19-2170; Rev 0; 10/01
35Ω, SPST/SPDT, +3V
Logic-Compatible Analog Switches
General Description
The DG417L/DG418L/DG419L precision, CMOS ana-
log switches feature low on-resistance (R
ON
= 35Ω),
guaranteed R
ON
matching between switches (3Ω
max), and guaranteed R
ON
flatness over the signal
range (4Ω max). These switches are +3V logic-com-
patible when powered from ±15V or ±12V supplies.
The switches conduct equally well in either direction,
and feature low charge injection and low power con-
sumption. The DG417L/DG418L/DG419L also offer low
off-leakage current over temperature (less than 5nA at
+85°C).
The DG417L/DG418L are single-pole/single-throw
(SPST) switches. The DG417L is normally closed, and
the DG418L is normally open. The DG419L is single-
pole/double-throw (SPDT) with one normally closed
switch and one normally open switch. Switching times
are less than 175ns for t
ON
and less than 185ns for
t
OFF
. These devices operate with a single +9V to +36V
or bipolar ±4.5V to ±20V supplies.
The digital input has a +0.8V logic-low threshold and a
+2.0V logic-high threshold, ensuring +3V TTL and
CMOS-logic compatibility. The DG417L/DG418L/
DG419L are available in a tiny 8-pin µMAX, 8-pin SO,
or convenient 8-pin plastic DIP. All products are rated
at the extended temperature range of -40°C to +85°C.
____________________________Features
o
+3V Logic-Compatible Digital Inputs
V
IH
= 2.0V
V
IL
= 0.8V
o
Plug-In Upgrades for Industry-Standard
DG417/DG418/DG419 and
MAX317/MAX318/MAX319
o
Power-Supply Sequencing-Free Operation
o
Low On-Resistance (35Ω max)
o
Guaranteed Matched On-Resistance Between
Channels (3Ω max)
o
Guaranteed On-Resistance Flatness (4Ω max)
o
Single-Supply Operation +9V to +36V
Dual-Supply Operation ±4.5V to ±20V
o
Guaranteed Off-Leakage Current Over
Temperature (<5nA at +85°C)
o
Rail-to-Rail Analog Signal Handling Capability
o
Tiny 8-Pin µMAX Package
DG417L/DG418L/DG419L
Ordering Information
PART
DG417LEUA
DG417LDY
DG417LDJ
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8
µMAX
8 SO
8 Plastic DIP
________________________Applications
Sample-and-Hold Circuits
Test Equipment
Modems
Guidance and Control Systems
Audio Signal Routing
Communications Systems
Battery-Operated Systems
Fax Machines
PBX, PABX
Military Radios
Ordering Information continued at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Inc.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
COM
N.C.
1
2
8
7
6
NC
V-
IN
N.C.
COM
N.C.
1
2
8
7
6
NO
V-
IN
N.C.
COM
NC
1
2
8
7
6
NO
V-
IN
N.C.
GND
3
V+
4
GND
3
V+
4
GND
3
V+
4
DG417L
DIP/SO/µMAX
DG417L
LOGIC
SWITCH
0
1
ON
OFF
5
DG418L
DIP/SO/µMAX
DG418L
LOGIC
SWITCH
0
1
OFF
ON
5
DG419L
DG419L
NC
ON
OFF
5
DIP/SO/µMAX
LOGIC
0
1
NO
OFF
ON
N.C. = NO CONNECT
NC = NORMALLY CLOSED
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________
Maxim Integrated Products
1
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.
