1FEATURES
• Qualified for Automotive Applications
• 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/Off Output-Voltage Ratio: 80 dB
Typical at fis = 10 kHz, RL = 1 kΩ
• High Degree of Linearity: <0.5% Distortion
Typical at f is = 1 kHz, Vis = 5 V p-p,
V DD – VSS ≥ 10 V, RL = 10 kΩ
• 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 at fis = 8 MHz, RL = 1 kΩ
• 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
• Latch-Up Exceeds 100mA per JESD78 - Class I
• Meets All Requirements of JEDEC Tentative
Standard No. 13-B, Standard Specifications for
Description of "B" Series CMOS Devices

APPLICATIONS
• 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-Q1 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-Q1 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 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 is recommended.