CD4052BM datasheet(20/48 Pages) TI

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CD4556

CD4051B

INH

CD4051B

INH

CD4051B

INH

COMMON

Figure 7-17. 24-to-1 MUX Addressing

8 Detailed Description

8.1 Overview

The CD4051B, CD4052B, and CD4053B analog multiplexers are digitally-controlled analog switches having low

ON impedance and very low OFF leakage current. Control of analog signals up to 20 VP-P can be achieved by

digital signal amplitudes of 4.5 V to 20 V (if VDD – VSS = 3 V, a VDD – VEE of up to 13 V can be controlled; for

VDD – VEE level differences above 13 V, a VDD – VSS of at least 4.5 V is required). For example, if VDD = +4.5

V, VSS = 0 V, and VEE = –13.5 V, analog signals from –13.5 V to +4.5 V can be controlled by digital inputs of 0

V to 5 V. These multiplexer circuits dissipate extremely low quiescent power over the full VDD – VSS and VDD –

VEE supply-voltage ranges, independent of the logic state of the control signals. When a logic 1 is present at the

inhibit input terminal, all channels are off.

The CD4051B device is a single 8-channel multiplexer having three binary control inputs, A, B, and C, and an

inhibit input. The three binary signals select 1 of 8 channels to be turned on, and connect one of the 8 inputs to

the output.

The CD4052B device is a differential 4-channel multiplexer having two binary control inputs, A and B, and an

inhibit input. The two binary input signals select 1 of 4 pairs of channels to be turned on and connect the analog

inputs to the outputs.

The CD4053B device is a triple 2-channel multiplexer having three separate digital control inputs, A, B, and C,

and an inhibit input. Each control input selects one of a pair of channels which are connected in a single-pole,

double-throw configuration.

When these devices are used as demultiplexers, the CHANNEL IN/OUT terminals are the outputs and the

COMMON OUT/IN terminals are the inputs.

CD4051B, CD4052B, CD4053B

SCHS047K – AUGUST 1998 – REVISED MARCH 2023

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