Overview
The M74VHC1GT66DFT1G, produced by onsemi, is a Single Pole Single Throw (SPST) analog switch. This device is designed to achieve high speed propagation delays and low ON resistances, while maintaining low power dissipation. It is compatible with TTL-type input thresholds, allowing it to be used as a logic-level translator between different voltage levels, such as from 3 V CMOS logic to 5 V CMOS logic or from 1.8 V CMOS logic to 3 V CMOS logic. The device features input protection circuitry that provides overvoltage tolerance up to 7 V, making it suitable for interfacing between 5 V and 3 V circuits.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| DC Supply Voltage (VCC) | 2.0 | 5.5 | V | |
| DC Input Voltage (VIN) | −0.5 | 7.0 | V | |
| Analog Input Voltage (VIS) | −0.5 | 7.0 | V | |
| Maximum High-Level Input Voltage (VIH) | 1.2 | 2.0 | V | |
| Maximum Low-Level Input Voltage (VIL) | 0.53 | 0.8 | V | |
| Maximum ON Resistance (RON) | 40 | 60 | Ω | |
| Maximum Off-Channel Leakage Current (IOFF) | 0.1 | 1.0 | μA | |
| Propagation Delay (tPLH, tPHL) | 1 | 7 | ns | |
| Operating Temperature Range (TA) | −55 | 125 | °C |
Key Features
- High Speed: Propagation delay of 20 ns (Typ) at VCC = 5 V
- Low Power Dissipation: ICC = 1.0 μA (Max) at TA = 25°C
- Diode Protection Provided on Inputs and Outputs
- Improved Linearity and Lower ON Resistance over Input Voltage
- On/Off Control Input Has Overvoltage Tolerance (OVT)
- Pb-Free Packages Available
Applications
The M74VHC1GT66DFT1G is suitable for a variety of applications, including:
- Logic-Level Translation: Between different CMOS logic levels (e.g., 3 V to 5 V or 1.8 V to 3 V)
- Analog Signal Switching: In audio, video, and other analog signal processing circuits
- Interface Circuits: For connecting 5 V circuits to 3 V circuits while providing overvoltage protection
- High-Speed Data Transmission: Due to its low propagation delays and low ON resistances
Q & A
- What is the primary function of the M74VHC1GT66DFT1G?
The primary function is to act as a Single Pole Single Throw (SPST) analog switch, controlling analog and digital voltages. - What are the typical propagation delays for this device?
The typical propagation delays are around 20 ns at VCC = 5 V. - What is the maximum ON resistance of the M74VHC1GT66DFT1G?
The maximum ON resistance is 60 Ω. - Does the device have overvoltage protection?
Yes, the device has input protection circuitry that provides overvoltage tolerance up to 7 V. - What is the operating temperature range of the M74VHC1GT66DFT1G?
The operating temperature range is from −55°C to 125°C. - Is the M74VHC1GT66DFT1G available in Pb-Free packages?
Yes, Pb-Free packages are available. - What are some common applications for this device?
Common applications include logic-level translation, analog signal switching, interface circuits, and high-speed data transmission. - What is the maximum off-channel leakage current?
The maximum off-channel leakage current is 1.0 μA. - What is the maximum quiescent supply current?
The maximum quiescent supply current is 1.0 μA at VCC = 5.5 V. - Does the device support high-speed CMOS logic levels?
Yes, it is compatible with high-speed CMOS logic levels and can operate with VCC from 2.0 V to 5.5 V.
