Datasheet DG442AK, DG441DY, DG441DK, DG441DJ, DG441CY Datasheet (Maxim Integrated Producs)

19-4611; Rev 2; 7/96

Improved, Quad, SPST Analog Switches

_______________General Description

Maxim’s redesigned DG441/DG442 analog switches now
feature on-resistance matching (4Ω max) between
switches and guaranteed on-resistance flatness over the
signal range (9Ω max). These low on-resistance switches
conduct equally well in either direction. They guarantee
low charge injection (10pC max), low power consumption
(1.65mW), and an ESD tolerance of 2000V minimum per
Method 3015.7. The new design offers lower off-leakage
current over temperature (less than 5nA at +85°C).

The DG441/DG442 are quad, single-pole/single-throw
(SPST) analog switches. The DG441 has four normally
closed switches, and the DG442 has four normally open
switches. Switching times are less than 250ns for tONand
less than 70ns for t

. These devices operate from a sin-

OFF

gle +10V to +30V supply, or bipolar ±4.5V to ±20V sup­plies. Maxim’s improved DG441/DG442 continue to be
fabricated with a 44V silicon-gate process.

________________________Applications

Sample-and-Hold Circuits PBX, PABX
Communication Systems Guidance and Control Systems
Test Equipment Audio-Signal Routing
Battery-Operated Systems Military Radios
Heads-Up Displays Modems
Fax Machines

______________________New Features

♦ Plug-In Upgrades for Industry-Standard DG441/DG442
♦ Improved rDS(ON) Match Between Channels(4Ωmax)
♦ Guaranteed r

FLAT(ON)

Over Signal Range (9Ωmax)

♦ Improved Charge Injection (10pC max)
♦ Improved Off-Leakage Current Over Temperature

(<5nA at +85°C)

♦ Withstand Electrostatic Discharge (2000V min)

per Method 3015.7

__________________Existing Features

♦ Low r
♦ Single-Supply Operation +10V to +30V

Bipolar-Supply Operation ±4.5V to ±20V

♦ Low Power Consumption (1.65mW max)
♦ Rail-to-Rail Signal Handling
♦ TTL/CMOS-Logic Compatible

DS(ON)

(85Ω max)

______________Ordering Information

PART TEMP. RANGE PIN-PACKAGE

DG441CJ

DG441CY 0°C to +70°C 16 Narrow SO
DG441C/D 0°C to +70°C Dice*
DG441DJ -40°C to +85°C 16 Plastic DIP
DG441DY -40°C to +85°C 16 Narrow SO
DG441DK -40°C to +85°C 16 CERDIP
DG441AK

Ordering Information continued on last page.

*

Contact factory for dice specifications.

**

Contact factory for availability and processing to MIL-STD-883B.

0°C to +70°C 16 Plastic DIP

-55°C to +125°C 16 CERDIP**

DG441/DG442

_____________________Pin Configurations/Functional Diagrams/Truth Tables

TOP VIEW

1

IN1

GND

IN4

D1
S1

S4
D4

2
3

V-

4
5
6
7
8

DG441

DIP/SO DIP/SO

DG441

LOGIC SWITCH

0
1

16

IN2
D2

15

S2

14
13

V+
N.C.

12
11

S3

10

D3

9

IN3

ON

OFF

SWITCHES SHOWN FOR LOGIC “0” INPUT

_______________________________________________________________________________________ 1

IN1

GND

IN4

D1
S1

S4
D4

1
2
3

V-

4
5
6
7
8

DG442

DG442

LOGIC SWITCH

0
1

OFF

ON

16
15
14
13
12
11
10

IN2
D2
S2
V+
N.C.
S3
D3

9

IN3

N.C. = Not Internally Connected

For free samples & the latest literature: http://www.maxim-ic.com, or phone [phone]

Improved, Quad, SPST Analog Switches

ABSOLUTE MAXIMUM RATINGS

Voltage Referenced to V-

V+.........................................................................................44V

GND .....................................................................................25V

...................................................(GND - 0.3V) to (V+ + 0.3V)

