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. 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.
- 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 fis = 1 kHz, Vis = 5 V p-p, VDD − 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
- Meets All Requirements of JEDEC Tentative 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
Download Datasheet CD4066B