Overview
The CD4066B, specifically the CD4066BPWRG4, is a quad bilateral switch produced by Texas Instruments. This device is designed for the transmission or multiplexing of analog or digital signals. It is pin-for-pin compatible with the CD4016B but offers a significantly lower on-state resistance, which remains relatively constant over the full signal-input range. The CD4066B consists of four independent bilateral switches, each controlled by separate logic inputs. This component is versatile and can operate with a wide supply voltage range of 3V to 18V, making it suitable for a broad array of applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD - VSS) | - | - | 20 | V |
| On-State Resistance (ron) at 15V | - | 125 | - | Ω |
| Propagation Delay (tpd) at RL = 1 kΩ | - | 10-20 | - | ns |
| Input Capacitance (Cin) | - | 5-7.5 | - | pF |
| Output Capacitance (Cos) | - | 8 | - | pF |
| Feedthrough Capacitance (Cios) | - | 0.5 | - | pF |
| Junction-to-Ambient Thermal Resistance (RθJA) | - | 93.7-112.4 | - | °C/W |
Key Features
- Quad bilateral switch for analog or digital signal transmission or multiplexing.
- Low on-state resistance (typically 125 Ω at 15V) that remains relatively constant over the full signal-input range.
- Wide operating supply voltage range of 3V to 18V.
- Independent control for each of the four switches.
- CMOS technology with balanced output drive.
- Pin-for-pin compatible with CD4016B but with improved on-state resistance.
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.
Q & A
- What is the primary function of the CD4066B?
The CD4066B is a quad bilateral switch designed for the transmission or multiplexing of analog or digital signals.
- What is the typical on-state resistance of the CD4066B?
The typical on-state resistance of the CD4066B is 125 Ω at 15V operation.
- What is the operating supply voltage range of the CD4066B?
The CD4066B operates with a supply voltage range of 3V to 18V.
- How many independent switches does the CD4066B have?
The CD4066B consists of four independent bilateral switches, each with its own control input.
- Is the CD4066B compatible with other Texas Instruments devices?
Yes, the CD4066B is pin-for-pin compatible with the CD4016B but offers improved on-state resistance.
- What are some common applications of the CD4066B?
Common applications include analog and digital signal switching/multiplexing, transmission-gate logic, and analog-to-digital/digital-to-analog conversion.
- What is the thermal resistance of the CD4066B in different packages?
The junction-to-ambient thermal resistance (RθJA) varies by package, ranging from 93.7°C/W to 112.4°C/W.
- How does the CD4066B handle propagation delay?
The propagation delay (tpd) is typically between 10-20 ns at RL = 1 kΩ.
- What are the input and output capacitances of the CD4066B?
The input capacitance (Cin) is typically 5-7.5 pF, and the output capacitance (Cos) is typically 8 pF.
- What is the feedthrough capacitance of the CD4066B?
The feedthrough capacitance (Cios) is typically 0.5 pF.
