Sunday, June 30, 2013

CD4066B

Description

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.

Features:
  • 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
Apllications:
  • 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
Pinout CD4066

 Download Datasheet CD4066B

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