DG201A/202
Monolithic Quad SPST CMOS Analog Switches
Features
D
D
D
D
D
"15-V
Input Range
Low Off Leakage—I
D(on)
: 0.1 nA
Low On-Resistance—r
DS(on)
: 115
W
44-V Maximum Supply Ratings
TTL and CMOS Compatible
Benefits
D
Wide Input Range
D
Low Distortion Switching
D
Can Be Driven from Comparators or
Op Amps Without Limiting Resistors
Applications
D
D
D
D
Disk Drives
Radar Systems
Communications Systems
Sample-and-Hold
Description
The DG201A and DG202 are quad SPST analog switches
designed to provide accurate switching over a wide range
of input signals. When combining a low on-resistance and
a wide signal range ("15 V) with low charge-transfer
these devices are well suited for industrial and military
applications.
Built on Siliconix’ high voltage metal gate process to
achieve optimum switch performance, each switch
conducts equally well in both directions when on. When
off these switches will block up to 30 V peak-to-peak and
have a 44-V absolute maximum power supply rating.
These two devices are differentiated by the type of switch
actions (See Truth Table).
The DG201B/DG202B upgrades are recommended for
new designs.
Functional Block Diagram and Pin Configuration
DG201A
IN
1
D
1
S
1
V–
GND
S
4
D
4
IN
4
Dual-In-Line and SOIC
1
2
3
4
5
6
7
8
Top View
16
15
14
13
12
11
10
9
IN
2
D
2
S
2
V+
NC
S
3
D
3
IN
3
NC
GND
S
4
DG201A
Key
S
1
V–
4
5
6
7
8
LCC
D
1
IN
1
NC IN
2
D
2
3
2
1 20 19
18
17
16
15
14
9
10 11 12 13
S
2
V+
NC
NC
S
3
D
4
IN
4
NC IN
3
D
3
Top View
Truth Table
Logic
0
1
DG201A
ON
OFF
Logic “0”
v
0.8 V
Logic “1”
w
2.4 V
DG202
OFF
ON
Updates to this data sheet may be obtained via facsimile by calling Siliconix FaxBack, 1-408-970-5600. Please request FaxBack document #70036.
Siliconix
S-52880—Rev. E, 28-Apr-97
1
DG201A/202
Ordering Information
Temp Range
0 to 70_C
–25 to 85_C
–40 to 85_C
Package
DG201ACJ
16-Pin
16 Pin Plastic DIP
16-Pin CerDIP
16-Pin Narrow
SOIC
DG202CJ
DG201ABK
DG201ADY
DG201AAK
Part Number
DG201AAK/883, JM38510/12302BEA
–55 to 125_C
16-Pin CerDIP
7705301EA
DG202AK
DG202AK/883
JM38510/12302BEC
–55 to 125_C
16-Pin
16 Pin Sidebraze
LCC-20
7705301EC
77053012A
Absolute Maximum Ratings
Voltages Referenced to V–
V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 V
GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 V
Digital Inputs
a
V
S
, V
D
. . . . . . . . . . . . . . . . . . (V–) –2 V to (V+) +2 V
or 20 mA, whichever occurs first
Current, Any Terminal Except S or D . . . . . . . . . . . . . . . . . . . . 30 mA
Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Peak Current, S or D
(Pulsed at 1 ms, 10% duty cycle max) . . . . . . . . . . . . . . . . . . . . 70 mA
Storage Temperature
(K, Z Suffix) . . . . . . . . . . . –65 to 150_C
(J, Y Suffix) . . . . . . . . . . . –65 to 125_C
Power Dissipation (Package)b
16-Pin Plastic DIP
c
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16-Pin SOIC
d
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16-Pin CerDIP and Sidebraze
e
. . . . . . . . . . . . . . . . . . . . . . . .
LCC-20
f
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
470 mW
640 mW
900 mW
750 mW
Notes:
a. Signals on S
X
, D
X
, or IN
X
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 7.6 mW/_C above 75_C
e. Derate 12 mW/_C above 75_C
f. Derate 10 mW/_C above 75_C
Schematic Diagram (Typical Channel)
V+
8888
S
V–
–
+
V+
GND
IN
X
V–
D
Figure 1.
