Overview
The CD4066BMT, produced by Texas Instruments, is a CMOS Quad Bilateral Switch designed for the transmission or multiplexing of analog or digital signals. This device is pin-for-pin compatible with the CD4016B but offers a significantly lower on-state resistance, making it suitable for a wide range of applications. The CD4066BMT operates with a supply voltage range of 3V to 18V, allowing it to be used in various electronic systems. It consists of four independent bilateral switches, each controlled by separate logic inputs, enabling flexible signal routing and switching.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD - VSS) | - | - | 20 | V |
| On-State Resistance (Ron) at 15V | - | 125 | - | Ω |
| Control Input Impedance | - | 10^12 | - | Ω |
| Crosstalk Between Switches at 8MHz | - | -50 | - | dB |
| Quiescent Device Current at 20V | - | 5 | 7.5 | µA |
| Switching Frequency | - | 40 | - | MHz |
| Propagation Delay at 15V | 7 | 15 | - | ns |
Key Features
- Low on-state resistance of 125Ω typical at 15V operation.
- High control input impedance of 10^12Ω typical.
- Low crosstalk between switches, typically -50dB at 8MHz.
- Matched control-input to signal-output capacitance to reduce output signal transients.
- Wide operating supply voltage range of 3V to 18V.
- Four independent bilateral switches with separate control inputs.
- High frequency response, with a switching frequency of 40MHz typical.
Applications
- Analog signal switching and multiplexing: signal gating, modulators, squelch controls, demodulators, choppers, commutating switches.
- Digital signal switching and multiplexing.
- Analog-to-digital and digital-to-analog conversions.
- Digital control of frequency, impedance, phase, and analog-signal gain.
- Building automation.
Q & A
- What is the CD4066BMT used for?
The CD4066BMT is used for the transmission or multiplexing of analog or digital signals.
- What is the typical on-state resistance of the CD4066BMT at 15V?
The typical on-state resistance is 125Ω at 15V operation.
- What is the control input impedance of the CD4066BMT?
The control input impedance is typically 10^12Ω.
- What is the crosstalk between switches at 8MHz?
The crosstalk between switches is typically -50dB at 8MHz.
- What is the operating supply voltage range of the CD4066BMT?
The operating supply voltage range is 3V to 18V.
- How many independent bilateral switches does the CD4066BMT have?
The CD4066BMT has four independent bilateral switches.
- What is the switching frequency of the CD4066BMT?
The switching frequency is typically 40MHz.
- What are some common applications of the CD4066BMT?
Common applications include analog signal switching, digital signal switching, analog-to-digital and digital-to-analog conversions, and building automation.
- How does the CD4066BMT handle signal-level range?
The signal-level range is from VSS to VDD, allowing for flexible signal routing.
- What is the quiescent device current at 20V?
The quiescent device current at 20V is typically 5µA to 7.5µA.
