TEMIC DG302A Cmos analog switch Datasheet

DG300A/301A/302A/303A
CMOS Analog Switches
Features
Benefits
Applications
Full Rail-to-Rail Analog Signal
Range
Low Signal Error
Low Power Dissipation
Low Level Switching Circuits
Programmable Gain Amplifiers
Portable and Battery Powered
Systems
Analog Signal Range: 15 V
Fast Switching—tON: 150 ns
Low On-Resistance—rDS(on): 30 Single Supply Operation
Latch-up Proof
CMOS Compatible
Description
The DG300A-DG303A family of 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.
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.
Designed on the 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.
Functional Block Diagram and Pin Configuration
DG300A
DG300A
Dual-In-Line
Metal Can
NC
1
14
V+
D1
2
13
D2
NC
3
12
NC
S1
4
11
NC
5
10
IN1
GND
6
7
9
Top View
8
S2
V+ (Substrate and Case)
D1
1
S1
D2
10
Truth Table
9
2
8
S2
NC
IN2
IN1
3
Top View
4
V–
NC
7
6
5
V–
IN2
Logic
Switch
0
OFF
1
ON
08V
Logic “0”
0 0.8
1 4V
Logic “1”
GND
Updates to this data sheet may be obtained via facsimile by calling Siliconix FaxBack, 1-408-970-5600. Please request FaxBack document #70044.
Siliconix
S-52880—Rev. C, 28-Apr-97
1
DG300A/301A/302A/303A
Functional Block Diagram and Pin Configuration (Cont’d)
DG301A
DG301A
Dual-In-Line
Metal Can
V+ (Substrate and Case)
NC
1
14
V+
D1
2
13
D2
NC
3
12 NC
S1
4
11
S2
NC
5
10
NC
IN
6
9
NC
GND
7
8
V–
D1
D2
10
1
S1
2
IN
8
7
3
Logic
SW1
0
OFF
ON
1
ON
OFF
S2
5
SW2
Logic “0” 0.8 V
Logic “1”
1 4V
NC
6
4
NC
Truth Table
9
V–
GND
Top View
Top View
DG302A
Dual-In-Line
NC
1
14
V+
S3
2
13
S4
D3
3
12
D4
0
D1
4
11
D2
1
S1
5
10
S2
IN1
6
9
IN2
GND
7
8
V–
OFF
ON
Logic “0” 0.8 V
Logic “1” 4 V
Top View
DG303A
Dual-In-Line
NC
1
14
V+
S3
2
13
S4
Logic
SW1, SW2
SW3, SW4
D3
3
12
D4
0
OFF
ON
D1
4
11
D2
1
ON
OFF
S1
5
10
S2
IN1
6
9
IN2
GND
7
8
V–
Truth Table
Logic “0” 0.8 V
Logic “1” 4 V
Top View
2
Siliconix
S-52880—Rev. C, 28-Apr-97
DG300A/301A/302A/303A
Ordering Information
Temp Range
Package
Part Number
DG300A
0 to 70_C
–25 to 85_C
14-Pin Plastic DIP
DG300ACJ
14-Pin CerDIP
DG300ABK
10-Pin Metal Can
DG300ABA
DG300AAK
14-Pin CerDIP
DG300AAK/883
JM38510/11601BCA
–55 to 125_C
14-Pin Sidebraze
JM38510/11601BCC
DG300AAA/883
10-Pin Metal Can
JM38510/11601BIA
DG301A
0 to 70_C
–25 to 85_C
14-Pin Plastic DIP
DG301ACJ
14-Pin CerDIP
DG301ABK
10-Pin Metal Can
DG301ABA
DG301AAK/883
14-Pin CerDIP
14-Pin Sidebraze
–55 to 125_C
JM38510/11602BCA
JM38510/11602BCC
DG301AAA
10-Pin Metal Can
DG301AAA/883
JM38510/11602BIA
DG302A
0 to 70_C
14-Pin Plastic DIP
DG302ACJ
DG302AAK
14-Pin CerDIP
–55 to 125_C
DG302AAK/883
JM38510/11603BCA
14-Pin Sidebraze
JM38510/11603BCC
0 to 70_C
14-Pin Plastic DIP
DG303ACJ
–25 to 85_C
14-Pin CerDIP
DG303ABK
–45 to 85_C
14-SOIC
DG303ADY
DG303A
DG303AAK
14-Pin CerDIP
–55 to 125_C
JM38510/11604BCA
14-Pin Sidebraze
Siliconix
S-52880—Rev. C, 28-Apr-97
DG303AAK/883
JM38510/11604BCC
3
DG300A/301A/302A/303A
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
(A & B Suffix) . . . . . . . . . . . . –65 to 150_C
(C Suffix) . . . . . . . . . . . . . . . . –65 to 125_C
Power Dissipationb
14-Pin Plastic DIPc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470 mW
14-Pin CerDIPd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 825 mW
10-Pin Metal Cane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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)
V+
S
V–
VIN
Level
Shift/
Drive
V+
GND
D
V–
Figure 1.
