19-4611; Rev 2; 7/96
Improved, Quad, SPST Analog Switches
_______________General Description
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 t
ON
and
less than 70ns for t
OFF
. These devices operate from a sin-
gle +10V to +30V supply, or bipolar ±4.5V to ±20V sup-
plies. Maxim’s improved DG441/DG442 continue to be
fabricated with a 44V silicon-gate process.
______________________New Features
o
o
o
o
o
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)
o
Withstand Electrostatic Discharge (2000V min)
per Method 3015.7
DG441/DG442
__________________Existing Features
o
Low r
DS(ON)
(85Ω max)
o
Single-Supply Operation +10V to +30V
Bipolar-Supply Operation ±4.5V to ±20V
o
Low Power Consumption (1.65mW max)
o
Rail-to-Rail Signal Handling
o
TTL/CMOS-Logic Compatible
________________________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
PART
DG441CJ
DG441CY
DG441C/D
DG441DJ
DG441DY
DG441DK
DG441AK
TEMP. RANGE
0°C to +70°C
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
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
16 Plastic DIP
16 Narrow SO
16 CERDIP
16 CERDIP**
Ordering Information continued on last page.
*Contact
factory for dice specifications.
**Contact
factory for availability and processing to MIL-STD-883B.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
IN1
D1
S1
V-
GND
S4
D4
IN4
1
2
3
4
5
6
7
8
16
IN2
15
D2
14
S2
13
V+
IN1
D1
S1
V-
GND
S4
D4
IN4
1
2
3
4
5
6
7
8
16
IN2
15
D2
14
S2
13
V+
DG441
12
N.C.
11
S3
10
D3
9
IN3
DG442
12
N.C.
11
S3
10
D3
9
IN3
DIP/SO
LOGIC
0
1
DG441
SWITCH
ON
OFF
SWITCHES SHOWN FOR LOGIC “0” INPUT
DIP/SO
LOGIC
0
1
DG442
SWITCH
OFF
ON
N.C. = Not Internally Connected
_______________________________________________________________________________________
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
Improved, Quad, SPST Analog Switches
DG441/DG442
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V-
V+.........................................................................................44V
GND .....................................................................................25V
V
L
...................................................(GND - 0.3V) to (V+ + 0.3V)
Digital Inputs, V
S
, V
D
(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 (T
A
= +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) ............842mW
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/DG442D ..............................................-40°C to +85°C
DG441AK/DG442AK .......................................-65°C to +150°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, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
SWITCH
Analog-Signal Range
Drain-Source On-Resistance
V
ANALOG
r
DS(ON)
(Note 3)
V+ = 13.5V, V- = -13.5V, T
A
= +25°C
I
S
= -10mA,
T
A
= T
MIN
to T
MAX
V
D
= 8.5V or -8.5V
V+ = 15V, V- = -15V,
V
D
= ±10V,
I
S
= -10mA
V+ = 15V, V- = -15V,
V
D
= 5V or -5V,
I
S
= -10mA
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-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
Ω
Ω
V
Ω
SYMBOL
CONDITIONS
MIN
TYP
(Note 2)
MAX
UNITS
On-Resistance Match
Between Channels (Note 4)
On-Resistance Flatness
(Note 4)
∆r
DS(ON)
r
FLAT(ON)
I
S(OFF)
I
D(OFF)
Drain On-Leakage Current
(Note 5)
DIGITAL
Input Current with
Input Voltage High
Input Current with
Input Voltage Low
I
D(ON)
or
I
S(ON)
T
A
= +25°C
V+ = 16.5V, V- = -16.5V,
V
D
= ±15.5V,
C, D
T
A
= T
MAX
V
S
= ±15.5V
A
I
INH
I
INL
V
IN
= 2.4V
V
IN
= 0.8V
2
_______________________________________________________________________________________
±
Drain Off-Leakage Current
(Note 5)
T
A
= +25°C
V+ = 16.5V, V- = -16.5V,
V
D
= 15.5V,
C, D
T
A
= T
MAX
V
S
= ±15.5V
A
±
Source Off-Leakage Current
(Note 5)
T
A
= +25°C
V+ = 16.5V, V- = -16.5V,
V
D
= 15.5V,
C, D
T
A
= T
MAX
V
S
= ±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, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
