Standard ICs
Quad 2-channel analog multiplexer /
demultiplexer
BU4551B / BU4551BF / BU4551BFV
The BU4551B, BU4551BF, and BU4551BFV are multiplexers / demultiplexers capable of selecting and combining
analog signals and digital signals with a configuration of 2 ch
脳
4.
Control signals are used to turn on the switch of the corresponding channel. In addition, even if the logical amplitude
(V
DD
-V
SS
) of the control signal is low, signals with a large amplitude (V
DD
-V
EE
) can be switched.
In addition, as each switch has a low ON resistance, it can be connected to a low impedance circuit.
鈥?/div>
Logic circuit diagram
V
DD
(16)
CONT (9)
Level
Converter
Control
鈥?/div>
Block diagram
W
1
X
0
1
2
W
1
X
0
X
1
X
(14)W
Y
(4) X
(5) Y
(13) Z
Y
0
6
5
4
X
Y
Y
0
V
EE
CONTROL
V
EE
7
10 Y
1
W
0
W
Z
Z
1
Z
0
Y
1
11 Z
0
13 Z
16 V
DD
15 W
0
V
SS
V
EE
W
1
X
0
X
1
Y
0
(8)
(7)
(1)
(2)
(3)
(6)
X
1
3
14 W
W
0
(15)
12 Z
1
Y
1
(10)
Z
0
(11)
Z
1
(12)
V
SS
8
9
CONTROL
鈥?/div>
Truth table
CONTROL
0
1
ON
W
0
X
0
Y
0
Z
0
W
1
X
1
Y
1
Z
1
1
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