Maxim DG441 Improved, quad, spst analog switch Datasheet

19-4611; Rev 5; 5/09
Improved, Quad, SPST Analog Switches
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
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
tON and less than 170ns for tOFF. 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.
Existing Features
♦ Low rDS(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
Applications
Sample-and-Hold Circuits
Communication Systems
Test Equipment
Battery-Operated Systems
Heads-Up Displays
Fax Machines
PART
PBX, PABX
Guidance and Control
Systems
Audio-Signal Routing
Military Radios
Modems
TEMP RANGE
PIN-PACKAGE
16 Plastic DIP
DG441CJ
0°C to +70°C
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
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.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
TOP VIEW
IN1
1
16
IN2
IN1
1
16
IN2
D1
2
15
D2
D1
2
15
D2
S1
3
14
S2
S1
3
14
S2
V-
4
13
V+
V-
4
13
V+
GND
5
12
N.C.
GND
5
12
N.C.
DG441
DG442
S4
6
11
S3
S4
6
11
S3
D4
7
10
D3
D4
7
10
D3
IN4
8
9
IN3
IN4
8
9
IN3
DIP/SO
DIP/SO
DG441
1
V-
2
IN1
IN2
D2
D1
IN1
IN2
D2
16
15
14
13
16
15
14
13
LOGIC
SWITCH
LOGIC
SWITCH
0
1
ON
OFF
0
1
OFF
ON
N.C. = Not Internally Connected
12
S2
S1
1
11
V+
V-
2
DG441
GND
10
N.C.
GND
3
*EP
S4
S2
11
V+
10
N.C.
9
S3
*EP
9
4
D4
12
DG442
3
5
DG442
SWITCHES SHOWN FOR LOGIC “0” INPUT
S1
D1
S3
S4
4
6
7
8
5
IN4
IN3
D3
D4
THIN QFN
6
7
8
IN4
IN3
D3
THIN QFN
*EP = EXPOSED PAD. CONNECT EXPOSED PAD TO V+.
_______________________________________________________________________________________
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.
1
DG441/DG442
General Description
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to VV+.......................................................................................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 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
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
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, VGND = 0V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
(Note 2)
MAX
UNITS
SWITCH
Analog-Signal Range
Drain-Source On-Resistance
VANALOG
rDS(ON)
(Note 3)
-15
V+ = 13.5V, V- = -13.5V, TA = +25°C
IS = -10mA,
TA = TMIN to TMAX
VD = 8.5V or -8.5V
15
50
85
100
On-Resistance Match
Between Channels (Note 4)
ΔrDS(ON)
V+ = 15V, V- = -15V,
VD = ±10V,
IS = -10mA
TA = +25°C
4
TA = TMIN to TMAX
5
On-Resistance Flatness
(Note 4)
V+ = 15V, V- = -15V,
VD = 5V or -5V,
IS = -10mA
TA = +25°C
9
rFLAT(ON)
TA = TMIN to TMAX
15
Drain Off-Leakage Current
(Note 5)
Drain On-Leakage Current
(Note 5)
Ω
Ω
Ω
-0.50
TA = +25°C
V+ = 16.5V, V- = -16.5V,
VD = 15.5V,
C, D
TA = TMAX
VS = ±15.5V
A
-.0.50
TA = +25°C
V+ = 16.5V, V- = -16.5V,
VD = ±15.5V,
C, D
TA = TMAX
VS = ±15.5V
A
-0.50
IINH
VIN = 2.4V
-500
0.01
500
nA
IINL
VIN = 0.8V
-500
0.01
500
nA
ID(OFF)
ID(ON)
or
IS(ON)
0.01
V
TA = +25°C
V+ = 16.5V, V- = -16.5V,
VD = 15.5V,
C, D
TA = TMAX
VS = ±15.5V
A
IS(OFF)
±
Source Off-Leakage Current
(Note 5)
±
DG441/DG442
Improved, Quad, SPST Analog Switches
0.50
-5
5
-20
20
0.01
0.50
-5
5
-20
20
0.08
nA
nA
0.50
-10
10
-20
20
nA
DIGITAL
Input Current with
Input Voltage High
Input Current with
Input Voltage Low
2
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches
(V+ = 15V, V- = -15V, VGND = 0V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
(Note 2)
MAX
UNITS
SUPPLY
Power-Supply Range
V+, V-
±4.5
Positive Supply Current
I+
