TPA5581U-S5TR

Instrumentation, Op Amps, Buffer Amps Overview

The TPA5581U-S5TR is a single-channel zero-drift operational amplifier manufactured by 3PEAK, housed in an SOT23-5 package. It operates on a supply voltage ranging from 2.7 V to 5.5 V. Key electrical specifications include a maximum input offset voltage of ±20 μV and an offset voltage drift of ±0.01 µV/°C. The device features a gain-bandwidth product of 15 MHz and a slew rate of 4.9 V/μs. Quiescent current per amplifier is typically 1 mA. Input noise density is 10 nV/√Hz at 1 kHz, with low-frequency noise (0.1 Hz to 10 Hz) specified at 0.2 μVPP. The component supports rail-to-rail input and output capabilities.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Zero-drift architecture utilizing auto-calibration techniques for minimal offset voltage and drift
• Rail-to-rail input and output stages extending beyond supply rails
• High bandwidth and fast transient response suitable for precision applications
• Low-noise performance with suppressed 1/f noise characteristics

Instrumentation, Op Amps, Buffer Amps Applications

• Server power supply systems
• Battery current sensing circuits
• Precision signal conditioning
• Temperature transmitters
• Medical instrumentation

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'S5TR' corresponds to the SOT23-5 tape and reel packaging configuration as defined in the manufacturer's order information table. Confirm that the part number matches the production status listed in the datasheet revision history. Ensure compatibility with the required operating temperature range of -40°C to +125°C for the intended application environment.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high precision and stability over temperature are required without the need for external chopper stabilization circuitry. The zero-drift technology eliminates the need for periodic calibration in many applications. Consider the 15 MHz bandwidth and 4.9 V/μs slew rate for signal integrity requirements. Note that the shutdown function is not available in the standard TPA5581U variant; the TPA5581N series must be selected if power-down capability is necessary.

Instrumentation, Op Amps, Buffer Amps Part Context

The TPA5581U-S5TR belongs to the TPA558x family of zero-drift amplifiers designed for high-performance analog signal processing. This family includes dual-channel variants like the TPA5582 and shutdown-capable versions like the TPA5581N. The TPA5581U specifically denotes the single-channel version in the SOT23-5 package, offering a compact solution for space-constrained designs requiring high accuracy and low noise.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The datasheet states the amplifier can serve as a plug-in replacement for commercially available op-amps to improve performance. Specific substitute part numbers are not explicitly listed in the provided documentation.