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
DG304A
V–
D2
D1
V+ (Substrate and Case)
S1
IN1
Metal Can
NC
GND
IN2
Top View
S2
1
2
3
456
7
8
9
10
DG304A
DG304A/305A/306A/307A
Siliconix
S-52880—Rev. C, 28-Apr-97 1
CMOS Analog Switches
Features Benefits Applications
15-V Input Range
Fast Switching—tON: 110 ns
Low rDS(on): 30
Single Supply Operation
CMOS Logic Levels
Micropower: 30 nW
Full Rail-to-Rail Analog Signal
Range
Low Signal Error
Wide Dynamic Range
Low Power Dissipation
Low Level Switching Circuits
Programmable Gain Amplifiers
Portable and Battery Powered
Systems
Description
The DG304A through DG307A series of monolithic
CMOS switches were designed for applications in
communications, instrumentation and process control.
This series is well suited for applications requiring fast
switching and nearly flat on-resistance over the entire
analog range.
Designed on the Siliconix PLUS-40 CMOS process to
achieve low power consumption and excellent on/off
switch performance, these 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 (for positive switch voltages) is
allowed by connecting the V– rail to 0 V.
Each switch conducts equally well in both directions
when on, and blocks up to the supply voltage when off.
These switches are CMOS input compatible.
Functional Block Diagram and Pin Configuration
Truth Table
Logic Switch
0 OFF
1 ON
Logic “0” 3.5 V
Lo
g
ic “1” 11 V
Logic
1
11
V
Updates to this data sheet may be obtained via facsimile by calling Siliconix FaxBack, 1-408-970-5600. Please request FaxBack document #70045.
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
DG305A 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
DG306A
GND V–
Dual-In-Line
NC V+
D1D2
NC NC
S1S2
NC
NC
IN
NC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Top View
DG305A
DG307A
S4
D2
NC
IN2
D3
Dual-In-Line
S3
IN1
D4
V–
D1
S1
GND
S2
V+
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Top View
DG304A/305A/306A/307A
2 Siliconix
S-52880—Rev. C, 28-Apr-97
Functional Block Diagram and Pin Configuration (Cont’d)
Truth Table
Logic SW1SW2
0 OFF ON
1 ON OFF
Logic “0” 3.5 V
Lo
g
ic “1” 11 V
Logic
1
11
V
Truth Table
Logic Switch
0 OFF
1 ON
Logic “0” 3.5 V
Logic “1” 11 V
Four SPST Switches per Package
Truth Table
Logic SW1, SW2SW3, SW4
0 OFF ON
1 ON OFF
Logic “0” 3.5 V
Logic “1” 11 V
DG304A/305A/306A/307A
Siliconix
S-52880—Rev. C, 28-Apr-97 3
Ordering Information
Temp Range Package Part Number
DG304A
–0 to 70_C14-Pin Plastic DIP DG304ACJ
14 Pin CerDIP
DG304AAK/883
55 to 125
_
C
14
-
Pin
CerDIP
JM38510/11605BCA
–
55
to
125_C
10-Pin Can JM38510/11605BIA
14-Pin Sidebraze JM38510/11605BCC
DG305A
14-Pin CerDIP JM38510/11605BCA
–55 to 125_C10-Pin Can JM38510/11606BIC
14-Pin Sidebraze JM38510/11606BCA
DG306A
–0 to 70_C14-Pin Plastic DIP DG306ACJ
14 Pin CerDIP
DG306AAK/883
–55 to 125_C
14
-
Pin
CerDIP
JM38510/11607BCA
14-Pin Sidebraze JM38510/11607BCC
DG307A
0 to 70_C14-Pin Plastic DIP DG307ACJ
–25 to 85_C DG307ABK
14 Pin CerDIP
DG307AAK
55 to 125
_
C
14
-
Pin
CerDIP
DG307AAK/883
–
55
to
125_C
JM38510/11608BCA
14-Pin Sidebraze JM38510/11608BCC
Absolute Maximum Ratings
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 30 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous Current, S or D
(Pulsed at 1 ms, 10% duty cycle max) 100 mA. . . . . . . . . . . . . . . . . . .
Storage Temperature (AAA, AAK, ABK Suffix) –65 to 150_C
(ACJ Suffix) –65 to 125_C. . . . . . . . . . .
