CD4053 — Triple 2-Channel Analog Multiplexer / Demultiplexer

Overview

The CD4053 (CD4053B / HEF4053B) is a triple 2-channel analog multiplexer and demultiplexer IC manufactured by Texas Instruments, ON Semiconductor, and Renesas. It contains three independent single-pole double-throw (SPDT) digitally-controlled analog switches (Channel A, Channel B, and Channel C).

Operating over a wide supply range of 3.0V to 18.0V DC (with dual-rail AC audio capability down to $V_{EE} = -9.0\text{V}$ ), the CD4053 is widely used for stereo audio channel switching, sensor signal routing, programmable gain amplifier selection, and A/B signal switching in DIY synths and audio mixers.

Quick reference


Supply Voltage (`VDD - VSS`)	3.0 V to 18.0 V DC (CD4000B) / 2.0V to 6.0V DC (74HC4053)
Bipolar Negative Rail (`VEE`)	Down to $-9.0\text{ V}$ DC (for dual-rail AC audio signals)
Channels	Triple 2-Channel (3x SPDT Switches: `A`, `B`, `C`)
On-Resistance ( $R_{ON}$ )	$125\ \Omega$ typical at $VDD = 15\text{V}$ ( $240\ \Omega$ at $10\text{V}$ )
Signal Bandwidth	$60\text{ MHz}$ (-3 dB cutoff frequency)
Control Inputs	3 Independent Select Lines ( $A$ , $B$ , $C$ ), Inhibit ( $INH$ )
Package	16-pin DIP / SOIC-16 / TSSOP-16

Pinout (DIP-16 Package)

text

             ┌───┴───┐
          b1 1│ 1   16│ VDD (+3V to +18V)
          b0 2│       │15 b (COMMON B)
          c1 3│ CD4053│14 a (COMMON A)
   c (COMMON)4│       │13 a1
          c0 5│       │12 a0
         INH 6│       │11 A (Select A)
         VEE 7│       │10 B (Select B)
         VSS 8│       │9  C (Select C)
             └───────┘

Pin	Name	Description
1	`b1`	Channel B Switch State 1
2	`b0`	Channel B Switch State 0
3	`c1`	Channel C Switch State 1
4	`c`	Common Channel C Terminal
5	`c0`	Channel C Switch State 0
6	`INH`	Inhibit Input (High = Disconnect all channels; Low = Enable active switches)
7	`VEE`	Negative Voltage Rail (Connect to GND for single supply)
8	`VSS`	Digital Ground (0 V)
9	`C`	Select Line for Channel C (Low = `c0`; High = `c1`)
10	`B`	Select Line for Channel B (Low = `b0`; High = `b1`)
11	`A`	Select Line for Channel A (Low = `a0`; High = `a1`)
12	`a0`	Channel A Switch State 0
13	`a1`	Channel A Switch State 1
14	`a`	Common Channel A Terminal
15	`b`	Common Channel B Terminal
16	`VDD`	Positive Power Supply (+3.0V to +18.0V DC)

Function Table (Per Channel)

INH	Select ( $A/B/C$ )	Connected Switch Path
Low ( $0$ )	Low ( $0$ )	Common terminal connected to State `0` ( $a \leftrightarrow a_0$ )
Low ( $0$ )	High ( $1$ )	Common terminal connected to State `1` ( $a \leftrightarrow a_1$ )
High ( $1$ )	X	High-Z Off (All switches disconnected)

Common mistakes

Leaving VEE (Pin 7) floating: For single-supply DC circuits ( $0\text{V} \dots 5\text{V}$ ), VEE must be tied to VSS (GND).
Routing signals outside supply limits ( $V_{EE} \le V_{SIGNAL} \le V_{DD}$ ): Signals exceeding $V_{DD}$ or dropping below $V_{EE}$ trip ESD diodes and distort audio waveforms.

Notes

CD4053 vs CD4051 vs CD4052: CD4051 is a single 8-channel mux; CD4052 is a dual 4-channel mux; CD4053 is a triple 2-channel SPDT switch array.