TEXAS INSTRUMENTS OPA171AIDBVT Operational Amplifier, 3MHz, SOT-23

The TEXAS INSTRUMENTS OPA171AIDBVT is a high-performance, 36V single-supply operational amplifier designed for precision and low-noise applications. It operates across a wide supply range from 2.7V (±1.35V) to 36V (±18V), offering exceptional flexibility for various circuit designs. Unlike many amplifiers, it is fully specified across this entire voltage range, ensuring reliable performance regardless of your power supply configuration.

This device features a remarkably low noise floor of 14nV/√Hz and a low offset drift of ±0.3µV/°C, making it ideal for sensitive signal conditioning. It incorporates RFI (Radio Frequency Interference) filtered inputs to enhance performance in electrically noisy environments. A key advantage is its input stage, which can operate 100mV below the negative rail and up to the positive supply rail, supporting true rail-to-rail input operation.

Key Performance Characteristics

• Wide Supply Range: Operates from ±1.35V to ±18V (2.7V to 36V single supply).
• Low Noise & Drift: 14nV/√Hz noise density and low offset drift for precision applications.
• Robust Inputs: RFI filtering and phase-reversal prevention when inputs exceed supply rails.
• Output Swing: Rail-to-rail output provides maximum dynamic range.
• Stability: Remains stable with capacitive loads up to 300pF.
• Efficiency: Low quiescent current of 475µA per amplifier preserves power in battery-operated devices.

Housed in a compact, surface-mount SOT-23 package with 5 pins, this single-channel amplifier is a green product, manufactured without antimony or brominated flame retardants (no Sb/Br). Its combination of wide voltage operation, precision, and robust features makes it an excellent choice for demanding electronic designs.