Maxim DG419AK Improved, spst/spdt analog switch Datasheet

19-0114; Rev 2; 12/96
Improved, SPST/SPDT Analog Switches
______________________New Features
♦ Plug-In Upgrades for Industry-Standard
DG417/DG418/DG419
♦ Improved RDS(ON) Match Between Channels
(3Ω max, DG419 only)
♦ Guaranteed RFLAT(ON) Over Signal Range (4Ω max)
♦ 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) (35Ω max)
♦ 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
______________Ordering Information
________________________Applications
Sample-and-Hold Circuits
PART
Communications Systems
Test Equipment
Battery-Operated Systems
Modems
Fax Machines
Guidance and Control Systems
PBX, PABX
Audio Signal Routing
Military Radios
TEMP. RANGE
DG417CJ
DG417CY
DG417C/D
DG417DJ
DG417DY
PIN-PACKAGE
0°C to +70°C
8 Plastic DIP
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
8 SO
Dice*
8 Plastic DIP
8 SO
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
S
1
8
D
D
1
8
S2
V-
N.C.
2
7
V-
S1
2
7
V-
6
IN
GND 3
6
IN
5
VL
V+ 4
5
VL
S
1
8
D
N.C.
2
7
GND 3
6
IN
GND 3
V+ 4
5
VL
V+ 4
DG417
DG418
DIP/SO
DIP/SO
DG417
DG418
DG419
DIP/SO
LOGIC
SWITCH
LOGIC
SWITCH
LOGIC
DG419
SWITCH 1
SWITCH 2
0
1
ON
OFF
0
1
OFF
ON
0
1
ON
OFF
OFF
ON
N.C. = NO INTERNAL CONNECTION
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
DG417/DG418/DG419
_______________General Description
Maxim’s redesigned DG417/DG418/DG419 precision,
CMOS, monolithic analog switches now feature guaranteed on-resistance matching (3Ω max) between
switches and guaranteed on-resistance flatness over
the signal range (4Ω max). 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 temperature (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 singlepole/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.
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
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) (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.
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, VL = 5V, GND = 0V, VINL = 0.8V, VINH = 2.4V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SWITCH
Analog Signal Range
SYMBOL
VS_, VD
MIN
CONDITIONS
(Note 3)
RDS(ON)
MAX
20
35
20
30
-15
C, D
Drain-Source
On-Resistance
TYP
(Note 2)
V+ = 13.5V, V- = -13.5V, T = +25°C
A
VD = ±10V,
A
IS = -10mA
TA = TMIN to TMAX
15
∆RDS(ON)
V+ = 15V, V- = -15V,
VD = ±10V,
IS = -10mA
TA = +25°C
3
TA = TMIN to TMAX
4
On-Resistance Flatness
(Note 4)
V+ = 15V, V- = -15V,
RFLAT(ON) VD = ±5V,
IS = -10mA
TA = +25°C
4
TA = TMIN to TMAX
6
IS(OFF)
V+ = 16.5V, V- = -16.5V, TA = +25°C
VD = ±15.5V,
TA = TMIN to
VS = ± 15.5V
TMAX
C, D
A
TA = +25°C
Drain-Off
Leakage Current
(Note 5)
Drain-On
Leakage Current
(Note 5)
2
ID(OFF)
ID(ON)
V+ = 16.5V,
V- = -16.5V,
VD = ±15.5V,
±
VS = 15.5V
V+ = 16.5V,
V- = -16.5V,
VD = ±15.5V,
VS = ±15.5V
DG417/
DG418 TA = TMIN to
TMAX
A
TA = +25°C
DG419
DG417/
DG418
TA = TMIN to
TMAX
C, D
A
C, D
A
TA = TMIN to
TMAX
5
-20
Ω
Ω
Ω
nA
20
0.1
-5
0.25
5
-20
20
-0.1
-10
0.75
-40
40
-0.4
0.4
-10
10
-40
40
0.75
C, D
-10
10
A
-40
40
_______________________________________________________________________________________
nA
10
-0.75
TA = +25°C
DG419
0.25
-5
-0.75
TA = +25°C
TA = TMIN to
TMAX
-0.25
-0.25
C, D
V
45
On-Resistance Match
Between Channels
(Note 4)
Source-Off