V

L

Digital Inputs, V

, VD (Note 1)......(V- - 2V) to (V+ + 2V) or 30mA

S

(whichever occurs first)

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

Peak Current, S or D

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

Continuous Power Dissipation (T

Plastic DIP (derate 10.53mW/°C above +70°C) ............842mW

Narrow SO (derate 8.70mW/°C above +70°C) ..............696mW

CERDIP (derate 10.00mW/°C above +70°C).................800mW

Operating Temperature Ranges

DG441C/DG442C.................................................0°C to +70°C

DG441D/DG442D..............................................-40°C to +85°C

DG441AK/DG442AK .......................................-65°C to +150°C

Storage Temperature Range.............................-65°C to +150°C

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

Note 1: Signals on S, D, or IN exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and

DG441/DG442

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, GND = 0V, V

SWITCH

Analog-Signal Range

Drain-Source On-Resistance

On-Resistance Match
Between Channels (Note 4)

On-Resistance Flatness
(Note 4)

Source Off-Leakage Current
(Note 5)

Drain Off-Leakage Current
(Note 5)

Drain On-Leakage Current
(Note 5)

DIGITAL

Input Current with
Input Voltage High

Input Current with
Input Voltage Low

= 2.4V, V

INH

SYMBOLPARAMETER

ANALOG

r

DS(ON)

∆r

DS(ON)

r

FLAT(ON)

I

S(OFF)

I

D(OFF)

I

D(ON)

or

I

S(ON)

INH

INL

= 0.8V, TA= T

INL

MIN

CONDITIONS

(Note 3)
V+ = 13.5V, V- = -13.5V,

IS= -10mA,
VD= 8.5V or -8.5V

V+ = 15V, V- = -15V,
VD= ±10V,
IS= -10mA

V+ = 15V, V- = -15V,
VD= 5V or -5V,
IS= -10mA

V+ = 16.5V, V- = -16.5V,

±

VD= 15.5V,
VS= ±15.5V

V+ = 16.5V, V- = -16.5V,

±

VD= 15.5V,
VS= ±15.5V

V+ = 16.5V, V- = -16.5V,
VD= ±15.5V,
VS= ±15.5V

VIN= 2.4V

VIN= 0.8V

to T

, unless otherwise noted.)

MAX

TA= +25°C
TA= T

MIN

to T
TA= +25°C
TA= T

MIN

to T
TA= +25°C
TA= T

MIN

to T
TA= +25°C

MAX

C, D
A

TA= T

TA= +25°C

TA= T

C, D

MAX

TA= +25°C

TA= T

MAX

A -20 20

MAX

MAX

MAX

= +70°C)

A

MIN TYP MAX

(Note 2)

50 85

100

4
5
9

15

-0.50 0.01 0.50

-5 5

-20 20

-.0.50 0.01 0.50

-5 5

-20 20A

-0.50 0.08 0.50

-10 10C, D

UNITS

V-15 15V

Ω

Ω

Ω

nA

nA

nA

nA-500 0.01 500I

nA-500 0.01 500I

2 _______________________________________________________________________________________

Improved, Quad, SPST Analog Switches

ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)

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

SYMBOLPARAMETER

SUPPLY

Ground Current

DYNAMIC

Turn-On Time
Turn-Off Time ns

Off-Isolation Rejection
Ratio (Note 6)

Crosstalk (Note 7) dB-100
Source Off-Capacitance

Drain Off-Capacitance pF4
Drain On-Capacitance pF

C

= 2.4V, V

INH

All channels on or off, V+ = 16.5V, V- = -16.5V,
VIN= 0V or 5V

All channels on or off,

I-Negative Supply Current

GND

ON

t

OFF

QCharge Injection (Note 3) pC510

OIRR

S(OFF)
D(OFF)

D(ON)

