Texas Instruments REF2940AIDB
REF2940AIDB variants from Texas Instruments
REF2940AIDB Overview
What changes between part numbers, and what to check before you lock the BOM — Voltage References.
Key Features
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 2 distinct suffix patternsExamples: ZT, ZR. Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Voltage References — 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 REF2940AIDB 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 |
|---|---|---|---|---|---|---|
| REF2940AIDBZT | Number of Outputs: 1 | Max Operating Temp: 125 | Min Operating Temp: -40 | Number of Pins: 3 | Terminal Position: DUAL | Jedec Package Code: R-PDSO-G3 | Texas Instruments | Active | Compliant | In Stock | |
| REF2940AIDBZR | 4.096-V, 100-ppm/°C, 50-µA in 3-pin SOT-23 package series (bandgap) voltage reference 3-SOT-23 -40 to 125 | Texas Instruments | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on REF2940AIDB map to package, grade, and reel options.
How to Choose the Right REF2940AIDB Voltage References
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 REF2940AIDB, 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 "REF2940AIDB" — include the full suffix (e.g. ZT, ZR). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for REF2940AIDB product family
Identity
Variant Parameters
Source REF2940AIDB 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 REF2940AIDB product family.