Vishay Siliconix
DG308A, DG309
Document Number: 70046
S11-0303-Rev. G, 28-Feb-11
www.vishay.com
1
Quad Monolithic SPST CMOS Analog Switches
FEATURES
• ± 15 V analog input range
• Low on-resistance: 60
• Fast switching: 130 ns
• Low power dissipation: 30 nW
• CMOS logic compatible
BENEFITS
• Full rail-to-rail analog signal range
• Low signal error
• Wide dynamic range
• Single or dual supply capability
• Static protected logic inputs
• Space savings (TSSOP)
APPLICATIONS
• Portable and battery powered instrumentation
• Communication systems
• Computer peripherals
• High-speed multiplexing
DESCRIPTION
Featuring low on-resistance (60 ) and fast switching
(130 ns), the DG308A is supplied in the “normally open”
configuration while DG309 is supplied “normally closed”.
Input thresholds are high voltage CMOS compatible.
Designed with the Vishay Siliconix PLUS-40 CMOS process
to combine low power dissipation with a high breakdown
voltage rating of 44 V, each switch conducts equally well in
both directions when on, and blocks up to the supply voltage
when off. An epitaxial layer prevents latch up.
The DG308B, DG309B upgrades are recommended for new
designs.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
For SPST Switches per Package
Logic “0” 3.5 V
Logic “1” 11 V
* Pb containing terminations are not RoHS compliant, exemptions may apply
IN1IN2
D1D2
S1S2
V– V+
GND NC
S4S3
D4D3
IN4IN3
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Top View
DG308A
TRUTH TABLE
Logic DG308A DG309
0 OFF ON
1ONOFF
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Document Number: 70046
S11-0303-Rev. G, 28-Feb-11
Vishay Siliconix
DG308A, DG309
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 12 mW/°C above 75 °C.
d. Derate 6.5 mW/°C above 25 °C.
e. Derate 7.6 mW/°C above 75 °C.
ORDERING INFORMATION
Temp. Range Package Part Number
0 °C to 70 °C 16-Pin Plastic DIP
DG308ACJ
DG308ACJ-E3
DG309CJ
DG309CJ-E3
- 40 °C to 85 °C
16-Pin Narrow SOIC
DG308ADY
DG308ADY-E3
DG308ADY-T1
DG308ADY-T1-E3
DG309DY
DG309DY-E3
DG309DY-T1
DG309DY-T1-E3
16-Pin TSSOP
DG308ADQ
DG308ADQ-E3
DG308ADQ-T1
DG308ADQ-T1-E3
DG309DQ
DG309DQ-E3
DG309DQ-T1
DG309DQ-T1-E3
ABSOLUTE MAXIMUM RATINGS
Parameter Limit Unit
Voltages Referenced V+ to V- 44
V
GND 25
Digital Inputsa, VS, VD
(V-) - 2 to (V+) + 2 or
20 mA, whichever occurs first
Current, Any Terminal Except S or D 30
mA
Continuous Current S or D 20
(Pulsed at 1 ms, 10 % duty cycle max.) 70
Storage Temperature (AK Suffix) - 65 to 150 °C
(CJ, DY and DQ Suffix) - 65 to 125
Power Dissipationb
16-Pin Plastic DIPc470
mW16-Pin Narrow SOIC and TSSOPe600
16-Pin CerDIPd900
Document Number: 70046
S11-0303-Rev. G, 28-Feb-11
www.vishay.com
3
Vishay Siliconix
DG308A, DG309
SCHEMATIC DIAGRAM (Typical Channel)
Figure 1.
