INA131APG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The INA131APG4 is a precision instrumentation amplifier from Texas Instruments with a fixed gain of 100. It delivers 106 dB CMRR, 125 µV max offset voltage, and 70 kHz bandwidth in a DIP-8 package. From competitive pricing with in-stock availability and worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- INA131APG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed gain of 100 with 106 dB minimum CMRR for exceptional common-mode noise rejection
- Ultra-low input offset voltage of 125 µV max ensuring precise signal amplification
- Low input bias current of 5 nA max suitable for high-impedance sensor interfaces
- Wide supply voltage range up to ±18 V for versatile power configurations
Applications
The INA131APG4 is well-suited for precision sensor signal conditioning in industrial measurement systems, medical instrumentation, and data acquisition applications. Its fixed gain of 100 and high CMRR make it ideal for amplifying small differential signals from bridge sensors, thermocouples, and strain gauges. It is also used in portable medical devices and process control equipment where low noise and accurate amplification are critical.
Specifications
| YTEOL | 0 |
| Amplifier Type | INSTRUMENTATION AMPLIFIER |
| Average Bias Current-Max (IIB) | 0.005 µA |
| Bandwidth (3dB)-Nom | 0.07MHz |
| Common-mode Reject Ratio-Min | 106dB |
| Input Offset Current-Max (IIO) | 0.005 µA |
| Input Offset Voltage-Max | 125 µV |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e4 |
| 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 | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 0.7V/us |
| Supply Current-Max | 3mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Voltage Gain-Nom | 100 |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for INA131APG4:
Amplifier, 1 Func, 50uV Offset-Max, 0.07MHz Band Width, BIPolar, PDIP8
Frequently Asked Questions
What is the gain of the INA131APG4?
The INA131APG4 has a fixed gain of 100 (40 dB), making it ideal for applications that require a precise, stable amplification factor without external gain-setting resistors. This simplifies circuit design and reduces component count.
What is the common-mode rejection ratio (CMRR) of the INA131APG4?
The INA131APG4 provides a minimum CMRR of 106 dB, which allows it to effectively reject common-mode noise and interference. This makes it suitable for industrial environments and medical instrumentation where noise rejection is critical.
What package does the INA131APG4 come in?
The INA131APG4 comes in a standard 8-pin DIP (Dual In-Line Package) package, which is convenient for through-hole prototyping and breadboarding. The DIP-8 form factor is widely supported and easy to solder manually.
What are typical applications for the INA131APG4?
Typical applications include bridge sensor amplification, thermocouple signal conditioning, medical instrumentation, data acquisition front ends, and industrial process control. The high CMRR and low offset make it ideal for precision measurements in noisy environments.
What supply voltage does the INA131APG4 support?
The INA131APG4 supports a negative supply voltage up to -18 V and is designed for dual-supply operation. This wide supply range allows it to be used in various analog signal processing systems, including those requiring rail-to-rail signal handling.
Related Guides
TPS613222ADBVR Boost Converter Design Guide: Battery-Powered 3.3 V Rail
Design a stable 3.3 V or 5 V boost rail with the TPS613222ADBVR: input/output capacitor sizing, inductor selection, and low-EMI PCB layout for portable battery-powered devices.
May 24, 2026
OPA4277MDTEP Precision Instrumentation Amp Design Guide
Circuit techniques for OPA4277MDTEP precision op-amp: instrumentation amp front-ends, low-side current sensing, photodiode TIA, and thermocouple amplifiers.
May 24, 2026
CDCE913PWR Programmable Clock Synthesizer Design Guide
Complete design guide for the CDCE913PWR clock synthesizer: VCO range, I2C programming, decoupling, and layout best practices for embedded systems.
May 22, 2026
OPA4277MDTEP Precision Quad Op-Amp Selection Guide: How to Choose the Right Variant
How to choose the right OPA4277 quad precision op-amp variant—OPA4277MDTEP vs UA—covering offset voltage, CMRR, supply range, and temperature grade.
May 22, 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.
More from Texas Instruments
ISO7840FDW
Small Outline Packages
Integrated Circuit
ISO7820FDWR
Small Outline Packages
Integrated Circuit
TPS74510PQWDRBRQ1
Small Outline No-lead
Integrated Circuit
ISO7763FQDBQRQ1
Small Outline Packages
Integrated Circuit
LM22671MRE-ADJNOPB
Small Outline Packages
Integrated Circuit
JFE150DCKT
SOT23 (5-Pin)
Integrated Circuit
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.”