Metal Can
IN2
Top View
S2
V–
D2
D1
V+ (Substrate and Case)
S1
IN1
NC
GND
1
2
3
456
7
8
9
10
NC V+
D1D2
NC NC
S1S2
NC
IN2
IN1
NC
GND V–
Dual-In-Line
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Top View
DG300A DG300A
DG301A
V–
Dual-In-Line
V+
D2
NC
S2
NC
NC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Top View
Metal Can
NC
Top View
S2
V–
D2
D1
V+ (Substrate and Case)
S1
IN
NC
GND
1
2
3
456
7
8
9
10
DG301A
DG300A/301A/302A
Vishay Siliconix
Document Number: 70044
S–02969—Rev. D, 22-Jan-01 www.vishay.com
1
CMOS Analog Switches
FEATURES BENEFITS APPLICATIONS
DAnalog Signal Range: "15 V
DFast Switching—tON: 150 ns
DLow On-Resistance—rDS(on): 30
DSingle Supply Operation
DLatch-up Proof
DCMOS Compatible
DFull Rail-to-Rail Analog Signal Range
DLow Signal Error
DLow Power Dissipation
DLow Level Switching Circuits
DProgrammable Gain Amplifiers
DPortable and Battery Powered Systems
DESCRIPTION
The DG300A/DG301A/DG302A monolithic CMOS switches
feature three switch configuration options (SPST, SPDT, and
DPST) for precision applications in communications,
instrumentation and process control, where low leakage
switching combined with low power consumption are required.
Designed on the Vishay Siliconix PLUS-40 CMOS process,
these switches are latch-up proof, and are designed to block
up to 30 V peak-to-peak when off. An epitaxial layer prevents
latchup.
In the on condition the switches conduct equally well in both
directions (with no offset voltage) and minimize error
conditions with their low on-resistance.
Featuring low power consumption (3.5 mW typ) these
switches are ideal for battery powered applications, without
sacrificing switching speed. Designed for break-before-make
switching action, these devices are CMOS and quasi TTL
compatible. Single supply operation is allowed by connecting
the V– rail to 0 V.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
TRUTH TABLE
Logic Switch
0 OFF
1 ON
Logic “0” v 0.8 V
Logic “1” w 4 V
TRUTH TABLE
Logic SW1SW2
0 OFF ON
1 ON OFF
Logic “0” v 0.8 V
Logic “1” w 4 VLogic “1”
w
4 V
DG302A
NC V+
S3S4
D3D4
D1D2
S1S2
IN1IN2
GND V–
Dual-In-Line
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Top View
DG300A/301A/302A
Vishay Siliconix
www.vishay.com
2Document Number: 70044
S–02969—Rev. D, 22-Jan-01
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
TRUTH TABLE
Logic Switch
0 OFF
1 ON
Logic “0” v 0.8 V
Logic “1” w 4 V
ORDERING INFORMATION
Temp Range Package Part Number
DG300A
0 to 70_C14-Pin Plastic DIP DG300ACJ
DG300AAK
14-Pin CerDIP DG300AAK/883
_JM38510/11601BCA
–55 to 125_C14-Pin Sidebraze JM38510/11601BCC
DG300AAA/883
10-Pin Metal Can JM38510/11601BIA
DG301A
0 to 70_C14-Pin Plastic DIP DG301ACJ
DG301AAK/883
14-Pin CerDIP JM38510/11602BCA
_14-Pin Sidebraze JM38510/11602BCC
–55 to 125_CDG301AAA
10-Pin Metal Can DG301AAA/883
JM38510/11602BIA
DG302A
0 to 70_C14-Pin Plastic DIP DG302ACJ
DG302AAK
_14-Pin CerDIP DG302AAK/883
–55 to 125_CJM38510/11603BCA
14-Pin Sidebraze JM38510/11603BCC
DG300A/301A/302A
Vishay Siliconix
Document Number: 70044
S–02969—Rev. D, 22-Jan-01 www.vishay.com
3
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to V–
V+ 44 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GND 25 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital InputsNO TAG, VS, VD(V–) –2 V to (V+) +2V or. . . . . . . . . . . . . . . . . . .
30 mA, whichever occurs first
Current, Any Terminal 30 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous Current, S or D
(Pulsed at 1 ms, 10% duty cycle max) 100 mA. . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature (A Suffix) –65 to 150_C. . . . . . . . . . . . . . . . . . . .
(C Suffix) –65 to 125_C. . . . . . . . . . . . . . . . . . . .
Power DissipationNO TAG
14-Pin Plastic DIPNO TAG 470 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14-Pin CerDIPNO TAG 825 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-Pin Metal CanNO TAG 450 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 6.5 mW/_C above 25_C
d. Derate 11 mW/_C above 75_C
e. Derate 6 mW/_C above 75_C
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
FIGURE 1.
