5.5 MHz GBW in a 750 µA supply envelope
The OPA340UA/2K5: The 6 V/µs slew rate supports signal swing up to roughly 1 MHz full-scale without significant distortion, so the part handles audio-band conditioning, sensor buffering, and moderate-speed ADC driver stages without the current penalty of a wider-bandwidth amplifier.
Rail-to-rail output and single-supply headroom
The 50 mA output current per channel lets it drive moderate loads — a 100 Ω headphone, a 10-bit ADC reference input, or a 10 m cable — without an external buffer stage.
Input bias and offset — sensor front-end fit
Input bias current of 0.2 pA typ (CMOS input stage) means the voltage error across a 10 MΩ source impedance is only 2 µV — negligible for photodiode, pH probe, or piezoelectric sensor front-ends where a bipolar-input op amp would introduce millivolt-level errors from bias current flowing through the source resistance. Input offset voltage is 150 µV typ — adequate for 12-bit systems with a 2.5 V reference (1 LSB ≈ 610 µV at 12 bits) but worth derating for 16-bit or higher-resolution paths where the offset alone consumes 10% of the LSB budget.
RoHS3 compliant — no exemption-based restrictions on the bill of materials, so the part ships into EU, UKCA, and China RoHS jurisdictions without documentation overhead.