19-0309; Rev 3; 11/07
TTL Compatible CMOS Analog Switches
General Description
Maxim’s DG300–DG303 and DG300A–DG303A CMOS
dual and quad analog switches combine low power
operation with fast switching times and superior DC and
AC switch characteristics. On-resistance is less than
50Ω and is essentially constant over the analog signal
range. Device specifications are ideal for battery-
powered circuitry.
These switches are available in a variety of formats as
outlined in the
Pin Configurations
section. The switch
control logic inputs are fully TTL and CMOS compati-
ble. Also featured are “break-before-make” switching
and low charge injection.
Maxim’s DG300-DG303 and DG300A-DG303A families
are electrically compatible and pin compatible with the
original manufacturer’s devices. All devices operate with
power supplies ranging from ±5V to ±18V. Single-sup-
ply operation is implemented by connecting V- to GND.
♦
Monolithic Low-Power CMOS
♦
Latchup Proof Construction
♦
Fully Compatible 2nd Source
♦
Low On-Resistance, <50Ω
♦
Fast Switching Time
♦
V+ to V- Analog Signal Range
♦
Single-Supply Capability
Features
DG300(A)/DG301(A)/DG302(A)/DG303(A)
Ordering Information
PART
DG300C/D
DG300CJ
DG300CWE
DG300CK
DG300BWE
DG300BK
DG300BA
DG300AK
DG300AA
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-25°C to +85°C
-25°C to +85°C
-25°C to +85°C
-55°C to +125°C
-55°C to +125°C
PIN-PACKAGE
Dice
14 Lead Plastic DIP
16 Lead Wide SO
14 Lead CERDIP
16 Lead Wide SO
14 Lead CERDIP
10 Lead Metal Can
14 Lead CERDIP
10 Lead Metal Can
Applications
Portable Instruments
Low-Power Sample/Holds
Power-Supply Switching
Programmable Gain Amplifiers
SPDT and DPDT Functions
Process Control and Telemetry
Ordering Information continued at end of data sheet.
Pin Configurations
DUAL SPST DG300/DG300A
V+ (SUBSTRATE AND CASE)
N.C. 1
D
1
10
D
2
D
1
2
1
9
N.C. 3
8 S
2
S
1
2
S
1
4
7 IN
2
N.C.
IN
1
3
5
4
6
IN
1
6
5
N.C.
V-
GND 7
GND
LOGIC SWITCH
0
OFF
1
ON
SPDT DG301/DG301A
V+ (SUBSTRATE AND CASE)
N.C. 1
D1
D2
10
D
1
2
1
9
S2 N.C. 3
S1 2
8
S
1
4
7 N.C. N.C.
IN 3
5
IN 6
N.C. 4 5 6 V-
GND
GND 7
LOGIC SWITCH 1 SWITCH 2
ON
OFF
0
OFF
ON
1
DUAL DPST DG302/DG302A
14 V+
13 D
2
12 N.C.
11 S
2
10 N.C.
9 IN
2
8 V-
N.C.
S
3
D
3
D
1
S
1
IN
1
GND
1
2
3
4
5
6
7
14 V+
13 S
4
12 D
4
11 D
2
10 S
2
9 IN
2
8 V-
LOGIC SWITCH
0
OFF
1
ON
DUAL SPDT DG303/DG303A
14 V+
13 D
2
12 N.C.
11 S
2
10 N.C.
9 N.C.
8 V-
N.C.
S
3
D
3
D
1
S
1
IN
1
GND
1
2
3
4
5
6
7
14 V+
13 S
4
12 D
4
11 D
2
10 S
2
9 IN
2
8 V-
LOGIC SWITCHES 1, 2 SWITCHES 3, 4
0
OFF
ON
1
ON
OFF
SWITCH STATES ARE FOR LOGIC "1" INPUTS (POSITIVE LOGIC).
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
TTL Compatible CMOS Analog Switches
DG300(A)/DG301(A)/DG302(A)/DG303(A)
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to V-
V+ (DG300–DG303)...............................................................36V
V+ (DG300A–DG303A) ..........................................................44V
GND .......................................................................................25V
Digital Inputs, V
S
, V
D
, (Note 1).......................-4V to (V+ + 4V) or
30mA, whichever occurs first
Current, Any Terminal Except S or D ..................................30mA
Continuous Current, S or D .................................................30mA
(pulsed at 1ms, 10% duty cycle max) ..........................100mA
Storage Temperature (A & B suffix)...................-65°C to +150°C
(C suffix) .........................-65°C to +125°C
Operating Temperature (A suffix) ......................-55°C to +125°C
(B suffix) ........................-25°C to +85°C
(C suffix) ...........................0°C to +70°C
Lead Temperature (soldering 10s) ..................................+300°C
Power Dissipation*
Cerdip (K) (derate 11mW/°C above +75°C) ....................825mW
Plastic DIP (J) (derate 6.5mW/°C above +25°C) .............470mW
Metal Can (A) (derate 6mW/°C above +75°C).................450mW
*Device
mounted with all leads soldered or welded to PC board.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation 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.
