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19-4611; Rev 5; 5/09
Improved, Quad, SPST Analog Switches
General Description
Maxim's redesigned DG441/DG442 analog switches now feature on-resistance matching (4 max) between switches and guaranteed on-resistance flatness over the signal range (9 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 +85C). 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.
New Features
Plug-In Upgrades for Industry-Standard DG441/DG442 Improved rDS(ON) Match Between Channels(4max) Guaranteed rFLAT(ON) Over Signal Range (9max) Improved Charge Injection (10pC max) Improved Off-Leakage Current Over Temperature (<5nA at +85C) Withstand Electrostatic Discharge (2000V min) per Method 3015.7
DG441/DG442
Existing Features
Low rDS(ON) (85 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
PART DG441CJ DG441CY DG441C/D DG441DJ DG441DY TEMP RANGE 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C PIN-PACKAGE 16 Plastic DIP 16 Narrow SO Dice* 16 Plastic DIP 16 Narrow SO
Applications
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
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
D1
IN1 D1 S1 VGND S4 D4 IN4 1 2 3 4 5 6 7 8 16 15 14 13 IN2 D2 S2 V+ N.C. S3 D3 IN3 IN1 D1 S1 VGND S4 D4 IN4 1 2 3 4 5 6 7 8 16 15 14 13 IN2 D2 S2 V+ N.C. S3 D3 IN3
IN1
IN2 14
D2
D1 16
IN1
IN2 14
D2
16
15
13
15
13
S1 VGND S4
1 2
12 11
S2 V+ N.C. S3
S1 VGND S4
1 2
12 11
S2 V+ N.C. S3
DG441
12 11 10 9
DG442
12 11 10 9
DG441
3
*EP
DG442
10 9 3
*EP
10 9 5 D4 6
IN4
4 5 D4 6
IN4
4 7 IN3 8
D3
DIP/SO
DG441 LOGIC 0 1 SWITCH ON OFF
DIP/SO
DG442 LOGIC 0 1 SWITCH OFF ON
7 IN3
8
D3
THIN QFN
*EP = EXPOSED PAD. CONNECT EXPOSED PAD TO V+.
THIN QFN
SWITCHES SHOWN FOR LOGIC "0" INPUT
N.C. = Not Internally Connected
_______________________________________________________________________________________
1
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.
Improved, Quad, SPST Analog Switches DG441/DG442
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 = +70C) Plastic DIP (derate 10.53mW/C above +70C) ..........842mW Thin QFN (derate 20.8mW/C above +70C).............1667mW Narrow SO (derate 8.70mW/C above +70C) ............696mW CERDIP (derate 10.00mW/C above +70C) ...............800mW Operating Temperature Ranges DG441C/DG442C ...............................................0C to +70C DG441D, E/DG442D, E ...................................-40C to +85C DG441AK, MY/DG442AK, MY .......................-55C to +125C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C
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 SWITCH Analog-Signal Range Drain-Source On-Resistance VANALOG rDS(ON) (Note 3) V+ = 13.5V, V- = -13.5V, TA = +25C IS = -10mA, TA = TMIN to TMAX VD = 8.5V or -8.5V V+ = 15V, V- = -15V, VD = 10V, IS = -10mA V+ = 15V, V- = -15V, VD = 5V or -5V, IS = -10mA TA = +25C TA = TMIN to TMAX TA = +25C TA = TMIN to TMAX -0.50 -5 -20 -.0.50 -5 -20 -0.50 -10 -20 0.08 0.01 0.01 -15 50 15 85 100 4 5 9 15 0.50 5 20 0.50 5 20 0.50 10 20 nA nA nA V SYMBOL CONDITIONS MIN TYP (Note 2) MAX UNITS
On-Resistance Match Between Channels (Note 4) On-Resistance Flatness (Note 4)
rDS(ON)
rFLAT(ON)
IS(OFF)
ID(OFF)
Drain On-Leakage Current (Note 5) DIGITAL Input Current with Input Voltage High Input Current with Input Voltage Low
