DG381A_MIL Datasheet

DG381A_MIL/390A_MIL
Vishay Siliconix
CMOS Analog Switches
(Obsolete for non-hermetic. Use DG381B and DG390B as pin-for-pin replacements)
FEATURES
D
D
D
D
BENEFITS
APPLICATIONS
"15-V Input Range
D Full Rail-to-Rail Analog Signal Range D Low Level Switching Circuits
Low rDS(on): 30 W
D Minimizes Signal Error
D Programmable Gain Amplifiers
Single Supply Operation
D Low Power Dissipation
D Portable and Battery Powered
Sytems
Pin and Function Compatible with the
JFET DG180 Family
DESCRIPTION
The DG381A_MIL and DG390A_MIL monolithic CMOS
analog switches were designed for applications in
instrumentation, communications, and process control. This
series is suited for applications requiring fast switching and
nearly flat on-resistance over the entire voltage range.
switches are ideal for battery powered applications, without
sacrificing switching speed. Break-before-make switching
action is guaranteed, and an epitaxial layer prevents latchup.
Single supply operation is allowed by connecting the V– rail to
0 V.
Designed on Vishay Siliconix’ PLUS-40 CMOS process,
these devices achieve low power consumption (3.5 mW
typical) and excellent on/off switch performance. These
Each switch conducts equally well in both directions when on,
and blocks up to the supply voltage when off. These switches
are CMOS and quasi TTL logic compatible.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
CerDIP
DG381A_MIL
S1
1
14
S2
D1
2
13
D2
NC
3
12
NC
NC
4
11
NC
IN1
5
10
IN2
V+
6
9
V–
NC
7
8
GND
DG390A_MIL
Top View
TRUTH TABLE
Logic
Switch
0
ON
1
OFF
Logic “0” v 0.8 V
Logic “1” w 4 V
CerDIP
D1
1
16
S1
NC
2
15
IN1
D3
3
14
V–
S3
4
13
GND
S4
5
12
NC
D4
6
11
V+
NC
7
10
IN2
D2
8
9
S2
Document Number: 71401
S-02967—Rev. A, 22-Jan-01
Top View
TRUTH TABLE
Logic
SW1, SW2
SW3, SW4
0
OFF
ON
1
ON
OFF
Logic “0” v 0.8 V
Logic “1” w 4 V
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DG381A_MIL/390A_MIL
Vishay Siliconix
ORDERING INFORMATION
Temp Range
Package
Part Number
14-Pin CerDIP
DG381AAK/883
DG381A_MIL
–55 to 125_C
DG390A_MIL
–55 to 125_C
_
DG390AAK
16-Pin CerDIP
DG390AAK/883
ABSOLUTE MAXIMUM RATINGS
Power Dissipationb
14-Pin CerDIPc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 825 mW
Voltages Referenced to V–
V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 V
GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V
Digital Inputsa, VS, VD . . . . . . . . . . . . . . . . . . . . . . . . (V–) –2 V to (V+) +2V or
30 mA, whichever occurs first
Current, Any Terminal Except S or D . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA
Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA
(Pulsed at 1 ms, 10% duty cycle max) . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA
Storage Temperature
(AAK Suffix) . . . . . . . . . . . . . . . . . –65 to 150_C
Notes:
a. Signals on SX, DX, or INX exceeding V+ or V– will be clamped by internal
diodes. Limit forward diode current to maximum current ratings.
b. All leads welded or soldered to PC Board.
c. Derate 11 mW/_C above 75_C
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
V+
S
V–
VIN
Level
Shift/
Drive
V+
GND
D
V–
FIGURE 1.