ELECTRICAL CHARACTERISTICS
(V+ = +15V, V- = -15V, GND = 0V, T
A
= +25°C, unless otherwise noted.)
DG300–DG303A
DG300A–DG303AA
TYP
MAX
MIN
(Note 2) (Note 3)
PARAMETER
Analog Signal Range
Drain-Source
ON-Resistance
Source OFF-
Leakage Current
Drain OFF-
Leakage Current
Drain ON-
Leakage Current
Input Current/
Voltage High
Input Current/
Voltage Low
Turn-ON Time
Turn-OFF Time
Break-Before-Make
Interval
Charge Injection
Source OFF-
Capacitance
Drain OFF-
Capacitance
Channel ON-
Capacitance
Input Capacitance
Off-Isolation (Note 4)
Crosstalk
(Channel-to-Channel)
SYMBOL
TEST CONDITIONS
DG300–DG303B/C
DG300A–DG303AB/C
UNITS
MIN
TYP
MAX
(Note 2) (Note 3)
INPUT
V
ANALOG
I
S
= 10mA, V
IN
= 0.8V or 4.0V
I
S
= -10mA, V
D
= 10V
R
DS(ON)
I
S
= -10mA, V
D
= -10V
V
S
= 14V, V
D
= -14V
I
S(OFF)
V
IN
= 0.8V
V
S
= -14V, V
D
= 14V
or
V
S
= -14V, V
D
= 14V
V
IN
= 0.8V
I
D(OFF)
V
S
= 14V, V
D
= -14V
V
D
= V
S
= 14V
I
D(ON)
V
D
= V
S
= -14V
V
IN
= 5.0V
I
INH
V
IN
= 15V
I
INL
t
ON
t
OFF
t
ON
- t
OFF
Q
C
S(OFF)
C
D(OFF)
C
D(ON)
+
C
S(ON)
C
IN
V
IN
= 0V
See Switching Time Test Circuit
See Break-Before-Make Time Test
Circuit, DG301(A)/DG303(A) only
C
L
= 10nF, R
GEN
= 0Ω, V
GEN
= 0V
V
S
= 0V
f = 1MHz,
V
IN
= 0.8V
V
D
= 0V
or
V
IN
= 4.0V
V
S
= VD = 0V
f = 1MHz
V
IN
= 0V
V
IN
= 15V
-15
30
30
0.1
-0.1
0.1
-0.1
0.1
-0.1
-0.001
0.001
-0.001
150
130
50
12
14
14
40
6
7
62
74
SWITCH
+15
50
50
1
1
-15
30
30
0.1
-0.1
0.1
-0.1
0.1
-0.1
-0.001
0.001
-0.001
150
130
50
12
14
14
40
6
7
62
74
+15
50
50
5
5
5
V
Ω
nA
nA
nA
µA
µA
-1
-1
-2
-1
-1
-5
-5
2
-5
-1
1
-1
300
250
1
300
250
ns
ns
ns
pC
pF
pF
pF
pF
dB
dB
DYNAMIC
V
IN
= 0V, R
L
= 1kΩ
V
S
= 1V
RMS
, f = 500kHz
2
_______________________________________________________________________________________
TTL Compatible CMOS Analog Switches
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +15V, V- = -15V, GND = 0V, T
A
= +25°C, unless otherwise noted.)
DG300–DG303A
DG300A–DG303AA
MIN
TYP
MAX
(Note 2) (Note 3)
DG300(A)/DG301(A)/DG302(A)/DG303(A)
PARAMETER
Positive Supply
Current
Negative Supply
Current
Positive Supply
Current
Negative Supply
Current
SYMBOL
TEST CONDITIONS
DG300–DG303B/C
DG300A–DG303AB/C
UNITS
MIN
TYP
MAX
(Note 2) (Note 3)
I+
I-
I+
SUPPLY
V
IN
= 4V (one input)
(all others = 0)
0.23
-10
-0.001
0.001
0.5
-10
10
-10
0.23
-0.001
0.001
-0.001
0.5
mA
µA
10
µA
µA
V
IN
= 0.8V (all inputs)
I-
-10
-0.001
ELECTRICAL CHARACTERISTICS (Over Temperature)
(V+ = +15V, V- = -15V, GND = 0V, T
A
= Over Temperature Range, unless otherwise noted.)
