Overview
The M74HC4051 is a single 8-channel analog multiplexer/demultiplexer fabricated with silicon gate C2MOS technology by STMicroelectronics. It is pin-to-pin compatible with the equivalent metal gate CMOS4000B series. This device contains 8 bidirectional and digitally controlled analog switches, allowing for a wide range of analog signal handling. The M74HC4051 includes built-in level shifting to accommodate analog input signals up to ±6 V (peak) with digital control signals ranging from 0 to 6 V. It also features an inhibit (INH) input terminal to disable all switches when set to a high level. For digital multiplexer/demultiplexer operation, the VEE supply pin is connected to GND.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC - VEE) | 2 to 12 | V |
| Analog Input Voltage Range | ±6 | V |
| ON Resistance (RON) | 70 Ω (typ. at VCC - VEE = 4.5V), 50 Ω (typ. at VCC - VEE = 9V) | Ω |
| Power Dissipation (ICC) | 4 μA (max. at TA = 25°C) | μA |
| Switching Time (tpd) | 15 ns (typ. at TA = 25°C) | ns |
| Operating Temperature Range | -55 to 125 | °C |
| Input Capacitance (CIN) | 5 pF | pF |
| Common Terminal Capacitance (CI/O) | 36 pF | pF |
Key Features
- High noise immunity: VNIH = VNIL = 28% VCC(min.)
- Low sine wave distortion: 0.02% at VCC - VEE = 9V
- Pin and function compatible with 74 series 4051
- High ON/OFF output voltage ratio
- Low crosstalk between switches
- Low power dissipation: ICC = 4μA(max.) at TA=25°C
- Logic level translation to enable 5V logic signal to communicate with ±5V analog signal
- Fast switching: tpd = 15ns (TYP.) at TA = 25°C
- Wide operating supply voltage range (VCC - VEE) = 2 to 12V
- Wide analog input voltage range: ±6V
- Protection circuits against static discharge and transient excess voltage
Applications
The M74HC4051 is versatile and can be used in various applications, including:
- Analog signal routing and switching in audio and video systems
- Data acquisition systems where multiple analog inputs need to be multiplexed
- Industrial control systems requiring analog signal processing
- Medical devices that need precise analog signal handling
- Automotive systems for sensor data multiplexing
Q & A
- What is the M74HC4051?
The M74HC4051 is a single 8-channel analog multiplexer/demultiplexer fabricated with silicon gate C2MOS technology.
- What is the operating supply voltage range of the M74HC4051?
The operating supply voltage range is from 2 to 12 V (VCC - VEE).
- What is the typical ON resistance of the M74HC4051?
The typical ON resistance is 70 Ω at VCC - VEE = 4.5V and 50 Ω at VCC - VEE = 9V.
- How many channels does the M74HC4051 have?
The M74HC4051 has 8 bidirectional and digitally controlled analog channels.
- What is the maximum analog input voltage range for the M74HC4051?
The maximum analog input voltage range is ±6 V.
- What is the switching time of the M74HC4051?
The switching time (tpd) is typically 15 ns at TA = 25°C.
- Is the M74HC4051 protected against static discharge?
- What is the inhibit function in the M74HC4051?
The inhibit (INH) input terminal disables all switches when set to a high level.
- What are the package options for the M74HC4051?
The M74HC4051 is available in PDIP-16, SOP-16, and TSSOP-16 packages.
- Is the M74HC4051 compatible with other CMOS series?