Level
Shift/
Drive
VIN
S
V+
GND
V–
D
V–
V+
DG300A/301A/302A
Vishay Siliconix
www.vishay.com
4Document Number: 70044
S–02969—Rev. D, 22-Jan-01
SPECIFICATIONSa
Test Conditions
Unless Specified A Suffix
–55 to 125_CC Suffix
0 to 70_C
Parameter Symbol V+ = 15 V, V– = –15 V
VIN = 0.8 V or VIN = 4 VfTempbTypcMindMaxdMindMaxdUnit
Analog Switch
Analog Signal RangeeVANALOG Full –15 15 –15 15 V
Drain-Source On-Resistance rDS(on) VD = "10 V, IS = –10 mA Room
Full 30 50
75 50
75
Source Off Leakage Current IS(off)
" #
Room
Hot "0.1 –1
–100 1
100 –5
–100 5
100
Drain Off Leakage Current ID(off) VS = "14 V, VD = #14 V Room
Hot "0.1 –1
–100 1
100 –5
–100 5
100 nA
Drain On Leakage Current ID(on) VD = VS = "14 V Room
Hot "0.1 –1
–100 1
100 –5
–100 5
100
Digital Control
Input Current with VIN = 5 V Room
Full –0.001 –1
–1–1
Input Current with
Input Voltage High IINH VIN = 15 V Room
Full 0.001 1
11A
Input Current with
Input Voltage Low IINL VIN = 0 V Room
Full –0.001 –1
–1–1
Dynamic Characteristics
Turn-On Time tON Room 150 300
Turn-Off Time tOFF See Figure NO TAG Room 130 250
Break-Before-Make Time tOPEN DG301A Only
Figure NO TAG Room 50 ns
Charge Injection QCL = 1 nF, Rgen = 0
Vgen = 0 V, Figure NO TAG Room 8 pC
Source-Off Capacitance CS(off) Room 14
Drain-Off Capacitance CD(off) VS, VD = 0 V, f = 1 MHz Room 14
Channel-On Capacitance CD(on)
S D Room 40 pF
VIN = 0 V Room 6
Input Capacitance Cin f = 1 MHz VIN = 15 V Room 7
Off-Isolation OIRR V
IN
= 0 V, R
L
= 1 kRoom 62
Crosstalk (Channel-to-Channel) XTALK VIN = 0 V, RL = 1 k
VS = 1 Vrms, f = 500 kHz Room 74 dB
Power Supplies
Positive Supply Current I+ VIN = 4 V (One Input) Room
Full 0.23 0.5
11mA
Negative Supply Current I–
VIN = 4 V (One Input)
All Others = 0 V Room
Full –0.001 –10
–100 –100
Positive Supply Current I+ Room
Full 0.001 10
100 100 A
Negative Supply Current I–VIN = 0.8 V (All Inputs) Room
Full –0.001 –10
–100 –100
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.
DG300A/301A/302A
Vishay Siliconix
Document Number: 70044
S–02969—Rev. D, 22-Jan-01 www.vishay.com
5
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
rDS(on) vs. VD and Power Supply
Charge Injection vs. Analog Voltage
Switching Time and Break-Before-Make Time
vs. Positive Supply Voltage
rDS(on) vs. VD and Temperature
rDS(on) vs. VD and Power Supply Voltage
rDS(on)
– Drain-Source On-Resistance ( )
rDS(on)
– Drain-Source On-Resistance ( )
rDS(on)
– Drain-Source On-Resistance ( )
Q (pC)
(ns)tON
,t
OFF
VD – Drain Voltage (V) VD – Drain Voltage (V)
VD – Drain Voltage (V)
VS – Source Voltage (V)
V+ – Positive Supply (V)
90
–25 –15 –5 5 15 25
70
50
30
10
"5 V
TA = 25_C
60
–15 –10 –50 51015
50
40
30
20
10
V+ = 15 V
V– = –15 V
0 5 10 15 20
20
V– = 0 V
TA = 25_C
50
–15 –10 –5051015
40
30
20
10
0
V+ = 15 V
V– = –15 V
CL = 1 nF
500
0 5 10 15
400
300
200
100
0
DG301/303 Only
tOPEN
tOFF
tON
V– = –15 V
TA = 25_C
VINH = 4 V
VINL = 0 V
TA = 125_C
TA = 25_C
TA = –55_C
"8 V
"10 V
"12 V
"15 V
"20 V
40
60
80
100 7.5 V
10 V
15 V
20 V
Input Switching Threshold
vs. Positive Supply Voltage
V+ – Positive Supply (V)
(V)
T
V
0
5
4
3
2
1
51015
V– = –15 V
TA = 25_C
DG300A/301A/302A
Vishay Siliconix
www.vishay.com
6Document Number: 70044
S–02969—Rev. D, 22-Jan-01
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
"10
