Datasheet

17
CD4051B , CD4052B , CD4053B
www.ti.com SCHS047I –AUGUST 1998–REVISED SEPTEMBER 2017
Product Folder Links: CD4051B CD4052B CD4053B
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(1) X = Don't Care
8.3 Feature Description
The CD405xB line of multiplexers and demultiplexers can accept a wide range of digital and analog signal levels.
Digital signals range from 3 V to 20 V, and analog signals are accepted at levels ≤ 20 V. They have low ON
resistance, typically 125 Ω over 15 V
P-P
signal input range for V
DD
– V
EE
= 18 V. This allows for very little signal
loss through the switch. Matched switch characteristics are typically r
ON
= 5 Ω for V
DD
– V
EE
= 15 V.
The CD405xB devices also have high OFF resistance, which keeps from wasting power when the switch is in the
OFF position, with typical channel leakage of ±100 pA at V
DD
– V
EE
= 18 V. Very low quiescent power dissipation
under all digital-control input and supply conditions, typically 0.2 µW at V
DD
– V
SS
= V
DD
– V
EE
= 10 V keeps
power consumption total very low. All devices have been 100% tested for quiescent current at 20 V with
maximum input current of 1 µA at 18 V over the full package temperature range, and only 100 nA at 18 V and
25°C.
Logic-level conversion for digital addressing signals of 3 V to 20 V (V
DD
– V
SS
= 3 V to 20 V) to switch analog
signals to 20 V
P-P
(V
DD
– V
EE
= 20 V). Binary address decoding on chip makes channel selection easy. When
channels are changed, a break-before-make system eliminates channel overlap.
8.4 Device Functional Modes
Table 1. Truth Table
(1)
INPUT STATES
ON CHANNEL(S)
INHIBIT C B A
CD4051B
0 0 0 0 0
0 0 0 1 1
0 0 1 0 2
0 0 1 1 3
0 1 0 0 4
0 1 0 1 5
0 1 1 0 6
0 1 1 1 7
1 X X X None
CD4052B
0 0 0 0x, 0y
0 0 1 1x, 1y
0 1 0 2x, 2y
0 1 1 3x, 3y
1 X X None
CD4053B
0 X X 0 ax
0 X X 1 ay
0 X 0 X bx
0 X 1 X by
0 0 X X cx
0 1 X X cy
1 X X X None