12 MHz GBW, rail-to-rail — automotive signal-conditioning workhorse
The TS972IYQT is a dual-channel general-purpose op amp from STMicroelectronics, built for automotive-grade signal conditioning where the board sees under-hood or cabin temperatures from -40°C to 125°C. Its 12 MHz gain-bandwidth product and 4 V/µs slew rate handle sensor front-ends, actuator drive loops, and level-shifting stages in engine management, body control, and EV battery-monitoring circuits. Each channel draws 2 mA quiescent supply current, keeping the thermal budget manageable in the compact 8-DFN (3x3 mm) exposed-pad package. The rail-to-rail output stage swings within millivolts of the supply rails, preserving dynamic range in low-voltage 2.7 V to 10 V systems — a common requirement in 5 V and 3.3 V automotive sensor interfaces.
AEC-Q100 Grade 1 — qualification and design-in margin
AEC-Q100 qualification (Grade 1, -40°C to +125°C operating ambient) means the part has passed the automotive stress tests: high-temperature operating life (HTOL), temperature cycling, ESD robustness, and latch-up immunity per JEDEC JESD22. For a design targeting under-hood or engine-bay deployment, this grade provides the reliability margin a commercial-grade op amp cannot guarantee. The 1 mV typical input offset voltage and 200 nA input bias current are adequate for non-precision sensing loops — think throttle-position sensors, pressure-transducer buffers, or motor-current shunt amplifiers where the signal floor is above a few millivolts. For sub-millivolt precision, a zero-drift or chopper-stabilized amplifier would be a better fit. The output can source or sink 100 mA per channel, enough to drive a small relay coil, a piezo buzzer, or the analog input of a downstream ADC without an external buffer — but the 8-DFN package's thermal resistance (RthJA ~50°C/W with the exposed pad soldered) limits continuous output current at high ambient temperatures; derate above 85°C.
Active production, ROHS3 — sourcing posture
The TS972IYQT carries an Active lifecycle status from STMicroelectronics with no announced end-of-life or last-time-buy. ROHS3 compliant (lead-free, no restricted substances per EU 2015/863). The part ships in Tape & Reel (TR) or Cut Tape (CT) — the 8-DFN package is compatible with standard pick-and-place.