MAXIM DG411F, DG412F, DG413F User Manual

General Description

The DG411F/DG412F/DG413F are quad, single-pole/sin­gle-throw (SPST), fault-protected analog switches. They
are pin compatible with the industry-standard nonpro­tected DG411/DG412/DG413. These new switches fea­ture fault-protected inputs and Rail-to-Railsignal­handling capability. All terminals are protected from
overvoltage faults up to ±36V with power on and up to
±40V with power off. During a fault condition, the COM,
NO, or NC terminal becomes an open circuit and only
microamperes of leakage current flow from the source.
On-resistance is 35Ω (max) and is matched between
switches to 1.5Ω (max) at +25°C.

The DG411F has four normally closed (NC) switches.
The DG412F has four normally open (NO) switches.
The DG413F has two NC and two NO switches. These
CMOS switches operate with dual power supplies rang­ing from ±4.5V to ±20V or a single supply between +9V
and +36V. All digital inputs have +0.8V and +2.4V logic
thresholds, ensuring both TTL and CMOS logic com­patibility when using ±15V or a single +12V supply.

For supply voltages of ±5V, +5V, and +3V, refer to the
MAX4711/MAX4712/MAX4713 data sheet.

Applications

Communication Systems

Signal Routing

Test Equipment

Data Acquisition

Industrial and Process Control Systems

Avionics

Redundant/Backup Systems

Features

♦ No Power-Supply Sequencing Required

♦ Rail-to-Rail Signal Handling

♦ All Switches Off with Power Off

♦ All Switches Off when V+ is Off and V- is On

♦ ±40V Fault Protection with Power Off

♦ ±36V Fault Protection with ±15V Supplies

♦ Control Line Fault Protection from

V- - 0.3V to V- + 40V

♦ Pin Compatible with Industry-Standard

DG411/DG412/DG413

♦ 20ns (typ) Fault Response Time

♦ 35Ω (max) R

ON

with ±15V Supplies

♦ ±4.5V to ±20V Dual Supplies

♦ +9V to +36V Single Supply

♦ TTL- and CMOS-Compatible Logic Inputs with

±15V or Single +9V to +15V Supplies

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

19-2418; Rev 0; 4/02

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

Pin Configurations

________________________________________________________________ Maxim Integrated Products 1

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

Pin Configurations continued at end of data sheet.

Functional Diagram appears at end of data sheet.

Ordering Information continued at end of data sheet.

PART TEMP RANGE PIN-PACKAGE

DG411FEUE -40°C to +85°C 16 TSSOP

DG411FDY -40°C to +85°C 16 SO

DG411FDJ -40°C to +85°C 16 Plastic DIP

TOP VIEW

N.C. = NOT CONNECTED. SWITCHES SHOWN FOR LOGIC 0 INPUT.
ALL SWITCHES ARE OFF WITH POWER REMOVED.

IN1

COM1

NC1

V-

GND

NC4

COM4

IN4

1

2

3

4

DG411F

5

6

7

8

DIP/TSSOP/SO

DG411F

LOGIC SWITCH

0
1

ON
OFF

16

IN2

COM2

15

NC2

14

13

V+

N.C.

12

11

NC3

10

COM3

9

IN3

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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+ ...........................................................................-0.3V to +44V

V- ............................................................................-44V to +0.3V

V+ to V-...................................................................-0.3V to +44V

IN_ ......................................................... (V- - 0.3V) to (V- + 40V)

NO_, NC_ to COM_ (Note1) ................................... -40V to +40V

COM_, NO_, NC_ Voltage with

Power On (Note 1).............................................. -36V to +36V

COM_, NO_, NC_ Voltage with

Power Off (Note 1).............................................. -40V to +40V

Continuous Current (any terminal) .................................. ±30mA

Peak Current COM_, NO_, NC_

(pulsed at 1ms, 10% duty cycle) ...............................±100mA

Continuous Power Dissipation (T

A

= +70°C)

