TTL Compatible CMOS Analog Switches
Table 1. Typical Single Supply Parameters
V+ SUPPLY VOLTAGE (V- = 0V)
PARAMETER
+10V
190ns
40ns
71
+15V
150ns
40ns
51
+20V
110ns
40ns
42
+30V
70ns
40ns
31
t
ON
Switching Time (R = 1k )
L
t
OFF
V
= +1V
SIGNAL
On-Resistance
V
= V+ / 2
77
54
43
30
SIGNAL
V
= V+
84
63
54
43
SIGNAL
Input Logic Levels
0.8V, 4.0V
0.8V, 4.0V
0.8V, 4.0V
0.8V, 4.5V
Table 2. Charge Injection ( 15V Supplies)
Applications Information
All DG300 family switches will operate with 5V to 15V
power supplies. They can also be used with single-ended
power supplies ranging from +10V to +30V where the V-
terminal is connected to ground. In either case, analog
signals ranging from V+ to V- can be switched.
ANALOG INPUT (V)
INJECTED Q (pC)
+10
+5
0
4
8
12
8
-5
The on-resistance variation with analog signal and supply
-10
5
voltage is shown in the Typical Operating Characteristics.
The temperature coefficient of R
is typically 0.5%/°C.
ON
The charge injection test circuit is shown in Figure 1.
Table 2 lists the typical injected charge for DG300 series
switches with various input voltages.
Typical on-resistance matching from channel to chan-
nel is 10%. In addition, Table 1 outlines some typical
parameters for single-supply operation.
Chip Topography
DG300
DG300A
N.C.
D1
D1
S1
IN1
V+
DG301
DG301A
N.C.
D1
S1
IN1
IN1
V+
GND
V-
GND
V-
DG302/DG303
DG302A/DG303A
b
a
n
m
DIE PAD
a
b
c
d
e
f
g
h
i
S3
D3
D1
S1
IN1
V+
GND
V-
l
c
k
j
0.106"
2.69mm
GND
V-
IN2
d
IN2
S2
j
S2
k
l
m
n
D2
D2
N.C.
V+
S2
D2
N.C.
V+
D2
D4
S4
e
f
g
h
i
V+
0.108"
2.74mm
6
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