Supply Current vs. Temperature
Leakage vs. Temperature
Switching Time vs. Power Supply Voltage
Off Isolation and Crosstalk vs. Frequency
Supply Curents vs. Switching Frequency
Temperature (_C) f – Frequency (Hz)
f – Frequency (Hz) Temperature (_C)
Supply Voltage (V)
I+, I– ( A)
(dB)
I+, I– (mA)
IS
T ime (ns)
–55 –35 –15 5 25 45 65 85 105 125
500
400
300
200
100
0
–100
I+
I–
–55 –35 –15 5 25 45 65 85 105 125
V+ = 15 V
V– = –15 V
VS, VD = "14 V
10 pA
ID(on)
ID(off) or IS(off)
100 pA
1 nA
10 nA
100 nA
–120
–2010 k 100 k 1 M 10 M
V+ = +15 V
V– = –15 V
RL= 50
Crosstalk
Off Isolation
–100
–80
–60
–40
15
0
+I
–I
V+ = 15 V
V– = –15 V
5
10
1 k 10 k 100 k 1 M
400
350
300
250
200
150
100
50
0
tOFF
tON
, I D
"12 "14 "16 "18 "20 "22
Switching Time vs. Temperature
Temperature (_C)
–55
400
350
300
250
200
150
100
50
–35 –15 5 25 45 65 85 105 125
0
tOFF
tON
V+ = 15 V
V– = –15 V
VS = 3 V
T ime (ns)
V+ = 15 V
V– = –15 V
VIN = 4 V (One Input)
(All Other = 0 V)
DG300A/301A/302A
Vishay Siliconix
Document Number: 70044
S–02969—Rev. D, 22-Jan-01 www.vishay.com
7
TEST CIRCUITS
FIGURE 2. Switching Time
VS = 3 V
RL
RL + rDS(on)
VO = VS
CL (includes fixture and stray capacitance)
V–
V+
IN
S
CL
33 pF
D
5 V
RL
300
VO
–15 V
GND
+15 V
50%
90%
0 V
0 V
10%
Logic
Input
Switch
Output
VS
tON tOFF
Logic “1” = Switch On
FIGURE 3. Break-Before-Make SPDT (DG301A)
0 V
50%
50%
50%
0 V
0 V
Logic
Input
Switch
Output
Switch
Output
Logic “1” = Switch On
VINH
VS1
VS2
VO1
VO2
tBBM
VO1
S2
S1
D2
RL2
300 CL2
33 pF
V+
VO2
VS2 = 3 V
IN
VS1 = 3 V
RL1
300 CL1
33 pF
CL (includes fixture and stray capacitance)
V–
D1
–15 V
GND
+15 V
FIGURE 4. Charge Injection
ON OFF ON
INX
VO
VO
CL
1 nF
3 V V–
–15 V
VO
GND
V+
RgS
Vg
D
IN
+15 V
DG300A/301A/302A
Vishay Siliconix
www.vishay.com
8Document Number: 70044
S–02969—Rev. D, 22-Jan-01
APPLICATION HINTSNO TAG
V+
Positive Supply
Voltage
(V)
V–
Negative Supply
Voltage
(V)
GND
Voltage
(V)
VIN
Logic Input
Voltage
VINH(min)/VINL(max)
(V)
VS or VD
Analog Voltage
Range
(V)
15
20
15
–15
–20
0
0
0
0
4/0.8
4/0.8
4/0.8
–15 to 15
–20 to 20
0 to 15
Note:
a. Application Hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing.
APPLICATIONS
The DG300A series of analog switches will switch positive
analog signals while using a single positive supply. This
facilitates their use in applications where only one supply is
available. The trade-offs of using single supplies are:
1) Increased rDS(on); 2) slower switching speed. The analog
voltage should not go above or below the supply voltages
which in single operation are V+ and 0 V. (See Input Switching
Threshold vs. Positive Supply Voltage Curve.)
+15 V
+15 V
+15 V
DG301A
TTL Input
+5 V
10 k
10 k
5 k
5 k
100 k
10 F
50 k
VOUT
FIGURE 5. Single Supply Op Amp Switching
DG300A/301A/302A
Vishay Siliconix
Document Number: 70044
S–02969—Rev. D, 22-Jan-01 www.vishay.com
9
APPLICATIONS
Diff. IN B
+15 V +15 V
Diff. IN A
DG301A
DG302A
GND
+15 V –15 V
–15 V
+15 V
–15 V
CMOS Logic
Input Select
High = Diff. IN B
CMOS Logic
Gain Select
High = AV = 101
R1
16 kRi1
1.5 k
R2
75 k
75 k
R2
75 k
R4
R6
75 k
VOUT
75 k
R5
67 k
R750 k
VOSNULL
Voltage gain of the instrumentation amplifier is:
AV = 1 + (In the circuit shown, AV1 = 10.4, AV2 = 101)
2R2
R1
FIGURE 6. Low Power Instrumentation Amplifier with Digitally Selectable Inputs and Gain
+
–
