Pin Configurations/Functional Diagrams/Truth Tables
_______________________________________________________________________________________ 1
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 170ns for t
OFF
. These devices operate from a single +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
New Features
♦♦
Plug-In Upgrades for Industry-Standard DG441/DG442
♦♦
Improved r
DS(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
DS(ON)
(85Ω max)
♦♦
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
Ordering Information
Improved, Quad, SPST Analog Switches
19-4611; Rev 5; 5/09
DG441/DG442
Ordering Information continued at end of data sheet.
Note: Devices are available in both leaded and lead(Pb)-free
packaging. Specify lead-free by adding the + symbol at the
end of the part number when ordering.
*
Contact factory for dice specifications.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Sample-and-Hold Circuits
Communication Systems
Test Equipment
Battery-Operated Systems
Heads-Up Displays
Fax Machines
PBX, PABX
Guidance and Control
Systems
Audio-Signal Routing
Military Radios
Modems
PART TEMP RANGE PIN-PACKAGE
DG441CJ 0°C to +70°C 16 Plastic DIP
DG441CY 0°C to +70°C 16 Narrow SO
DG441C/D 0°C to +70°C Dice*
DG441DJ -40°C to +85°C 16 Plast ic DIP
DG441DY -40°C to +85°C 16 Narrow SO
TOP VIEW
1
IN1
2
D1
S1
3
V-
4
DG441
5
GND
6
S4
7
D4
IN4
8
DIP/SO
DG441
LOGIC SWITCH
0
1
SWITCHES SHOWN FOR LOGIC “0” INPUT
ON
OFF
16
IN2
D2
15
S2
14
13
V+
N.C.
12
11
S3
10
D3
9
IN3
1
IN1
2
D1
3
S1
V-
4
DG442
5
GND
6
S4
7
D4
8
IN4
DIP/SO
DG442
LOGIC SWITCH
0
OFF
1
N.C. = Not Internally Connected
ON
TOP VIEW
IN2
16
IN2
15
D2
14
S2
13
V+
12
N.C.
11
S3
10
D3
9
IN3
1S1
2V-
3GND
4
S4
*EP = EXPOSED PAD. CONNECT EXPOSED PAD TO V+.
IN1
16D115
DG441
*EP *EP
5D46
IN4
THIN QFN
D2
14
13
12 S2
11 V+
10 N.C.
9
7
8
D3
IN3
S4
S3
16D115
1S1
2V-
3GND
4
5D46
IN2
IN1
14
DG442
IN4
IN3
THIN QFN
D2
13
12 S2
11 V+
10 N.C.
9
S3
7
8
D3
2 _______________________________________________________________________________________
DG441/DG442
Improved, Quad, SPST 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, V
GND
= 0V, V
INH
= 2.4V, V
INL
= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted.)
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V-
V+.......................................................................................44V
GND ...................................................................................25V
V
L
.................................................(GND - 0.3V) to (V+ + 0.3V)
Digital Inputs, V
S
, VD (Note 1)......(V- - 2V) to (V+ + 2V) or 30mA
(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
A
= +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW
Thin QFN (derate 20.8mW/°C above +70°C).............1667mW
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, E/DG442D, E ...................................-40°C to +85°C
DG441AK, MY/DG442AK, MY .......................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
V+ = 16.5V, V- = -16.5V,
V
D
= ±15.5V,
V
S
= ±15.5V
-0.50 0.08 0.50
I
D(ON)
or
I
S(ON)
V+ = 13.5V, V- = -13.5V,
IS= -10mA,
VD= 8.5V or -8.5V
(Note 3)
VIN= 0.8V
V+ = 16.5V, V- = -16.5V,
VD= 15.5V,
V
S
= ±15.5V
-.0.50 0.01 0.50
V+ = 16.5V, V- = -16.5V,
VD= 15.5V,
V
S
= ±15.5V
-0.50 0.01 0.50
I
D(OFF)
Drain Off-Leakage Current
(Note 5)
nA
V+ = 15V, V- = -15V,
VD= ±10V,
IS= -10mA
4
Δr
DS(ON)
On-Resistance Match
Between Channels (Note 4)
VIN= 2.4V
Ω
CONDITIONS
Drain On-Leakage Current
(Note 5)
nA
TA= +25°C
TA= T
MAX
A -20 20
nA-500 0.01 500I
INL
Input Current with
Input Voltage Low
-5 5
TA= +25°C
TA= T
MAX
C, D
nA-500 0.01 500I
INH
Input Current with
Input Voltage High
5
50 85
r
DS(ON)
Drain-Source On-Resistance
V-15 15V
ANALOG
Analog-Signal Range
I
S(OFF)
Source Off-Leakage Current
(Note 5)
nA
-20 20
TA= +25°C
TA= T
MAX
C, D
TA= +25°C
TA= T
MIN
to T
MAX
V+ = 15V, V- = -15V,
VD= 5V or -5V,
IS= -10mA
9
Ω
100
TA= +25°C
TA= T
MIN
to T
MAX
r
FLAT(ON)
On-Resistance Flatness
(Note 4)
Ω
15
TA= +25°C
TA= T
MIN
to T
MAX
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
±
±
A
-5 5
-20 20A
-10 10C, D
Note 1: Signals on S, D, or IN exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings.