16-Pin TSSOP (derate 9.4mW/°C above +70°C) ....... 755mW

16-Pin SO (derate 8.7mW/°C above +70°C)................696mW

16-Pin Plastic DIP (derate 10.53mW/°C

above +70°C) ........................................................ 842mW

Operating Temperature Range .......................... -40°C to +85°C

Junction Temperature .................................................... +150°C

Storage Temperature Range ........................... -65°C to +160°C

Lead Temperature (soldering, 10s) ............................... +300°C

ELECTRICAL CHARACTERISTICS—±15V Dual Supplies

(V+ = +15V, V- = -15V, VIH= +2.4V, VIL= +0.8V, GND = 0, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Notes 2, 3)

PARAMETER

SYM B O L

CONDITIONS T

A

MIN

TYP

MAX

UNITS

ANALOG SWITCH

Fault-Free Analog Signal Range

V

C OM _

,

EV- V+V

25 35

On-Resistance R

ON

I

COM_

= 10mA,

V

NO_

, V

NC_

= ±10V

E45

Ω

0.2 1.5

On-Resistance Match Between
Channels (Note 4)

∆R

ON

I

COM_

= 10mA,

V

NO_

, V

NC_

= ±10V

E 2.0

Ω

1.0 3

On-Resistance Flatness

)

I

COM_

= 10mA,

V

NO_

, V

NC_

= ±5V, 0

E4

Ω

NO_, NC_ Off-Leakage Current

(Note 5)

I

NO_(OFF)

,

)

V

COM_

= ±10V,

V

NO_

, V

NC_

= › 10V

E -20 +20

nA

COM_ Off-Leakage Current
(Note 5)

)

V

COM_

= ±10V,

V

NO_

, V

NC_

= › 10V

E -20 +20

nA

COM_ On-Leakage Current
(Note 5)

)

V

COM_

= ±10V,

V

NO_

, V

NC_

= ±10V or floating

E -40 +40

nA

FAULT

V+ = +15V, V- = -15V E -36 +36

V+ = 0, V- = -15V E -36 +36

Fault-Protected Analog Signal
Range

V

COM_

,

V+ = V- = 0 E -40 +40

V

-1 +1

NO_ or NC_ Off-Leakage
Current

V

NO_

, V

NC_

= ±36V

E -10 +10

µA

-1 +1

COM_ Off-Leakage Current I

COM_

V

COM_

= ±36V

E -10 +10

µA

Note 1: COM_, NO_, and NC_ pins are fault protected. Signals on COM_, NO_, and NC_ exceeding -36V to +36V may damage the

device during power-on conditions. When the power is off, the maximum range is -40V to +40V.

V

, V

N O_

N C _

+25°C

+25°C

+25°C

+25°C -0.25 +0.025 +0.25

+25°C -0.25 +0.025 +0.25

+25°C -0.5 +0.025 +0.5

+25°C

R

FLAT(ON

I

NC_(OFF

I

COM_(OFF

I

COM_(ON

V

NO_, VNC_

I

, I

NO_

NC_

+25°C

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—±15V Dual Supplies (continued)

(V+ = +15V, V- = -15V, VIH= +2.4V, VIL= +0.8V, GND = 0, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Notes 2, 3)

PARAMETER

SYM B O L

CONDITIONS T

A

MIN

TYP

MAX

UNITS

-1 +1

NO_ or NC_ Leakage Current

V

NO_

, V

NC_

= ±40V, V+ = V- = 0

E -10 +10

µA

-1 +1

COM_ Leakage Current I

COM_

V

COM_

= ±40V, V+ = V- = 0

E -10 +10

µA

-1 +1

NO_ or NC_ Off-Leakage
Current

V+ = 0, V- = -15V,
V

NO_

, V

NC_

= ±36V

E -10 +10

µA

-1 +1

COM_ Off-Leakage Current I

COM_

V+ = 0, V- = -15V,
V

COM_

= ±36V

E -10 +10

µA

Fault-Trip Threshold E

V

± Fault Output Turn-Off Delay

V

NO_

, V

NC_

= ±36V, RL = 1kΩ E20ns

± Fault Recovery Time V

NO_

, V

NC_

= ±36V, RL = 1kΩ E1µs

SWITCH DYNAMICS

70 175

Turn-On Time t

ON

V

NO_

or V

NC_

= ±10V, RL = 300Ω,

C

L

= 35pF, Figure 2

E 220

ns

55 145

Turn-Off Time t

OFF

V

NO_

or V

NC_

= ±10V, RL = 300Ω,

C

L

= 35pF, Figure 2

E 160

ns

215

Break-Before-Make Time Delay
(DG413F only) (Note 6)