All channels on or off, V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V
Negative Supply Current
I-
All channels on or off,
V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V
Ground Current
IGND
TA = +25°C
-1
TA = TMIN to TMAX
-5
±20.0
V
15
100
µA
-0.0001
1
µA
All channels on or off, V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V
-100
5
-15
µA
DYNAMIC
Turn-On Time
tON
Turn-Off Time
tOFF
Charge Injection (Note 3)
Off-Isolation Rejection
Ratio (Note 6)
VS = ±10V, RL = 1kΩ, Figure 2 TA = +25°C
150
250
ns
DG441, VD = ±10V, Figure 2
TA = +25°C
90
120
DG442, VD = ±10V, Figure 2
TA = +25°C
110
170
Q
CL = 1nF, VGEN = 0V,
RGEN = 0Ω, Figure 3
TA = +25°C
5
10
OIRR
RL = 50Ω, CL = 5pF,
f = 1MHz, Figure 4
TA = +25°C
60
dB
RL = 50Ω, CL = 5pF,
f = 1MHz, Figure 5
TA = +25°C
-100
dB
Crosstalk (Note 7)
ns
pC
Source Off-Capacitance
CS(OFF)
f = 1MHz, Figure 6
TA = +25°C
4
pF
Drain Off-Capacitance
CD(OFF)
f = 1MHz, Figure 6
TA = +25°C
4
pF
Drain On-Capacitance
CD(ON)
f = 1MHz, Figure 6
TA = +25°C
16
pF
_______________________________________________________________________________________
3
DG441/DG442
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = 12V, V- = 0V, VGND = 0V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
MIN
CONDITIONS
TYP
(Note 2)
MAX
UNITS
SWITCH
Analog Signal Range
VANALOG
Drain-Source
On-Resistance
rDS(ON)
(Note 3)
0
V+ = 10.8V, VD = 3V, 8V,
IS = 1.0mA
TA = +25°C
12
100
V
160
Ω
TA = TMIN to TMAX
200
SUPPLY
Power-Supply Range
V+
Positive Supply Current
I+
Negative Supply Current
Ground Current
IIGND
10
All channels on or off, VIN = 0V or 5V
All channels on or off,
VIN = 0V or 5V
TA = +25°C
-1
TA = TMIN to TMAX
-5
All channels on or off, VIN = 0V or 5V
-100
30
V
15
100
µA
-0.0001
1
5
-15
µA
µA
DYNAMIC
Turn-On Time
tON
VS = 8V, Figure 2
TA = +25°C
300
400
Turn-Off Time
tOFF
VS = 8V, Figure 2
TA = +25°C
60
200
ns
CL = 1nF, VGEN = 0V
TA = +25°C
5
10
pC
Charge Injection (Note 3)
Q
ns
Note 2: Typical values are for design aid only, are not guaranteed, and are not subject to production testing. The algebraic convention, 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 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.
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
2
4
TA = +125°C
TA = +85°C
0
3.0
1
2.5
TA = +125°C
VIN (V)
2
1
3.5
V+ = 15V
V- = -15V
V+ = 15V
V- = -15V
OFF-LEAKAGE (nA)
3
SWITCHING THRESHOLD vs.
BIPOLAR SUPPLY VOLTAGE
OFF-LEAKAGE CURRENTS
ON-LEAKAGE CURRENTS
ON-LEAKAGE (nA)
DG441/DG442
Improved, Quad, SPST Analog Switches
4
2.0
TA = +85°C
0
MIN
1.5
-1
-2
-15
MAX
0.5
-1
-10
-5
5
0
VS, VD (V)
10
15
0
-15
-10
-5
5
0
VS, VD (V)
10
15
±5
±10
±15
BIPOLAR SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
±20
Improved, Quad, SPST Analog Switches
ON-RESISTANCE vs. VD AND
BIPOLAR SUPPLY VOLTAGE
ON-RESISTANCE vs. VD AND
UNIPOLAR SUPPLY VOLTAGE
ON-RESISTANCE vs. VD AND
BIPOLAR VOLTAGE AND TEMPERATURE
250
V+ = 15V, V- = -15V
180
225
200
120
150
100
150
125
V+ = 10V
100
V+ = 15V
±5V
120
90
50
0
5
10
15
-20
20
TA = +25°C
-10
0
+10
TA = -55°C
0
+20
-15
-10
10
0
VD (V)
ON-RESISTANCE vs. VD AND UNIPOLAR
SUPPLY VOLTAGE AND TEMPERATURE
SWITCHING TIMES vs.
BIPOLAR SUPPLY VOLTAGE
SWITCHING TIMES vs.
UNIPOLAR SUPPLY VOLTAGE
240
350
200
300
TA = +125°C
125
TA = +25°C
TA = -55°C
120
TIME (ns)
75
tON
200
150
80
50
V+ = 12V
V- = 0V
40
0
0
4
8
12
tOFF
50
±5
VD (V)
±10
±15
0
±20
10
BIPOLAR SUPPLY VOLTAGE (V)
CHARGE INJECTION vs.
