CD4066B

CMOS QUAD BILATERAL SWITCH

SCHS051D – NOVEMBER 1998 – REVISED SEPTEMBER 2003

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POST OFFICE BOX 655303

Switching

Operation

Within 5

Ω Over 15-V Signal-Input Range

Peak-to-Peak Signal Range

Resulting in Very Low Offset Current and

High Effective Off-State Resistance: 10 pA

(Control Circuit Isolated From Signal

Ω Typical

Capacitance: Reduces Output Signal

Transients

Typical

Standard No. 13-B, Standard Specifications

for Description of “B” Series CMOS

Devices

– Analog Signal Switching/Multiplexing:

Signal Gating, Modulator, Squelch

Control, Demodulator, Chopper,

Commutating Switch

– Digital Signal Switching/Multiplexing

– Transmission-Gate Logic Implementation

– Analog-to-Digital and Digital-to-Analog

Conversion

– Digital Control of Frequency, Impedance,

Phase, and Analog-Signal Gain

description/ordering information

The CD4066B is a quad bilateral switch intended for the transmission or multiplexing of analog or digital signals.

It is pin-for-pin compatible with the CD4016B, but exhibits a much lower on-state resistance. In addition, the

on-state resistance is relatively constant over the full signal-input range.

The CD4066B consists of four bilateral switches, each with independent controls. Both the p and the n devices

in a given switch are biased on or off simultaneously by the control signal. As shown in Figure 1, the well of the

is off). This configuration eliminates the variation of the switch-transistor threshold voltage with input signal and,

thus, keeps the on-state resistance low over the full operating-signal range.

The advantages over single-channel switches include peak input-signal voltage swings equal to the full supply

voltage and more constant on-state impedance over the input-signal range. However, for sample-and-hold

applications, the CD4016B is recommended.

Copyright

 2003, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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SIG A IN/OUT

SIG A OUT/IN

SIG B OUT/IN

SIG B IN/OUT

CONTROL B

CONTROL C

CONTROL A

CONTROL D

SIG D IN/OUT

SIG D OUT/IN

SIG C OUT/IN

SIG C IN/OUT

E, F, M, NS, OR PW PACKAGE

(TOP VIEW)