V+ = 16.5V, V- = -16.5V,
VIN= 0V or 5V

All channels on or off, V+ = 16.5V, V- = -16.5V,
VIN= 0V or 5V

VS= ±10V, RL= 1kΩ, Figure 2t

DG442, VD= ±10V, Figure 2
CL= 1nF, V

R

GEN

RL= 50Ω, CL= 5pF,
f = 1MHz, Figure 4

RL= 50Ω, CL= 5pF,
f = 1MHz, Figure 5

f = 1MHz, Figure 6C

f = 1MHz, Figure 6C

= 0.8V, TA= T

INL

= 0V,

GEN

= 0Ω, Figure 3

to T

MIN

CONDITIONS

, unless otherwise noted.)

MAX

TA= +25°C

TA= T

TA= +25°C
T

A

TA= +25°C
TA= +25°C

TA= +25°C

TA= +25°C
TA= +25°C

TA= +25°Cf = 1MHz, Figure 6
TA= +25°C

to T

MIN

MAX

= +25°CDG441, VD= ±10V, Figure 2

MIN TYP MAX

(Note 2)

-1 -0.0001 1

-5 5

150 250

90 120

110 170

4

16

DG441/DG442

UNITS

V±4.5 ±20.0V+, V-Power-Supply Range

µA15 100I+Positive Supply Current

µA

µA-100 -15I

ns

dB60

pF

_______________________________________________________________________________________ 3

Improved, Quad, SPST Analog Switches

ELECTRICAL CHARACTERISTICS—Single Supply

(V+ = 12V, V- = 0V, GND = 0V, V

SWITCH

Analog Signal Range

Drain-Source
On-Resistance

SUPPLY

Power-Supply Range

DG441/DG442

Positive Supply Current

Ground Current

DYNAMIC

Turn-On Time ns
Turn-Off Time

Note 2: Typical values are for design aid only, are not guaranteed, and are not subject to production testing. The algebraic con-

vention, 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: On-resistance match between channels and flatness is guaranteed only with bipolar-supply operation. Flatness is defined

as the difference between the maximum and the minimum value of on-resistance as measured at the extremes of the speci­fied analog range.

Note 5: Leakage parameters I

by correlation at +25°C.

Note 6: Off-Isolation Rejection Ratio = 20log (V
Note 7: Between any two switches.

INH

SYMBOLPARAMETER

ANALOG

r

DS(ON)

V+

= 2.4V, V

= 0.8V, TA= T

INL

MIN

CONDITIONS

(Note 3)

V+ = 10.8V, VD= 3V, 8V,
IS= 1.0mA

to T

, unless otherwise noted.)

MAX

TA= +25°C
TA= T

MIN

to T

MAX

MIN TYP MAX

(Note 2)

100 160

200

10 30

15 100All channels on or off, VIN= 0V or 5VI+

I-Negative Supply Current µA

GND

ON

OFF

QCharge Injection (Note 3) pC510

S(OFF)

All channels on or off,
VIN= 0V or 5V

VS= 8V, Figure 2t
VS= 8V, Figure 2t

GEN

, I

D(OFF)

, and I

D(ON)

), VD= output, VS= input to off switch.

D/VS

= 0V

are 100% tested at the maximum rated hot temperature and guaranteed

TA= +25°C
TA= T

MIN

TA= +25°C
TA= +25°C
TA= +25°CCL= 1nF, V

to T

MAX

-1 -0.0001 1

-5 5

-100 -15All channels on or off, VIN= 0V or 5VI

300 400

60 200

UNITS

V012V

Ω

V

µA

µA

ns

__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

4

3

2

1

ON-LEAKAGE (nA)

0

-1

-2

ON-LEAKAGE CURRENTS

V+ = 15V
V- = -15V

TA = +125°C

TA = +85°C

-10

-15 0 15

-5
VS, VD (V)

510

OFF-LEAKAGE (nA)

-1

OFF-LEAKAGE CURRENTS

2

V+ = 15V
V- = -15V

1

TA = +125°C

TA = +85°C

0

-10

-15 0 15

-5
VS, VD (V)

510

(V)
V

IN

4 _______________________________________________________________________________________



SWITCHING THRESHOLD vs. 

