4066 IC Quad Bilateral Switch

Description

4066 IC
Quad Bilateral

Switch

The CD4066 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 CD4016 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 CD4066 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. The well of the n-channel device on each switch is tied to either the input (when the switch is on) or to V
SS
(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 CD4016 device 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 or Off Output-Voltage Ratio: 80 dB Typical at f
is
= 10 kHz, R
L
= 1 kΩ

High Degree of Linearity: <0.5% Distortion Typical at f is = 1 kHz, V is = 5-V p-p, V DD – V SS ≥ 10-V, R L = 10 kΩ Extremely Low Off-State Switch Leakage, Resulting in Very Low Offset Current and High Effective Off-State Resistance: 10 pA Typical at V DD – V SS = 10-V, T A = 25°C Extremely High Control Input Impedance (Control Circuit Isolated From Signal Circuit): 10 12 Ω Typical Low Crosstalk Between Switches: –50 dB Typical at f is = 8 MHz, R L = 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 Specifications:- Parameter Specification Part number CD4066B Configuration 1:1 SPST Number of channels (#) 4 Ron (Typ) (Ohms) 125 Bandwidth (MHz) 40 Rating See Data Sheet Operating temperature range (C) -55 to 125 Package Group PDIP|14 Input/output continuous current (Max) (mA) 10 Supply current (Typ) (uA) 0.01 CON (Typ) (pF) 8 Pin Configuration: Applications: Analog and digital signal multiplexing in data acquisition systems. Signal gating and chopping in instrumentation circuits. Modulation and demodulation in communication devices. Switched-capacitor filters and programmable gain amplifiers. Audio signal routing and switching in consumer electronics. Sample-and-hold circuits with recommended alternatives for precision. Datasheet: CD4066