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Document Number: 71401
S-02967—Rev. A, 22-Jan-01
DG381A_MIL/390A_MIL
Vishay Siliconix
SPECIFICATIONSa
Limits
Test Conditions Unless Specified
–55 to 125_C
V+ = 15 V, V– = –15 V
VIN = 0.8 V or 4 Vf
Tempb
Mind
VANALOG
Full
–15
rDS(on)
VD = "10 V, IS = –10 mA
Room
Full
Source Off
Leakage Current
IS(off)
VS = "14 V, VD = #14 V
Room
Hot
Drain Off
Leakage Current
ID(off)
VS = "14 V, VD = #14 V
Drain On
Leakage Current
ID(on)
Parameter
Symbol
Typc
Maxd
Unit
Analog Switch
Analog Signal Rangee
Drain-Source
On-Resistance
15
V
30
50
75
W
–1
–100
"0.1
1
100
Room
Hot
–1
–100
"0.1
1
100
VD = VS = "14 V
Room
Hot
–11
–100
"0.1
1
100
VIN = 5 V
Room
Full
–1
–1
–0.001
VIN = 15 V
Room
Full
VIN = 0 V
Room
Full
nA
Digital Control
Input Current with
Input Voltage High
IINH
Input Current with
Input Voltage Low
IINL
0.001
–1
–1
1
1
mA
–0.001
Dynamic Characteristics
Turn-On Time
tON
Turn-Off Time
tOFF
Break-Before-Make Time
Charge Injection
Source-Off Capacitance
Room
150
300
Room
130
250
tOPEN
See Figure 3
Room
50
Q
CL = 0.01 mF, Rgen = 0 W Vgen = 0 V
Room
10
Room
14
Room
14
Room
40
VIN = 0 V
Room
6
VIN = 15 V
Room
7
Room
62
Room
74
Room
Full
0.23
CS(off)
Drain-Off Capacitance
CD(off)
Channel-On Capacitance
CD(on)
Input Capacitance
See Figure 2
CIN
Off-Isolation
OIRR
Crosstalk
(Channel-to-Channel)
XTALK
f = 1 MHz; VS, VD = 0 V
f = 1 MHz
VIN = 0 V, RL = 1 kW
W
VS = 1 Vrms, f = 500 kHz
ns
pC
pF
dB
Power Supplies
Positive Supply Current
I+
Negative Supply Current
I–
Positive Supply Current
I+
VIN = 4 V (One Input)
(All Others = 0)
I–
–10
–100
Room
Full
VIN = 0.8 V (All Inputs)
Negative Supply Current
Room
Full
Room
Full
mA
10
100
mA
–0.001
0.001
–10
–100
0.5
1.0
–0.001
Notes:
a. Refer to PROCESS OPTION FLOWCHART.
b. Room = 25_C, Full = as determined by the operating temperature suffix.
c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
d. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
e. Guaranteed by design, not subject to production test.
f.
VIN = input voltage to perform proper function.
Document Number: 71401
S-02967—Rev. A, 22-Jan-01
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DG381A_MIL/390A_MIL
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
rDS(on) vs. VD and Power Supply
rDS(on) vs. VD and Temperature
60
TA = 25_C
r DS(on)– Drain-Source On-Resistance ( W )
r DS(on)– Drain-Source On-Resistance ( W )
100
80
"5 V
60
"7.5 V
40
"10 V
"15 V
20
0
"20 V
–20
–15
–10
–5
0
5
10
15
50
40
125_C
30
25_C
20
–55_C
10
20
–15
–10
–5
0
5
10
15
VD – Drain Voltage (V)
VD – Drain Voltage (V)
Charge Injection vs. Analog Voltage (VS)
Switching Time and Break-Before-Make
Time vs. Positive Supply Voltage
50
500
V+ = 15 V
V– = –15 V
CL = 1 nF
40
V+ = 15 V
V– = –15 V
V– = –15 V
TA = 25_C
VINH = 4 V
VINL = 0 V
t ON , t OFF (ns)
400
Q (pC)
30
20
10
tOFF
300
tON
200
100
tOPEN
DG301/303 Only
0
–15
0
–10
–5
0
5
10
15
0
5
VS – Source Voltage (V)
10
15
V+ – Positive Supply Voltage (V)
Input Switching Threshold
vs. Positive Supply Voltage
Supply Current vs. Temperature
5
500
V– = 0 to –15V
TA = 25_C
400
4
ÇÇÇÇÇÇÇÇ
ÇÇÇÇÇÇÇÇ
ÇÇÇÇÇÇÇÇ
V T (V)
2
1
I+, I– ( A)
300
3
200
I+
V+ = 15 V
V– = –15 V
VIN = 4 V (One Input)
(All Other = 0 V)
100
I–
0
0
5
10
V+ – Positive Supply Voltage (V)
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4
15
–100
–55
–35
–15
5
25
45
65
85
105
125
Temperature (_C)
Document Number: 71401
S-02967—Rev. A, 22-Jan-01
DG381A_MIL/390A_MIL