ID(ON)
or
IS(ON)
TA = +25C V+ = 16.5V, V- = -16.5V, VD = 15.5V, C, D TA = TMAX VS = 15.5V A
IINH IINL
VIN = 2.4V VIN = 0.8V
2
_______________________________________________________________________________________
Drain Off-Leakage Current (Note 5)
TA = +25C V+ = 16.5V, V- = -16.5V, VD = 15.5V, C, D TA = TMAX VS = 15.5V A
Source Off-Leakage Current (Note 5)
TA = +25C V+ = 16.5V, V- = -16.5V, VD = 15.5V, C, D TA = TMAX VS = 15.5V A
-500 -500
0.01 0.01
500 500
nA nA
Improved, Quad, SPST Analog Switches
ELECTRICAL CHARACTERISTICS--Dual Supplies (continued)
(V+ = 15V, V- = -15V, VGND = 0V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SUPPLY Power-Supply Range Positive Supply Current V+, VI+ All channels on or off, 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 TA = +25C TA = TMIN to TMAX -1 -5 -100 -15 4.5 15 -0.0001 20.0 100 1 A 5 A V A SYMBOL CONDITIONS MIN TYP (Note 2) MAX UNITS
DG441/DG442
Negative Supply Current
I-
Ground Current DYNAMIC Turn-On Time Turn-Off Time Charge Injection (Note 3) Off-Isolation Rejection Ratio (Note 6) Crosstalk (Note 7) Source Off-Capacitance Drain Off-Capacitance Drain On-Capacitance
IGND
All channels on or off, V+ = 16.5V, V- = -16.5V, VIN = 0V or 5V
tON tOFF Q OIRR
VS = 10V, RL = 1k, Figure 2 TA = +25C DG441, VD = 10V, Figure 2 DG442, VD = 10V, Figure 2 CL = 1nF, VGEN = 0V, RGEN = 0, Figure 3 RL = 50, CL = 5pF, f = 1MHz, Figure 4 RL = 50, CL = 5pF, f = 1MHz, Figure 5 TA = +25C TA = +25C TA = +25C TA = +25C TA = +25C TA = +25C TA = +25C TA = +25C
150 90 110 5 60 -100 4 4 16
250 120 170 10
ns ns pC dB dB pF pF pF
CS(OFF) CD(OFF) CD(ON)
f = 1MHz, Figure 6 f = 1MHz, Figure 6 f = 1MHz, Figure 6
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3
Improved, Quad, SPST Analog Switches DG441/DG442
ELECTRICAL CHARACTERISTICS--Single Supply
(V+ = 12V, V- = 0V, VGND = 0V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SWITCH Analog Signal Range Drain-Source On-Resistance SUPPLY Power-Supply Range Positive Supply Current Negative Supply Current Ground Current DYNAMIC Turn-On Time Turn-Off Time Charge Injection (Note 3) tON tOFF Q VS = 8V, Figure 2 VS = 8V, Figure 2 CL = 1nF, VGEN = 0V TA = +25C TA = +25C TA = +25C 300 60 5 400 200 10 ns ns pC V+ I+ IIGND All channels on or off, VIN = 0V or 5V All channels on or off, VIN = 0V or 5V TA = +25C TA = TMIN to TMAX -1 -5 -100 -15 10 15 -0.0001 30 100 1 5 V A A A VANALOG rDS(ON) (Note 3) V+ = 10.8V, VD = 3V, 8V, IS = 1.0mA TA = +25C TA = TMIN to TMAX 0 100 12 160 200 V SYMBOL CONDITIONS MIN TYP (Note 2) MAX UNITS
All channels on or off, VIN = 0V or 5V
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 +25C. 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 = +25C, unless otherwise noted.)
ON-LEAKAGE CURRENTS
4 3 ON-LEAKAGE (nA) 2 1 0 -1 -2 -15 -1 -10 -5 5 0 VS, VD (V) 10 15 -15 -10 -5 5 0 VS, VD (V) 10 15 TA = +125C TA = +85C V+ = 15V V- = -15V OFF-LEAKAGE (nA) 1 VIN (V) TA = +125C TA = +85C 1.5 0.5 0 MIN 2 V+ = 15V V- = -15V
OFF-LEAKAGE CURRENTS
3.5 3.0 2.5 2.0
SWITCHING THRESHOLD vs. BIPOLAR SUPPLY VOLTAGE
MAX
0
5
10
15
20
BIPOLAR SUPPLY VOLTAGE (V)
4
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches
____________________________Typical Operating Characteristics (continued)
(TA = +25C, unless otherwise noted.)
