TPA6531-S5TR

Instrumentation, Op Amps, Buffer Amps Overview

The TPA6531-S5TR is a single-channel CMOS operational amplifier from the TPA653x series, housed in an SOT23-5 package. It operates on a supply voltage range of 1.75 V to 5.5 V with a maximum quiescent current of 25 μA per channel. Key electrical parameters include a gain-bandwidth product of 300 kHz, a slew rate of 0.15 V/μs, and a maximum input offset voltage of ±1.5 mV. The device features rail-to-rail input and output capabilities, low 0.1-Hz to 10-Hz voltage noise of 1 μVPP, and no significant output glitch during power transitions. It supports an operating temperature range from −40°C to 125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output capability with extended common-mode range
• Ultra-low power consumption suitable for battery-operated systems
• Low 1/f noise performance using bipolar input transistors
• Glitch-free operation during power-on and power-off cycles

Instrumentation, Op Amps, Buffer Amps Applications

• Sensor signal conditioning
• Instrumentation circuits
• Industrial control systems
• IoT devices

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix matches the required package variant, as the TPA6531 series includes multiple pin configurations such as SOT23-5, SOT23-6, and SC70 variants. Confirm that the selected part number aligns with the intended application requirements regarding supply voltage and thermal management. Ensure compliance with RoHS standards and check for any specific automotive or industrial qualification markings if applicable to the end-use environment.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select the TPA6531-S5TR when a single-channel op amp with minimal power draw is required. This component is appropriate for applications needing rail-to-rail signal swing and low-frequency noise performance. Consider alternative packages like SOT23-6 if a shutdown feature is necessary, as the standard SOT23-5 version lacks this pin. Evaluate the 300 kHz bandwidth against system speed requirements to ensure adequate gain margin and stability under expected load conditions.

Instrumentation, Op Amps, Buffer Amps Part Context

The TPA6531-S5TR belongs to the TPA653x family of low-power operational amplifiers manufactured by 3PEAK. This series encompasses single, dual, and quad amplifier configurations designed for general-purpose analog signal processing. The TPA6531 specifically provides one amplifier channel in a compact surface-mount package, distinguishing it from the multi-channel TPA6532 and TPA6534 counterparts within the same product line.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public datasheets do not list confirmed direct substitute part numbers for the TPA6531-S5TR. Engineers should evaluate other low-power, rail-to-rail operational amplifiers with similar 300 kHz bandwidth and SOT23-5 packaging constraints. Verify pin compatibility and electrical specifications before implementing any cross-brand replacement.