ON Semiconductor FSC2903DR2
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- FSC2903DR2
- ON Semiconductor
- ANA LO VOLT.COMP'TOR DUAL
- Linear - Comparators
- FSC2903DR2 Datasheet
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- Bulk
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What is FSC2903DR2
ON Semiconductor Part Number FSC2903DR2（Linear - Comparators）, developed and manufactured by ON Semiconductor, distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.
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FSC2903DR2 Specifications
- Part NumberFSC2903DR2
- CategoryLinear - Comparators
- ManufacturerON Semiconductor
- DescriptionANA LO VOLT.COMP'TOR DUAL
- PackageBulk
- Series-
- Type-
- Operating Temperature-
- Mounting Type-
- Package / Case-
- Supplier Device Package-
- Output Type-
- Voltage - Supply, Single/Dual (±)-
- Number of Elements-
- Voltage - Input Offset (Max)-
- Current - Input Bias (Max)-
- Current - Quiescent (Max)-
- Propagation Delay (Max)-
- CMRR, PSRR (Typ)-
- Current - Output (Typ)-
- Hysteresis-
Application of FSC2903DR2
FSC2903DR2 Datasheet
FSC2903DR2 Datasheet , Bulk
FSC2903DR2 Classification
Linear - Comparators
FAQ about Linear - Comparators
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1. What are the most common comparators?
The most common types of comparators include zero-level comparators (zero-crossing comparators), arbitrary-level comparators (captured-zero comparators), and hysteresis comparators (Schmitt triggers).
Zero-level comparator (zero-crossing comparator)
The reference voltage of the zero-level comparator (zero-crossing comparator) is zero. When the input voltage crosses the threshold voltage, the output voltage jumps. This type of comparator can be divided into two types: inverting input and non-inverting input according to the different input methods. Its transfer characteristics are drawn by finding the threshold and analyzing the output voltage change law when the input voltage changes from the lowest to the highest and from the highest to the lowest.
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2. What is an inverting non-inverting comparator?
Inverters and non-inverters are two common circuit elements in electronics, and they play an important role in circuit design and signal processing.
Inverter
An inverter is a circuit element that can output the input signal in reverse. In electronics, inverters are often used in circuit designs such as signal amplification, filtering, and logic gates. Its working principle is as follows:
Working principle: Inverters usually use transistors or op amps as core components. Taking the transistor inverting amplifier circuit as an example, when the input signal is a positive voltage, the transistor is in the on state and the output signal is a low level; when the input signal is a negative voltage, the transistor is in the off state and the output signal is a high level.
Features: The output signal phase of the inverter is 180 degrees different from the input signal phase, the gain is stable, and it is often used for signal amplification and phase reversal.
Is the comparator linear or nonlinear?
Comparators are nonlinear.
A comparator is a nonlinear device, usually composed of an operational amplifier (op amp), and is mainly used in nonlinear state applications. The main function of a comparator is to compare the size of two input signals and output a high or low level signal based on the comparison result. Since the gain of the comparator is very large, after the input signal passes through the comparator, the output has only two states: high level and low level. This characteristic makes the comparator play an important role in circuit design and application.
Definition and difference between linearity and nonlinearity
Linear device: The output maintains a linear relationship with the input, that is, the output is a function of the input, and the slope remains unchanged. For example, the operational amplifier works in the linear region with negative feedback.
Nonlinear device: The output does not maintain a linear relationship with the input, and the output is a nonlinear function of the input. The comparator works in the nonlinear region without negative feedback or positive feedback, and the output has only two states: high level and low level.
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3. What is the most common comparator?
The most common types of comparators include zero-level comparators (zero-crossing comparators), arbitrary level comparators (captured zero comparators), and hysteresis comparators (Schmitt triggers).
Zero-level comparator (zero-crossing comparator)
A zero-level comparator is a circuit that compares an analog input signal with a fixed reference voltage (threshold voltage). When the input voltage crosses the threshold voltage, the output level changes. This comparator is usually used to detect whether the signal is zero or exceeds a certain threshold. According to the different input methods, it can be divided into two types: inverting input and non-inverting input.
Arbitrary level comparator (captured zero comparator)
The arbitrary level comparator is to change the ground terminal in the zero level comparator to a reference voltage (UR). By adjusting the size and polarity of the reference voltage, different threshold voltages can be set. This comparator has a simple structure and high sensitivity, but poor anti-interference ability, and is suitable for application scenarios that require high sensitivity.
Hysteresis comparator (Schmitt trigger)
The hysteresis comparator is also called a Schmitt trigger or hysteresis comparator, which has two different threshold voltages, corresponding to the input signal from large to small and from small to large. The output voltage of this comparator will produce a "hysteresis" phenomenon when the input signal approaches the threshold, thereby preventing the output state from repeatedly jumping near the threshold. Hysteresis comparators are also divided into two types: inverting input and non-inverting input.
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