_______________General Description
Maxim’s redesigned DG417/DG418/DG419 precision,
CMOS, monolithic analog switches now feature guar-
anteed on-resistance matching (3Ωmax) between
switches and guaranteed on-resistance flatness over
the signal range (4Ωmax). These switches conduct
equally well in either direction and guarantee low
charge injection, low power consumption, and an ESD
tolerance of 2000V minimum per Method 3015.7. The
new design offers low off-leakage current over temper -
ature (less than 5nA at +85°C).
The DG417/DG418 are single-pole/single-throw (SPST)
switches. The DG417 is normally closed, and the
DG418 is normally open. The DG419 is single-
pole/double-throw (SPDT) with one normally closed
switch and one normally open switch. Switching times
are less than 175ns max for tON and less than 145ns
max for tOFF. Operation is from a single +10V to +30V
supply, or bipolar ±4.5V to ±20V supplies. The
improved DG417/DG418/DG419 are fabricated with a
44V silicon-gate process.
________________________Applications
Sample-and-Hold Circuits Communications Systems
Test Equipment Battery-Operated Systems
Modems Fax Machines
Guidance and Control Systems PBX, PABX
Audio Signal Routing Military Radios
______________________New Features
♦Plug-In Upgrades for Industry-Standard
DG417/DG418/DG419
♦Improved RDS(ON) Match Between Channels
(3Ωmax, DG419 only)
♦Guaranteed RFLAT(ON) Over Signal Range (4 Ωmax)
♦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) (35Ωmax)
♦Single-Supply Operation +10V to +30V
Bipolar-Supply Operation ±4.5V to ±20V
♦Low Power Consumption (35µW max)
♦Rail-to-Rail Signal Handling
♦TTL/CMOS-Logic Compatible
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
________________________________________________________________
Maxim Integrated Products
1
TOP VIEW
1
2
3
4
8
7
6
5
DG418
DIP/SO
1
2
3
4
8
7
6
5
D
V-
IN
VL
D
V-
IN
VL
V+
GND
N.C.
S
V+
GND
N.C.
S
DG417
DIP/SO
1
2
3
4
8
7
6
5
S2
V-
IN
VLV+
GND
S1
D
DG419
DIP/SO
LOGIC SWITCH
0
1ON
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
LOGIC SWITCH
0
1OFF
ON
LOGIC SWITCH 1
0
1ON
OFF
SWITCH 2
OFF
ON
DG417 DG418 DG419
N.C. = NO INTERNAL CONNECTION
_____________________Pin Configurations/Functional Diagrams/Truth Tables
19-0114; Rev 2; 12/96
PART
DG417CJ
DG417CY
DG417C/D 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
______________Ordering Information
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
DG417DJ
DG417DY -40°C to +85°C
-40°C to +85°C 8 Plastic DIP
8 SO
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = +15V, V- = -15V, VL= 5V, GND = 0V, VINL = 0.8V, VINH = 2.4V, TA= TMIN to TMAX, unless otherwise noted.)
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.
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) (Note 1)........................30mA
Peak Current, S or D (pulsed at 1ms, 10% duty cycle max)..100mA
Continuous Power Dissipation (TA= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW
SO (derate 5.88mW/°C above +70°C)..........................471mW
CERDIP (derate 8.00mW/°C above +70°C)..................640mW
Operating Temperature Ranges
DG41_C_ .............................................................0°C to +70°C
DG41_D_ ..........................................................-40°C to +85°C
DG41_AK........................................................-55°C to +125°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.
DG417/
DG418
-40 40
-10 10
A
A
DG417/
DG418
V+ = 13.5V, V- = -13.5V,
VD= ±10V,
IS= -10mA
DG419
(Note 3)
-0.75 -0.1 0.75TA= +25°C C, D
TA= TMIN to
TMAX
V+ = 16.5V,
V- = -16.5V,
VD= ±15.5V,
VS= 15.5V
-40 40
-10 10
A
TA= TMIN to TMAX
V+ = 15V, V- = -15V,
VD= ±10V,
IS= -10mA 4
DG419
V+ = 15V, V- = -15V,
VD= ±5V,
IS= -10mA
V
-0.75 0.75TA= +25°C C, D
TA= TMIN to
TMAX
V+ = 16.5V,
V- = -16.5V,
VD= ±15.5V,
VS= ±15.5V
-40 40
-10 10
A
ID(ON)
Drain-On
Leakage Current
(Note 5) nA
-0.4 0.4TA= +25°C C, D
TA= TMIN to
TMAX
-15 15VS_, VD
CONDITIONS
Analog Signal Range
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
20 30
TA= +25°C C, D 20 35
RDS(ON)
Drain-Source
On-Resistance Ω
45
TA= +25°C
TA= TMIN to TMAX
6
TA= +25°C
∆RDS(ON)
On-Resistance Match
Between Channels
(Note 4) Ω
3
TA= TMIN to TMAX
RFLAT(ON)
On-Resistance Flatness
(Note 4) Ω
4
V+ = 16.5V, V- = -16.5V,
VD= ±15.5V,
VS= 15.5V -20 20
-5 5
A
IS(OFF)
Source-Off
Leakage Current
(Note 5) nA
-0.25 0.25TA= +25°C
-20 20
C, D
-5 5
TA= TMIN to
TMAX
A
ID(OFF)
Drain-Off
Leakage Current
(Note 5) nA
-0.25 0.1 0.25TA= +25°C C, D
TA= TMIN to
TMAX
SWITCH
±
±
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +15V, V- = -15V, VL= 5V, GND = 0V, VINL = 0.8V, VINH = 2.4V, TA= TMIN to TMAX, unless otherwise noted.)
