INA125U Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
INA125U is a precision instrumentation amplifier with 0.25mV offset voltage, 100dB CMRR, 0.15MHz bandwidth, and integrated voltage reference. Ideal for bridge sensor, thermocouple, and medical measurement applications. From $4.34, in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- INA125U Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.3429(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 100dB minimum CMRR for superior common-mode noise rejection in harsh environments
- Integrated precision voltage reference eliminates external components in bridge sensor designs
- Ultra-low 0.25mV input offset voltage ensures accurate signal amplification
- Wide supply voltage range supports flexible system power architectures
- 16-Pin SOIC (Small Outline) package enables compact PCB layouts
Applications
The INA125U is widely used in precision measurement systems such as Wheatstone bridge sensors for pressure, strain, and force transducers. It is also employed in thermocouple signal conditioning circuits, medical instrumentation, and industrial process control where high CMRR and low offset are critical. Its integrated reference voltage makes it especially suited for single-supply data acquisition designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Amplifier Type | INSTRUMENTATION AMPLIFIER |
| Average Bias Current-Max (IIB) | 0.025 µA |
| Bandwidth (3dB)-Nom | 0.15MHz |
| Bias Current-Max (IIB) @25C | 0.025 µA |
| Common-mode Reject Ratio-Min | 100dB |
| Input Offset Current-Max (IIO) | 0.0000025 µA |
| Input Offset Voltage-Max | 250 µV |
| JESD-30 Code | R-PDSO-G16 |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Non-linearity-Max | 0.004% |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 0.2V/us |
| Supply Current-Max | 0.525mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Gain-Max | 10000 |
| Voltage Gain-Min | 4 |
| Voltage Gain-Nom | 10 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for INA125U:
Amplifier, 1 Func, 250uV Offset-Max, 0.15MHz Band Width, CMOS, PDSO16
Frequently Asked Questions
What is the input offset voltage of the INA125U?
The INA125U has a maximum input offset voltage of 250 µV (0.25mV), making it suitable for precision instrumentation applications where signal accuracy is critical.
What applications is the INA125U designed for?
The INA125U is designed for bridge sensor amplification (pressure, strain, load cells), thermocouple signal conditioning, medical instrumentation, and industrial data acquisition systems requiring high accuracy and low noise.
What is the CMRR specification of the INA125U?
The INA125U features a minimum CMRR of 100dB (typical 78dB in the product description), ensuring excellent rejection of common-mode interference in noisy industrial or medical environments.
What package does the INA125U come in and where can I buy it?
The INA125U comes in a 16-Pin SOIC (Small Outline Integrated Circuit) package. It is available from FindMyChip starting at $4.34, with worldwide shipping and fast quote turnaround.
Related Guides
How to Choose a 3528 SMD Indicator LED for Blue Status Lighting: Selection Guide
A practical 3528 SMD indicator LED selection guide using 150141BS73100 and related Wurth 150141 variants for blue status lighting.
Jul 5, 2026
BAS70KFILM Design Guide for Low-Leakage Signal Clamping and RF Detector Inputs
Practical BAS70KFILM design guidance for signal clamps, RF detector inputs, leakage control, capacitance, layout, and sourcing alternatives.
Jul 5, 2026
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $10.8573 | $10.86 |
| 10+ | $6.3100 | $63.10 |
| 25+ | $5.8200 | $145.50 |
| 38+ | $4.7048 | $178.78 |
| 107+ | $4.3429 | $464.69 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”