SUPPLY
Power-Supply Range
Positive Supply Current
V+, V-
I+
All channels on or off, V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
All channels on or off,
V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-1
-5
-100
-15
±4.5
15
-0.0001
±20.0
100
1
µA
5
µA
V
µA
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
I
GND
All channels on or off, V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
t
ON
t
OFF
Q
OIRR
V
S
= ±10V, R
L
= 1kΩ, Figure 2 T
A
= +25°C
DG441, V
D
= ±10V, Figure 2
DG442, V
D
= ±10V, Figure 2
C
L
= 1nF, V
GEN
= 0V,
R
GEN
= 0Ω, Figure 3
R
L
= 50Ω, C
L
= 5pF,
f = 1MHz, Figure 4
R
L
= 50Ω, C
L
= 5pF,
f = 1MHz, Figure 5
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
150
90
110
5
60
-100
4
4
16
250
120
170
10
ns
ns
pC
dB
dB
pF
pF
pF
C
S(OFF)
C
D(OFF)
C
D(ON)
f = 1MHz, Figure 6
f = 1MHz, Figure 6
f = 1MHz, Figure 6
_______________________________________________________________________________________
3
Improved, Quad, SPST Analog Switches
DG441/DG442
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = 12V, V- = 0V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, 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)
t
ON
t
OFF
Q
V
S
= 8V, Figure 2
V
S
= 8V, Figure 2
C
L
= 1nF, V
GEN
= 0V
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
300
60
5
400
200
10
ns
ns
pC
V+
I+
I-
I
GND
All channels on or off, V
IN
= 0V or 5V
All channels on or off,
V
IN
= 0V or 5V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-1
-5
-100
-15
10
15
-0.0001
30
100
1
5
V
µA
µA
µA
V
ANALOG
r
DS(ON)
(Note 3)
V+ = 10.8V, V
D
= 3V, 8V,
I
S
= 1.0mA
T
A
= +25°C
T
A
= T
MIN
to T
MAX
0
100
12
160
200
V
Ω
SYMBOL
CONDITIONS
MIN
TYP
(Note 2)
MAX
UNITS
All channels on or off, V
IN
= 0V or 5V
Note 2:
Typical values are for
design aid only,
are not guaranteed, and are not subject to production testing. The algebraic con-
vention, 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 speci-
fied analog range.
Note 5:
Leakage parameters I
S(OFF)
, I
D(OFF)
, and I
D(ON)
are 100% tested at the maximum rated hot temperature and guaranteed
by correlation at +25°C.
Note 6:
Off-Isolation Rejection Ratio = 20log (V
D
/V
S
), V
D
= output, V
S
= input to off switch.
Note 7:
Between any two switches.
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, 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
T
A
= +125°C
T
A
= +85°C
V+ = 15V
V- = -15V
OFF-LEAKAGE (nA)
1
T
A
= +125°C
T
A
= +85°C
1.5
0.5
0
±5
±10
±15
±20
BIPOLAR SUPPLY VOLTAGE (V)
MIN
VIN (V)
2
V+ = 15V
V- = -15V
OFF-LEAKAGE CURRENTS
3.5
3.0
2.5
2.0
SWITCHING THRESHOLD vs.
BIPOLAR SUPPLY VOLTAGE
MAX
0
4
_______________________________________________________________________________________
Improved, Quad, SPST Analog Switches
____________________________Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
D
AND
BIPOLAR VOLTAGE AND TEMPERATURE
V+ = 15V, V- = -15V
120
100
rDS(ON) (Ω)
±5V
80
60
T
A
= +25°C
40
20
0
-20
-10
0
VD (V)
+10
+20
-15
-10
-5
0
VD (V)
5
10
15
T
A
= -55°C
T
A
= +125°C
DG441/DG442
ON-RESISTANCE vs. V
D
AND
UNIPOLAR SUPPLY VOLTAGE
250
225
200
175
rDS(ON) (Ω)
rDS(ON) (Ω)
150
125
100
75
50
25
0
0
5
10
VD (V)
15
20
V+ = 20V
V+ = 10V
V+ = 15V
120
90
60
30
0
180
150
ON-RESISTANCE vs. V
D
AND
BIPOLAR SUPPLY VOLTAGE
±15V
±10V
±20V
ON-RESISTANCE vs. V
D
AND UNIPOLAR
SUPPLY VOLTAGE AND TEMPERATURE
150
T
A
= +125°C
125
100
rDS(ON) (Ω)
75
50
25
0
0
4
VD (V)
8
12
V+ = 12V
V- = 0V
T
A
= +25°C
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
T
A
= -55°C
120
80
tON
tOFF
tON
tOFF
40
0
±5
±10
±15
±20
BIPOLAR SUPPLY VOLTAGE (V)
10
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
V
D
(V)
10
15
0
-10
0
5
V
D
(V)
10
15
_______________________________________________________________________________________
5
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