SPECIFICATIONSa
Parameter Symbol
Test Conditions
Unless Specified
V+ = 15 V, V- = - 15 V
VIN = 3.5 V or 11 VfTemp.b Typ.c
A Suffix
- 55 °C to 125°C C, D Suffix
Unit Min.d Max.dMin.d Max.d
Analog Switch
Analog Signal RangeeVANALOG Full - 15 15 - 15 15 V
Drain-Source
On-Resistance RDS(on) VD = ± 10 V, IS = 1 mA Room
Full
60 100
150
100
125
Source Off Leakage Current IS(off) VS = ± 14 V, VD = ± 14 V Room
Full
± 0.1 - 1
100
1
100
- 5
- 100
5
100
nADrain Off Leakage Current ID(off) VD = ± 14 V, VS = ± 14 V Room
Full
± 0.1 - 1
100
1
100
- 5
- 100
5
100
Drain On Leakage Current ID(on) VD = VS = ± 14 V Room
Full
± 0.1 - 1
100
1
100
- 5
- 200
5
200
Digital Control
Input Current with
Input Voltage High IINH VIN = 15 V Full 0.001 1 1
µA
Input Current with
Input Voltage Low IINL VIN = 0 V Full - 0.001 - 1 - 1
Input Capacitance CIN Room 8 pF
Dynamic Characteristics
Tu r n - On T im e t ON see figure 2 Room 130 200 200 ns
Turn-Off Time tOFF Room 90 150 150
Charge Injection Q CL = 0.01 µF, Rgen = 0  Vgen = 0 V, Room - 10 pC
Source-Off Capacitance CS(off)
f = 140 kHz, VS, VD = 0 V
Room 11
pFDrain-Off Capacitance CD(off) Room 8
Channel-On Capacitance CD(on) Room 27
Off-IsolationfOIRR RL = 75 , VS = 2 Vp-p, f = 500 kHz Room 78 dB
Level
Shift/
Drive
VIN
S
V+
GND
V-
D
V-
V+
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4
Document Number: 70046
S11-0303-Rev. G, 28-Feb-11
Vishay Siliconix
DG308A, DG309
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.
Stresses beyond those listed under “Absolut e Maximum Ratings” may cause permanent damage to t he device. These are stress rating s only, and functional opera tion
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.
TYPICAL CHARACTERISTICS (25 °C, unless otherwise noted)
SPECIFICATIONSa
Parameter Symbol
Test Conditions
Unless Specified
V+ = 15 V, V- = - 15 V
VIN = 3.5 V or 11 VfTemp.b Typ.c
A Suffix
- 55 °C to 125°C C, D Suffix
Unit Min.d Max.dMin.d Max.d
Power Supplies
Positive Supply Current I+ all channels on or off
VIN = 0 V or 15 V
Room
Full
0.001 10
100
10
100 µA
Negative Supply Current I- Room
Full
- 0.001 - 10
- 100
- 100
RDS(on) vs. VD and Power Supply
Leakage Currents vs. Analog Voltage
150
- 10 0 10 20
120
90
60
30
0
T
A
= 25 °C
155- 5- 15
R
DS(on)
- Drain-Source On-Resistance ()
± 5 V
± 7.5 V
± 10 V
± 15 V
± 20 V
V
D
- Drain Voltage (V)
- 20
- 12 - 6 0 6 12 1593- 3- 9- 15
10
0
- 10
- 20
- 30
(pA)
I, I
SD
TA = 25 °C
VD or VS - Drain or Source Voltage (V)
IS(off)
ID(off)
ID(on)
20
Supply Currents vs. Switching Frequency (All Inputs Active)
RDS(on) vs. VD and Power Supply Voltage
1000
800
600
400
200 I+
1 k 10 k 100 k 1 M
± 15 V Supplies
TA = 25 °C
I-
100
I+, I- (µA)
f - Frequency (Hz)
R
DS(on)
- Drain-Source On-Resistance ()
250
0 5 10 15 20
200
150
100
50
0
T
A
= 25 °C
V- = 0 V
+ 10 V
+ 15 V
+ 20 V
V+ = + 7.5 V
V
D
- Drain Voltage (V)
Document Number: 70046
S11-0303-Rev. G, 28-Feb-11
www.vishay.com
5
Vishay Siliconix
DG308A, DG309
TYPICAL CHARACTERISTICS (25 °C, unless otherwise noted)
APPLICATIONS
Single Supply Operation
The DG308A and DG309 will switch positive analog signals
while using a single positive supply. This will allow use in
many applications where only one supply is available. The
trade-offs or performance given up while using single
supplies are:
1) increased RDS(on) and 2) slower switching speed. As
stated in the absolute maximum ratings section of the data
sheet, the analog voltage should not go above or below the
supply voltages which in single supply operation are V+ and
0 V.
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see www.vishay.com/ppg?70046.