-5 5
TA= +25°C
-5 5
VD= 0V, f = 1MHz, Figure 8, TA= +25°C
VIN = 2.4V
TA= TMIN to TMAX
V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V
TA= +25°C
TA= TMIN to TMAX
µA
-1 -0.0001 1
I-Negative Supply Current
pF8CS (OFF)
-5 5
TA= +25°C
µA
TA= TMIN to TMAX
V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V µA
-1 -0.0001 1
IL
Logic Supply Current
-5 5
TA= +25°C
TA= TMIN to TMAX
V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V µA
-1 -0.0001 1
IGND
Ground Current
-0.5 0.005 0.5IINH
DG417/DG418,
VD= ±10V, Figure 2 ns
100 175
Turn-On Time
Logic Input Current with
Input Voltage High
tON
VIN = 0.8V µA-0.5 0.005 0.5IINL
Logic Input Current with
Input Voltage Low
TA= +25°C
DG417/DG418,
VD = ±10V, Figure 2
250TA= TMIN to TMAX
ns
VGEN = 0V, Figure 5, TA= +25°C pC3 10QCharge Injection (Note 3)
60 145
Turn-Off Time tOFF TA= +25°C 210TA= TMIN to TMAX
DG419,
VS = ±10V, Figure 3 ns
175
Transition Time
Source Off-Capacitance
CONDITIONS UNITS
tTRANS
35
MIN TYP MAX
(Note 2)
SYMBOL
TA= +25°C 250TA= TMIN to TMAX
PARAMETER
DG419, VS1 = VS2 = ±10V,Figure 4, TA= +25°C ns5 13
Break-Before-Make
Interval tD
RL= 500Ω, CL= 5pF, f = 1MHz, Figure 6, TA= +25°C dB68OIRR
Off-Isolation
Rejection Ratio (Note 6)
DG419, RL= 50Ω, CL= 5pF, f = 1MHz, Figure 7,
TA= +25°C dB85Crosstalk (Note 7)
V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V µA
-1 -0.0001 1
I+Positive Supply Current
VD= 0V, f = 1MHz, Figure 8, TA= +25°C pF8CD (OFF)
Drain Off-Capacitance
VS= 0V, f = 1MHz,
Figure 9,
TA= +25°C pF
30
CD (ON)
or
CS (ON)
Drain-Source
On-Capacitance
LOGIC INPUT
SUPPLY
DYNAMIC
DG417/DG418
DG419
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +12V, V- = 0V, VL = 5V, GND = 0V, VINH = 2.4V, VINL = 0.8V, 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
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.