35Ω, SPST/SPDT, +3V
Logic-Compatible Analog Switches
DG417L/DG418L/DG419L
ABSOLUTE MAXIMUM RATINGS
Voltage referenced to V-
V+ ..........................................................................................44V
GND.......................................................................................25V
IN ...........................................................................-0.3V to +44V
COM, NC, NO (Note 1) ........................(V- - 0.3V) to (V+ + 0.3V)
Continuous Current (any terminal) (Note 1) .....................±30mA
Peak Current, COM, NO, NC (pulsed at 1ms,
10% duty cycle max) .................................................±100mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 4.5mW/°C above +70°C) ............362mW
8-Pin SO (derate 5.9mW/°C above +70°C) .................471mW
8-Pin Plastic DIP (derate 9.1mW/°C above +70°C).....727mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
Note 1:
Signals on COM, NO, or NC 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 ±15V Supplies
(V+ = +15V, V- = -15V, V
IH
= 2.0V, V
IL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
SYMBOL
V
NO
, V
NC
V
COM
R
ON
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
V-
V+ = +13.5V, V- = -13.5V
I
COM
= 10mA
V
NO
or V
NC
= ±10V
V+ = +15V, V- = -15V
I
COM
= 10mA
V
NO
or V
NC
= ±10V
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
DG417L
DG418L
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
-5
-0.4
-10
-0.75
-10
0.01
-0.25
-5
-0.25
0.01
0.01
0.5
0.1
17
V+
35
V
On-Resistance
Ω
45
3
4
4
Ω
6
0.25
nA
5
0.25
nA
5
0.4
10
0.75
10
nA
Ω
On-Resistance Matching
Between Channels
(DG419L only)
On-Resistance Flatness
(Note 4)
∆R
ON
V+ = +15V, V- = -15V
R
FLAT (ON)
I
COM
= 10mA
V
NO
or V
NC
= -5V, 0, +5V
V+ = +16.5V, V- = -16.5V
I
NC/NO(OFF)
V
COM
=
±15.5V
V
(NC or NO)
= +15.5V
V+ = +16.5V
V- = -16.5V
V
COM
=
±15.5V
V
(NC or NO)
= +15.5V
NC or NO Off-Leakage Current
(Note 5)
COM Off-Leakage Current
(Note 5)
I
COM(OFF)
COM On-Leakage Current
(Note 5)
I
COM(ON)
DG417L
V+ = +16.5V
DG418L
V- = -16.5V
V
COM
=
±15.5V
V
(NC or NO)
= ±15.5V DG419L
2
_______________________________________________________________________________________
35Ω, SPST/SPDT, +3V
Logic-Compatible Analog Switches
ELECTRICAL CHARACTERISTICS—Dual ±15V Supplies (continued)
(V+ = +15V, V- = -15V, V
IH
= 2.0V, V
IL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 2, 3)
DG417L/DG418L/DG419L
PARAMETER
DYNAMIC
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
Turn-On Time
t
ON
V
NO
or V
NC
= ±10V
R
L
= 300Ω
C
L
= 35pF
Figure 1
V
NO
or V
NC
= ±10V
R
L
= 300Ω
C
L
= 35pF
Figure 1
V
NO
= ±10V
V
NC
= +10V
R
L
= 300Ω
C
L
= 35pF
Figure 2
V
NO
or V
NC
= +10V
R
L
= 300Ω
C
L
= 35pF
Figure 3
V
GEN
= 0, R
GEN
= 0,
C
L
= 1nF, Figure 4
f = 1MHz, R
L
= 50Ω,
C
L
= 5pF,
Figure 5
f = 1MHz,
R
L
= 50Ω,
C
L
= 5pF,
Figure 6
+25°C
DG417L
DG418L
T
MIN
to T
MAX
+25°C
DG417L
DG418L
T
MIN
to T
MAX
+25°C
DG419L
T
MIN
to T
MAX
110
175
ns
250
105
185
ns
210
Turn-Off Time
t
OFF
105
185
ns
250
Transition Time
t
TRANS
+25°C
DG419L
T
MIN
to T
MAX
5
1
25
ns
Break-Before-Make Delay
(Note 6)
t
D
Charge Injection
Q
15
pC
Off-Isolation (Note 7)
V
ISO
-90
dB
Crosstalk (Note 8)
V
CT
DG419L
-86
dB
Total Harmonic Distortion
NO or NC Off-Capacitance
COM Off-Capacitance
COM On-Capacitance
THD
C
NO(OFF)
C
NC(OFF)
C
COM(OFF)
f = 20Hz to 20kHz, 5Vp-p
R
L
= 600Ω
f = 1MHz, Figure 7
f = 1MHz, Figure 7
DG417L