Input Switching Threshold
vs. V+ and V- Supply Voltages
10
0
8
6
4
2
V+, V- Positive and Negative Supplies (V)
(V)
T
V
TA = 25 °C
0± 5 ± 10 ± 15 ± 20
Input Switching Threshold vs. Positive
Supply Voltage
8
0 5 10 15
7
6
5
4
3
2
1
0
V+ - Positive Supply Voltage (V)
V- = 0 V
TA = 25 °C
(V)
T
V
Figure 2. Switching Time
All Leads
0.101 mm
0.004 IN
E
HC
D
e B A1 LĬ
4312 8756
131416 15 91012 11
Package Information
Vishay Siliconix
Document Number: 71194
02-Jul-01 www.vishay.com
1
SOIC (NARROW): 16ĆLEAD
JEDEC Part Number: MS-012
MILLIMETERS INCHES
Dim Min Max Min Max
A1.35 1.75 0.053 0.069
A10.10 0.20 0.004 0.008
B0.38 0.51 0.015 0.020
C0.18 0.23 0.007 0.009
D9.80 10.00 0.385 0.393
E3.80 4.00 0.149 0.157
e1.27 BS C 0.050 BSC
H5.80 6.20 0.228 0.244
L0.50 0.93 0.020 0.037
Ĭ0_8_0_8_
ECN: S-03946—Rev. F, 09-Jul-01
DWG: 5300
E1E
Q1
A
L
A1
e1B
B1
S
CeA
D
15°
MAX
12345678
16 15 14 13 12 11 10 9
Package Information
Vishay Siliconix
Document Number: 71261
06-Jul-01 www.vishay.com
1
PDIP: 16ĆLEAD
MILLIMETERS INCHES
Dim Min Max Min Max
A3.81 5.08 0.150 0.200
A10.38 1.27 0.015 0.050
B0.38 0.51 0.015 0.020
B10.89 1.65 0.035 0.065
C0.20 0.30 0.008 0.012
D18.93 21.33 0.745 0.840
E7.62 8.26 0.300 0.325
E15.59 7.11 0.220 0.280
e12.29 2.79 0.090 0.110
eA7.37 7.87 0.290 0.310
L2.79 3.81 0.110 0.150
Q11.27 2.03 0.050 0.080
S0.38 1.52 .015 0.060
ECN: S-03946—Rev. D, 09-Jul-01
DWG: 5482
E1E
Q1
A
L
A1
e1B
B1
L1
S
C
eA∝
D
12 3 4 5 6 78
16 15 14 13 12 11 10 9
Package Information
Vishay Siliconix
Document Number: 71282
03-Jul-01 www.vishay.com
1
CERDIP: 16ĆLEAD
MILLIMETERS INCHES
Dim Min Max Min Max
A4.06 5.08 0.160 0.200
A10.51 1.14 0.020 0.045
B0.38 0.51 0.015 0.020
B11.14 1.65 0.045 0.065
C0.20 0.30 0.008 0.012
D19.05 19.56 0.750 0.770
E7.62 8.26 0.300 0.325
E16.60 7.62 0.260 0.300
e12.54 BS C 0.100 BSC
eA7.62 BSC 0.300 BSC
L3.18 3.81 0.125 0.150
L13.81 5.08 0.150 0.200
Q11.27 2.16 0.050 0.085
S0.38 1.14 0.015 0.045
∝0°15°0°15°
ECN: S-03946—Rev. G, 09-Jul-01
DWG: 5403
Vishay Siliconix
Package Information
Document Number: 74417
23-Oct-06
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1
Symbols
DIMENSIONS IN MILLIMETERS
Min Nom Max
A - 1.10 1.20
A1 0.05 0.10 0.15
A2 - 1.00 1.05
B 0.22 0.28 0.38
C - 0.127 -
D 4.90 5.00 5.10
E 6.10 6.40 6.70
E1 4.30 4.40 4.50
e-0.65-
L 0.50 0.60 0.70
L1 0.90 1.00 1.10
y--0.10
θ10°3°6°
ECN: S-61920-Rev. D, 23-Oct-06
DWG: 5624
TSSOP: 16-LEAD
PAD Pattern
www.vishay.com Vishay Siliconix
Revision: 02-Sep-11 1Document Number: 63550
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
RECOMMENDED MINIMUM PAD FOR TSSOP-16
0.281
(7.15)
Recommended Minimum Pads
Dimensions in inches (mm)
0.171
(4.35)
0.055
(1.40)
0.012
(0.30)
0.026
(0.65)
0.014
(0.35)
0.193
(4.90)
Application Note 826
Vishay Siliconix
www.vishay.com Document Number: 72608
24 Revision: 21-Jan-08
APPLICATION NOTE
RECOMMENDED MINIMUM PADS FOR SO-16
RECOMMENDED MINIMUM PADS FOR SO-16
0.246
(6.248)
Recommended Minimum Pads
Dimensions in Inches/(mm)
0.152
(3.861)
0.047
(1.194)
0.028
(0.711)
0.050
(1.270)
0.022
(0.559)
0.372
(9.449)
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Revision: 12-Mar-12 1Document Number: 91000
Disclaimer
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