DIGITAL
SWITCH
DG441/DG442
Improved, Quad, SPST Analog Switches
_______________________________________________________________________________________ 3
TA= +25°C
TA= T
MIN
to T
MAX
TA= +25°C
All channels on or off, V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
TA= +25°Cf = 1MHz, Figure 6
TA= +25°C
pF
TA= +25°C
TA= +25°C
CL= 1nF, V
GEN
= 0V,
R
GEN
= 0Ω, Figure 3
All channels on or off,
V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
TA= +25°C
All channels on or off, V+ = 16.5V, V- = -16.5V,
VIN= 0V or 5V
CONDITIONS
110 170
QCharge Injection (Note 3) pC510
TA= +25°CDG441, VD= ±10V, Figure 2
ns
4
C
D(OFF)
Drain Off-Capacitance pF4
TA= +25°C
RL= 50Ω, CL= 5pF,
f = 1MHz, Figure 5
dB60
Crosstalk (Note 7) dB-100
RL= 50Ω, CL= 5pF,
f = 1MHz, Figure 4
OIRR
Off-Isolation Rejection
Ratio (Note 6)
f = 1MHz, Figure 6C
S(OFF)
Source Off-Capacitance
TA= +25°C
µA15 100I+Positive Supply Current
V±4.5 ±20.0V+, V-Power-Supply Range
150 250
t
OFF
Turn-Off Time ns
90 120
VS= ±10V, RL= 1kΩ, Figure 2t
ON
µA
-1 -0.0001 1
I-Negative Supply Current
-5 5
Turn-On Time
DG442, VD= ±10V, Figure 2
µA-100 -15I
GND
Ground Current
f = 1MHz, Figure 6C
D(ON)
Drain On-Capacitance pF
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
16
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = 15V, V- = -15V, V
GND
= 0V, V
INH
= 2.4V, V
INL
= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted.)
SUPPLY
DYNAMIC
DG441/DG442
Improved, Quad, SPST Analog Switches
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = 12V, V- = 0V, V
GND
= 0V, V
INH
= 2.4V, V
INL
= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted.)
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
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
S(OFF)
, I
D(OFF)
, and I
D(ON)
are 100% tested at the maximum rated hot temperature and guaranteed
by correlation at +25°C.
Note 6: Off-Isolation Rejection Ratio = 20log (V
D/VS
), VD= output, VS= input to off switch.
Note 7: Between any two switches.
TA= +25°C
TA= T
MIN
to T
MAX
µA
(Note 3)
TA= +25°C
µA
15 100All channels on or off, VIN= 0V or 5VI+
TA= T
MIN
to T
MAX
Positive Supply Current
TA= +25°CCL= 1nF, V
GEN
= 0V
ns
V+ = 10.8V, VD= 3V, 8V,
I
S
= 1.0mA
60 200
QCharge Injection (Note 3) pC510
CONDITIONS
-5 5
VS= 8V, Figure 2t
OFF
Turn-Off Time
TA= +25°C
All channels on or off,
VIN= 0V or 5V
V
-100 -15All channels on or off, VIN= 0V or 5VI
GND
Ground Current
TA= +25°C
V012V
ANALOG
Analog Signal Range
10 30
I-Negative Supply Current µA
-1 -0.0001 1
V+
Ω
100 160
r
DS(ON)
Drain-Source
On-Resistance
200
Power-Supply Range
VS= 8V, Figure 2t
ON
Turn-On Time ns
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
300 400
SWITCH
SUPPLY
DYNAMIC
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
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)
DG441/DG442
Improved, Quad, SPST Analog Switches
_______________________________________________________________________________________
5
____________________________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
04 812
TA = +125°C
TA = +25°C
TA = -55°C
VD (V)
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
200
160
120
TIME (ns)
BIPOLAR SUPPLY VOLTAGE
t
ON
80
40
0
±5 ±10 ±15 ±20
BIPOLAR SUPPLY VOLTAGE (V)
120
100
(Ω)
DS(ON)
r
350
300
250
200
TIME (ns)
150
t
OFF
100
ON-RESISTANCE vs. VD AND
BIPOLAR VOLTAGE AND TEMPERATURE
V+ = 15V, V- = -15V
80
60
40
20
0
-15 0 15
-10
TA = +125°C
TA = +25°C
-5
VD (V)
TA = -55°C
510
SWITCHING TIMES vs.