BIPOLAR SUPPLY VOLTAGE

3.5

3.0

2.5

2.0

1.5

0.5

0

±5 ±10 ±15 ±20

MAX

MIN

BIPOLAR SUPPLY VOLTAGE (V)

Improved, Quad, SPST Analog Switches

____________________________Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)

ON-RESISTANCE vs. VD AND

250
225
200
175
150

(Ω)

125

DS(ON)

100

r

UNIPOLAR SUPPLY VOLTAGE

V+ = 10V

V+ = 15V

75
50
25

0

0 5 10 15 20

V+ = 20V

VD (V)

ON-RESISTANCE vs. VD AND UNIPOLAR
SUPPLY VOLTAGE AND TEMPERATURE

150

125

100

(Ω)

75

DS(ON)

r

50

V+ = 12V

25

V- = 0V

0

04812

TA = +125°C

V

(V)

D

TA = +25°C

TA = -55°C

ON-RESISTANCE vs. VD AND

BIPOLAR SUPPLY VOLTAGE

180

150

120

(Ω)

90

DS(ON)

r

±15V

60

30

0

-20 -10 0 +10 +20

±5V

±10V

±20V

VD (V)

SWITCHING TIMES vs.

240

BIPOLAR SUPPLY VOLTAGE



200

160

120

TIME (ns)

80

40

0

±5 ±10 ±15 ±20

BIPOLAR SUPPLY VOLTAGE (V)

t

ON

t

OFF

120

100

80

(Ω)

60

DS(ON)

r

40

20

350
300

250

200

TIME (ns)

150

100

50

ON-RESISTANCE vs. VD AND 

BIPOLAR VOLTAGE AND TEMPERATURE

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

TA = +125°C

TA = +25°C

TA = -55°C

0

-10

-15 0 15

-5

510

VD (V)

SWITCHING TIMES vs.

UNIPOLAR SUPPLY VOLTAGE

t

ON

t

OFF

0

10 15 20 25

UNIPOLAR SUPPLY VOLTAGE (V)

DG441/DG442

CHARGE INJECTION vs. 

VD VOLTAGE (DUAL SUPPLY)

40

V+ = 15V
V- = -15V
CL = 1nF

20

Q (pC)

0

-20

-15 -10 0 10 15
(V)

V

D

10

Q (pC)

-10

0

CHARGE INJECTION vs. 

VD VOLTAGE (SINGLE SUPPLY)

V+ = 12V
V- = 0V
CL = 1nF

0 5 10 15

(V)

V

D

_______________________________________________________________________________________

5

Improved, Quad, SPST Analog Switches

_____________________Pin Description

PIN NAME FUNCTION

1, 16, 9, 8 IN1–IN4 Input

2, 15, 10, 7 D1–D4 Drain Output

3, 14, 11, 6 S1–S4 Source Output

4 V- Negative Supply Voltage Input

DG441/DG442

5 GND Ground

12 N.C. Not Internally Connected

13 V+

Positive Supply Voltage Input.
Connected to substrate.

__________Applications Information

Operation with Supply Voltages

Other Than ±15V

Using supply voltages other than ±15V reduces the
analog signal range. The DG441/DG442 switches oper­ate with ±4.5V to ±20V bipolar supplies or with a +10V
to +30V single supply; connect V- to 0V when operating
with a single supply. Also, all device types can operate
with unbalanced supplies such as +24V and -5V. The

Typical Operating Characteristics

on-resistance with ±20V, ±15V, ±10V, and ±5V sup­plies. (Switching times increase by a factor of two or
more for operation at ±5V.)

graphs show typical

Overvoltage Protection

Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi­mum ratings because stresses beyond the listed rat­ings can cause permanent damage to the devices.
Always sequence V+ on first, followed by V- and logic
inputs. If power-supply sequencing is not possible, add
two small, external signal diodes in series with supply
pins for overvoltage protection (Figure 1). Adding exter­nal diodes reduces the analog-signal range to 1V
below V+ and 1V above V-, but low switch resistance
and low leakage characteristics are unaffected. Device
operation is unchanged, and the difference between
V+ and V- should not exceed +44V.