t

BBM

V

NO_

or V

NC_

= ±10V, RL = 100Ω,

C

L

= 10pF, Figure 3

E1

ns

Charge Injection Q

V

GEN

= 0, R

GEN

= 0, CL = 1nF,

Figure 4

5pC

NO_ or NC_ Off-Capacitance

)

f = 1MHz, Figure 5

15 pF

COM_ Off-Capacitance

)

f = 1MHz, Figure 5

15 pF

COM_ On-Capacitance

)

f = 1MHz, Figure 5

47 pF

Off-Isolation (Note 7) V

ISO

f = 1MHz, RL = 50Ω, CL = 15pF,
P

IN

= 0dBm, Figure 6

-65 dB

Channel-to-Channel Crosstalk
(Note 8)

V

CT

f = 1MHz, RL = 50Ω, CL = 15pF,
P

IN

= 0dBm, Figure 6

dB

LOGIC INPUT

Input Logic High V

IH

E 2.4 V

Input Logic Low V

IL

E 0.8 V

Input Leakage Current I

IN

V

IN_

= 0 or V+ E -1 +1 µA

POWER SUPPLY

Power-Supply Range V+, V- E

±20 V

600

All V

IN_

= +5V, V

COM_

= 0

E 800

300

V+ Supply Current I+

All V

IN_

= 0 or V+, V

COM_

= 0

E 400

µA

I

, I

NO_

NC_

I

, I

NO_

NC_

C

C

COM_(OFF

C

COM_(ON

N_(OFF

+25°C

+25°C

+25°C

+25°C

V- - 0.4 V+ + 0.4

+25°C

+25°C

+25°C

+25°C

+25°C

+25°C

+25°C

+25°C

+25°C -105

±4.5

+25°C 355

+25°C 155

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches

4 _______________________________________________________________________________________

)

)

)

ELECTRICAL CHARACTERISTICS—Single +12V Supply

(V+ = +12V, V- = 0, VIH= +2.4V, VIL= +0.8V, GND = 0, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Notes 2, 3)

ELECTRICAL CHARACTERISTICS—±15V Dual Supplies (continued)

(V+ = +15V, V- = -15V, VIH= +2.4V, VIL= +0.8V, GND = 0, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Notes 2, 3)

PARAMETER SYM B O L CONDITIONS T

All V

= +5V, V

IN_

COM_

V- Supply Current I-

All V

= 0 or V+, V

IN_

All V

= +5V, V

GND Supply Current I

GND

All V

IN_

= 0 or V+, V

IN_

COM_

ANALOG SWITCH

Fault-Free Analog Signal Range

On-Resistance R

On-Resistance Match Between
Channels (Note 4)

NO_, NC_ Off-Leakage Current
(Note 5)

COM_ Off-Leakage Current
(Note 5)

COM_ On-Leakage Current
(Note 5)

FAULT

Fault-Protected Analog
Signal Range

NO_ or NC_ Off-Leakage
Current (Note 5)

COM_ Off-Leakage Current
(Note 5)

NO_ or NC_ Leakage Current
(Note 5)

PARAMETER SYM B O L CONDITIONS T

V

,

COM_

, V

V

NO_

NC_

I

= 1mA,

ON

∆R

ON

I

NO_(OFF)

