INA166UA/2K5G4

Overview

The INA166UA/2K5G4 is a Texas Instruments microphone preamplifier featuring low noise and low distortion characteristics. It operates with a gain of 2000 V/V (66 dB). The device supports a supply voltage range from 36 V to 36 V, ensuring stable performance across its specified operating temperature range of -55°C to +125°C. Key electrical parameters include a common-mode rejection ratio of 100 dB, an input bias current of 12 uA, and an input offset voltage of 250 uV. It is housed in a SOIC-14 surface-mount package.

Feature Summary

• Designed for microphone preamplification applications with optimized low noise and low distortion performance.
• Provides high gain capability suitable for signal conditioning tasks requiring significant amplification.
• Operates reliably across an extended industrial temperature range for robust environmental stability.

Applications

• Microphone preamplifier circuits
• Low-noise signal conditioning systems
• Industrial audio interfaces

Procurement Notes

Verify the specific suffix G4 indicates lead-free compliance and RoHS standards as per manufacturer documentation. Confirm the /2K5 packaging designation corresponds to reel quantities when sourcing. Ensure the SOIC-14 footprint matches your PCB layout requirements. Cross-reference the full part number against official Texas Instruments databases to validate current production status and availability constraints before finalizing procurement plans.

Selection Notes

Select this component when application requirements demand high gain combined with low distortion specifications. Consider the wide supply voltage tolerance and extended temperature range for harsh environments. Evaluate the input bias current and offset voltage parameters against sensor interface needs. Verify that the SOIC-14 package size fits within the available board space constraints.

Part Context

This instrument belongs to the Texas Instruments amplifier integrated circuit family, specifically categorized under microphone preamplifiers. It serves as a specialized solution for audio and precision signal processing applications where maintaining signal integrity at high gains is critical. The device complements other instrumentation amplifiers by offering distinct low-noise characteristics tailored for transducer interfacing.

FAQ

What is the fixed gain configuration of the INA166UA/2K5G4?

The device features a fixed internal gain of 2000 V/V, which corresponds to approximately 66 dB.

Does the INA166UA support single-supply operation?

The provided specifications indicate a supply voltage range of 36 V to 36 V, suggesting specific dual-rail or high-voltage single-rail configurations rather than standard low-voltage single-supply operation.