Pin Configurations/Functional Diagrams/Truth Tables
_______________________________________________________________________________________ 1
General Description
Maxim’s redesigned DG441/DG442 analog switches now
feature on-resistance matching (4Ωmax) between
switches and guaranteed on-resistance flatness over the
signal range (9Ωmax). 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 tON and
less than 70ns for tOFF. These devices operate from a sin-
gle +10V to +30V supply, or bipolar ±4.5V to ±20V sup-
plies. 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 rDS(ON) Match Between Channels(4Ωmax)
♦Guaranteed rFLAT(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 rDS(ON) (85Ωmax)
♦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 4; 6/04
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
D2
S2
V+
V-
S1
D1
IN1
DG442 N.C.
S3
D3
IN3
IN4
D4
S4
GND
DIP/SO
THIN QFN THIN QFN
DIP/SO
DG442
LOGIC SWITCH
0
1
OFF
ON
SWITCHES SHOWN FOR LOGIC “0” INPUT
DG441
LOGIC SWITCH
0
1
ON
OFF
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN2
D2
S2
V+
V-
S1
D1
IN1
DG441 N.C.
S3
D3
IN3
IN4
D4
S4
GND
TOP VIEW
N.C. = Not Internally Connected
TOP VIEW
16
D1
15
IN1
14
IN2
13
D2
5
D4
6
IN4
7
IN3
8
D3
2V-
1S1
3GND
4
S4
11 V+
12 S2
10 N.C.
9S3
DG441
16
D1
15
IN1
14
IN2
13
D2
5
D4
6
IN4
7
IN3
8
D3
2V-
1S1
3GND
4
S4
11 V+
12 S2
10 N.C.
9S3
DG442
DG441/DG442
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
**Contact factory for availability and processing to MIL-STD-883B.
16 CERDIP-40°C to +85°C DG441DK
16 Narrow SO
-40°C to +85°C DG441DY
16 Plastic DIP-40°C to +85°C DG441DJ
Dice*0°C to +70°C DG441C/D
16 Narrow SO0°C to +70°C DG441CY
16 Plastic DIP0°C to +70°C
DG441CJ
PIN-PACKAGETEMP. RANGEPART
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.
16 Thin QFN
(5mm x 5mm)
-40°C to +85°C DG441ETE
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
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, GND = 0V, VINH = 2.4V, VINL = 0.8V, TA= TMIN to TMAX, unless otherwise noted.)
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V-
V+.......................................................................................44V
GND ...................................................................................25V
VL.................................................(GND - 0.3V) to (V+ + 0.3V)
Digital Inputs, VS, 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 (TA= +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW
Thin QFN (derate 33.3mW/°C above +70°C).............2667mW
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/DG442AK .....................................-65°C to +150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
V+ = 16.5V, V- = -16.5V,
VD= ±15.5V,
VS= ±15.5V
-0.50 0.08 0.50
ID(ON)
or
IS(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,
VS= ±15.5V
-.0.50 0.01 0.50
V+ = 16.5V, V- = -16.5V,
VD= 15.5V,
VS= ±15.5V
-0.50 0.01 0.50
ID(OFF)
Drain Off-Leakage Current
(Note 5) nA
V+ = 15V, V- = -15V,
VD= ±10V,
IS= -10mA
4
∆rDS(ON)
On-Resistance Match
Between Channels (Note 4)
VIN = 2.4V
Ω
CONDITIONS
Drain On-Leakage Current
(Note 5) nA
TA= +25°C
TA= TMAX A-20 20
nA-500 0.01 500IINL
Input Current with
Input Voltage Low
-5 5
TA= +25°C
TA= TMAX
C, D
nA-500 0.01 500IINH
Input Current with
Input Voltage High
5
50 85
rDS(ON)
Drain-Source On-Resistance
V-15 15VANALOG
Analog-Signal Range
IS(OFF)
Source Off-Leakage Current
(Note 5) nA
-20 20
TA= +25°C
TA= TMAX
C, D
TA= +25°C
TA= TMIN to TMAX
V+ = 15V, V- = -15V,
VD= 5V or -5V,
IS= -10mA
9
Ω
100
TA= +25°C
TA= TMIN to TMAX
rFLAT(ON)
On-Resistance Flatness
(Note 4) Ω
15
TA= +25°C
TA= TMIN to TMAX
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= TMIN to TMAX
TA= +25°C
All channels on or off, V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V
TA= +25°Cf = 1MHz, Figure 6
TA= +25°C
pF
TA= +25°C
TA= +25°C
CL= 1nF, VGEN = 0V,
RGEN = 0Ω, Figure 3
All channels on or off,
V+ = 16.5V, V- = -16.5V,
VIN = 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
CD(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 6CS(OFF)
Source Off-Capacitance
TA= +25°C
µA15 100I+Positive Supply Current
V±4.5 ±20.0V+, V-Power-Supply Range
150 250
tOFF
Turn-Off Time ns
90 120
VS= ±10V, RL= 1kΩ, Figure 2tON
µA
-1 -0.0001 1
I-Negative Supply Current
-5 5
Turn-On Time
DG442, VD= ±10V, Figure 2
µA-100 -15IGND
Ground Current
f = 1MHz, Figure 6CD(ON)
Drain On-Capacitance pF
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
16
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = 15V, V- = -15V, GND = 0V, VINH = 2.4V, VINL = 0.8V, TA= TMIN to TMAX, unless otherwise noted.)