Leakage Current
(Note 5)
UNITS
nA
Improved, SPST/SPDT Analog Switches
DG417/DG418/DG419
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.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
(Note 2)
MAX
UNITS
LOGIC INPUT
Logic Input Current with
Input Voltage High
IINH
VIN = 2.4V
-0.5
0.005
0.5
µA
Logic Input Current with
Input Voltage Low
IINL
VIN = 0.8V
-0.5
0.005
0.5
µA
Turn-On Time
tON
DG417/DG418,
VD = ±10V, Figure 2
TA = +25°C
100
175
Turn-Off Time
tOFF
DG417/DG418,
VD = ±10V, Figure 2
TA = +25°C
TA = TMIN to TMAX
210
tTRANS
DG419,
VS = ±10V, Figure 3
TA = +25°C
175
TA = TMIN to TMAX
250
DYNAMIC
Transition Time
TA = TMIN to TMAX
250
60
145
ns
ns
ns
Break-Before-Make
Interval
tD
DG419, VS1 = VS2 = ±10V, Figure 4, TA = +25°C
Charge Injection (Note 3)
Q
VGEN = 0V, Figure 5, TA = +25°C
3
RL = 500Ω, CL = 5pF, f = 1MHz, Figure 6, TA = +25°C
68
dB
DG419, RL = 50Ω, CL = 5pF, f = 1MHz, Figure 7,
TA = +25°C
85
dB
Off-Isolation
Rejection Ratio (Note 6)
OIRR
Crosstalk (Note 7)
5
13
ns
10
pC
Drain Off-Capacitance
CD (OFF)
VD = 0V, f = 1MHz, Figure 8, TA = +25°C
8
pF
Source Off-Capacitance
CS (OFF)
VD = 0V, f = 1MHz, Figure 8, TA = +25°C
8
pF
Drain-Source
On-Capacitance
CD (ON)
or
CS (ON)
VS = 0V, f = 1MHz,
Figure 9,
TA = +25°C
DG417/DG418
30
DG419
35
pF
SUPPLY
Positive Supply Current
I+
V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V
TA = +25°C
-1
TA = TMIN to TMAX
-5
Negative Supply Current
I-
V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V
TA = +25°C
-1
TA = TMIN to TMAX
-5
Logic Supply Current
IL
V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V
TA = +25°C
-1
TA = TMIN to TMAX
-5
IGND
V+ = 16.5V, V- = -16.5V,
VIN = 0V or 5V
TA = +25°C
-1
TA = TMIN to TMAX
-5
Ground Current
-0.0001
1
5
-0.0001
1
5
-0.0001
1
5
-0.0001
1
5
µA
µA
µA
µA
_______________________________________________________________________________________
3
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +12V, V- = 0V, VL = 5V, GND = 0V, VINH = 2.4V, VINL = 0.8V, TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
SWITCH
Analog Signal Range
VANALOG
(Note 3)
Drain-Source On-Resistance
MIN
TYP
(Note 2)
0
MAX
UNITS
12
V
100
Ω
RDS(ON)
IS = -10mA, VD = 3.8V, V+ = 10.8V
40
DYNAMIC
Turn-On Time
tON
DG417/DG418, VD = 8V, Figure 2
110
ns
Turn-Off Time
tOFF
ns
DG417/DG418, VD = 8V, Figure 2
40
Break-Before-Make Interval
tD
DG419, RL = 1000Ω, CL = 35pF, Figure 4
60
Charge Injection (Note 3)
Q
CL = 10nF, VGEN = 0V, RGEN = 0V, Figure 5
2
Positive Supply Current
I+
All channels on or off, V+ = 13.2V,
VL = 5.25V, VIN = 0V or 5V
-0.0001
µA
Negative Supply Current
I-
All channels on or off, V+ = 13.2V,
VL = 5.25V, VIN = 0V or 5V
-0.0001
µA
Logic Supply Current
IL
All channels on or off, VL = 5.25V,
VIN = 0V or 5V
-0.0001
µA
IGND
All channels on or off, VL = 5.25V,
VIN = 0V or 5V
-0.0001
µA
ns
10
pC
SUPPLY
Ground Current
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.
4
_______________________________________________________________________________________
Improved, SPST/SPDT Analog Switches
ON-RESISTANCE vs. VD AND
TEMPERATURE
25
B
C
20
25
TA = +85°C
20
15
V+ = 5V
80
60
10
V+ = 10V
40
TA = +25°C
10
V+ = 15V
V+ = 20V
5
5
0
-10
-10
10
0
0
20
10
15
VD (V)
VD (V)
ON-RESISTANCE vs. VD AND
TEMPERATURE
OFF-LEAKAGE CURRENT vs.