I

NC_(OFF

I

COM_(OFF

I

COM_(ON

COM_

, V

V

NO_

I

COM_

V

NO_

,

V

COM_

V

NO_

V

COM_

V

NO_

V

COM_

V

NO_

= +10V

NC_

= 1mA,

, V

= +10V

NC_

= +1V, +10V,

, V

= +10V, +1V

NC_

= +1V, +10V,

, V

= +10V, +1V

NC_

= +1V, +10V,

, V

= +1V, +10V,

NC_

or floating

V

COM_

V

NO_, VNC_ Power off E -40 +40

I

, I

NO_

I

COM_

I

NO_, INC_

Power on E -36 +36

,

, V

, V

NC_

NC_

= ±36V

= ±36V

NO_

, V

NC_VNO_

V

NO_

Supplies off, V

= 0

COM_

= 0

COM_

NC_

= 0

= 0

= ±40V

A

+25°C 155 250

E 325

+25°C 155 250

E 325

+25°C 200 350

E 475

+25°C 0.1 1

E10

A

E 0 V+ V

+25°C5685

E 120

+25°C 1.0 4

E5

+25°C -0.25 +0.25

E -20 +20

+25°C -0.5 +0.25

E -20 +20

+25°C -0.5 +0.5

E -40 +40

+25°C-1 +1

E -10 +10

+25°C-1 +1

E -10 +10

+25°C-1 +1

E -10 +10

MIN TYP MAX UNITS

µA

µA

MIN TYP MAX UNITS

Ω

Ω

nA

nA

nA

V

µA

µA

µA

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

_______________________________________________________________________________________ 5

Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3: Electrical specifications at -40°C are not production tested and guaranteed by design.
Note 4: ∆R

ON

= ∆R

ON(MAX)

- ∆R

ON(MIN)

.

Note 5: Leakage parameters are 100% tested at maximum rated temperature and with dual supplies and guaranteed by design at +25°C.
Note 6: Guaranteed by design.
Note 7: Off-Isolation = 20 log

10

[V

COM

/(VNCor VNO)], V

COM

= output, VNCor VNO= input to off switch.

Note 8: Between any two switches.

ELECTRICAL CHARACTERISTICS—Single +12V Supply (continued)

(V+ = +12V, V- = 0, VIH= +2.4V, VIL= +0.8V, GND = 0, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

T

A

= +25°C.) (Notes 2, 3)

PARAMETER

SYM B O L

CONDITIONS T

A

MIN

TYP

MAX

UNITS

-1 +1

COM_ Leakage Current
(Note 5)

I

COM_

Supplies off, V

NO_

, V

NC_

= ±40V

E -10

µA

+Fault Output Turn-Off Delay

V

NO_

, V

NC_

= +36V, RL = 1kΩ E20ns

+Fault Recovery Time V

NO_

, V

NC_

= +36V, RL = 1kΩ E1µs

SWITCH DYNAMICS

Turn-On Time t

ON

V

NO_

or V

NC_

= +10V, RL = 300Ω,

C

L

= 35pF, Figure 2

E

ns

70

Turn-Off Time t

OFF

V

NO_

or V

NC_

= +10V, RL = 300Ω,

C

L

= 35pF, Figure 2

E

ns

250

Break-Before-Make Time Delay
(DG413F Only) (Note 6)

t

BBM

V

NO_

or V

NC_

= +10V, RL = 100Ω,

C

L

= 10pF, Figure 3

E1

ns

Charge Injection Q

V

GEN

= 0, R

GEN

= 0, CL = 1nF,

Figure 4

5pC

LOGIC INPUT

Input Logic High V

IH

E 2.4 V

Input Logic Low V

IL

E 0.8 V

Input Leakage Current
(Note 5)

I

IN

V

IN_

= 0 or V+ E -1 +1 µA

POWER SUPPLY

Power-Supply Range V+ E +9

V

All V

IN_

= +5V, V

COM_

= +6V

E

85

V+ Supply Current I+

All V

IN_

= 0 or V+, V

COM_

= +6V

E

µA

+25°C

+25°C 120 250

+25°C

+25°C

+25°C

+10

315

125

140

+25°C 180 350

+25°C

+36

450

150

250

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches

6 _______________________________________________________________________________________

Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

TURN-ON/TURN-OFF TIMES

vs. SUPPLY VOLTAGE (DUAL SUPPLIES)

DG411 toc09

SUPPLY VOLTAGE (V+, V-)

t

ON

/t

OFF

(ns)

1510

50

100

150

200

250

300

0

520

t

ON

t

OFF

LOGIC-LEVEL THRESHOLD VOLTAGE

vs. SUPPLY VOLTAGE

DG411 toc08

SUPPLY VOLTAGE (V)

THRESHOLD VOLTAGE (V)

353025201510

1.5

2.0

2.5

3.0

1.0
540

DUAL OR SINGLE

SUPPLIES

SUPPLY CURRENT vs. TEMPERATURE

DG411 toc07

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

603510-15

100

200

300

400

500

0

-40 85

DUAL SUPPLIES:
V+ = +15V, V- = -15V, V

IN_

= +5V

I+

I-

I

GND

CHARGE INJECTION vs. V

COM

DG411 toc06

V

COM

(V)