DG418L
DG419L
0.002
8
8
30
35
%
pF
pF
pF
f = 1MHz,
C
COM(ON)
Figure 8
_______________________________________________________________________________________
3
35Ω, SPST/SPDT, +3V
Logic-Compatible Analog Switches
DG417L/DG418L/DG419L
ELECTRICAL CHARACTERISTICS—Dual ±15V Supplies (continued)
(V+ = +15V, V- = -15V, V
IH
= 2.0V, V
IL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 2, 3)
PARAMETER
DIGITAL I/O
Input Logic High Voltage
Input Logic Low Voltage
Logic Input Current
(Input Voltage Low)
Logic Input Current
(Input Voltage High)
POWER SUPPLY
Power-Supply Range
SYMBOL
V
IH
V
IL
I
INL
I
INH
CONDITIONS
T
A
MIN
2.0
TYP
MAX
UNITS
V
0.8
V
IN
= 0.8V
V
IN
= 2.0V
0.001
0.001
1
1
V
µA
µA
V
S
Dual supplies
V+ = +16.5V, V- = -16.5V,
V
IN
= 5V
V+ = +16.5V, V- = -16.5V,
V
IN
= 0 or V+
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
±4.5
26
0.01
0.01
26
0.01
±20
75
125
1
10
1
10
75
125
1
10
V
Positive Supply Current
I+
µA
Negative Supply Current
I-
V+ = +16.5V, V- = -16.5V,
V
IN
= 0, 5V, V+
V+ = +16.5V, V- = -16.5V,
V
IN
= 5V
V+ = +16.5V, V- = -16.5V,
V
IN
= 0 or V+
µA
Ground Current
I
GND
µA
ELECTRICAL CHARACTERISTICS—Single +12V Supply
(V+ = +12V, V- = 0, V
IH
= 2.0V, V
IL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
SYMBOL
V
NO
, V
NC
V
COM
R
ON
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
V-
V+ = +10.8V,
I
COM
= 10mA,
V
NO
or V
NC
= +3.8V
V+ = +10.8V,
I
COM
= 10mA,
V
NO
or V
NC
= +3.8V
V+ = +12V,
I
COM
= 10mA
V
NO
or V
NC
= 2V, 6V, 10V
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
4
0.05
31
V+
100
125
4
V
On-Resistance
On-Resistance Matching
Between Channels
(DG419L Only)
On-Resistance Flatness
(Note 4)
Ω
∆R
ON
Ω
6
9
13
Ω
R
FLAT (ON)
4
_______________________________________________________________________________________
35Ω, SPST/SPDT, +3V
Logic-Compatible Analog Switches
ELECTRICAL CHARACTERISTICS—Single +12V Supply (continued)
(V+ = +12V, V- = 0, V
IH
= 2.0V, V
IL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 2, 3)
DG417L/DG418L/DG419L
PARAMETER
DYNAMIC
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
Turn-On Time
t
ON
V
NO
or V
NC
= +10V
+25°C
DG417L
R
L
= 300Ω
DG418L
C
L
= 35pF
T
MIN
to T
MAX
Figure 1
V
NO
or V
NC
= +10V
+25°C
DG417L
R
L
= 300Ω
DG418L
C
L
= 35pF
T
MIN
to T
MAX
Figure 1
V
NO
= 0, 10V
V
NC
= 10V, 0
R
L
= 300Ω
C
L
= 35pF
Figure 2
+25°C
DG419L
T
MIN
to T
MAX
5
1
150
300
ns
400
110
210
ns
310
Turn-Off Time
t
OFF
150
300
ns
400
Transition Time
t
TRANS
Break-Before-Make Delay
(Note 6)
t
D
V
NO
, V
NC
= +10V
+25°C
R
L
= 300Ω
DG419L
C
L
= 35pF
T
MIN
to T
MAX
Figure 3
V
GEN
= 0, R
GEN
= 0,
C
L
= 1nF, Figure 4
Single supply
V+ = +13.2V
V
IN
= 0 or V+
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
30
ns
Charge Injection
POWER SUPPLY
Power-Supply Range
Q
2.5
pC
V
S
9
0.01
36
1
10
15
60
110
V
Positive Supply Current
I+
V+ = +13.2V
V
IN
= 5V
µA
Note 2:
The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3:
-40°C specifications are guaranteed by design.
Note 4:
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 are 100% tested at maximum rated hot temperature and guaranteed by correlation at T
A
= +25°C.
Note 6:
Guaranteed by design.
Note 7:
Off-isolation = 20log10 [V
COM
/ (V
NC
or V
NO
)], V
COM
= output, V
NC
or V
NO
= input to off switch.
Note 8:
Between Switches
_______________________________________________________________________________________
5
京公网安备 11010802033920号
EEWORLD