Drain-Source On-Resistance RDS(ON)
ns
ns110Turn-On Time tON DG417/DG418, VD= 8V, Figure 2tOFF
Charge Injection (Note 3) Q
Turn-Off Time DG417/DG418, VD= 8V, Figure 2
pC
40
µA
ns60Break-Before-Make Interval tDDG419, RL= 1000Ω, CL= 35pF, Figure 4 210CL= 10nF, VGEN = 0V, RGEN = 0V, Figure 5
-0.0001Logic Supply Current ILAll channels on or off, VL= 5.25V,
VIN = 0V or 5V
µA-0.0001Negative Supply Current I-
µA-0.0001Positive Supply Current I+ All channels on or off, V+ = 13.2V,
VL= 5.25V, VIN = 0V or 5V
IS= -10mA, VD= 3.8V, V+ = 10.8V 40 100 Ω
All channels on or off, V+ = 13.2V,
VL= 5.25V, VIN = 0V or 5V
µA-0.0001Ground Current IGND All channels on or off, VL= 5.25V,
VIN = 0V or 5V
CONDITIONS UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
(Note 3) V0 12VANALOG
Analog Signal Range
SWITCH
DYNAMIC
SUPPLY
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
_______________________________________________________________________________________
5
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
45
5-20 -10 10
ON-RESISTANCE vs. VD AND
POWER-SUPPLY VOLTAGE
15
35
DG417-01
VD (V)
RDS(ON) (Ω)
0 20
25
40
10
30
20
50
A
BC
D
A: V+ = 5V,
V- = -5V
B: V+ = 10V,
V- = -10V
C: V+ = 15V,
V- = -15V
D: V+ = 20V,
V- = -20V
5-20 -10 10
ON-RESISTANCE vs. VD AND
TEMPERATURE
30
DG417-02
VD (V)
RDS(ON) (Ω)
0 20
20
10
25
15
35 V+ = 15V
V- = -15V TA = +125°C
TA = +85°C
TA = +25°C
TA = -55°C
20 0 5 15
ON-RESISTANCE vs. VD
(SINGLE SUPPLY)
120
DG417-03
VD (V)
RDS(ON) (Ω)
10 20
80
40
100
60
140 V- = 0V
V+ = 5V
V+ = 10V V+ = 15V
V+ = 20V
10 0 5 15
ON-RESISTANCE vs. VD AND
TEMPERATURE
60
DG417-04
VD (V)
RDS(ON) (Ω)
10 20
40
20
50
30
70 V+ = 12V
V- = 0V
TA = +125°C
TA = +85°C
TA = +25°C
-60 -20
CHARGE INJECTION vs.
ANALOG VOLTAGE
40
DG417-07
VD (V)
Q (pC)
0 20
0
-40
20
-20
60
-15 -10 -5 5 10 15
V+ = 15V
V- = -15V
0.0001 -75
OFF-LEAKAGE CURRENT vs.
TEMPERATURE
10
DG417-05
TEMPERATURE (°C)
OFF-LEAKAGE (nA)
25 125
0.1
0.001
1
0.01
100 V+ = 16.5V
V- = -16.5V
VD = ±15V
VS =
15V
±
0.0001 -75
ON-LEAKAGE CURRENT vs.
TEMPERATURE
10
DG417-06
TEMPERATURE (°C)
ON-LEAKAGE (nA)
25 125
0.1
0.001
1
0.01
100 V+ = 16.5V
V- = -16.5V
VD = ±15V
VS = ±15V
0.0001 -75
SUPPLY CURRENT vs.
TEMPERATURE
10
DG417-08
TEMPERATURE (°C)
I+, I-, IL (µA)
25 125
0.1
0.001
1
0.01
100 A: I+ at V+ = 16.5V
B: I- at V- = -16.5V
C: IL at VL = 5V
A
B
C
DG417/DG418/DG419
__________Applications Information
Operation with Supply Voltages
Other than ±15V
Using supply voltages other than ±15V reduces the
analog signal range. The DG417/DG418/DG419 switch-
es 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. VL must be connected to +5V to be TTL com-
patible, or to V+ for CMOS-logic level inputs. 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 may cause permanent damage to the devices.
Always sequence V+ on first, followed by VL, V-, and
logic inputs. If power-supply sequencing is not possi-
ble, add two small, external signal diodes in series with
the supply pins for overvoltage protection (Figure 1).
Adding diodes reduces the analog signal range to 1V
below V+ and 1V above V-, without affecting low switch
resistance and low leakage characteristics. Device
operation is unchanged, and the difference between
V+ and V- should not exceed +44V.
Improved, SPST/SPDT Analog Switches
6 _______________________________________________________________________________________
______________________________________________________________Pin Description
FUNCTION
DG417 DG418
1 — Analog-Switch Source Terminal (normally closed)
PIN
— 1 Analog-Switch Source Terminal (normally open)
2 2 No Internal Connection
6 6 Logic-Level Input
5 5 Logic-Level Positive Supply Input
4 4 Analog-Signal Positive Supply Input
3 3 Logic Ground
7 7 Analog-Signal Negative Supply Input
V+
D
V-
S
Vg
DG41_
Figure 1. Overvoltage Protection Using External Blocking Diodes
NAME
DG419
— S
— S
— N.C.
