Overview
The CD4051BK3, produced by Harris Corporation, is a single 8-channel analog multiplexer/demultiplexer. It belongs to the CD4000 series of integrated circuits, which utilize complementary MOS (CMOS) technology. This device is designed to control analog signals using digital inputs, making it versatile for various analog and digital multiplexing and demultiplexing applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| DC Supply Voltage (VDD) | 5 | 15 | VDC | ||
| Input Voltage (VIN) | 0V to VDD | 0 | VDD | VDC | |
| Operating Temperature Range (TA) | -40 | 85 | °C | ||
| Quiescent Device Current (IDD) | VDD = 5V | 20 | 150 | µA | |
| Control Input Current (IIN) | VDD = 15V, VIN = 0V | -0.1 | 1.0 | µA | |
| Channel Leakage Current | Inhibit = 7.5V, VDD = 7.5V, VEE = -7.5V | ±200 | ±2000 | nA | |
| Propagation Delay Time (tPHZ) | RL = 1 kΩ, CL = 50 pF | 210 | 420 | ns | |
| Input Capacitance (CIN) | Control input | 5 | 7.5 | pF | |
| Output Capacitance (COUT) | Common OUT/IN | 10 | 30 | pF |
Key Features
- Wide range of digital and analog signal levels: Control of analog signals up to 20Vp-p can be achieved by digital signal amplitudes of 4.5V to 20V.
- Low ON impedance and very low OFF leakage current: Ensures minimal signal distortion and power loss.
- Very low quiescent power dissipation: Independent of the logic state of the control signals, the device dissipates extremely low quiescent power.
- Binary address decoding on chip: Simplifies the selection process for the desired channel.
- Break-before-make switching: Eliminates channel overlap, ensuring clean switching between channels.
Applications
- Analog and digital multiplexing and demultiplexing: Ideal for applications requiring the selection of multiple analog signals using digital control inputs.
- A/D and D/A conversion: Can be used in analog-to-digital and digital-to-analog conversion circuits to manage signal routing.
- Signal gating: Useful in applications where specific signals need to be selectively passed through or blocked.
Q & A
- What is the CD4051BK3 used for?
The CD4051BK3 is used for analog and digital multiplexing and demultiplexing, allowing the selection of one of eight analog input channels using three binary digital control inputs.
- What is the operating temperature range of the CD4051BK3?
The operating temperature range is -40°C to +85°C.
- What are the typical quiescent current values for the CD4051BK3?
The quiescent current is typically 20 µA at VDD = 5V, 40 µA at VDD = 10V, and 80 µA at VDD = 15V.
- How does the inhibit input function on the CD4051BK3?
When a logical “1” is present at the inhibit input terminal, all channels are turned “OFF”.
- What is the propagation delay time for the CD4051BK3?
The propagation delay time (tPHZ) is typically between 210 ns to 420 ns for RL = 1 kΩ and CL = 50 pF.
- Can the CD4051BK3 handle high-frequency signals?
Yes, the device has a frequency response up to 40 MHz for a 5Vp-p sine wave input.
- What is the input capacitance of the CD4051BK3?
The input capacitance (CIN) for the control input is typically between 5 pF to 7.5 pF.
- Is the CD4051BK3 sensitive to electrostatic discharge?
Yes, the device is sensitive to electrostatic discharge; proper IC handling procedures must be followed.
- What are the typical values for channel leakage current?
The channel leakage current is typically ±200 nA to ±2000 nA under specified conditions.
- Can the CD4051BK3 be used in life support devices?
No, the device is not recommended for use in life support devices or systems due to the potential risks associated with its failure.
