Overview
The MC74HC4051ADTR2, part of the MC74HC4051A series, is a high-performance silicon-gate CMOS analog multiplexer/demultiplexer produced by onsemi. This device is designed to achieve fast propagation delays, low ON resistances, and low OFF leakage currents. It controls analog voltages that can vary across the complete power supply range from VCC to VEE. The MC74HC4051A is identical in pinout to the metal-gate MC14051AB and features Channel-Select inputs that determine which analog input/output is connected to the common output/input via an analog switch. When the Enable pin is HIGH, all analog switches are turned off. The device is compatible with standard CMOS outputs and, with pullup resistors, with LSTTL outputs.
Key Specifications
| Parameter | Condition | Min | Max | Unit |
|---|---|---|---|---|
| VCC (Positive DC Supply Voltage) | Referenced to GND | 2.0 | 6.0 | V |
| VEE (Negative DC Supply Voltage) | Referenced to GND | -6.0 | -6.0 | V |
| VIS (Analog Input Voltage) | VEE to VCC | -6.0 | 6.0 | V |
| Vin (Digital Input Voltage) | GND to VCC | 0 | 6.0 | V |
| TA (Operating Temperature Range) | All Package Types | -55 | 125 | °C |
| Ron (Maximum ON Resistance) | Vin = VIL or VIH; VIS = VCC to VEE; IS ≤ 2.0 mA | 100 | 280 | Ω |
| tPLH, tPHL (Maximum Propagation Delay, Channel-Select to Analog Output) | VCC = 2.0 V to 6.0 V | 45 | 350 | ns |
| Cin (Maximum Input Capacitance, Channel-Select or Enable Inputs) | 10 | 10 | pF | |
| CI/O (Maximum Capacitance Analog I/O) | All Switches Off | 35 | 35 | pF |
Key Features
- Fast switching and propagation speeds
- Low ON resistances and low OFF leakage currents
- Analog power supply range (VCC - VEE) = 2.0 to 12.0 V
- Digital (control) power supply range (VCC - GND) = 2.0 to 6.0 V
- Improved linearity and lower ON resistance compared to metal-gate counterparts
- Low crosstalk between switches
- Diode protection on all inputs/outputs
- Low noise operation
- In compliance with JEDEC Standard No. 7A
Applications
- Analog signal routing and switching in various electronic systems
- Data acquisition and measurement systems
- Audio and video signal processing
- Medical and industrial instrumentation
- Automotive and aerospace applications requiring high reliability and performance
Q & A
- What is the MC74HC4051ADTR2 used for?
The MC74HC4051ADTR2 is used as an analog multiplexer/demultiplexer, controlling analog voltages across a wide power supply range.
- What is the operating temperature range of the MC74HC4051ADTR2?
The operating temperature range is from -55°C to 125°C.
- What are the typical propagation delays for the MC74HC4051ADTR2?
The maximum propagation delay from Channel-Select to Analog Output ranges from 45 ns to 350 ns depending on VCC voltage.
- Is the MC74HC4051ADTR2 compatible with LSTTL outputs?
Yes, it is compatible with LSTTL outputs when using pullup resistors.
- What is the maximum ON resistance of the MC74HC4051ADTR2?
The maximum ON resistance is up to 280 Ω depending on the conditions.
- Does the MC74HC4051ADTR2 have diode protection on its inputs/outputs?
Yes, it has diode protection on all inputs/outputs.
- What is the maximum input capacitance for Channel-Select or Enable inputs?
The maximum input capacitance is 10 pF.
- What is the maximum analog I/O capacitance when all switches are off?
The maximum analog I/O capacitance is 35 pF.
- Is the MC74HC4051ADTR2 in compliance with any industry standards?
Yes, it is in compliance with JEDEC Standard No. 7A.
- What are some common applications of the MC74HC4051ADTR2?
Common applications include analog signal routing, data acquisition, audio and video signal processing, medical and industrial instrumentation, and automotive and aerospace systems.