SUPPLY
DYNAMIC
DG441/DG442
Improved, Quad, SPST Analog Switches
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = 12V, V- = 0V, GND = 0V, VINH = 2.4V, VINL = 0.8V, TA= TMIN to TMAX, unless otherwise noted.)
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
-15 0 15
-10 -5 510
ON-LEAKAGE CURRENTS
ON-LEAKAGE (nA)
-2
-1
0
1
2
3
4
VS, VD (V)
TA = +125°C
TA = +85°C
V+ = 15V
V- = -15V
-15 0 15
-10 -5 510
OFF-LEAKAGE CURRENTS
OFF-LEAKAGE (nA)
-1
0
2
1
VS, VD (V)
TA = +85°C
TA = +125°C
V+ = 15V
V- = -15V
SWITCHING THRESHOLD vs.
BIPOLAR SUPPLY VOLTAGE
VIN (V)
0
0.5
1.5
2.0
2.5
3.0
3.5
±5 ±10 ±15 ±20
BIPOLAR SUPPLY VOLTAGE (V)
MAX
MIN
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 speci-
fied analog range.
Note 5: Leakage parameters IS(OFF), ID(OFF), and ID(ON) are 100% tested at the maximum rated hot temperature and guaranteed
by correlation at +25°C.
Note 6: Off-Isolation Rejection Ratio = 20log (VD/VS), VD= output, VS= input to off switch.
Note 7: Between any two switches.
TA= +25°C
TA= TMIN to TMAX
µA
(Note 3)
TA= +25°C
µA
15 100All channels on or off, VIN = 0V or 5VI+
TA= TMIN to TMAX
Positive Supply Current
TA= +25°CCL= 1nF, VGEN = 0V
ns
V+ = 10.8V, VD= 3V, 8V,
IS= 1.0mA
60 200
QCharge Injection (Note 3) pC510
CONDITIONS
-5 5
VS= 8V, Figure 2tOFF
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 5VIGND
Ground Current
TA= +25°C
V012VANALOG
Analog Signal Range
10 30
I-Negative Supply Current µA
-1 -0.0001 1
V+
Ω
100 160
rDS(ON)
Drain-Source
On-Resistance 200
Power-Supply Range
VS= 8V, Figure 2tON
Turn-On Time ns
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
300 400
SWITCH
SUPPLY
DYNAMIC
DG441/DG442
Improved, Quad, SPST Analog Switches
_______________________________________________________________________________________ 5
____________________________Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
ON-RESISTANCE vs. VD AND
UNIPOLAR SUPPLY VOLTAGE
0
25
50
75
100
125
150
175
200
225
250
0 5 10 15 20
VD (V)
rDS(ON) (Ω)
V+ = 10V
V+ = 15V
V+ = 20V
ON-RESISTANCE vs. VD AND UNIPOLAR
SUPPLY VOLTAGE AND TEMPERATURE
0
25
50
75
100
125
150
rDS(ON) (Ω)
04 812
VD (V)
TA = +125°C
TA = +25°C
TA = -55°C
V+ = 12V
V- = 0V
ON-RESISTANCE vs. VD AND
BIPOLAR SUPPLY VOLTAGE
rDS(ON) (Ω)
30
60
90
120
150
180
-20 -10 0 +10 +20
VD (V)
±5V
±10V
±15V
±20V
0
-15 0 15
-10 -5 510
ON-RESISTANCE vs. VD AND
BIPOLAR VOLTAGE AND TEMPERATURE
rDS(ON) (Ω)
0
20
40
60
80
100
120
VD (V)
TA = +125°C
TA = -55°C
TA = +25°C
V+ = 15V, V- = -15V
SWITCHING TIMES vs.
