INA133U/2K5

Overview

The INA133U/2K5 is a high-speed, precision difference amplifier manufactured by Texas Instruments. It features a gain bandwidth product of 1.5 MHz and a slew rate of 4.5 V/us. The device operates with a supply voltage range from 4.5 V to 36 V and draws an operating supply current of 950 uA. Key electrical specifications include a common mode rejection ratio of 80 dB and an input offset voltage of 450 uV. It is housed in an SOIC-14 package and supports an operating temperature range from -55 C to +125 C.

Feature Summary

• High-speed signal processing capability with 1.5 MHz gain bandwidth
• Precision differential amplification with low input offset voltage
• Wide single-supply operation supporting up to 36 V
• Robust thermal performance for extended industrial temperature ranges

Applications

• Industrial process control signal conditioning
• Medical equipment data acquisition systems
• Test and measurement instrumentation front ends

Procurement Notes

Verify the specific suffix /2K5 indicates tape and reel packaging configuration when ordering. Confirm the SOIC-14 package type matches the target PCB footprint requirements. Ensure the operating temperature range meets the environmental constraints of the final assembly. Cross-reference the manufacturer part number against the latest datasheet revision to confirm pinout compatibility.

Selection Notes

Select this component when high-speed differential signal conversion is required alongside wide supply voltage flexibility. The 1.5 MHz bandwidth suits applications needing faster response than standard precision amplifiers. Consider the 950 uA supply current for power budgeting in battery-operated or thermally constrained designs. Evaluate the 80 dB CMRR against system noise immunity requirements.

Part Context

This device belongs to the INA133 family of difference amplifiers designed for high-performance analog signal processing. It integrates precision matched resistors to provide a fixed unity gain configuration without external components. The series is engineered for applications requiring accurate subtraction of signals in noisy environments while maintaining high speed and wide dynamic range capabilities.

Replacement Considerations

INA133U

FAQ

What is the fixed gain configuration of the INA133U/2K5?

The INA133U/2K5 is configured as a unity gain difference amplifier, providing a fixed gain of 1 V/V.

Does the INA133U/2K5 require external components for basic operation?

No, the internal resistor network provides the necessary gain setting, eliminating the need for external precision resistors.