V+

D

V

g

V-

Figure 1. Overvoltage Protection Using External Blocking Diodes

S

6 _______________________________________________________________________________________

Improved, Quad, SPST Analog Switches

______________________________________________Timing Diagrams/Test Circuits

+15V

V+

V-

-15V

S



R

L

DS(ON)

DG441
DG442

R

L

D

V-

DG441
DG442

C
1nF

35pF

L

V

OUT

V

OUT

LOGIC

+3V

INPUT

0V

V

OUT

SWITCH

OUTPUT

0V

t

ON

LOGIC INPUT WAVEFORM IS INVERTED FOR SWITCHES 
THAT HAVE THE OPPOSITE LOGIC SENSE.

Figure 2. Switching Time

V

OUT

IN

DG441

50%

0.8 x V

OUT

t

OFF

t

< 20ns

f

< 20ns

t

r

0.8 x V

GND

V+

V

= V

OUT

D

( )

RL + r

+15V

S

INGND

SWITCH

INPUT

LOGIC
INPUT

V

+3V

GEN

OUT

∆V

OUT

OFFONOFF

D

V

D

IN

REPEAT TEST FOR CHANNELS 2, 3, AND 4.
CL (INCLUDES FIXTURE AND STRAY CAPACITANCE)

R

GEN

DG441/DG442

-15V

VIN = +3V

DG442

OFF OFFON

IN

Q = ∆V

OUT

× C

L

Figure 3. Charge Injection

+15V

10nF

+15V

10nF

DG441
DG442

SIGNAL

GENERATOR

NETWORK
ANALYZER

GND

V+

IN

0.8V or 2.4V

V-

10nF

-15V

10dBm

R

= 50Ω

GEN

R

L

D

S

SIGNAL

GENERATOR

NETWORK
ANALYZER

10dBm

R

= 50Ω

GEN

0.8V or 2.4V

D

IN1

S

R

L

V+

GND

S

IN2

D

V-

-15V

Figure 4. Off-Isolation Rejection Ratio Figure 5. Crosstalk (repeat for channels 3 and 4)

_______________________________________________________________________________________ 7

DG441
DG442

50Ω

0.8V or 2.4V

10nF

Improved, Quad, SPST Analog Switches

___________________Chip Topography__________________Timing Diagrams/

Test Circuits (continued)

IN2

10nF

+15V

D1

IN1

D2

GND

+V

IN

V-

10nF

-15V

D

CAPACITANCE

METER

DG441/DG442

f = 1MHz

S

Figure 6. Source/Drain-On/Off Capacitance

_Ordering Information (continued)

PART TEMP. RANGE PIN-PACKAGE

DG442CJ

DG442CY 0°C to +70°C 16 Narrow SO
DG442C/D 0°C to +70°C Dice*
DG442DJ -40°C to +85°C 16 Plastic DIP
DG442DY -40°C to +85°C 16 Narrow SO
DG442DK -40°C to +85°C 16 CERDIP
DG442AK

*

Contact factory for dice specifications.

**

Contact factory for availability and processing to MIL-STD-883B.

0°C to +70°C 16 Plastic DIP

-55°C to +125°C 16 CERDIP**

0.8V or 2.4V

S1

V-

GND

S4

D4

IN4

IN3

0.071"

(1.80mm)

D3

TRANSISTOR COUNT: 126
SUBSTRATE CONNECTED TO V+

S2

V+
N.C.

S3

0.091"

(2.31mm)

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.

8

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