INA2141U

Overview

The INA2141U is a dual low-power instrumentation amplifier manufactured by Texas Instruments. It features a fixed gain of 10 V/V or 100 V/V and operates within a supply voltage range of 4.5 V to 36 V. Key electrical specifications include a 200 kHz bandwidth, a slew rate of 4 V/us, and a common-mode rejection ratio (CMRR) of 117 dB. The device draws 750 uA of operating current and exhibits an input bias current of 5 nA with an input offset voltage of 50 uV. It is housed in a 16-SOIC package and supports an operating temperature range from -40 C to +85 C.

Feature Summary

• Dual-channel architecture providing two independent instrumentation amplifiers in a single package for space-constrained designs.
• Low power consumption characteristics suitable for battery-operated applications with minimal energy usage.
• High precision performance defined by low input offset voltage and high common-mode rejection capabilities.

Applications

• Industrial process control signal conditioning
• Medical equipment sensor interfaces
• Data acquisition systems

Procurement Notes

Verify the specific gain configuration required, as the part may be available in variants offering different fixed gains. Confirm the package type matches the design requirements, typically SOIC-16. Check moisture sensitivity levels and storage conditions prior to assembly. Ensure the operating temperature range aligns with the intended application environment. Validate RoHS compliance status if required by regional regulations.

Selection Notes

Select this component when a dual instrumentation amplifier with low power consumption is needed. Consider the fixed gain options against external resistor configurations found in other models. Evaluate the 200 kHz bandwidth against signal frequency requirements. Compare the CMRR and offset voltage specifications with system accuracy needs. Assess the supply voltage range compatibility with existing power rails.

Part Context

The INA2141U belongs to the INA2141 series of instrumentation amplifiers from Texas Instruments. This series focuses on providing precision amplification with low power consumption. The dual-channel variant allows for efficient handling of differential signals in compact form factors. It complements single-channel counterparts by offering integrated solutions for multi-sensor applications.

FAQ

What are the fixed gain options for the INA2141U?

The INA2141U is available with fixed gains of 10 V/V and 100 V/V.

What is the maximum supply voltage for this device?

The maximum supply voltage for the INA2141U is 36 V.