TEMPERATURE
ON-LEAKAGE CURRENT vs.
TEMPERATURE
TA = +85°C
40
TA = +25°C
30
ON-LEAKAGE (nA)
OFF-LEAKAGE (nA)
TA = +125°C
50
1
0.1
0.01
0.001
20
10
15
25
125
25
125
TEMPERATURE (°C)
SUPPLY CURRENT vs.
TEMPERATURE
CHARGE INJECTION vs.
ANALOG VOLTAGE
100
DG417-07
60
V+ = 15V
V- = -15V
A: I+ at V+ = 16.5V
B: I- at V- = -16.5V
C: IL at VL = 5V
10
I+, I-, IL (µA)
20
Q (pC)
-75
TEMPERATURE (°C)
VD (V)
40
0.01
0.0001
-75
20
0.1
0
DG417-08
5
1
0.001
0.0001
10
V+ = 16.5V
V- = -16.5V
VD = ±15V
VS = ±15V
10
20
DG417-06
V+ = 16.5V
V- = -16.5V
VD = ±15V
VS = 15V
10
100
DG417-05
100
DG417-04
V+ = 12V
V- = 0V
0
5
VD (V)
70
60
-20
20
10
20
±
-20
RDS(ON) (Ω)
100
TA = -55°C
D
15
V- = 0V
120
TA = +125°C
RDS(ON) (Ω)
30
RDS(ON) (Ω)
RDS(ON) (Ω)
35
V+ = 15V
V- = -15V
30
A
140
DG417-02
A: V+ = 5V,
V- = -5V
B: V+ = 10V,
V- = -10V
C: V+ = 15V,
V- = -15V
D: V+ = 20V,
V- = -20V
40
35
DG417-01
50
45
ON-RESISTANCE vs. VD
(SINGLE SUPPLY)
DG417-03
ON-RESISTANCE vs. VD AND
POWER-SUPPLY VOLTAGE
1
A
B
0.1
C
-20
0.01
-40
0.001
0.0001
-60
-20 -15 -10
-5
0
VD (V)
5
10
15
20
-75
25
125
TEMPERATURE (°C)
_______________________________________________________________________________________
5
DG417/DG418/DG419
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
______________________________________________________________Pin Description
PIN
DG417
DG418
DG419
1
—
—
—
1
—
—
2
NAME
FUNCTION
S
Analog-Switch Source Terminal (normally closed)
—
S
Analog-Switch Source Terminal (normally open)
2
S1
Analog-Switch Source Terminal 1 (normally closed)
2
—
N.C.
No Internal Connection
3
3
3
GND
Logic Ground
4
4
4
V+
Analog-Signal Positive Supply Input
5
5
5
VL
Logic-Level Positive Supply Input
6
6
6
IN
Logic-Level Input
7
7
7
V-
Analog-Signal Negative Supply Input
8
8
1
D
Analog-Switch Drain Terminal
—
—
8
S2
Analog-Switch Source Terminal 2 (normally open)
__________Applications Information
V+
Operation with Supply Voltages
Other than ±15V
Using supply voltages other than ±15V reduces the
analog signal range. The DG417/DG418/DG419 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. VL must be connected to +5V to be TTL compatible, or to V+ for CMOS-logic level inputs. The
Typical Operating Characteristics graphs show typical
on-resistance with ±20V, ±15V, ±10V, and ±5V supplies. (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 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 possible, add two small, external signal diodes in series with
the supply pins for overvoltage protection (Figure 1).
