Texas Instruments

INA126PA

INA126PA Description

The INA126PA from Texas Instruments is a precision instrumentation amplifier designed for low-power, high-accuracy signal conditioning applications. Packaged in an 8-pin DIP (Through Hole), this IC integrates a single instrumentation amplifier circuit with exceptional performance characteristics. Operating over a wide supply voltage range (2.7V to 36V), it is optimized for battery-powered and industrial systems requiring robust signal amplification. With a low input bias current (10 nA) and minimal input offset voltage (150 µV), the INA126PA ensures high signal integrity, making it ideal for sensitive measurements.

INA126PA Features

• Low Power Consumption: Draws only 175µA supply current, ideal for portable and energy-efficient designs.
• High CMRR & Precision: Excellent common-mode rejection minimizes noise in differential signal applications.
• Wide Bandwidth & Slew Rate: 200 kHz bandwidth and 0.4V/µs slew rate enable accurate dynamic signal processing.
• Robust Supply Range: Supports 2.7V to 36V, accommodating diverse power sources.
• Low Input Bias Current (10 nA): Reduces errors in high-impedance sensor interfaces.
• ROHS3 Compliant & REACH Unaffected: Meets environmental and regulatory standards.

INA126PA Applications

The INA126PA excels in precision measurement systems, including:

• Medical Instrumentation: ECG amplifiers, patient monitoring.
• Industrial Sensors: Strain gauges, bridge amplifiers, pressure transducers.
• Portable Data Loggers: Low-power signal conditioning for battery-operated devices.
• Automotive Systems: Sensor signal amplification in harsh environments.
• Test & Measurement Equipment: High-accuracy signal acquisition.

Conclusion of INA126PA

The INA126PA stands out as a high-precision, low-power instrumentation amplifier with broad applicability in medical, industrial, and portable electronics. Its wide supply range, low noise, and high CMRR make it superior to generic op-amps for differential signal amplification. Although marked Obsolete, its performance remains relevant for legacy designs or systems requiring reliable through-hole components. Engineers seeking a robust, precision amplifier for sensor interfaces or low-power systems will find the INA126PA a dependable solution.