Q (pC)

1050-5-10

-10

0

10

20

30

40

-20

-15 15

DUAL SUPPLIES: ±15V

SINGLE
SUPPLY: +12V

ON/OFF-LEAKAGE CURRENT

vs. TEMPERATURE

DG411 toc05

TEMPERATURE (°C)

LEAKAGE CURRENT (pA)

603510-15

0.1

1

10

100

1000

10,000

0.01

-40 85

I

COM(ON)

I

COM(OFF)

I

NO(OFF)

,

I

NC(OFF)

DUAL SUPPLIES:
V+ = +15V, V- = -15V

ON-RESISTANCE vs. V

COM

AND TEMPERATURE

(SINGLE SUPPLY)

DG411 toc04

V

COM

(V)

R

ON

(Ω)

108642

20

40

60

80

100

0

012

V+ = +12V
V- = 0

TA = +85°C

TA = +25°C

TA = -40°C

ON-RESISTANCE vs. V

COM

(SINGLE SUPPLY)

DG411 toc03

V

COM

(V)

R

ON

(Ω)

302418126

20

40

60

80

100

0

036

V+ = +9V

V- = 0

V+ = +12V

V- = 0

V+ = +15V

V- = 0

V+ = +24V

V- = 0

V+ = +36V

V- = 0

V+ = +28V

V- = 0

ON-RESISTANCE vs. V

COM

AND TEMPERATURE

(DUAL SUPPLIES)

DG411 toc02

V

COM

(V)

R

ON

(Ω)

1050-5-10

10

20

30

40

50

0

-15 15

V+ = +15V
V- = -15V

TA = +85°C

TA = +25°C

TA = -40°C

ON-RESISTANCE vs. V

COM

(DUAL SUPPLIES)

DG411 toc01

V

COM

(V)

R

ON

(Ω)

151050-5-10-15

20

40

60

80

100

0

-20 20

V+ = +5V
V- = -5V

V+ = +10V
V- = -10V

V+ = +15V

V- = -15V

V+ = +20V
V- = -20V

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

_______________________________________________________________________________________ 7

Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)

FAULT CURRENT vs. FAULT VOLTAGE

(SINGLE SUPPLY)

DG411 toc16

V

COM

(V)

I

COM

(µA)

4020-40 -20 0

-150

-100

-50

0

50

100

150

200

-200

-60 60

FOR 0V < V

COM

< V

SUPPLY

,

I

COM

= V

COM/RL

FAULT CURRENT vs. FAULT VOLTAGE

(DUAL SUPPLIES)

DG411 toc15

V

COM

(V)

I

COM

(µA)

4020-40 -20 0

-150

-100

-50

0

50

100

150

200

-200

-60 60

DUAL SUPPLIES:
V+ = +15V, V- = -15V

FOR |V

COM

| < V

SUPPLY

,

I

COM

= V

COM/RL

TOTAL HARMONIC DISTORTION

vs. FREQUENCY

DG411 toc14

FREQUENCY (Hz)

THD (%)

10k1k100

0.01

0.1

1

0.001
10 100k

±15V DUAL SUPPLIES
IN = OUT = 600Ω, V

P-P

= 5V

FREQUENCY RESPONSE

DG411 toc13

FREQUENCY (MHz)

LOSS (dB)

1010.10.01

-100

-80

-60

-40

-20

0

20

-120

0.001 100

V+ = +15V, V- = -15V

ON-RESPONSE

OFF-ISOLATION

CROSSTALK

TURN-ON/TURN-OFF TIMES

vs. TEMPERATURE (SINGLE SUPPLY)

DG411 toc12

TEMPERATURE (°C)

t

ON

/t

OFF

(ns)

603510-15

50

100

150

200

0

-40 85

t

ON

t

OFF

V+ = +12V, V- = 0

TURN-ON/TURN-OFF TIMES

vs. TEMPERATURE (DUAL SUPPLIES)

DG411 toc11

TEMPERATURE (°C)

t

ON

/t

OFF

(ns)