4
Siliconix
S-52880—Rev. C, 28-Apr-97
DG300A/301A/302A/303A
Specificationsa
Conditions Unless Otherwise Specified
Parameter
Symbol
V = 15 V,
V V–
V = –15
15 V
V+
VIN = 0.8 V or VIN = 4 Vf
A Suffix
B/C Suffix
–55 to 125_C
Tempb
Typc
Mind Maxd Mind Maxd
Unit
Analog Switch
Analog Signal Rangee
VANALOG
Full
–15
15
–15
V
50
75
W
Room
Full
30
Room
Hot
0.1
–1
–100
1
100
–5
–100
5
100
Room
Hot
0.1
–1
–100
1
100
–5
–100
5
100
VD = VS = 14 V
Room
Hot
0.1
–1
–100
1
100
–5
–100
5
100
VIN = 5 V
Room
Full
–0.001
–1
–1
VIN = 15 V
Room
Full
0.001
VIN = 0 V
Room
Full
–0.001
Room
150
300
Room
130
250
tOPEN
DG301A/303A Only
Figure 3
Room
50
Q
CL = 1 nF, Rgen = 0 W
Vgen = 0 V, Figure 4
Room
8
Room
14
Room
14
Drain-Source On-Resistance
rDS(on)
Source Off Leakage Current
IS(off)
Drain Off Leakage Current
ID(off)
Drain On Leakage Current
ID(on)
VD = 10 V, IS = –10 mA
VS = 14 V
V, VD = 14 V
50
75
15
nA
Digital Control
Input
p Current with
I
Input
V
Voltage
l
Hi
High
h
IINH
Input Current with
Input Voltage Low
IINL
–1
1
1
–1
–1
1
mA
–1
Dynamic Characteristics
Turn-On Time
tON
Turn-Off Time
tOFF
Break-Before-Make Time
Charge Injection
Source-Off Capacitance
CS(off)
Drain-Off Capacitance
CD(off)
Channel-On Capacitance
CD(on)
Input Capacitance
Cin
Off-Isolation
OIRR
Crosstalk (Channel-to-Channel)
XTALK
See Figure 2
VS, VD = 0 V, f = 1 MHz
f = 1 MHz
Room
40
VIN = 0 V
Room
6
VIN = 15 V
Room
7
Room
62
Room
74
Room
Full
0.23
Room
Full
–0.001
Room
Full
0.001
Room
Full
–0.001
VIN = 0 V,, RL = 1 kW
VS = 1 Vrms, f = 500 kHz
kH
ns
pC
pF
dB
Power Supplies
Positive Supply Current
I+
Negative Supply Current
I–
Positive Supply Current
I+
VIN = 4 V (One
(
Input)
p )
All Others
Oh =0V
0 8 V (All Inputs)
VIN = 0.8
Negative Supply Current
I–
0.5
1
–10
–100
1
–100
10
100
–10
–100
mA
100
mA
–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.
Siliconix
S-52880—Rev. C, 28-Apr-97
5
DG300A/301A/302A/303A
Typical Characteristics
70
5 V
8 V
50
10 V
12 V
30
15 V
20 V
10
rDS(on) – Drain-Source On-Resistance ( )
DS(on) – Drain-Source On-Resistance ( )
TA = 25C
–25
–15
–5
5
15
50
40
TA = 125_C
30
TA = 25_C
20
TA = –55_C
–15
–10
–5
0
5
10
15
VD – Drain Voltage (V)
rDS(on) vs. VD and Power Supply Voltage
Switching Time and Break-Before-Make Time
vs. Positive Supply Voltage
500
V– = 0 V
TA = 25C
100
7.5 V
V– = –15 V
TA = 25_C
VINH = 4 V
VINL = 0 V
400
80
10 V
60
300
tOFF
200
tON
15 V
40
20 V
tOPEN
100
DG301/303 Only
0
0
5
10
15
20
0
40
10
V+ – Positive Supply (V)
Charge Injection vs. Analog Voltage
Input Switching Threshold
vs. Positive Supply Voltage
5
4
VT (V)
3
20
2
10
1
–10
15
V– = –15 V
TA = 25_C
V+ = 15 V
V– = –15 V
CL = 1 nF
30
0
–15
5
VD – Drain Voltage (V)
50
Q (pC)
V+ = 15 V
V– = –15 V
VD – Drain Voltage (V)
20
–5
0
5
VS – Source Voltage (V)
6
rDS(on) vs. VD and Temperature
60
10
25
t ON , t OFF (ns)
rDS(on) – Drain-Source On-Resistance ( )
rDS(on) vs. VD and Power Supply
90
10
15
0
5
10
15