Power Dissipationb
14-Pin Plastic DIPc470 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14-Pin CerDIPd825 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10-Pin Metal Cane450 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 11 mW/_C above 75_C
d. Derate 6.5 mW/_C above 25_C
e. Derate 6 mW/_C above 75_C
DG304A/305A/306A/307A
4 Siliconix
S-52880—Rev. C, 28-Apr-97
Specificationsa
Conditions Unless
Otherwise Specified
V+
=
15 V, V
–=–
15 V
-55 to 125_C
-25 to 85_C
0to70_C
Parameter Symbol
V+
=
15
V
,
V–
=
–15
V
VIN = 3.5 V or 11 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 W
Source Off Leakage Current IS(off) VS = 14 V
VD = 14 V Room
Full 0.1 –1
–100 1
100 –5
–100 5
100
Drain Off Leakage Current ID(off) VS = 14 V
VD = 14 V Room
Full 0.1 –1
–100 1
100 –5
–100 5
100 nA
Drain On Leakage Current ID(on) VD = VS = 14 V Room
Full 0.1 –2
–200 2
200 –5
–200 5
200
Digital Control
Input Current
ihI Vl Hi h
IINH
VIN = 5 V Room
Full –0.001 –1
–1 –1
with Input Voltage High
IINH
VIN = 15 V Room
Full 0.001 1
11mA
Input Current
with Input Voltage Low IINL VIN = 0 V Room
Full –0.001 –1
–1 –1
Dynamic Characteristics
Turn-On Time tON
See Figure 2
Room 110 250
Turn-Off Time tOFF
See
Figure
2
Room 70 150 ns
Break-Before-Make Time tOPEN DG305A/307A ONLY
See Figure 3 Room 50
ns
Charge Injection QCL = 1 nF, Rgen = 0
Vgen = 0 V, See Figure 4 Room 30 pC
Source-Off Capacitance CS(off)
f 1 MH V 0V
Room 14
Drain-Off Capacitance CD(off)
f
=
1
MH
z,
V
S =
0
V
V
S
, VD = 0 V Room 14
Channel-On Capacitance CD(on)
S,D
Room 40 pF
Input Capacitance
CIN
f=1MHz
VIN = 0 V Room 6
Input
Capacitance
C
IN
f
=
1
MHz
VIN = 15 V Room 7
Off-Isolation OIRR VIN = 0 V, RL = 1 kWRoom 62
dB
Crosstalk (Channel-to-Channel) XTALK VS = 1 Vrms, f = 500 kHz Room 74
dB
Power Supplies
Positive Supply Current I+ VIN = 15 V or 0 V
(All I )
Room
Full 0.001 10
100 100
mA
Negative Supply Current I– (All Inputs) Room
Full –0.001 –10
–100 –100
mA
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.
DG304A/305A/306A/307A
Siliconix
S-52880—Rev. C, 28-Apr-97 5
Typical Characteristics
rDS(on) – Drain-Source On-Resistance ( )
rDS(on) vs. VD and Power Supply rDS(on) vs. VD and + Power Supply Voltage
100
–20 –15 –10 –5 0 5 10 15 20
80
60
40
20
0
100
0 5 10 15 20
80
60
40
20
0
Input Switching Threshold vs. V+ and V–
Supply Voltages
V+, V– Positive & Negative Supplies (V)
V+ – Positive Supply Voltage (V)
Switching Time vs. Positive Supply Voltage
(V)
T
V
Leakage Currents vs. Analog Voltage
tON (ns), tOFF
tON (ns), tOFF
Switching Time vs. Negative Supply Voltage
V– – Negative Supply Voltage (V)
10
–15 0 15
0
–10
–20
–30
–40
10
0
9
8
7
6
5
4
3
2
1
240
0 5 10 15
200
160
120
80
40
240
0 –5 –10 –15
200
160
120
80
40
tOFF
tON
0510 15 20
(pA)I , I
SD
–12 –9 –6 –3 3 6 9 12
rDS(on) – Drain-Source On-Resistance ( )
5 V
20 V
7.5 V
10 V
15 V
+20 V
+7.5 V
+10 V
ID(on)
ID(off) or IS(off)
TA = 25C
TA = 25C
V– = 0 V
TA = 25C
V– = –15 V
TA = 25_C
VINH = 15 V
VINL = 0 V
V+ = 15 V
TA = 25_C
VINH = 15 V
VINL = 0 V
tOFF
tON
VD or VS – Drain or Source Voltage (V)
VD – Drain Voltage (V) VD – Drain Voltage (V)
+15 V
DG304A/305A/306A/307A
6 Siliconix
S-52880—Rev. C, 28-Apr-97
Typical Characteristics (Cont’d)
Supply Currents vs. Toggle Frequency
f – Frequency (Hz)
1 k 10 k 100 k 1 M
I+, I– (mA)
8
6
4
2
0
V+ = 15 V
RL =
CL = 0
VS = Open
Schematic Diagram (Typical Channel)
Figure 1.
Level
Shift/
Drive
VIN
S
V+
GND
V–
D
V–
V+
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
15 V RL
300
VO
–15 V
GND
+15 V
50%
90%
0 V
0 V
10%
Logic
Input
Switch
Output
VS
VINH
tON tOFF
Logic “1” = Switch On
DG304A/305A/306A/307A
Siliconix
S-52880—Rev. C, 28-Apr-97 7
Test Circuits (Cont’d)
Figure 3. Break-Before-Make SPDT (DG305A, DG307A)
Figure 4. Charge Injection
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
ON OFF ON
INX
VO
DVO
VO1
S2
S1
D2
RL2
300 WCL2
33 pF
V+
VO2
VS2 =3V
IN
VS1 =3V
RL1
300 WCL1
33 pF
CL (includes fixture and stray capacitance)
V-
D1
-15 V
GND
+15 V
CL
1 nF
3 V V–
–15 V
VO
GND
V+
RgS
Vg
D
IN
+15 V
Q = DVO x CL
Application Hintsa
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
11/3.5
11/3.5
11/3.5
–15 to 15
–20 to 20
0 to 15
Notes:
a. Application Hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing.
DG304A/305A/306A/307A
8 Siliconix
S-52880—Rev. C, 28-Apr-97
Applications
Figure 5. Low Power Binary to 10n Gain Low Frequency Amplifier
Figure 6. Low Power Non-Inverting Amplifier with Digitally Selectable Inputs and Gain
+15 V
+15 V –15 V
–15 V
Binary
Input Gain
11
10
01
00
1
10
100
1000
DG304A
10 k
10 k
10 k
10 k
100 k1 M
VIN
VOUT
A1A0
–15 V
+15 V
+15 V
+15 V –15 V
10x
–15 V
GND
DG307A
1x
CMOS Logic
Input Select
High = VIN1
CMOS Logic
Gain Select
High = 10x
VIN1
VIN2
180 k20 k
VOUT