603510-15

20

40

60

80

100

120

0

-40 85

t

ON

t

OFF

DUAL SUPPLIES: ±15V

TURN-ON/TURN-OFF TIMES

vs. SUPPLY VOLTAGE (SINGLE SUPPLY)

DG411 toc10

SUPPLY VOLTAGE (V+)

t

ON

/t

OFF

(ns)

2718

50

100

150

200

0

936

t

ON

t

OFF

V- = GND

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches

8 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)

FAULT RESPONSE

(V+ = 0, V- = -15V)

DG411 toc22

2ms/div

GND

V

COM_

OUTPUT

V

NO_

, V

NC_

INPUT

+25V

GND

-25V

FAULT RECOVERY TIME

(NEGATIVE INPUT)

DG411 toc21

1µs/div

GND

V

COM_

OUTPUT

-5V

V

NO_

, V

NC_

INPUT

-5V

GND

-25V

FAULT RECOVERY TIME

(POSITIVE INPUT)

DG411 toc20

1µs/div

GND

V

COM_

OUTPUT

+5V

V

NO_

, V

NC_

INPUT

+25V

GND

+5V

FAULT STEP RESPONSE

(NEGATIVE INPUT)

DG411 toc19

2ms/div

GND

V

COM_

OUTPUT

-5V

-5V

V

NO_

, V

NC_

INPUT

-25V

GND

FAULT STEP RESPONSE

(POSITIVE INPUT)

DG411 toc18

GND

V

COM_

OUTPUT

GND

V

NO_

, V

NC_

INPUT

2ms/div

+5V

+25V

INPUT OVERVOLTAGE vs. OUTPUT

DG411 toc17

GND

+25V

+15V

-22V

-15V

V

COM_

OUTPUT

GND

V

NO_

, V

NC_

INPUT

20ms/div

Detailed Description

The DG411F/DG412F/DG413F are fault-protected
CMOS analog switches with unique operation and
construction. These switches differ considerably from
traditional fault-protection switches, with several advan­tages. First, they are constructed with two parallel
FETs, allowing very low on-resistance when the switch
is on. Second, they allow signals on the NO_ or NC_
pins that are within, or slightly beyond, the supply rails
to be passed through the switch to the COM_ terminal
(or vice versa), allowing true rail-to-rail signal operation.
Third, the DG411F/DG412F/DG413F have the same
fault-protection performance on any of the NO_, NC_,
or COM_ switch inputs. Operation is identical for both
fault polarities. The fault protection extends to ±36V
from GND with ±15V supplies.

During a fault condition, the particular overvoltage input
(COM_, NO_, NC_) pin becomes high impedance
regardless of the switch state or load resistance. When
power is removed, the fault protection is still in effect. In
this case, the COM_, NO_, or NC_ terminals are a virtu­al open circuit. The fault can be up to ±40V with power
off. The switches turn off when V+ is not powered,
regardless of V-.

Pin Compatibility

These switches have identical pinouts to common non­fault-protected CMOS switches. They allow for carefree

direct replacement in existing printed circuit boards
since the NO_, NC_, and COM_ pins of each switch are
fault protected.

Internal Construction

Internal construction is shown in Figure 1, with the ana-

log signal paths shown in bold. A single NO switch is
shown. The NC configuration is identical except the
logic-level translator becomes an inverter. The analog
switch is formed by the parallel combination of N-chan­nel FET (N1) and P-channel FET (P1), which are driven
on and off simultaneously according to the input fault
condition and the logic-level state.

Normal Operation

Two comparators continuously compare the voltage on
the COM_, NO_, and NC_ pins with V+ and V-. When
the signal on COM_, NO_, or NC_ is between V+ and
V-, the switch acts normally, with FETs N1 and P1 turn­ing on and off in response to IN_ signals. The parallel
combination of N1 and P1 forms a low-value resistor
between NO_ (or NC_) and COM_ so that signals pass
equally well in either direction.