V+ – Positive Supply (V)
Siliconix
S-52880—Rev. C, 28-Apr-97
DG300A/301A/302A/303A
Typical Characteristics (Cont’d)
Supply Current vs. Temperature
–120
500
400
–100
300
Crosstalk
I+
–80
(dB)
I+, I– (mA)
Off Isolation and Crosstalk vs. Frequency
V+ = 15 V
V– = –15 V
VIN = 4 V (One Input)
(All Other = 0 V)
200
100
Off Isolation
–60
I–
–40
105 125
–20
10 k
0
–100
–55 –35 –15
5
25
45
65
85
V+ = +15 V
V– = –15 V
RL= 50 W
100 k
Temperature (_C)
1M
10 M
f – Frequency (Hz)
Supply Curents vs. Switching Frequency
Leakage vs. Temperature
100 nA
15
V+ = 15 V
V– = –15 V
10 nA
V+ = 15 V
V– = –15 V
VS, VD = 14 V
IS , I D
I+, I– (mA)
10
ID(on)
1 nA
5
100 pA
+I
ID(off) or IS(off)
–I
0
1k
10 k
100 k
10 pA
–55 –35
1M
–15
f – Frequency (Hz)
65
85
105 125
400
V+ = 15 V
V– = –15 V
350
300
300
250
250
Time (ns)
Time (ns)
45
Switching Time vs. Temperature
Switching Time vs. Power Supply Voltage
200
tON
150
tOFF
50
50
14
16
18
Supply Voltage (V)
Siliconix
S-52880—Rev. C, 28-Apr-97
20
tON
150
100
12
V+ = 15 V
V– = –15 V
VS = 3 V
200
100
0
10
25
Temperature (_C)
400
350
5
22
0
–55 –35 –15
tOFF
5
25
45
65
85
105 125
Temperature (_C)
7
DG300A/301A/302A/303A
Test Circuits
+15 V
Logic “1” = Switch On
V+
VS = 3 V
Logic
Input
D
S
VO
50%
0V
IN
GND
5V
RL
300 W
V–
VS
CL
33 pF
Switch
Output
90%
10%
0V
–15 V
tON
CL (includes fixture and stray capacitance)
VO = VS
tOFF
RL
RL + rDS(on)
Figure 2. Switching Time
+15 V
V+
VS1 = 3 V
VS2 = 3 V
Logic “1” = Switch On
Logic
Input
S1
D1
S2
D2
VO1
VO2
IN
GND
V–
Switch
Output
RL1
CL1
300 W 33 pF
RL2
CL2
300 W 33 pF
VINH
50%
0V
VS1
0V
VS2
50%
VO1
VO2
Switch
Output 0 V
50%
tBBM
–15 V
CL (includes fixture and stray capacitance)
Figure 3. Break-Before-Make SPDT (DG301A, DG303A)
+15 V
Rg
V+
S
IN
Vg
VO
CL
1 nF
3V
GND
DVO
D
V–
VO
INX
ON
OFF
ON
–15 V
Figure 4. Charge Injection
8
Siliconix
S-52880—Rev. C, 28-Apr-97
DG300A/301A/302A/303A
Application Hintsa
GND
Voltage
(V)
VIN
Logic Input
Voltage
VINH(min)/VINL(max)
(V)
VS or VD
Analog Voltage
Range
(V)
–15
0
4/0.8
–15 to 15
–20
0
4/0.8
–20 to 20
0
0
4/0.8
0 to 15
V+
Positive Supply
Voltage
(V)
V–
Negative Supply
Voltage
(V)
15
20
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
50 kW
10 kW
+15 V
5 kW
VOUT
10 mF
+15 V
DG301A
100 kW
+5 V
5 kW
TTL Input
10 kW
Figure 5. Single Supply Op Amp Switching
Siliconix
S-52880—Rev. C, 28-Apr-97
9
DG300A/301A/302A/303A
Applications (Cont’d)
+15 V
CMOS Logic
Input Select
High = Diff. IN B
+15 V
–15 V
Diff. IN A
–15 V
+
–
+15 V
R4
75 k
R2
R6
75 k
75 k
Diff. IN B
R1
16 k
DG302A
Ri1
1.5 k
VOUT
DG301A
GND
R2
75 k
CMOS Logic
Gain Select
High = AV = 101
+15 V
VOSNULL
R5
R7
75 k
67 k
50 k
Voltage gain of the instrumentation amplifier is:
AV = 1 +
2R2
R1
–15 V
(In the circuit shown, AV1 = 10.4, AV2 = 101)
Figure 6. Low Power Instrumentation Amplifier with Digitally Selectable Inputs and Gain
10
Siliconix
S-52880—Rev. C, 28-Apr-97
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