OPA345NA/3KAlternatives & Equivalent Parts
About OPA345NA/3K
OPA345NA/3K is a operational-amplifiers component manufactured by Texas Instruments. It comes in a SOT-23-5 package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | OPA345NA/3KSource | LMV321IDBVR | OPA345NA/250 |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | SOT-23-5 | SOT23 (5-Pin) | SOT23 (5-Pin) |
| Pin Count | 5 | 5 | 5 |
| Temperature Range | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 85.0°C |
| Price | $0.8730 | $0.1570 | $1.3134 |
| Electrical Parameters | |||
| Pbfree Code | Yes | Yes | Yes |
| YTEOL | 1 | 15 | 1 |
| Amplifier Type | OPERATIONAL AMPLIFIER | OPERATIONAL AMPLIFIER | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK | VOLTAGE-FEEDBACK | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00001 µA | 0.25 µA | 0.00001 µA |
| Bias Current-Max (IIB) @25C | 0.000001 µA | 0.25 µA | 0.000001 µA |
| Common-mode Reject Ratio-Min | 76 dB | 50 dB | 76 dB |
| Common-mode Reject Ratio-Nom | 92 dB | 65 dB | 92 dB |
| Frequency Compensation | YES (AVCL>=5) | YES | YES (AVCL>=5) |
| Input Offset Current-Max (IIO) | 0.00001 µA | 0.05 µA | 0.00001 µA |
| Input Offset Voltage-Max | 1000 µV | 7000 µV | 1000 µV |
| JESD-30 Code | R-PDSO-G5 | R-PDSO-G5 | R-PDSO-G5 |
| JESD-609 Code | e4 | e4 | e4 |
| Low-Bias | YES | NO | YES |
| Low-Offset | NO | NO | NO |
| Micropower | YES | YES | YES |
| Number of Functions | 1 | 1 | 1 |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 | TSOP5/6,.11,37 | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR | TR | TR |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 |
| Power | NO | NO | NO |
| Programmable Power | NO | NO | NO |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| Slew Rate-Nom | 2 V/us | 1 V/us | 2 V/us |
| Supply Current-Max | 0.25 mA | 0.25 mA | 0.25 mA |
| Supply Voltage Limit-Max | 7.5 V | 5.5 V | 7.5 V |
| Supply Voltage-Nom (Vsup) | 5.5 V | 2.7 V | 5.5 V |
| Surface Mount | YES | YES | YES |
| Technology | CMOS | BIPOLAR | CMOS |
| Temperature Grade | INDUSTRIAL | AUTOMOTIVE | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 0.95 mm | 0.95 mm | 0.95 mm |
| Terminal Position | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | 30 |
| Unity Gain BW-Nom | 3000 | 1000 | 3000 |
| Voltage Gain-Min | 31600 | 10000 | 31600 |
| Wideband | NO | NO | NO |
| Subcategory | — | Operational Amplifier | — |
| ## OPA345NA/250 Alternates Showing results | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
SOT-23-5, single-supply, rail-to-rail output; lower cost alternative for non-critical general-purpose amplification
Why Look for Alternatives?
Finding alternatives for OPA345NA/3K is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating OPA345NA/3K replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
Can't Find What You Need?
Our sourcing team can help find compatible alternatives for OPA345NA/3K. Get expert recommendations within 24 hours.
Request Alternatives for OPA345NA/3KFAQ
What is equivalent to OPA345NA/3K?
Known equivalents for OPA345NA/3K include LMV321IDBVR, OPA345NA/250. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of OPA345NA/3K?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify OPA345NA/3K alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.