• OPA227UA/2K5 SOIC-8


Op Amp Single Precision Amplifier ±18V/36V 8-Pin SOIC T/R


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  • Part Number : OPA227UA/2K5

  • Package/Case : SOIC-8

  • Brands : TI

  • Components Categories : Instrumentation, OP Amps, Buffer Amps

  • Datesheet : OPA227UA/2K5 DataSheet (PDF)

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Overview of OPA227UA/2K5

The OPA227UA/2K5 is a precision operational amplifier (op-amp) featuring low offset voltage, low input bias current, and high common-mode rejection ratio (CMRR). It is designed for precision analog signal processing applications where high accuracy and stability are required.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • NC: No Connection
  • V-: Inverting Input
  • V+: Non-Inverting Input
  • VCC+: Positive Power Supply
  • OUT: Output

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the OPA227UA/2K5 op-amp for a visual representation.

Key Features

  • Precision Performance: The OPA227UA/2K5 offers high precision with low offset voltage and input bias current, ideal for accurate signal processing.
  • Low Noise: This op-amp provides low noise operation, making it suitable for applications requiring minimal signal interference.
  • Wide Bandwidth: With a wide bandwidth range, the OPA227UA/2K5 can handle high-frequency signals effectively.
  • High CMRR: The high common-mode rejection ratio ensures effective rejection of common-mode noise in differential signal applications.
  • Low Quiescent Current: The op-amp has low quiescent current consumption, making it energy-efficient for various applications.

Note: For detailed technical specifications, please refer to the OPA227UA/2K5 datasheet.


  • Data Acquisition Systems: Ideal for precision data acquisition systems requiring accurate signal amplification.
  • Filter Circuits: Suitable for constructing filter circuits for noise reduction and signal conditioning.
  • Instrumentation Amplifiers: The OPA227UA/2K5 can be used in instrumentation amplifiers for precise measurement applications.


The OPA227UA/2K5 is a precision op-amp designed to provide accurate amplification and filtering of analog signals in various applications, ensuring high-quality signal processing.

Usage Guide

  • Power Supply: Connect the positive and negative power supplies (VCC+ and VCC-) to the appropriate voltage levels.
  • Input Connections: Connect the analog input signal to the non-inverting (V+) and inverting (V-) input pins.
  • Output Handling: Obtain the amplified output signal from the OUT pin of the op-amp.

Frequently Asked Questions

Q: What is the typical offset voltage of the OPA227UA/2K5?
A: The OPA227UA/2K5 typically has an offset voltage in the range of microvolts, ensuring minimal error in signal processing applications.

Q: Is the OPA227UA/2K5 suitable for high-precision audio applications?
A: Yes, the OPA227UA/2K5's precision performance makes it suitable for high-fidelity audio applications requiring accurate signal amplification.


For similar functionalities, consider these alternatives to the OPA227UA/2K5:

  • OPA2227PA: A precision op-amp with similar features and performance characteristics to the OPA227UA/2K5.
  • OPA2277PA: This op-amp offers high precision and low noise for applications demanding high-quality signal processing.



The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 5 Vos (offset voltage at 25°C) (max) (mV) 0.075
GBW (typ) (MHz) 8 Slew rate (typ) (V/µs) 2.3
Rail-to-rail No Offset drift (typ) (µV/°C) 0.1
Iq per channel (typ) (mA) 3.7 Vn at 1 kHz (typ) (nV√Hz) 3
CMRR (typ) (dB) 138 Rating Catalog
Operating temperature range (°C) -40 to 85 Input bias current (max) (pA) 10000
Iout (typ) (A) 0.045 Architecture Bipolar
Input common mode headroom (to negative supply) (typ) (V) 2 Input common mode headroom (to positive supply) (typ) (V) -2
Output swing headroom (to negative supply) (typ) (V) 2 Output swing headroom (to positive supply) (typ) (V) -2
THD + N at 1 kHz (typ) (%) 0.00005

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