BIPOLAR SUPPLY VOLTAGE
TIME (ns)
0
40
80
120
160
200
240
±5 ±10 ±15 ±20
BIPOLAR SUPPLY VOLTAGE (V)
tON
tOFF
SWITCHING TIMES vs.
UNIPOLAR SUPPLY VOLTAGE
TIME (ns)
0
50
100
150
200
250
300
350
10 15 20 25
UNIPOLAR SUPPLY VOLTAGE (V)
tON
tOFF
CHARGE INJECTION vs.
VD VOLTAGE (DUAL SUPPLY)
Q (pC)
-20
0
20
40
VD (V)
-15 -10 0 10 15
V+ = 15V
V- = -15V
CL = 1nF
CHARGE INJECTION vs.
VD VOLTAGE (SINGLE SUPPLY)
Q (pC)
-10
0
10
051015
VD (V)
V+ = 12V
V- = 0V
CL = 1nF
__________Applications Information
Operation with Supply Voltages
Other Than ±15V
Using supply voltages other than ±15V reduces the
analog signal range. The DG441/DG442 switches oper-
ate 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 maxi-
mum ratings because stresses beyond the listed rat-
ings 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 exter-
nal 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 _______________________________________________________________________________________
DIP/SO QFN
FUNCTION
2, 15, 10, 7 16, 13, 8, 5 Analog Switch Drain
Terminal
3, 14, 11, 6 1, 12, 9, 4 Analog Switch Source
Terminal
4 2 Negative-Supply Voltage
Input
5 3 Ground
12 10 Not Internally Connected
13 11
Positive-Supply Voltage
Input—Connected to
Substrate
V+
S
V-
D
Vg
Figure 1. Overvoltage Protection Using External Blocking Diodes
NAME
D1–D4
S1–S4
V-
GND
N.C.
V+
1, 16, 9, 8 15, 14, 7, 6 InputIN1–IN4
—EP Exposed Pad. Connect
PAD to V+.
PAD
PIN
DG441/DG442
Improved, Quad, SPST Analog Switches
_______________________________________________________________________________________ 7
tOFF
0.8 x VOUT
VOUT 0.8 x VOUT
tf < 20ns
tr < 20ns
50%
0V
0V
+3V
SWITCH
OUTPUT
LOGIC INPUT WAVEFORM IS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
tON
SWITCH
INPUT
LOGIC
INPUT
+3V
IN
D
+15V
V+
V-
-15V
RL35pF
VOUT
S
CL (INCLUDES FIXTURE AND STRAY CAPACITANCE)
GND
REPEAT TEST FOR CHANNELS 2, 3, AND 4.
VOUT = VDRL
RL + rDS(ON)
LOGIC
INPUT
VD
DG441
DG442
( )
∆VOUT
OFFONOFF
VOUT
IN
IN
OFF OFFON
Q = ∆VOUT × CL
-15V
V-
V+
INGND
S
+15V
RGEN
VGEN
VIN = +3V
CL
1nF
VOUT
D
DG441
DG442
DG441
DG442
Figure 2. Switching Time
Figure 3. Charge Injection
NETWORK
ANALYZER
SIGNAL
GENERATOR
RGEN = 50Ω
S
D
GND
RL
10dBm
10nF
V+
+15V
IN
0.8V or 2.4V
V-
-15V
10nF
DG441
DG442
NETWORK
ANALYZER
SIGNAL
GENERATOR
RGEN = 50Ω
0.8V or 2.4V
S
IN1
D
GND
RL
10dBm
10nF
V+
+15V
D
IN2
S
0.8V or 2.4V
50Ω
V-
-15V
10nF
DG441
DG442
Figure 4. Off-Isolation Rejection Ratio Figure 5. Crosstalk (repeat for channels 3 and 4)
______________________________________________Timing Diagrams/Test Circuits
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___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
DG441/DG442
Improved, Quad, SPST Analog Switches
PART TEMP. RANGE PIN-PACKAGE
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 -55°C to +125°C 16 CERDIP**
CAPACITANCE
METER
D
S
GND
10nF +15V
IN 0.8V or 2.4V
V-
-15V
10nF
+V
f = 1MHz
Timing Diagrams/
Test Circuits (continued)
Figure 6. Source/Drain-On/Off Capacitance
Ordering Information (continued)
*Contact factory for dice specifications.
**Contact factory for availability and processing to MIL-STD-883B.
DG442AK -55°C to +125°C 16 CERDIP**
DG442CJ 0°C to +70°C 16 Plastic DIP
DG442ETE -40°C to +85°C 16 Thin QFN
(5mm x 5mm)
