INA2126UG4

Overview

The INA2126UG4 is a dual micropower instrumentation amplifier manufactured by Texas Instruments. It features a 3dB bandwidth of 200 kHz and operates on supply voltages ranging from 2.7 V to 36 V, or ±1.35 V to ±18 V. The device draws a maximum power supply current of 175 µA per channel. Key electrical specifications include a maximum input offset voltage of 250 µV, a minimum common-mode rejection ratio (CMRR) of 83 dB, and an input bias current of 25 nA. It utilizes a 16-pin Small Outline Package (SOIC) with a width of 3.91 mm.

Feature Summary

• Dual-channel architecture providing two independent instrumentation amplifiers in a single package for space-constrained designs.
• Micropower operation capability with a typical supply current of 175 µA per channel, suitable for battery-powered applications.
• High precision performance characterized by low input offset voltage and high common-mode rejection ratio.

Applications

• Battery-operated measurement systems requiring low power consumption
• Industrial process control signal conditioning
• Medical instrumentation front-ends

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free status and RoHS compliance as per Texas Instruments documentation. Confirm the package type corresponds to the 16-pin SOIC variant. Ensure the order quantity matches the manufacturer's standard tube packaging requirements. Check for any recent Product Change Notifications that may affect pinout or electrical characteristics.

Selection Notes

Select this component when dual channels are required within a single footprint to minimize board space. The wide supply voltage range supports both single and dual supply configurations. Verify that the 200 kHz bandwidth meets the signal frequency requirements. Consider the 250 µV offset voltage limit for DC accuracy needs. Compare against the single-channel INA126 if only one amplifier is needed.

Part Context

The INA2126 belongs to the INA12x family of micropower instrumentation amplifiers from Texas Instruments. This family includes single-channel variants like the INA126 and dual-channel versions such as the INA2126. These devices are designed for general-purpose precision applications where low power and high accuracy are critical. The UG4 suffix denotes the specific package and environmental compliance details.

FAQ

What is the difference between INA2126 and INA126?

The INA2126 contains two independent instrumentation amplifier channels, whereas the INA126 contains only one channel. Both share similar electrical characteristics and micropower specifications.

Does the INA2126 support rail-to-rail output?

No, the INA2126 does not feature rail-to-rail output. The output swing typically extends to within approximately 1.5 V of the supply rails.