UNIPOLAR SUPPLY VOLTAGE
t
ON
t
50
0
10 15 20 25
UNIPOLAR SUPPLY VOLTAGE (V)
OFF
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
Q (pC)
-10
10
0
CHARGE INJECTION vs.
VD VOLTAGE (SINGLE SUPPLY)
V+ = 12V
V- = 0V
CL = 1nF
0 5 10 15
(V)
V
D
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
graphs show typical
on-resistance with ±20V, ±15V, ±10V, and ±5V sup-
plies. (Switching times increase by a factor of two or
more for operation at ±5V.)
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.
Pin Description
DG441/DG442
Improved, Quad, SPST Analog Switches
6 _______________________________________________________________________________________
Figure 1. Overvoltage Protection Using External Blocking Diodes
PIN
DIP/ SO
1, 16, 9, 815, 14,
2, 15,
10, 7
3, 14,
11, 6
4 2 V- Negative-Supply Voltage Input
5 3 GND Ground
12 10 N.C. Not Internally Connected
13 11 V+
——EP
THIN
QFN- E P
7, 6
16, 13,
8, 5
1, 12, 9,
NAME FUNCTION
IN1–IN4 Input
D1–D4 Analog Switch Drain Terminal
S1–S4
4
Analog Switch Source
Terminal
Positive-Supply Voltage
Input—Connected to Substrate
Exposed Pad. Connect EP to
V+. Do not use EP as a sole
V+ connection. (Thin QFN
package only.)
V+
D
S
V
g
V-
DG441/DG442
Improved, Quad, SPST Analog Switches
_______________________________________________________________________________________ 7
Figure 2. Switching Time
Figure 3. Charge Injection
Figure 4. Off-Isolation Rejection Ratio Figure 5. Crosstalk (repeat for channels 3 and 4)
______________________________________________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.
V
OUT
IN
DG441
50%
0.8 x V
OUT
t
OFF
t
< 20ns
f
< 20ns
t
r
0.8 x V
GND
V
OUT
S
V+
= V
D
( )
RL + r
+15V
INGND
SWITCH
INPUT
LOGIC
INPUT
OUT
ΔV
OUT
OFFONOFF
+3V
V
GEN
D
V
D
IN
REPEAT TEST FOR CHANNELS 2, 3, AND 4.
CL (INCLUDES FIXTURE AND STRAY CAPACITANCE)
R
GEN
-15V
VIN = +3V
DG442
OFF OFFON
IN
Q = ΔV
OUT
× C
L
10nF
+15V
10nF
+15V
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
DG441
DG442
50Ω
0.8V or 2.4V
10nF
DG441/DG442
Improved, Quad, SPST Analog Switches
8 _______________________________________________________________________________________
Timing Diagrams/
Test Circuits (continued)
Figure 6. Source/Drain-On/Off Capacitance
Ordering Information (continued)
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
16 Plastic DIP P16-1
21-0043
16 Narrow SO S16-3
21-0041
16 CERDIP J16-3
21-0045
16 Thin QFN-EP (5mm x 5mm) T1655-2
21-0140
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
Note: Devices are available in both leaded and lead(Pb)-free
packaging. Specify lead-free by adding the + symbol at the
end of the part number when ordering.
*
Contact factory for dice specifications.
**
EP = Exposed pad.
***
Contact factory for availability and processing to MIL-STD-
883B. Not available in lead-free.
10nF
D
CAPACITANCE
METER
f = 1MHz
S
GND
+15V
+V
V-
-15V
PART TEMP RANGE PIN-PACKAGE
DG441DK -40°C to +85°C 16 CERDIP
DG441ETE -40°C to +85°C 16 Thin QFN-EP**
DG441AK -55°C to +125°C 16 CERDIP***
DG441MY/PR -55°C to +125°C 16 Narrow SO
DG442CJ 0°C to +70°C 16 Plastic DIP
IN
0.8V or 2.4V
10nF
DG442CY 0°C to +70°C 16 Narrow SO
DG442C/D 0°C to +70°C Dice*
DG442DJ -40°C to +85°C 16 Plast ic DIP
DG442DY -40°C to +85°C 16 Narrow SO
DG442DK -40°C to +85°C 16 CERDIP
DG442ETE -40°C to +85°C 16 Thin QFN-EP**
DG442AK -55°C to +125°C 16 CERDIP***
DG442MY/PR -55°C to +125°C 16 Narrow SO
DG441/DG442
Improved, Quad, 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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________
9
© 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
Revision History
REVISION
NUMBER
5 5/09 Added ruggedized plast ic. 1, 2, 6, 8
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
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