Positive Fault Condition

When the signal on NO_ (or NC_) and COM_ exceeds
V+ by about 50mV, the high-fault comparator output is
high, turning off FETs N1 and P1. This makes the NO_
(or NC_) and COM_ pins high impedance regardless of

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

_______________________________________________________________________________________ 9

Pin Description

PIN

DG411F DG412F DG413F

1, 16, 9, 8 1, 16, 9, 8 1, 16, 9, 8 IN1, IN2, IN3, IN4 Logic Control Digital Inputs

2, 15, 10, 7 2, 15, 10, 7 2, 15, 10, 7

3, 14, 11, 6 ——NC1, NC2, NC3, NC4 Analog Switch Normally Closed Terminals

— 3, 14, 11, 6 — NO1, NO2, NO3, NO4 Analog Switch Normally Open Terminals

——3, 6 NO1, NO4 Analog Switch Normally Open Terminals

——14, 11 NC2, NC3 Analog Switch Normally Closed Terminals

444 V-

5 5 5 GND Ground. Connect to digital ground.

12 12 12 N.C. No Connection. Not internally connected.

13 13 13 V+

NAME FUNCTION

COM1, COM2, COM3,

COM4

Analog Switch Common Terminals

Negative-Supply Voltage Input. Connect to GND for single­supply operation. Bypass with a 0.1µF capacitor to GND.

Positive-Supply Voltage Input. Bypass with a 0.1µF capacitor
to GND.

DG411F/DG412F/DG413F

the switch state. If the switch state is off, all FETs are
turned off and both NO_ (or NC_) and COM_ are high
impedance.

Negative Fault Condition

When the signal on NO_ (or NC_) and COM_ exceeds
V- by about 50mV, the low-fault comparator output is
high, turning off FETs N1 and P1. This makes the NO_
(or NC_) and COM_ pins high impedance regardless of
the switch state. If the switch state is off, all FETs are
turned off and both NO_ (or NC_) and COM_ are high
impedance.

Transient Fault Response and Recovery

When a fast rise-time and fall-time transient on NO_,
NC_, or COM_ exceeds V+ or V-, the output follows the
input to the supply rail with only a few nanoseconds
delay. This delay is due to the switch on-resistance and
circuit capacitance to ground. When the input transient
returns to within the supply rails, however, there is a
longer output recovery time delay. For positive faults,
the recovery time is typically 1µs. For negative faults,
the recovery time is typically 0.5µs. These values
depend on the output resistance and capacitance, and
are not production tested or guaranteed. The delays
are not dependent on the fault amplitude. Higher load
resistance and capacitance increase recovery times.

Fault-Protection Voltage and Power Off

The maximum fault voltage on the NO_ (or NC_) and
COM_ pins is ±36V with power applied and ±40V with
power off.

Failure Modes

Exceeding the fault-protection voltage limits on NO_,
NC_, or COM_, even for very short periods, can cause
the device to fail. See the Absolute Maximum Ratings.
The failure modes may not be obvious, and failure in
one switch may or may not affect other switches in the
same package.

Ground

There is no galvanic connection between the analog
signal paths and GND. The analog signal paths consist
of an N-channel and P-channel MOSFET with their
sources and drains paralleled and their gates driven
out of phase to V+ and V- by the logic-level translators.
However, the potential of the analog signals must be
defined or at least limited with respect to GND.

V+ and GND power the internal logic and logic-level
translators and set the input logic thresholds. The logic­level translators convert the logic levels to switched V+
and V- signals to drive the gates of the analog switch­es. This drive signal is the only connection between the
power supplies and the analog signals.

IN_ Logic-Level Thresholds

The logic-level thresholds are CMOS and TTL compati­ble when V+ is +15V. As V+ is raised, the threshold
increases slightly, and when V+ reaches 25V, the level
threshold is about 2.3V, above the TTL output high-level
minimum of 2.4V, but still compatible with CMOS out­puts (see the Typical Operating Characteristics). V- has
no effect on the logic-level thresholds.

Bipolar Supplies

The DG411F/DG412F/DG413F operate with bipolar
supplies between ±4.5V and ±20V. The V+ and V- sup­plies need not be symmetrical, but their difference can­not exceed the absolute maximum rating of 44V.

Single Supply

The DG411F/DG412F/DG413F operate from a single
supply between +9V and +36V when V- is connected to
GND.

