Overview
The NCS2252SQ2T2G is a high-speed, low-voltage comparator from onsemi, designed for applications requiring fast response times and low power consumption. This device is part of the NCS2252 series, which features rail-to-rail input and output capabilities. The NCS2252SQ2T2G is specifically packaged in the SC-88A (SC70-5) package and is available with an open-drain output stage. This makes it versatile for various applications, including those requiring level translation or level shifting.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage Range | VS | 1.8 | 5.5 | V | |
| Input Voltage Range | VIN | VSS - 0.3 | VDD + 0.3 | V | |
| Propagation Delay (VOD = 100 mV) | tpHL | 50 | 64 | ns | |
| Quiescent Supply Current (No Load) | IDD | 145 | 200 | 250 | μA |
| Input Offset Voltage | VOS | 0.5 | 6 | 6 | mV |
| Input Bias Current | IIB | 20 | 1000 | pA | |
| Output Leakage Current | ILEAK | 1 | nA | ||
| Output Rise Time (10% to 90%, VOD = 100 mV) | trise | 7 | ns | ||
| Output Fall Time (90% to 10%, VOD = 100 mV) | tfall | 6 | ns | ||
| Ambient Temperature Range | TA | -40 | 125 | °C |
Key Features
- High-Speed Operation: Propagation delay of 50 ns with a 100 mV overdrive, making it suitable for applications requiring fast response times.
- Rail-to-Rail Input and Output: Input common mode voltage range extends 200 mV beyond the supply rails, allowing voltage sensing at ground or the supply voltage.
- Low Power Consumption: Typical quiescent supply current of 200 μA at 5 V supply.
- Open-Drain Output: Allows the output to be connected through a pull-up resistor to another supply voltage for level translation or level shifting.
- Automotive Qualified: Devices with the NCV prefix are AEC-Q100 qualified and PPAP capable.
- Compact Packaging: Available in TSOP-5 (SOT23-5) and SC-88A (SC70-5) packages.
Applications
- Automotive Systems: Suitable for automotive applications due to its AEC-Q100 qualification and robust performance over a wide temperature range.
- Industrial Control Systems: Used in industrial control systems where fast and reliable voltage comparisons are necessary.
- Medical Devices: Applicable in medical devices requiring low power consumption and high-speed operation.
- Consumer Electronics: Ideal for consumer electronics that need efficient and fast voltage comparison circuits.
- Level Translation and Level Shifting: The open-drain output stage makes it suitable for applications requiring level translation or level shifting.
Q & A
- What is the propagation delay of the NCS2252SQ2T2G?
The propagation delay of the NCS2252SQ2T2G is 50 ns with a 100 mV overdrive.
- What is the input voltage range of the NCS2252SQ2T2G?
The input voltage range extends 200 mV beyond the supply rails, from VSS - 0.2 V to VDD + 0.2 V.
- What type of output stage does the NCS2252SQ2T2G have?
The NCS2252SQ2T2G has an open-drain output stage.
- What is the typical quiescent supply current of the NCS2252SQ2T2G?
The typical quiescent supply current is 200 μA at a 5 V supply.
- Is the NCS2252SQ2T2G automotive qualified?
Yes, devices with the NCV prefix are AEC-Q100 qualified and PPAP capable.
- What are the available packages for the NCS2252SQ2T2G?
The device is available in TSOP-5 (SOT23-5) and SC-88A (SC70-5) packages.
- How does the open-drain output stage affect the output timing?
The output low-to-high propagation delay is determined by the RC time constant of the pull-up resistor and the load capacitance.
- What is the recommended bypass capacitor value for the VDD pin?
A bypass capacitor of at least 0.1 μF is recommended as close as possible to the VDD pin.
- How can hysteresis be added to the NCS2252SQ2T2G circuit?
Hysteresis can be added through an external resistor network, particularly useful in configurations where noise-induced switching is a concern.
- What is the ambient temperature range for the NCS2252SQ2T2G?
The ambient temperature range is from -40°C to 125°C.
