Texas Instruments OPA228UA
OPA228UA variants from Texas Instruments
OPA228UA Overview
What changes between part numbers, and what to check before you lock the BOM — Microcontrollers.
OPA228UA is a Texas Instruments order-code family — not a single orderable MPN. This page lists 2 variants that share the same core device but differ in suffix fields (package, grade, reel/tube, electrical bin, etc.). Pick the exact full part number; substituting within the family without checking the datasheet often causes assembly or spec mismatches.
33MHz Op Amp, 3nV/√Hz, 120dB CMRR, 200uV Vos, 18V, 8-SOIC Other listed variants describe: 33MHz Op Amp, 3nV/Hz, 120dB CMRR, 18V, 8-SOIC.
Example MPNs: OPA228UA, OPA228UA/2K5.
Key Features
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
Target Applications
- Microcontrollers — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 2 OPA228UA part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|
| OPA228UA | 33MHz Op Amp, 3nV/√Hz, 120dB CMRR, 200uV Vos, 18V, 8-SOIC | Texas Instruments | Active | Compliant | In Stock | |
| OPA228UA/2K5 | 33MHz Op Amp, 3nV/Hz, 120dB CMRR, 18V, 8-SOIC | Texas Instruments | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on OPA228UA map to package, grade, and reel options.
OPA228UA uses a shared prefix; characters after the prefix encode orderable options. Two lines with the same prefix are not drop-in replacements unless the differing columns match your need.
Suffixes seen here: 2K5.
Full MPN examples: OPA228UA/2K5.
Tip: photograph or copy the reel label — reel diameter, QTY per reel, and moisture sensitivity level (MSL) are often suffix-driven and won't show in the schematic.
How to Choose the Right OPA228UA Microcontrollers
Match the footprint first
Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.
Electrical headroom
Compare voltage and current columns in the variant table. For OPA228UA, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "OPA228UA" — include the full suffix (e.g. 2K5). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for OPA228UA product family
Identity
Variant Parameters
Source OPA228UA with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 2 ordering variants from Texas Instruments. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the OPA228UA product family.