NCS325SN2T1G: Overview,Specifications,Main uses,Features,application fields,working principle and alternative models

NCS325SN2T1G Overview:

The NCS325SN2T1G is a general-purpose operational amplifier manufactured by ON Semiconductor. It is part of the NCS325 series and is designed for various analog circuit applications. Here is an overview along with specifications, main uses, features, application fields, working principle, and alternative models:



  • Manufacturer: ON Semiconductor
  • Part Number: NCS325SN2T1G
  • Type: Operational Amplifier (Op-Amp)
  • Package: SOT-23
  • Supply Voltage: Typically operates from a single power supply ranging from 1.8V to 5.5V
  • Gain Bandwidth Product: Specified for different gain settings
  • Input Offset Voltage: Low input offset voltage for precision applications
  • Slew Rate: The rate at which the op-amp output can change with respect to the input signal
  • Operating Temperature Range: Typically from -40°C to 125°C
  • Output Current: Output current capability of the op-amp

Main Uses:

  • Signal Conditioning: Used for signal conditioning applications due to its versatility and performance.
  • Portable Electronics: Suitable for portable electronics and devices operating on low power.
  • Filters: Utilized in active filter circuits for various frequency responses.
  • Voltage and Current Sensing: Applied in voltage and current sensing circuits.
  • Audio Amplification: Used in audio amplifiers and audio signal processing circuits.
  • DataSheet NCS325SN2T1G PDF


  • Low Power Consumption: Suitable for battery-powered applications.
  • Rail-to-Rail Input and Output: Capable of input and output signals reaching close to the supply rails.
  • Low Noise: Provides minimal added noise to the circuit.
  • Small Package Size: SOT-23 package is compact and suitable for space-constrained designs.
  • Unity Gain Stable: Stable at gain settings close to unity.

Application Fields:

  • Consumer Electronics: Found in various consumer electronic devices like smartphones, tablets, and portable audio devices.
  • Automotive Electronics: Used in automotive applications for sensor signal processing and control systems.
  • Industrial Automation: Utilized in industrial automation for instrumentation and control tasks.
  • Medical Devices: Applied in medical devices for signal processing and monitoring.
  • Communications: Found in communication systems for signal conditioning and processing.

Working Principle:

  • The NCS325SN2T1G operates based on the basic principles of an operational amplifier, amplifying the voltage difference between its inputs.
  • It maintains high input impedance and low output impedance for signal processing and amplification.
  • The op-amp's output voltage is a function of the voltage difference between its inputs, multiplied by its gain factor.

Alternative Models:

  • Some alternative models to the NCS325SN2T1G may include other operational amplifiers from different manufacturers like Texas Instruments, Analog Devices, Maxim Integrated, or Microchip Technology.
  • Alternative models with similar specifications and features could be the MCP6001 from Microchip or the OPA333 from Texas Instruments.

When selecting an operational amplifier like the NCS325SN2T1G, it's essential to consider the specific requirements of your application and review the datasheets of alternative models to ensure compatibility and optimal performance.

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