Chip Information

TRANSISTOR COUNT: 251

PROCESS: CMOS

SUBSTRATE CONNECTED TO: V+

Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches

10 ______________________________________________________________________________________

Ordering Information (continued)

PART TEMP RANGE PIN-PACKAGE

DG412FEUE -40°C to +85°C 16 TSSOP

DG412FDY -40°C to +85°C 16 SO

DG412FDJ -40°C to +85°C 16 Plastic DIP

DG413FEUE -40°C to +85°C 16 TSSOP

DG413FDY -40°C to +85°C 16 SO

DG413FDJ -40°C to +85°C 16 Plastic DIP

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

______________________________________________________________________________________ 11

Test Circuits/Timing Diagrams

Figure 1. Functional Diagram

Figure 2. Switch Turn-On/Turn-Off Times

NO_

IN_

GND

V+

V-

ESD DIODE

NORMALLY OPEN SWITCH CONSTRUCTION

HIGH

FAULT

LOW

FAULT

ON

P1

N1

DG411F
DG412F
DG413F

COM_

V+

V+

NO_ OR NC_

V

IN_

DG411F
DG412F
DG413F

GND

V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.

COM_

V-

V-

3V

V

10V

V

OUT

R

L

C

L

IN_

0V

10V

V

OUT

0V

t

OFF

50%

90%

90%

t

ON

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches

12 ______________________________________________________________________________________

Test Circuits/Timing Diagrams (continued)

Figure 3. DG413F Break-Before-Make Interval

Figure 4. Charge Injection

Figure 5. COM_, NO_, NC_ Capacitance

V+

NO_

GEN

3V

V

IN_

0V

, V

NC_

V

OUT

0V

3V

V

IN_

0V

V

OUT

∆V

IS THE MEASURED VOLTAGE DUE TO CHARGE-

OUT

TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF

V

IN_

V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.

IN_
IN_

V+

DG413F

GND

NO_

NC_

COM_

COM_

V-

V-

10V

V

R

L

C

L

V+

R

V

IN_

IN_

V+

NO_ OR NC_

GEN

DG411F
DG412F

COM_

V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.

DG413F

GND

V-

V-

V

OUT

C

L

OUT

V

V

t

50%

BBM

Q = ∆V

OUT

90%

x C

L

< 5ns

t

F

tR < 5ns

∆V

OUT

V+

V+

GND

NO_

NC_

COM_
V-

V-

1MHz

CAPACITANCE

ANALYZER

V+

DG411F
DG412F

IN_

DG413F

V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

______________________________________________________________________________________ 13

Test Circuits/Timing Diagrams (continued)

Figure 6. Frequency Response, Off-Isolation, and Crosstalk

Pin Configurations (continued)

V+

10nF

V+

3.0V

IN_

MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AND OPEN AT SOCKET TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINALS.
ON-RESPONSE IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC_ TERMINALS.
CROSSTALK IS MEASURED BETWEEN COM_ TERMINALS WITH ALL SWITCHES ON.
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.

TOP VIEW

1

IN1

2

COM1

3

NO1

V-

4

DG412F

5

GND

6

NO4

7

COM4

8

IN4

DG411F
DG412F
DG413F

GND

10nF

COM_

NO_, NC_

V-

V-

16

15

14

13

12

11

10

9

IN2

COM2

NO2

V+

N.C.

NO3

COM3

IN3

50Ω

50Ω RESISTOR
ONLY NEEDED
FOR CROSSTALK
AND ISOLATION

V

IN

V

OUT

IN1

COM1

NO1

V-

GND

NO4

COM4

IN4

NETWORK
ANALYZER

50Ω 50Ω

MEAS REF

50Ω 50Ω

1

2

3

4

DG413F

5

6

7

8

16

IN2

15

COM2

14

NC2

13

V+

12

N.C.

11

NC3

10

COM3

9

IN3

DIP/TSSOP/SO

DG412F

LOGIC SWITCH

0
1

N.C. = NOT CONNECTED. SWITCHES SHOWN FOR LOGIC “0” INPUT.
ALL SWITCHES ARE OFF WITH POWER REMOVED

OFF

ON

DIP/TSSOP/SO

LOGIC

0
1

DG413F

SWITCHES

1, 4

OFF

ON

SWITCHES

2, 3

ON

OFF

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches

14 ______________________________________________________________________________________

Package Information

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)

PDIPN.EPS

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

______________________________________________________________________________________ 15

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)

TSSOP,NO PADS.EPS

DG411F/DG412F/DG413F

Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

© 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)

16L SOIC.EPS