OPA2228UA Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The OPA2228UA is a dual, wide-bandwidth, high-precision, low-noise operational amplifier from Texas Instruments. It features an exceptional 138dB nominal CMRR, 0.01µA maximum bias current, and voltage-feedback architecture in an 8-pin SOIC package. Available with worldwide shipping at competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OPA2228UA Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.8377(MOQ 10)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of OPA2228UA?
- Ultra-high CMRR of 138dB nominal (120dB minimum) delivers exceptional common-mode noise rejection for precision measurement and instrumentation applications
- Extremely low input bias current of 0.01µA maximum enables accurate signal conditioning of high-impedance sources such as sensors and electrodes
- Dual-channel design in a compact 8-pin SOIC package provides two matched high-precision op-amps for differential signal processing with minimal board space
What is OPA2228UA used for?
The OPA2228UA is designed for high-precision instrumentation, medical measurement equipment, and scientific data acquisition systems requiring excellent common-mode rejection and low noise amplification of weak signals. Its ultra-low bias current and high CMRR make it ideal for bridged sensor interfaces, biomedical signal amplifiers, and precision differential amplifiers where signal integrity is paramount. It is also used in audio preamplifiers, strain gauge conditioning, and test and measurement equipment demanding wide bandwidth and low distortion dual op-amp performance.
What are the specifications of OPA2228UA?
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 15 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.01 µA |
| Bias Current-Max (IIB) @25C | 0.01 µA |
| Common-mode Reject Ratio-Min | 120dB |
| Common-mode Reject Ratio-Nom | 138dB |
| Frequency Compensation | YES (AVCL>=5) |
| Input Offset Current-Max (IIO) | 0.01 µA |
| Input Offset Voltage-Max | 75 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 11V/us |
| Subcategory | Operational Amplifier |
| Supply Current-Max | 7.6mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 33000 |
| Voltage Gain-Min | 3980000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Malaysia |
Where can I find the OPA2228UA datasheet?
OPA2228UA Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA2228UA?
Compatible alternatives and drop-in replacements for OPA2228UA:
Frequently Asked Questions
What is the CMRR of the OPA2228UA?
The OPA2228UA has a minimum CMRR of 120dB and a nominal CMRR of 138dB, providing outstanding common-mode noise rejection that is essential for precision differential amplifier applications in instrumentation, medical, and measurement systems.
How many channels does the OPA2228UA have?
The OPA2228UA is a dual op-amp, providing two independent high-precision, low-noise operational amplifier channels in a single 8-pin SOIC package, making it ideal for differential signal conditioning and two-channel precision amplification.
What is the input bias current of the OPA2228UA?
The OPA2228UA has a maximum input bias current of 0.01µA (10nA) at 25°C, which is extremely low and allows it to accurately amplify signals from high-impedance sources such as pH electrodes, photodiodes, and piezoelectric sensors without significant offset errors.
What package does the OPA2228UA use?
The OPA2228UA is housed in an 8-pin SOIC (Small Outline IC) package, a standard surface-mount package widely used in precision analog designs, providing a balance of compact size and ease of PCB assembly for benchtop and portable instrumentation.
What are typical applications for the OPA2228UA?
Typical applications include precision instrumentation amplifiers, medical ECG and biomedical signal conditioning, strain gauge bridge amplifiers, audio preamplifiers, precision filters, scientific data acquisition front-ends, and any high-performance signal chain requiring dual low-noise, high-CMRR operational amplifiers.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $4.9300 | $49.30 |
| 25+ | $4.4100 | $110.25 |
| 50+ | $4.2600 | $213.00 |
| 525+ | $4.0403 | $2121.14 |
| 1050+ | $3.9403 | $4137.32 |
| 2550+ | $3.8377 | $9786.16 |
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