INA157UAG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
INA157UAG4 is a precision single-channel difference amplifier operating from dual ±4 V to ±18 V supplies in an 8-pin SOIC package. It provides unity gain differential signal conditioning with high common-mode rejection, ideal for industrial measurement and audio signal processing applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- INA157UAG4 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
- Single-channel difference amplifier with unity gain and precision resistor matching
- Wide dual supply range from ±4 V to ±18 V for industrial and audio designs
- High common-mode rejection ratio (CMRR) for accurate differential signal extraction
- 8-pin SOIC package enabling compact PCB integration on standard SMT lines
- Designed for bipolar signal conditioning where common-mode voltages must be rejected
- Suitable for current sensing bridges and balanced audio line receivers
Applications
INA157UAG4 is used in industrial process control, data acquisition systems, and precision instrumentation where differential signals must be extracted from high common-mode voltage environments. Its wide supply range and precision resistor network make it well-suited for Wheatstone bridge signal conditioning, balanced audio line receivers, and motor current measurement front-ends operating from dual ±15 V rails.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Neg Supply Voltage-Max (Vsup) | -18 V |
| Neg Supply Voltage-Min (Vsup) | -4 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 18V |
| Supply Voltage-Min (Vsup) | 4V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for INA157UAG4:
Frequently Asked Questions
What dual supply voltage range does INA157UAG4 support for industrial instrumentation designs?
INA157UAG4 operates from dual supplies ranging from ±4 V minimum to ±18 V maximum, with a nominal ±15 V typical operating condition, covering standard analog instrumentation rails commonly found in industrial process control and test equipment.
How does INA157UAG4 reject common-mode noise in a Wheatstone bridge measurement circuit?
The difference amplifier topology uses internally matched resistors to achieve a high CMRR, effectively canceling common-mode voltages up to the supply rail limits while amplifying only the differential bridge output signal, improving measurement accuracy in noisy industrial environments.
Is INA157UAG4 suitable for balanced audio line receiver applications at ±15 V?
Yes. The ±18 V supply maximum and unity differential gain of INA157UAG4 make it compatible with professional balanced audio equipment operating at ±15 V, providing the CMRR needed to reject cable-induced interference on 600-ohm or 10 kohm balanced lines.
What is the pin count and package body of INA157UAG4 for PCB layout planning?
INA157UAG4 comes in an 8-pin SOIC package with a plastic/epoxy body, providing 8 pins in a standard 1.27 mm pitch SMT footprint that is compatible with automated pick-and-place assembly and readily available PCB land patterns.
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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.
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