CD4051B_15 Datasheet, PDF (18/38 Pages) Texas Instruments – CMOS Single 8-Channel Analog Multiplexer/Demultiplexer

CD4051B, CD4052B, CD4053B
SCHS047H – AUGUST 1998 – REVISED APRIL 2015
www.ti.com
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
INHIBIT
CD4051B
0
0
0
0
0
0
0
0
1
CD4052B
0
0
0
0
1
CD4053B
0
0
0
0
0
0
1
(1) X = Don't Care
Table 1. Truth Table⁽¹⁾
INPUT STATES
C
B
A
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
X
X
X
0
0
0
1
1
0
1
1
X
X
X
X
0
X
X
1
X
0
X
X
1
X
0
X
X
1
X
X
X
X
X
ON CHANNEL(S)
0
1
2
3
4
5
6
7
None
0x, 0y
1x, 1y
2x, 2y
3x, 3y
None
ax
ay
bx
by
cx
cy
None
18
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