ON-RESISTANCE vs. VD AND UNIPOLAR SUPPLY VOLTAGE
250 225 200 175 rDS(ON) () rDS(ON) () 150 125 100 75 50 25 0 0 5 10 VD (V) 15 20 V+ = 20V V+ = 10V V+ = 15V rDS(ON) () 120 90 60 30 0 -20 -10 0 VD (V) +10 +20 15V 10V 5V 180 150 V+ = 15V, V- = -15V 120 100 80 60 TA = +25C 40 20V 20 0 -15 -10 -5 0 VD (V) 5 10 15 TA = -55C TA = +125C
DG441/DG442
ON-RESISTANCE vs. VD AND BIPOLAR SUPPLY VOLTAGE
ON-RESISTANCE vs. VD AND BIPOLAR VOLTAGE AND TEMPERATURE
ON-RESISTANCE vs. VD AND UNIPOLAR SUPPLY VOLTAGE AND TEMPERATURE
150 TA = +125C 125 100 rDS(ON) () 75 50 25 0 0 4 VD (V) 8 12 V+ = 12V V- = 0V TA = +25C TIME (ns) 200 160 240
SWITCHING TIMES vs. BIPOLAR SUPPLY VOLTAGE
350 300 250 TIME (ns) 200 150 100 50 0
SWITCHING TIMES vs. UNIPOLAR SUPPLY VOLTAGE
TA = -55C
120 80
tON tOFF
tON tOFF
40 0
5
10
15
20
10
BIPOLAR SUPPLY VOLTAGE (V)
15 20 UNIPOLAR SUPPLY VOLTAGE (V)
25
40
CHARGE INJECTION vs. VD VOLTAGE (DUAL SUPPLY)
V+ = 15V V- = -15V CL = 1nF
10
CHARGE INJECTION vs. VD VOLTAGE (SINGLE SUPPLY)
V+ = 12V V- = 0V CL = 1nF
20 Q (pC) Q (pC) 0 -20 -15 -10 0 VD (V) 10 15
0
-10 0 5 VD (V) 10 15
_______________________________________________________________________________________
5
Improved, Quad, SPST Analog Switches DG441/DG442
Pin Description
PIN DIP/SO 1, 16, 9, 8 2, 15, 10, 7 3, 14, 11, 6 4 5 12 13 THIN QFN-EP 15, 14, 7, 6 16, 13, 8, 5 1, 12, 9, 4 2 3 10 11 NAME FUNCTION
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.
IN1-IN4 Input D1-D4 S1-S4 VGND N.C. V+ Analog Switch Drain Terminal Analog Switch Source Terminal Negative-Supply Voltage Input Ground Not Internally Connected 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+
--
--
EP
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 supVg
D
S
V-
Figure 1. Overvoltage Protection Using External Blocking Diodes
6
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches
______________________________________________Timing Diagrams/Test Circuits
+15V LOGIC INPUT +3V 50% 0V tOFF VOUT SWITCH OUTPUT LOGIC INPUT +3V GND Vtf < 20ns tr < 20ns SWITCH INPUT V+ VD D IN S
DG441/DG442
DG441 DG442
VOUT RL 35pF
0.8 x VOUT
0.8 x VOUT
-15V REPEAT TEST FOR CHANNELS 2, 3, AND 4. CL (INCLUDES FIXTURE AND STRAY CAPACITANCE) RL VOUT = VD RL + rDS(ON)
0V tON LOGIC INPUT WAVEFORM IS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE.
(
)
Figure 2. Switching Time
VOUT VOUT IN DG441 RGEN
+15V V+ S D
DG441 DG442
VOUT CL 1nF
OFF
ON
OFF
VGEN GND IN V-15V VIN = +3V
OFF IN DG442
ON Q = VOUT x CL
OFF
Figure 3. Charge Injection
+15V +15V
10nF
10nF
DG441 DG442
SIGNAL GENERATOR 10dBm D V+ SIGNAL GENERATOR 10dBm V+ D S
DG441 DG442
50
RGEN = 50 IN 0.8V or 2.4V NETWORK ANALYZER RL -15V S GND V10nF
RGEN = 50 0.8V or 2.4V IN1 S GND RL -15V VIN2 0.8V or 2.4V NETWORK ANALYZER D 10nF
Figure 4. Off-Isolation Rejection Ratio
Figure 5. Crosstalk (repeat for channels 3 and 4)
7
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches DG441/DG442
Timing Diagrams/ Test Circuits (continued)
10nF +15V
Ordering Information (continued)
PART DG441DK DG441ETE DG441AK DG441MY/PR DG442CJ DG442CY TEMP RANGE -40C to +85C -40C to +85C -55C to +125C -55C to +125C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -55C to +125C -55C to +125C PIN-PACKAGE 16 CERDIP 16 Thin QFN-EP** 16 CERDIP*** 16 Narrow SO 16 Plastic DIP 16 Narrow SO Dice* 16 Plastic DIP 16 Narrow SO 16 CERDIP 16 Thin QFN-EP** 16 CERDIP*** 16 Narrow SO
D
+V
CAPACITANCE METER S f = 1MHz GND V-
IN
0.8V or 2.4V
DG442C/D DG442DJ DG442DY DG442DK DG442ETE DG442AK DG442MY/PR
10nF
-15V
Figure 6. Source/Drain-On/Off Capacitance
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. PACKAGE TYPE 16 Plastic DIP 16 Narrow SO 16 CERDIP 16 Thin QFN-EP (5mm x 5mm) PACKAGE CODE P16-1 S16-3 J16-3 T1655-2 DOCUMENT NO. 21-0043 21-0041 21-0045 21-0140
8
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches
Revision History
REVISION NUMBER 5 REVISION DATE 5/09 Added ruggedized plastic. DESCRIPTION PAGES CHANGED 1, 2, 6, 8
DG441/DG442
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
(c) 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.

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