The CD4066B device 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 device, 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 device 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 17, the well of the n-channel device on each switch is tied to either the input (when the switch is on) or to VSS (when the switch 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 device is recommended.

15-V Digital or ±7.5-V Peak-to-Peak Switching

125-Ω Typical On-State Resistance for

15-V Operation
Switch On-State Resistance Matched to Within

5 Ω Over 15-V Signal-Input Range
On-State Resistance Flat Over Full

Peak-to-Peak Signal Range
High On or Off Output-Voltage Ratio:

80dBTypicalatfis =10kHz,RL =1kΩ
High Degree of Linearity: <0.5% Distortion Typical at fis = 1 kHz, Vis = 5-Vp-p
VDD –VSS ≥10-V,RL =10kΩ
Extremely Low Off-State Switch Leakage, Resulting in Very Low Offset Current and High Effective Off-State Resistance: 10 pA Typical at VDD – VSS = 10-V, TA = 25°C
Extremely High Control Input Impedance (Control Circuit Isolated From Signal Circuit): 1012 Ω Typical
Low Crosstalk Between Switches: –50 dB Typical atfis =8MHz,RL =1kΩ
Matched Control-Input to Signal-Output Capacitance: Reduces Output Signal Transients
Frequency Response, Switch On = 40 MHz Typical
100% Tested for Quiescent Current at 20-V
5-V, 10-V, and 15-V Parametric Ratings

Tuotekoodi	184-4066BE
IC tyyppi	CMOS
Kotelo	DIL14

CD4066BE CMOS Quad Bilateral Switch DIL14