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OPA228 - Low Noise Operational Amplifier

Download the OPA228 datasheet PDF. This datasheet also covers the OPA227 variant, as both devices belong to the same low noise operational amplifier family and are provided as variant models within a single manufacturer datasheet.

General Description

The OPAx227 and OPAx228 series operational amplifiers combine low noise and wide bandwidth with high precision to make them an excellent choice for applications requiring both ac and precision dc performance.

Key Features

  • Low noise: 3 nV/√Hz.
  • Wide bandwidth:.
  • OPA227: 8 MHz, 2.3 V/μs.
  • OPA228: 33 MHz, 10 V/μs.
  • Settling time: 5 μs.
  • High CMRR: 138 dB.
  • High open-loop gain: 160 dB.
  • Low input bias current: 10 nA maximum.
  • Low offset voltage: 75 µV maximum.
  • Wide supply range: ±2.5 V to ±18 V.
  • Single, dual, and quad versions 2.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OPA227-etcTI.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
OPA228 High Precision / Low Noise OPERATIONAL AMPLIFIERS Burr-Brown
OPA2211 Precision Operational Amplifier Burr-Brown
OPA2227 High Precision / Low Noise OPERATIONAL AMPLIFIERS Burr-Brown
OPA2228 High Precision / Low Noise OPERATIONAL AMPLIFIERS Burr-Brown
OPA2234 SINGLE-SUPPLY OPERATIONAL AMPLIFIERS Burr-Brown

Other Datasheets by Texas Instruments

Part Number Description
OPA2202 36-V Operational Amplifier
OPA2205 Op Amps
OPA2206 Op Amps
OPA2209 36-V Operational Amplifier
OPA2210 36-V operational amplifier

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
OPA227, OPA2227, OPA4227 OPA228, OPA2228, OPA4228 SBOS110C – MAY 1998 – REVISED MARCH 2023 OPAx227, OPAx228 High-Precision, Low-Noise Operational Amplifiers 1 Features • Low noise: 3 nV/√Hz • Wide bandwidth: – OPA227: 8 MHz, 2.3 V/μs – OPA228: 33 MHz, 10 V/μs • Settling time: 5 μs • High CMRR: 138 dB • High open-loop gain: 160 dB • Low input bias current: 10 nA maximum • Low offset voltage: 75 µV maximum • Wide supply range: ±2.5 V to ±18 V • Single, dual, and quad versions 2 Applications • Data acquisition (DAQ) • Condition monitoring sensor • Spectrum analyzer • Professional audio amplifier (rack mount) • Industrial AC-DC 100k Input-Referred Voltage Noise (nV/√Hz) Input-Referred Current Noise (fA/√Hz) 10k 1k Current Noise 100 10 Voltage Noise 1 0.