2
Siliconix
S-52880—Rev. E, 28-Apr-97
DG201A/202
Specifications
a
Test Conditions
Unless Otherwise Specified
Parameter
Analog Switch
Analog Signal Range
e
Drain-Source On Resistance
Drain Source On-Resistance
Source Off
Leakage Current
Drain Off Leakage Current
Drain On Leakage Current
V
ANALOG
r
DS( )
DS(on)
I
S(off)
I
D(off)
I
D(on)
V
D
=
"10
V I
S
= 1 mA
V,
V
S
=
"14
V, V
D
=
#14
V
V
D
=
"14
V, V
S
=
#14
V
V
S
= V
D
=
"14
V
Full
Room
Full
Room
Full
Room
Full
Room
Full
"0.02
"0.02
"0.15
–1
–100
–1
–100
–1
–200
115
–15
15
175
250
1
100
1
100
1
200
–5
–100
–5
–100
–5
–200
–15
15
175
250
5
100
5
100
5
200
nA
V
W
A Suffix
–55 to 125_C
B, C, D
Suffix
Unit
Symbol
V = 15 V, V– = –15V
VV
15V
V+
V
IN
= 2.4 V, 0.8 V
f
Temp
b
Typ
c
Min
d
Max
d
Min
d
Max
d
Digital Control
Input Current with
Input V l
Voltage High
I
Hi h
V
IN
= 2.4 V
I
INH
V
IN
= 15 V
Input Current with
Input Voltage Low
I
INL
V
IN
= 0 V
Room
Full
Room
Full
Room
Full
–0.0004
0.003
–0.0004
–1
–10
–1
–1
1
10
–1
–10
–1
–10
1
10
mA
Dynamic Characteristics
Turn-On Time
Turn-Off Time
Charge Injection
Source-Off Capacitance
Drain-Off Capacitance
Channel On Capacitance
Off Isolation
Channel-to-Channel
Crosstalk
t
ON
t
OFF
Q
C
S(off)
C
D(off)
C
D(on)
+
C
S(on)
OIRR
X
TALK
See Switching Time
Test Circuit
T Ci i
C
L
= 1000 pF, V
g
= 0 V
R
g
= 0
W
V
S
= 0 V V
IN
= 5 V f = 1 MHz
V,
V,
V
D
= V
S
= 0 V, V
IN
= 0 V
f = 1 MHz
V
IN
= 5 V R
L
= 75
W
V,
V
S
= 2 V, f = 100 kHz
Room
Room
Room
Room
Room
Room
Room
Room
480
370
20
5
5
16
70
90
dB
pF
600
450
600
450
pC
ns
Power Supply
Positive Supply Current
Negative Supply Current
I+
I–
All Channels On or Off
Room
Room
0.9
–0.3
–1
2
–1
2
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. V
IN
= input voltage to perform proper function.
Siliconix
S-52880—Rev. E, 28-Apr-97
3
DG201A/202
Typical Characteristics
Charge Injection vs. Analog Voltage
70
60
50
40
r
DS(on)
(
W
)
Q (pC)
30
20
10
0
–10
–20
50
–30
–15
–10
0
5
10
V
ANALOG
– Analog Voltage (V)
–5
15
–25
–15
–5
5
15
V
D
– Drain Voltage (V)
25
Q
S
100
Q
D
200
"8
V
150
"10
V
"12
V
"15
V
V+ = 15 V, V– = –15 V
T
A
= 25_C
250
"5
V
300
T
A
= 25_C
r
DS(on)
vs. V
D
and Power Supply Voltage
180
160
140
r
DS(on)
(
W
)
120
100
80
r
DS(on)
vs. V
D
and Temperature
V+ = 15 V, V– = –15 V
100 nA
Leakage vs. Temperature
V+ = 15 V, V– = –15 V
V
D
=
"14
V
10 nA
1 nA
I
S
, I
D
125_C
85_C
25_C
10 pA
0_C
–40_C
–55_C
1 pA
0.1 pA
–55 –35
100 pA
I
S(off)
, I
D(off)
, I
D(on)
60
–15
–10
–5
0
5
V
D
– Drain Voltage (V)
10
15
–15
5
25 45
65
Temperature (_C)
85 105 125
Supply Current vs. Switching Frequency
6
4
2
I+, I– (mA)
0
I–
–2
–6.0
–4
–6
1k
2.0
0.0
Insertion Loss vs. Frequency
V+ = 15 V
V– = –15 V
LOSS (dB)
I+
1 MW
V+ = 15 V
V– = –15 V
Ref. 0.0 dBm
See Figures 3 and 4
R
L
= 50
W
1 kW
–2.0
–4.0
10 k
100 k
f – Frequency (Hz)
1M
1k
10 k
100 k
1M
f – Frequency (Hz)
10 M
4
Siliconix
S-52880—Rev. E, 28-Apr-97
DG201A/202
Typical Characteristics (Cont’d)
Crosstalk and Off Isolation vs. Frequency
0
–20
–40
X
TALK
, ISO (dB)
–60
Off Isolation
–80
–100
–120
See Figures 3 and 4
–140
–160
10 k
Crosstalk
V+ = 15 V
V– = –15 V
Ref. 0 dBm
R
L
= 50
W
I
S
, I
D
(pA)
10
8
6
4
2
0
–2
–4
–6
–8
100 k
1M
f – Frequency (Hz)
10 M
–10
–20
I
D(on)
V+ = 15 V
V– = –15 V
T
A
= 25_C
For I
D(off)
, V
S
= –V
D
For I
S(off)
, V
D
= – V
S
–15 –10 –5
0
5
10
15
V
D
or V
S
– Drain or Source Voltage (V)
20
I
S(off)
, I
D(off)
Leakage Current vs. Analog Voltage
Switching Time vs. Temperature
1000
900
800
t
ON
, t
OFF
(ns)
700
600
t
ON
500
400
300
200
100
–55 –35 –15
5
25 45 65
Temperature (_C)
85
105 125
t
OFF
V+ = 15 V
V– = –15 V
V
S
= 2 V
t
ON
, t
OFF
(ns)
1000
900
800
700
600
Switching Time vs. Power Supply Voltage
t
ON
500
400
300
200
100
10
12
14
16
18
20
V+ – Positive Supply (V)
22
t
OFF
Siliconix
S-52880—Rev. E, 28-Apr-97
5
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