The CD4066BC is a quad bilateral switch intended for the
transmission or multiplexing of analog or digital signals. It is
pin-for-pin compatible with CD4016BC, but has a much
lower “ON” resistance, and “ON” resistance is relatively
constant over the input-signal range.
Features

Wide supply voltage range 3V to 15V

High noise immunity 0.45 VDD (typ.)

Wide range of digital and ±7.5 VPEAK
analog switching

“ON” resistance for 15V operation 80Ω

Matched “ON” resistance ΔRON = 5Ω (typ.)
over 15V signal input

“ON” resistance flat over peak-to-peak signal range

High “ON”/“OFF” 65 dB (typ.)
output voltage ratio @ fis = 10 kHz, RL = 10 kΩ

High degree linearity 0.1% distortion (typ.)
High degree linearity @ fis = 1 kHz, Vis = 5Vp-p,
High degree linearity VDD?VSS = 10V, RL = 10 kΩ

Extremely low “OFF” 0.1 nA (typ.)
switch leakage: @ VDD?VSS = 10V, TA = 25°C

Extremely high control input impedance 1012Ω(typ.)

Low crosstalk ?50 dB (typ.)
between switches @ fis = 0.9 MHz, RL = 1 kΩ

Frequency response, switch “ON” 40 MHz (typ.)
Applications
? Analog signal switching/multiplexing
? Signal gating
? Squelch control
? Chopper
? Modulator/Demodulator
? Commutating switch
? Digital signal switching/multiplexing
? CMOS logic implementation
? Analog-to-digital/digital-to-analog conversion
? Digital control of frequency, impedance, phase, and
analog-signal-gain