VD VOLTAGE (DUAL SUPPLY)
40
15
20
UNIPOLAR SUPPLY VOLTAGE (V)
25
CHARGE INJECTION vs.
VD VOLTAGE (SINGLE SUPPLY)
10
V+ = 15V
V- = -15V
CL = 1nF
V+ = 12V
V- = 0V
CL = 1nF
20
Q (pC)
Q (pC)
0
tON
100
tOFF
25
15
250
160
TIME (ns)
100
-5
5
VD (V)
VD (V)
150
rDS(ON) (Ω)
TA = +125°C
60
20
±20V
0
0
80
40
30
V+ = 20V
25
±10V
±15V
60
75
rDS(ON) (Ω)
rDS(ON) (Ω)
rDS(ON) (Ω)
175
0
0
-20
-10
-15
-10
0
VD (V)
10
15
0
5
10
15
VD (V)
_______________________________________________________________________________________
5
DG441/DG442
____________________________Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
DG441/DG442
Improved, Quad, SPST Analog Switches
Pin Description
plies. (Switching times increase by a factor of two or
more for operation at ±5V.)
PIN
NAME
FUNCTION
DIP/SO
THIN
QFN-EP
1, 16, 9,
8
15, 14,
7, 6
IN1–IN4 Input
2, 15,
10, 7
16, 13,
8, 5
D1–D4
Analog Switch Drain Terminal
3, 14,
11, 6
1, 12, 9,
4
S1–S4
Analog Switch Source
Terminal
4
2
V-
Negative-Supply Voltage Input
5
3
GND
Ground
12
10
N.C.
Not Internally Connected
13
11
V+
Positive-Supply Voltage
Input—Connected to Substrate
EP
Exposed Pad. Connect EP to
V+. Do not use EP as a sole
V+ connection. (Thin QFN
package only.)
—
—
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+
Applications Information
D
S
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-
6
Vg
V-
Figure 1. Overvoltage Protection Using External Blocking Diodes
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches
+15V
LOGIC
INPUT
DG441
DG442
+3V
tf < 20ns
tr < 20ns
50%
V+
SWITCH
INPUT
S
D
VD
0V
VOUT
IN
RL
tOFF
VOUT
SWITCH
OUTPUT
0.8 x VOUT
0.8 x VOUT
GND
LOGIC
INPUT
+3V
35pF
V-
-15V
0V
REPEAT TEST FOR CHANNELS 2, 3, AND 4.
tON
CL (INCLUDES FIXTURE AND STRAY CAPACITANCE)
RL
VOUT = VD
RL + rDS(ON)
(
LOGIC INPUT WAVEFORM IS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
)
Figure 2. Switching Time
ΔVOUT
+15V
DG441
DG442
V+
RGEN
VOUT
IN
DG441
OFF
ON
OFF
S
D
OFF
ON
CL
1nF
VGEN
GND
IN
DG442
VOUT
IN
V-15V
VIN = +3V
OFF
Q = ΔVOUT × CL
Figure 3. Charge Injection
10nF
+15V
10nF
+15V
DG441
DG442
SIGNAL
GENERATOR
10dBm
SIGNAL
GENERATOR
V+
D
DG441
DG442
RGEN = 50Ω
10dBm
50Ω
S
RGEN = 50Ω
0.8V or 2.4V
IN
0.8V or 2.4V
S
NETWORK
ANALYZER
V+
D
GND
V-
RL
-15V
Figure 4. Off-Isolation Rejection Ratio
10nF
IN2
IN1
0.8V or 2.4V
NETWORK
ANALYZER
D
S
GND
V-
RL
10nF
-15V
Figure 5. Crosstalk (repeat for channels 3 and 4)
_______________________________________________________________________________________
7
DG441/DG442
______________________________________________Timing Diagrams/Test Circuits
Improved, Quad, SPST Analog Switches
DG441/DG442
Timing Diagrams/
Test Circuits (continued)
10nF
Ordering Information (continued)
PART
+15V
+V
D
IN
CAPACITANCE
METER
0.8V or 2.4V
S
f = 1MHz
GND
V-
10nF
-15V
Figure 6. Source/Drain-On/Off Capacitance
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
DG441MY/PR
16 CERDIP***
-55°C to +125°C
16 Narrow SO
DG442CJ
0°C to +70°C
16 Plastic DIP
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
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
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-STD883B. Not available in lead-free.
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
8
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
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches
REVISION
NUMBER
REVISION
DATE
5
5/09
DESCRIPTION
Added ruggedized plastic.
PAGES
CHANGED
1, 2, 6, 8
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.
DG441/DG442
Revision History
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