TPA2644-SO2R

Instrumentation, Op Amps, Buffer Amps Overview

The TPA2644-SO2R is a quad-channel operational amplifier from the TPA264x series, manufactured by 3PEAK. It operates within a supply voltage range of 3 V to 36 V and supports an operating temperature range of –40°C to 125°C. The device features a gain-bandwidth product of 1.5 MHz and a slew rate of 0.5 V/μs. Key electrical characteristics include a maximum input offset voltage of ±2 mV at 25°C, low 1/f noise of 50 nV/√Hz at 10 Hz, and high power supply rejection ratio (PSRR+) of 60 dB at 100 kHz. Quiescent current per amplifier is typically 550 μA.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• High supply voltage capability up to 36 V with rail-to-rail negative input common-mode range
• Low 1/f noise performance suitable for precision signal conditioning
• Immunity to high-frequency power supply noise via high PSRR+
• No significant output glitch during power-on and power-off transitions

Instrumentation, Op Amps, Buffer Amps Applications

• Instrumentation systems
• Sensor interface circuits
• Motor control applications
• Industrial control equipment

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific package marking 'A2644' and order number suffix '-SO2R' corresponds to the SOP14 package variant. Confirm RoHS compliance and halogen-free status as defined by the manufacturer's 'Green' designation. Ensure the procurement documentation matches the official datasheet revision AA20241213A3 for accurate electrical specifications.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high supply voltage operation up to 36 V is required alongside low noise performance. The absence of internal ESD diodes to the positive supply rail makes it suitable for battery-related applications where blocking current paths during power-off is necessary. Verify that the 1.5 MHz bandwidth meets the system's frequency response requirements.

Instrumentation, Op Amps, Buffer Amps Part Context

The TPA2644-SO2R belongs to the TPA264x family of high supply voltage operational amplifiers. This series includes single (TPA2641), dual (TPA2642), and quad (TPA2644) channel variants. The TPA2644 specifically integrates four independent amplifiers in a single package, designed for applications requiring multiple signal channels with consistent performance characteristics across all channels.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitute part numbers are not explicitly listed in the provided documentation. Designers should evaluate other 36 V, quad-channel op-amps with similar bandwidth and noise specifications if cross-compatibility is required.