• OPA227U SOIC (D)-8
OPA227U SOIC (D)-8


With advanced technology and superior design, the OPA227U delivers unmatched accuracy and minimal background noise


  • 90-day after-sales guarantee
  • 365 Days Quality Guarantee
  • Genuine Product Guarantee
  • 7*24 hours service quarantee

Quick Inquiry

Please submit RFQ for OPA227U or email to us: Email: [email protected], we will contact you in 12 hours.

Overview of OPA227U

The OPA227U is a precision operational amplifier (op-amp) that offers low offset voltage, low noise, and high precision performance. It is designed for use in applications requiring accurate signal amplification and conditioning.


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

  • V+: Non-Inverting Input
  • V-: Inverting Input
  • VCC+: Positive Power Supply
  • VCC-: Negative Power Supply
  • OUT: Output
  • N/C: No Connection

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the OPA227U op-amp for a visual representation.

Key Features

  • Precision Performance: The OPA227U offers high precision with low offset voltage and low input bias current.
  • Low Noise: With low noise specifications, this op-amp is suitable for applications requiring clean signal amplification.
  • Wide Bandwidth: The op-amp provides a wide bandwidth to support various signal processing requirements.
  • Low Power Consumption: Designed for efficiency, the OPA227U consumes low power, making it ideal for portable and low-power applications.
  • High Common-Mode Rejection Ratio (CMRR): Ensures accurate operation in environments with common-mode noise.

Note: For detailed technical specifications, please refer to the OPA227U datasheet.


  • Signal Conditioning: Ideal for precision signal conditioning in measurement and sensor applications.
  • Audio Amplification: Suitable for audio amplifiers and high-fidelity audio systems requiring accurate signal amplification.
  • Data Acquisition Systems: Used in data acquisition systems for precise signal processing and amplification.


The OPA227U is a high-precision operational amplifier that provides accurate amplification and conditioning of input signals. It is a reliable choice for applications demanding precision performance.

Usage Guide

  • Power Supply: Connect VCC+ and VCC- to the positive and negative power supplies, respectively.
  • Input Connections: Connect the non-inverting (V+) and inverting (V-) inputs according to the desired signal amplification requirements.
  • Output Handling: The output pin (OUT) provides the amplified signal with the configured gain.

Frequently Asked Questions

Q: Is the OPA227U ESD protected?
A: Yes, the OPA227U features ESD protection for robust operation in various environments.


For similar functionalities, consider these alternatives to the OPA227U:

  • OPA333: Another precision operational amplifier offering similar high precision and low noise performance.
  • LMP7721: High-precision op-amp with low offset and low noise characteristics suitable for precision applications.



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

Warranty & Returns

Warranty, Returns, and Additional Information

  • QA & Return Policy

    Parts Quality Guarantee: 365 days

    Returns for refund: within 90 days

    Returns for Exchange: within 90 days

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