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Off Isolation and Crosstalk vs. Frequency
Supply Curents vs. Switching Frequency
120
15
V+ = 15 V
V– = –15 V
100
Crosstalk
10
I+, I– (mA)
(dB)
80
Off Isolation
60
5
40
V+ = 15 V
V– = –15 V
RL= 50 W
+I
–I
0
20
10 k
100 k
1M
1k
10 M
10 k
f – Frequency (Hz)
400
V+ = 15 V
V– = –15 V
VS, VD = "14 V
V+ = 15 V
V– = –15 V
350
300
t ON, t OFF (ns)
I S, I D Current
1M
Switching Time vs. Power Supply Voltage
Leakage vs. Temperature
100 nA
10 nA
100 k
f – Frequency (Hz)
ID(on)
1 nA
100 pA
ID(off) or IS(off)
250
tON
200
tOFF
150
100
50
10 pA
–55 –35
0
–15
5
25
45
65
85
105
10
125
Switching Time vs. Temperature
170
400
V+ = 15 V
V– = –15 V
VS = 3 V
r DS(on)– Drain-Source On-Resistance ( W )
350
t ON, t OFF (ns)
300
250
tON
200
150
tOFF
100
50
0
–55
12
14
16
18
20
22
V+, V– Positive and Negative Supplies (V)
Temperature (_C)
rDS(on) vs. Analog and Positive Supply Voltage
V– = 0 V
TA = 25_C
150
V+ = 5 V
130
110
90
V+ = 10 V
70
V+ = 15 V
50
30
10
–35
–15
5
25
45
65
Temperature (_C)
Document Number: 71401
S-02967—Rev. A, 22-Jan-01
85
105
125
0
2
4
6
8
10
12
14
V+, V– Positive and Negative Supplies (V)
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DG381A_MIL/390A_MIL
Vishay Siliconix
TEST CIRCUITS
+15 V
Logic “1” = Switch On
V+
VS = 3 V
Logic
Input
D
S
VO
50%
VINH
0V
IN
RL
300 W
5V
V–
GND
VS
CL
33 pF
90%
10%
0V
–15 V
Switch
Output
CL (includes fixture and stray capacitance)
tON
tOFF
RL
VO = VS
RL + rDS(on)
FIGURE 2. Switching Time
+15 V
V+
VS1 = 3 V
VS2 = 3 V
S1
D1
S2
D2
VO1
VO2
IN
V–
GND
Logic “1” = Switch On
Logic
Input
Switch
Output
RL1
300 W
RL2
300 W
CL1
33 pF
CL2
33 pF
VINH
50%
0V
VS1
50%
VO1
0V
VS2
VO2
Switch
Output
50%
0V
tBBM
–15 V
CL (includes fixture and stray capacitance)
FIGURE 3. Break-Before-Make SPDT
+15 V
Rg
V+
S
IN
Vg
VO
CL
1 nF
5V
GND
DVO
D
VO
INX
ON
V–
OFF
ON
–15 V
FIGURE 4. Charge Injection
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Document Number: 71401
S-02967—Rev. A, 22-Jan-01
DG381A_MIL/390A_MIL
Vishay Siliconix
APPLICATIONS
The DG381A_MIL and DG390A_MIL analog switches will
switch positive analog signals while using a single positive
supply. This allows their use in applications where only one
supply is available. The trade-offs or performance given up
while using single supplies are: 1) increased rDS(on), 2) slower
switching speed. Typical curves for aid in designing with single
supplies are supplied (see Typical Characteristics). The
analog voltage should not go above or below the supply
voltages which in single operation are V+ and 0 V.
In the integrator of Figure 4, RD controls the discharge rate of
the capacitor so that the pulsed or continuous current ratings
are not exceeded. During reset SW1 is closed and SW2 is
open. Opening SW2 with SW1 also open will hold the integrator
output at its present value.
RD
SW1
C
Reset
VIN
R
SW2
–
1
V O + RC
Start/Stop
ŕ VIN ·Ădt
+
DG381A _MIL
R
FIGURE 5. Integrator with Reset and Start/Stop
Document Number: 71401
S-02967—Rev. A, 22-Jan-01
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Disclaimer
All product specifications and data are subject to change without notice.
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(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
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therein, which apply to these products.
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Document Number: 91000
Revision: 18-Jul-08
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