6 IN
5 VL
4 V+
3 GND
7 V-
8 8 Analog-Switch Drain Terminal1 D
— — Analog-Switch Source Terminal 1 (normally closed)2 S1
— — Analog-Switch Source Terminal 2 (normally open)8 S2
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
_______________________________________________________________________________________ 7
_____________________________________________________Test Circuits/Timing Diagrams
tR < 20ns
tF < 20ns
50%
0V
LOGIC
INPUT
V-
-15V
RL
300Ω
S
GND
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
VOUT = VD ( RL )
RL + RDS(ON)
SWITCH
INPUT
IN
+3V
tOFF
0V
D
SWITCH
OUTPUT
0.9 x VOUT 0.9 x VOUT
tON
VOUT
SWITCH
OUTPUT
LOGIC
INPUT
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
VL V+
CL
35pF
+5V +15V
VOUT
DG417
DG418
tR < 20ns
tF < 20ns
50%
0V
LOGIC
INPUT V-
-15V
RL
1000Ω
D
GND
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
LOGIC
INPUT S1
IN
tTRANS
+3V
tTRANS
VOUT1
V+
S2
VOUT
0.8 x VOUT1
VOUT2 0.8 x VOUT2
SWITCH
OUTPUT
VL
DG419
+15V +5V
CL
35pF
Figure 2. DG417/DG418 Switching Time
Figure 3. DG419 Transition Time
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
8 _______________________________________________________________________________________
50%
VOUT1
VOUT2
0.9 x VOUT
+3V
0V
0V
LOGIC
INPUT
SWITCH
OUTPUT 1
SWITCH
OUTPUT 2 VOUT
0.9 x VOUT
tDtD
LOGIC
INPUT V-
-15V
RL
300Ω
GND
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
S2 D
IN1, IN2
VL
S1 VOUT
V+
DG419
+5V +15V
CL
35pF
+10V
Figure 5. Charge Injection
VGEN GND
D
CL
10nF
VOUT
-15V
V-
V+
VL
VOUT
IN OFF ON OFF
∆VOUT
Q = ∆VOUT x CL
S
+5V
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
OFF ON OFF
IN VIN = +3V
DG417
DG418
DG419
+15V
Figure 4. DG419 Break-Before-Make Interval
______________________________________Test Circuits/Timing Diagrams (continued)
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
_______________________________________________________________________________________ 9
IN 0V or
2.4V
SIGNAL
GENERATOR 0dBm
+15V
10nF
VL
NETWORK
ANALYZER S1 or S2
RLGND
D
10nF
-15V
V-
V+
+5V
DG417
DG418
DG419
SIGNAL
GENERATOR 0dBm
+15V
V+
S2
RLGND
D
V-
-15V
0V or 2.4V IN
S1 50Ω
VL
D
DG419
+5V
NETWORK
ANALYZER
10nF
10nF
CAPACITANCE
METER S
D
GND V-
-15V
IN 0V or
2.4V
+15V
VL
+5V
f = 1MHz
V+
DG417
DG418
DG419
10nF
10nF
S
D
GND V-
-15V
IN 0V or
2.4V
+15V
VL
+5V
V+
DG417
DG418
DG419
CAPACITANCE
METER
f = 1MHz
10nF
10nF
Figure 6. Off-Isolation Rejection Ratio Figure 7. DG419 Crosstalk
Figure 8. Drain-Source Off-Capacitance Figure 9. Drain-Source On-Capacitance
______________________________________Test Circuits/Timing Diagrams (continued)
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
10 ______________________________________________________________________________________
______________________Chip Topography
7
6
4
5
8
9
3 2 1
0.058"
1.47mm
0.076"
1.93mm
__Ordering Information (continued)
TRANSISTOR COUNT: 32
SUBSTRATE CONNECTED TO V+
* Contact factory for dice specifications.
**Contact factory for availability and processing to MIL-STD-883B.
PART TEMP. RANGE PIN-PACKAGE
DG417DK
DG417AK -55°C to +125°C
-40°C to +85°C 8 CERDIP
8 CERDIP**
DG418CJ
DG418CY
DG418C/D 0°C to +70°C
0°C to +70°C
0°C to +70°C 8 Plastic DIP
8 SO
Dice*
DG418DJ
DG418DY -40°C to +85°C
-40°C to +85°C 8 Plastic DIP
8 SO
DG418DK
DG418AK -55°C to +125°C
-40°C to +85°C 8 CERDIP
8 CERDIP**
DG419DK
DG419AK -55°C to +125°C
-40°C to +85°C 8 CERDIP
8 CERDIP**
DG419CJ
DG419CY
DG419C/D 0°C to +70°C
0°C to +70°C
0°C to +70°C 8 Plastic DIP
8 SO
Dice*
DG419DJ
DG419DY -40°C to +85°C
-40°C to +85°C 8 Plastic DIP
8 SO
DG419
S
GND
V+
VL
IN
V-
S
D
D
DG418
N.C.
GND
V+
VL
IN
V-
S
D
N.C.
DG417DIE PAD
1
2
D
3
4
5
6
GND
7
8
9
V+
VL
IN
V-
N.C.
N.C.
S
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
______________________________________________________________________________________ 11
________________________________________________________Package Information
PDIPN.EPS
SOICN.EPS
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.
12
__________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 1996 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
DG417/DG418/DG419
Improved, SPST/SPDT 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.
12
__________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 1996 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
___________________________________________Package Information (continued)