DG300–DG303A
DG300A–DG303AA
TYP
MAX
MIN
(Note 2) (Note 3)
PARAMETER
Analog Signal Range
Drain-Source
ON-Resistance
Source OFF-
Leakage Current
Drain OFF-
Leakage Current
Drain ON-
Leakage Current
Input Current/
Voltage High
Input Current/
Voltage Low
Positive Supply
Current
Negative Supply
Current
Positive Supply
Current
Negative Supply
Current
Turn-ON Time
Turn-OFF Time
SYMBOL
TEST CONDITIONS
DG300–DG303B/C
DG300A–DG303AB/C
UNITS
MIN
TYP
MAX
(Note 2) (Note 3)
INPUT
V
ANALOG
I
S
= -10mA, V
IN
= 0.8V or 4.0V
I
S
= -10mA, V
D
= 10V
R
DS(ON)
I
S
= -10mA, V
D
= -10V
V
S
= 14V, V
D
= -14V
I
S(OFF)
V
IN
= 0.8V
V
S
= -14V, V
D
= 14V
or
V
S
= -14V, V
D
= 14V
V
IN
= 0.8V
I
D(OFF)
V
S
= 14V, V
D
= -14V
V
D
= V
S
= 14V
I
D(ON)
V
D
= V
S
= -14V
V
IN
= 5.0V
I
INH
V
IN
= 15V
I
INL
I+
I-
I+
V
IN
= 0.8V (all inputs)
I-
t
ON
See Switching Time Test Circuit
t
OFF
V
IN
= 0V
V
IN
= 4V (one input)
(all others = 0)
-15
SWITCH
+15
75
75
100
100
-15
+15
75
75
100
100
V
Ω
nA
nA
nA
µA
µA
-100
-100
200
-200
-1
1
-1
1
-100
100
-100
500
450
-100
-100
200
-200
-10
10
-10
1
-200
200
-200
mA
mA
µA
µA
ns
ns
DYNAMIC
SUPPLY
_______________________________________________________________________________________
3
TTL Compatible CMOS Analog Switches
DG300(A)/DG301(A)/DG302(A)/DG303(A)
ELECTRICAL CHARACTERISTICS (Over Temperature) (continued)
(V+ = +15V, V- = -15V, GND = 0V, T
A
= Over Temperature Range, unless otherwise noted.)
Note 1:
Signals on S
X
, D
X
, or IN
X
exceeding V+ or V- are clamped by internal diodes. Limit diode forward current to maximum cur-
rent ratings.
Note 2:
The algebraic convention whereby the most negative value is a minimum, and the most positive value is a maximum is used
in this data sheet.
Note 3:
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
Note 4:
OFF-isolation = 20 log V
S
, V
S
= input to OFF switch, V
D
= output.
V
D
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
4
_______________________________________________________________________________________
TTL Compatible CMOS Analog Switches
Test Circuits
ΔV
O
DG300(A)/DG301(A)/DG302(A)/DG303(A)
R
GEN
S
X
D
X
C
L
10nF
IN
X
V
O
V
O
V
GEN
IN
X
+4V
ON
OFF
0V
ON
ΔV
O
=
Δ
MEASURED VOLTAGE ERROR DUE TO CHARGE INJECTION
THE ERROR VOLTAGE IN COULOMBS IS
ΔQ
= C
L
x
ΔV
O
.
Figure 1. Charge Injection Test Circuit
LOGIC "1" = SWITCH ON
LOGIC
INPUT
0V
V
S1
SWITCH
OUTPUT
0V
V
S2
V
O2
SWITCH
OUTPUT
50%
0V
t
BBM
V
IHN
50%
+4V
S
1
V
S1
= 3V
S
2
V
S2
= 3V
50%
V
O1
LOGIC
INPUT
GND
V-
-15V
IN
R
L2
300Ω
R
L1
300Ω
C
L2
33pF
C
L1
33pF
D
2
V
O2
+15V
V+
D
1
SWITCH
OUTPUT
V
O1
Figure 2. Break-Before-Make Time Test Circuit SPDT (DG301(A), DG303(A)
LOGIC "1" = SWITCH ON
LOGIC
INPUT
t
R
< 20ns
t
F
< 20ns
V
IHN
50%
0V
+4V
S
V
S
= 3V
IN
V
S
SWITCH
OUTPUT
90%
10%
0V
t
ON
t
OFF
LOGIC
INPUT
GND
V-
-15V
R
L
300Ω
C
L
33pF
0
+15V
V+
SWITCH
OUTPUT
V
O
Figure 3. Switching Time Test Circuit
_______________________________________________________________________________________
5
Sensor
京公网安备 11010802033920号
EEWORLD
