TECHNICAL DATA
IW4051B
Analog Multiplexer Demultiplexer
High-Performance Silicon-Gate CMOS
The IW4051B analog multiplexer/demultiplexer is digitally controlled
analog switches having low ON impedance and very low OFF leakage
current. Control of analog signals up to 20V peak-to-peak can be
achieved by digital signal amplitudes of 4.5 to 20V (if V
CC
- GND = 3V,
a V
CC
- V
EE
of up to 13 V can be controlled; for V
CC
-V
EE
level differences
above 13V a V
CC
- GND of at least 4.5V is required).
These multiplexer circuits dissipate extremely low quiescent power
over the full V
CC
-GND and V
CC
- V
EE
supply-voltage ranges,
independent of the logic state of the control signals. When a logic “1”is
present at the ENABLE input terminal all channels are off.
The IW4051B is a single 8-channel multiplexer having three binary
control inputs, A, B and C, and an ENABLE input. The three binary
signals select 1 of 8 channels to be turned on, and connect one of the 8
inputs to the output.
•
Operating Voltage Range: 3.0 to 18 V
•
Maximum input current of 1
μA
at 18 V over full package-temperature
range; 100 nA at 18 V and 25°C
•
Noise margin (over full package temperature range):
1.0 V min @ 5.0 V supply
2.0 V min @ 10.0 V supply
2.5 V min @ 15.0 V supply
N SUFFIX
PLASTIC
16
1
16
1
D SUFFIX
SOIC
ORDERING INFORMATION
IW4051BN
Plastic DIP
IW4051BD
SOIC
T
A
= -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
Single-Pole, 8-Position Plus Common Off
FUNCTION TABLE
X0
X1
X2
X3
ANALOG
INPUTS/OUTPUTS
X4
13
14
15
12
1
5
MULTIPLEXER/
DEMULTIPLEXER
3
X COMMON
OUTPUT/INPUT
Control Inputs
Enable
C
L
L
L
L
L
L
PIN 16 =V
CC
PIN 7 = V
EE
PIN 8 = GND
L
L
L
L
L
L
H
H
H
H
Select
B
L
L
H
H
L
L
H
H
X
A
L
H
L
H
L
H
L
H
X
ON
Channels
X0
X1
X2
X3
X4
X5
X6
X7
None
X5
X6 2
X7
4
A
CHANNEL-SELECT
B
INPUTS
C
ENABLE
11
10
9
6
H
X
H = high level
L = low level
X = don’t care
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
