military Radios
Features
Guaranteed ±4.5V to ±18V OperationNo VLSupply RequiredNonlatching with Supplies Turned Off and Input
Signals Present
CMOS and TTL Logic CompatibleMonolithic, Low-Power CMOS Design
DG201A/DG211
Quad SPST CMOS Analog Switches
Pin Configurations
Ordering Information

19-3959; Rev 1; 6/01
Typical Operating Circuit
Pin Configurations continued at end of data sheet.
DG201A/DG211
Quad SPST CMOS Analog Switches
ABSOLUTE MAXIMUM RATINGS (DG211)
ELECTRICAL CHARACTERISTICS (DG211)

(V+ = +15V, V- = -15V, GND = 0, TA= +25°C, unless otherwise noted.) (For more information on TYP values see Note 2.)
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.
V+ to V-………………………………….............……………….44V
VINto Ground…………………………..................….……...V-, V+to Ground………....................……………………….-0.3V, 25Vor VDto V+……...........................………………………0, -40Vor VDto V-……………........................…………………..0, 40V
V+ to Ground…………………...................................………...25V
V- to Ground…………………………………….................…...-25V
Current, Any Terminal Except S or D……….............……...30mA
Continuous Current, S or D……………………..............…...20mA
Peak Current, S or D
(pulsed at 1ms 10% duty cycle max)…..........................70mA
Storage Temperature Range……………..……..-65°C to +125°C
Operating Temperature Range
DG211C................................……………...……...0°C to +70°C
DG211D/E.........................……………...……...-40°C to +85°C
Power Dissipation (TA= +70°C) (Note 1)
16-Pin Plastic Dip (derate 10.5mW/°C above +70°C)..842mW
16-Pin Narrow SO (derate 8.3mW/°C above+70°C).....696mW
16-Pin TSSOP (derate 9.4mW/°C above +70°C)..........755mW
16-Pin QFN (5 ✕5)
(derate 19.2mW/°C above +70°C).........................1538mW
Note 1:
Device mounted with all leads soldered to PC board.
DG201A/DG211
Quad SPST CMOS Analog Switches
ABSOLUTEMAXIMUM RATINGS (DG201A)

Voltages Reference to V-
V+………………………………………………..……………..44V
GND……………………………………………..……….…….25V
Digital Inputs (Note 1), VS, VD............................-2V to (V+ + 2V)
or 20mA, whichever occurs first
Current, Any Terminal Except S or D………..….…………...30mA
Continuous Current, S or D…………………………………...20mA
Peak Current, S or D
(pulsed at 1ms 10% duty cycle max)…………………….70mA
Operating Temperature Range
DG201AA.............…………........………..…...-55°C to +125°C
DG201AD/E.........………………….....…..….…-40°C to +85°C
DG201AC.............………........................…….…0°C to +70°C
Storage Temperature Range………………..…..-65°C to +150°C
Power Dissipation (Note 2)
16-Pin Plastic Dip (derate 10.5mW/°C above +70°C)...842mW
16-Pin SO (derate 8.7mW/°C above +70°C).................696mW
16-Pin TSSOP (derate 9.4mW/°C above +70°C)...........755mW
16-Pin QFN (5 ✕5)
(derate 19.2mW/°C above +70°C)...........................1538mW
16-Pin CERDIP (derate 10.0mW/°C above +70°C)......800mW
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 (DG201A)
ELECTRICAL CHARACTERISTICS (DG211) (continued)

(V+ = +15V, V- = -15V, GND = 0, TA= +25°C, unless otherwise noted.) (For more information on TYP values see Note 2.)
Note 1:
Signals on S_, D_, or IN_exceeding V+or V-on Maxim’s DG201A will be clamped by internal diodes, and are also internally cur-
rent limited to 25mA.
Note 2:
Device mounted with all leads soldered to PC board.
Note 2:
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Note 3:
ID(ON)is leakage from driver into “ON” switch.
Note 4:
OFF-Isolation = 20 log VS/VD, VS= input to OFF switch, VD= output.
DG201A/DG211
Quad SPST CMOS Analog Switches
Note 3:
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Note 4:
ID(ON)is leakage from driver into “ON” switch.
ELECTRICAL CHARACTERISTICS (DG201A) (continued)
DG201A/DG211
Quad SPST CMOS Analog Switches
ELECTRICAL CHARACTERISTICS (DG201A)

(V+ = +15V, V- = -15V, GND = 0, TA= full opearting temperature range, unless otherwise noted.) (For more information on TYP
values see Note 3.)
Note 5:
Electrical characteristics, such as ON-Resistance, will change when power supplies other than ±15V, are used.
Note 6:
ID(ON)is leakage from driver into “ON” switch.
Pin Description
Switching Time Test Circuit

Switch output waveform shown for VS= constant with
logic input waveform as shown. Note that VSmay be
+ve or -ve as per switching times test circuit. VOis the
steady state output with switch on. Feedthrough via
gate capacitance may result in spikes at leading and
trailing edge of output waveform.
DG201A/DG211
Quad SPST CMOS Analog Switches
Protecting Against Fault
Conditions

Fault conditions occur when power supplies are turned
off when input signals are still present, or when over-
voltages occur at the inputs during normal operation. In
either case, source-to-body diodes can be forward
biased and conduct current from the signal source. If
this current is required to be kept to low (µA) levels
then the addition of external protection diodes is rec-
ommended.
To provide protection for overvoltages up to 20V above
the supplies, a 1N4001 or 1N914 type diode should be
placed in series with the positive and negative supplies
as shown in Figure 2. The addition of these diodes will
reduce the analog signal range to 1V below the posi-
tive supply and 1V above the negative supply.
Figure 1. Switching Time
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