6
S
D
Vg
DG41_
V-
Figure 1. Overvoltage Protection Using External Blocking Diodes
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
LOGIC
INPUT
t R < 20ns
t F < 20ns
+3V
50%
SWITCH
INPUT
0V
+5V
+15V
VL
V+
D
DG417
DG418
IN
SWITCH
OUTPUT
0V
0.9 x VOUT
0.9 x VOUT
t ON
GND
LOGIC
INPUT
VOUT
RL
300Ω
t OFF
VOUT
SWITCH
OUTPUT
S
CL
35pF
V-
-15V
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
RL
VOUT = VD
RL + RDS(ON)
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
(
)
Figure 2. DG417/DG418 Switching Time
DG419
+15V
LOGIC
INPUT
+3V
50%
t R < 20ns
t F < 20ns
S1 V+
+5V
VL
0V
VOUT
D
S2
t TRANS
SWITCH VOUT1
OUTPUT
VOUT2
t TRANS
0.8 x V OUT1
0.8 x V OUT2
RL
1000Ω
IN
LOGIC
INPUT
GND
CL
35pF
V-15V
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 3. DG419 Transition Time
_______________________________________________________________________________________
7
DG417/DG418/DG419
_____________________________________________________Test Circuits/Timing Diagrams
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
______________________________________Test Circuits/Timing Diagrams (continued)
LOGIC
INPUT
+3V
50%
0V
+10V
VOUT1
SWITCH
OUTPUT 1
0.9 x VOUT
+15V
VL
V+
DG419
RL
300Ω
0V
IN1, IN2
VOUT
0.9 x VOUT
tD
VOUT
D
S2
VOUT2
SWITCH
OUTPUT 2
S1
+5V
LOGIC
INPUT
GND
tD
CL
35pF
V-15V
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 4. DG419 Break-Before-Make Interval
+5V
+15V
VL
V+
DG417
DG418
DG419
∆VOUT
VOUT
S
D
VOUT
IN
OFF
ON
ON
OFF
IN
OFF
V GEN
GND
OFF
Q = ∆V OUT x C L
V-
-15V
VIN = +3V
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 5. Charge Injection
8
_______________________________________________________________________________________
CL
10nF
Improved, SPST/SPDT Analog Switches
10nF
SIGNAL
GENERATOR 0dBm
+15V
+5V
V+
VL
D
DG417
DG418
DG419
10nF +15V
SIGNAL
GENERATOR 0dBm
0V or
2.4V
IN
NETWORK
ANALYZER
S1 or S2
NETWORK
ANALYZER
GND
0V or 2.4V
V-
10nF
RL
D
50Ω
S1
IN
D
S2
GND
RL
V-
10nF
-15V
Figure 6. Off-Isolation Rejection Ratio
Figure 7. DG419 Crosstalk
+15V
+5V
V+
VL
DG417
DG418
DG419
10nF
+15V
+5V
V+
VL
DG417
DG418
DG419
D
D
0V or
2.4V
IN
CAPACITANCE
METER
IN
0V or
2.4V
CAPACITANCE
METER
S
S
f = 1MHz
DG419
VL
V+
-15V
10nF
+5V
GND
V-
10nF
f = 1MHz
GND
10nF
-15V
-15V
Figure 8. Drain-Source Off-Capacitance
V-
Figure 9. Drain-Source On-Capacitance
_______________________________________________________________________________________
9
DG417/DG418/DG419
______________________________________Test Circuits/Timing Diagrams (continued)
DG417/DG418/DG419
Improved, SPST/SPDT Analog Switches
__Ordering Information (continued)
PART
______________________Chip Topography
TEMP. RANGE
PIN-PACKAGE
DG417DK
DG417AK
DG418CJ
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
8 CERDIP
8 CERDIP**
8 Plastic DIP
DG418CY
DG418C/D
DG418DJ
DG418DY
DG418DK
DG418AK
DG419CJ
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP
8 CERDIP**
8 Plastic DIP
4
DG419CY
DG419C/D
DG419DJ
DG419DY
DG419DK
DG419AK
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP
8 CERDIP**
5
3
2
1
9
8
6
* Contact factory for dice specifications.
**Contact factory for availability and processing to MIL-STD-883B.
0.058"
1.47mm
0.076"
1.93mm
7
TRANSISTOR COUNT: 32
SUBSTRATE CONNECTED TO V+
10
DIE PAD
DG417
DG418
DG419
1
D
N.C.
S
2
GND
GND
GND
3
V+
V+
V+
4
VL
VL
VL
5
IN
IN
IN
6
V-
V-
V-
7
N.C.
S
S
8
N.C.
D
D
9
S
N.C.
D
______________________________________________________________________________________
Improved, SPST/SPDT Analog Switches
PDIPN.EPS
SOICN.EPS
______________________________________________________________________________________
11
DG417/DG418/DG419
________________________________________________________Package Information
___________________________________________Package Information (continued)
CDIPS.EPS
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.