INA129UAlternatives & Equivalent Parts
About INA129U
INA129U is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | INA129USource | INA129UA | INA129UG4 | INA2128U | INA128UA | INA128UG4 | INA2128UA |
|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Small Outline Packages | SOIC-8 | Small Outline Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages | Small Outline Packages |
| Pin Count | 8 | 8 | 8 | 16 | 8 | 8 | 16 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $3.6672 | $6.2500 | $3.6672 | $11.0396 | $7.1600 | $10.1712 | $9.6000 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | OBSOLETE | ACTIVE | ACTIVE | OBSOLETE | ACTIVE |
| Electrical Parameters | |||||||
| Pbfree Code | Yes | — | — | Yes | Yes | Yes | Yes |
| YTEOL | 15 | — | 0 | 15 | 15 | 0 | 15 |
| Amplifier Type | INSTRUMENTATION AMPLIFIER | — | INSTRUMENTATION AMPLIFIER | INSTRUMENTATION AMPLIFIER | INSTRUMENTATION AMPLIFIER | INSTRUMENTATION AMPLIFIER | INSTRUMENTATION AMPLIFIER |
| Average Bias Current-Max (IIB) | 0.005 µA | — | 0.005 µA | 0.005 µA | 0.01 µA | 0.005 µA | 0.01 µA |
| Bandwidth (3dB)-Nom | 1.3 MHz | — | 1.3 MHz | 1.3 MHz | 1.3 MHz | 1.3 MHz | 1.3 MHz |
| Bias Current-Max (IIB) @25C | 0.005 µA | — | — | 0.005 µA | 0.005 µA | 0.005 µA | 0.005 µA |
| Common-mode Reject Ratio-Min | 120 dB | — | 80 dB | 120 dB | 120 dB | 120 dB | 120 dB |
| Input Offset Current-Max (IIO) | 0.005 µA | — | 0.005 µA | 0.005 µA | 0.01 µA | 0.005 µA | 0.01 µA |
| Input Offset Voltage-Max | 50 µV | — | 550 µV | 50 µV | 50 µV | 50 µV | 50 µV |
| JESD-30 Code | R-PDSO-G8 | — | R-PDSO-G8 | R-PDSO-G16 | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G16 |
| JESD-609 Code | e4 | — | e4 | e4 | e4 | e4 | e4 |
| Neg Supply Voltage Limit-Max | -18 V | — | -18 V | -18 V | -18 V | -18 V | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V | — | -15 V | -15 V | -15 V | -15 V | -15 V |
| Non-linearity-Max | 0.002% | — | 0.002% | 0.002% | 0.004% | 0.002% | 0.004% |
| Number of Functions | 1 | — | 1 | 2 | 1 | 1 | 2 |
| Package Body Material | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 | — | SOP8,.25 | SOP16,.4 | SOP8,.25 | SOP8,.25 | SOP16,.4 |
| Package Shape | RECTANGULAR | — | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | — | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE |
| Packing Method | TUBE | — | — | TUBE | TUBE | TUBE | TUBE |
| Peak Reflow Temperature (Cel) | 260 | — | 260 | 260 | 260 | 260 | 260 |
| Qualification Status | Not Qualified | — | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Slew Rate-Nom | 4 V/us | — | 4 V/us | 1.2 V/us | 4 V/us | 4 V/us | 1.2 V/us |
| Subcategory | Instrumentation Amplifier | — | — | Instrumentation Amplifier | Instrumentation Amplifier | Instrumentation Amplifier | Instrumentation Amplifier |
| Supply Current-Max | 0.75 mA | — | 0.75 mA | 1.5 mA | 0.75 mA | 0.75 mA | 1.5 mA |
| Supply Voltage Limit-Max | 18 V | — | 18 V | 18 V | 18 V | 18 V | 18 V |
| Supply Voltage-Nom (Vsup) | 15 V | — | 15 V | 15 V | 15 V | 15 V | 15 V |
| Surface Mount | YES | — | YES | YES | YES | YES | YES |
| Technology | BIPOLAR | — | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR |
| Temperature Grade | INDUSTRIAL | — | INDUSTRIAL | INDUSTRIAL | AUTOMOTIVE | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | — | NICKEL PALLADIUM GOLD | Nickel/Palladium/Gold (Ni/Pd/Au) | 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 | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | — | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | — | DUAL | DUAL | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | — | 30 | 30 | 30 | 30 | 30 |
| Voltage Gain-Max | 10000 | — | 10000 | 10000 | 10000 | 10000 | 10000 |
| Voltage Gain-Min | 1 | — | 1 | 1 | 1 | 1 | 1 |
| Voltage Gain-Nom | 10 | — | 10 | — | 10 | 10 | — |
| supply_voltage | — | +/-2.25V to +/-18V | — | — | — | — | — |
| gain_range | — | 1 to 10000 | — | — | — | — | — |
| offset_voltage | — | 25uV max | — | — | — | — | — |
| cmrr | — | 100dB min at G=10 | — | — | — | — | — |
| quiescent_current | — | 1mA typical | — | — | — | — | — |
| bandwidth | — | 1MHz at G=1 | — | — | — | — | — |
| operating_temperature | — | -40C to +85C | — | — | — | — | — |
| ## INA128UA Alternates Showing results | — | — | — | — | Image | — | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 6 alternatives for INA129U — response within 24 hours.
Quick Links
Instrumentation Amplifier, 1 Func, 50uV Offset-Max, 1.3MHz Band Width, BIPolar, PDSO8
Instrumentation Amplifier, 1 Func, 550uV Offset-Max, 1.3MHz Band Width, BIPolar, PDSO8
Instrumentation Amplifier, 2 Func, 50uV Offset-Max, 1.3MHz Band Width, BIPolar, PDSO16
Instrumentation Amplifier, 1 Func, 50uV Offset-Max, 1.3MHz Band Width, BIPolar, PDSO8
Instrumentation Amplifier, 1 Func, 50uV Offset-Max, 1.3MHz Band Width, BIPolar, PDSO8
Why Look for Alternatives?
Finding alternatives for INA129U 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 INA129U 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.
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FAQ
What is equivalent to INA129U?
Known equivalents for INA129U include INA129UA, INA129UG4, INA2128U. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of INA129U?
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 INA129U 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.