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Operational/Differential Amplifier Texas Instruments INA145UA in SOIC-8 package

Operational/Differential Amplifier Texas Instruments INA145UA in SOIC-8 package
Operational/Differential Amplifier Texas Instruments INA145UA in SOIC-8 package
R318
Texas Instruments INA145UA is a linear integrated circuit that functions as an operational and differential amplifier in an SOIC-8 package. It is designed for precision differential signal amplification and analogue signal conditioning in applications that require stable gain and accurate input hand... Read More
Stock Out Of Stock Code 2245573 Brand TEXAS INSTRUMENTS Model INA145UA Warranty 2 Years

Shipping & Returns

Texas Instruments INA145UA is a linear integrated circuit that functions as an operational and differential amplifier in an SOIC-8 package. It is designed for precision differential signal amplification and analogue signal conditioning in applications that require stable gain and accurate input handling. The device integrates differential amplifier topology suitable for sensor interfaces, instrumentation, and data acquisition front-ends where conversion of small differential signals and suppression of common-mode voltages are important.

Advantages

The INA145UA offers precision differential amplification with predictable behaviour across typical operating conditions. Its SOIC-8 surface-mount package provides a compact footprint for PCB designs while maintaining thermal performance suitable for standard industrial and commercial applications. The amplifier’s architecture supports accurate handling of differential inputs and helps reduce the influence of common-mode signals, simplifying front-end design for sensors and measurement circuits.

Suitable for

  • Sensor signal conditioning (strain gauges, bridge sensors, thermocouples with differential stages)
  • Instrumentation amplifiers and medical or laboratory measurement front-ends
  • Data acquisition and ADC input buffering with differential sources
  • Precision difference measurement and low-level signal amplification

Key specifications

  • Function: Operational and differential amplifier for precision analogue signal processing
  • Package type: SOIC-8 surface-mount package suitable for PCB assembly
  • Topology: Differential input architecture for rejection of common-mode voltages
  • Application area: Sensor interfaces, instrumentation, data acquisition front-ends
  • Typical use: Differential gain stages and input conditioning for ADCs and measurement systems

How to use

Integrate the INA145UA into the analogue front-end on a PCB following recommended layout practices for differential amplifiers: place bypass capacitors close to the power pins, route differential input traces as matched pairs, and keep noisy digital traces away from the amplifier and inputs. Configure external resistors and any required offset or gain network according to the circuit design to achieve the desired amplification and common-mode rejection. Verify supply voltage and input common-mode range in the system to ensure proper linear operation.

Recommendations

For reliable performance, use low-noise, precision resistors when setting gain, provide adequate decoupling on the supply rails, and ensure symmetric routing of differential inputs. In measurement systems, place the INA145UA close to the sensor or source to minimize interference and preserve signal integrity.
Key Highlights
  • Sensor signal conditioning (strain gauges, bridge sensors, thermocouples with differential stages)
  • Instrumentation amplifiers and medical or laboratory measurement front-ends
  • Data acquisition and ADC input buffering with differential sources
  • Precision difference measurement and low-level signal amplification
  • Function: Operational and differential amplifier for precision analogue signal processing
  • Package type: SOIC-8 surface-mount package suitable for PCB assembly
  • Topology: Differential input architecture for rejection of common-mode voltages
  • Application area: Sensor interfaces, instrumentation, data acquisition front-ends
  • Typical use: Differential gain stages and input conditioning for ADCs and measurement systems
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