TTL Compatible CMOS Analog Switches
Table 1. Typical Single Supply Parameters
V+ SUPPLY VOLTAGE (V- = 0V)
PARAMETER
+10V
ꢁ90ns
40ns
+15V
ꢁ50ns
40ns
+20V
ꢁꢁ0ns
40ns
+30V
70ns
t
ON
Switching Time (R = ꢁkΩ)
L
t
40ns
OFF
ꢀ
= +ꢁꢀ
7ꢁΩ
5ꢁΩ
42Ω
3ꢁΩ
SIGNAL
On-Resistance
ꢀ
= ꢀ+ / 2
77Ω
54Ω
43Ω
30Ω
SIGNAL
ꢀ
= ꢀ+
±4Ω
63Ω
54Ω
43Ω
SIGNAL
Input Logic Levels
0.±ꢀ, 4.0ꢀ
0.±ꢀ, 4.0ꢀ
0.±ꢀ, 4.0ꢀ
0.±ꢀ, 4.5ꢀ
Table 2. Charge Injection ( 15V Supplies)
Applications Information
All DG300 family switches will operate with ±5ꢀ to ±ꢁ5ꢀ
power supplies. They can also be used with single-ended
power supplies ranging from +ꢁ0ꢀ to +30ꢀ where the ꢀ-
terminal is connected to ground. In either case, analog
signals ranging from ꢀ+ to ꢀ- can be switched.
ANALOG INPUT (V)
INJECTED Q (pC)
+ꢁ0
+5
0
4
±
ꢁ2
±
-5
The on-resistance variation with analog signal and supply
-ꢁ0
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 ꢁ.
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 ꢁ0%. In addition, Table ꢁ outlines some typical
parameters for single-supply operation.
Chip Topography
DG300
DG300A
N.C.
Dꢁ
N.C.
Sꢁ
DG301
DG301A
N.C.
Dꢁ
Sꢁ
N.C.
INꢁ
N.C.
GND
ꢀ-
N.C.
N.C.
N.C.
S2
DG302/DG303
DG302A/DG303A
b
a
n
m
DIE PAD
a
b
c
d
e
f
g
h
i
S3
D3
Dꢁ
l
Sꢁ
INꢁ
INꢁ
N.C.
GND
ꢀ-
IN2
S2
c
k
j
N.C.
GND
ꢀ-
IN2
S2
0.106"
2.69mm
d
j
k
l
N.C.
D2
D2
D4
m
n
N.C.
ꢀ+
D2
ꢀ+
S4
ꢀ+
e
f
g
h
i
0.108"
2.74mm
6
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