Automotive-grade quad op-amp with rail-to-rail output
The TS924AIYPT is a quad general-purpose op amp from STMicroelectronics, qualified to AEC-Q100 Grade 1, meaning it is specified and tested for the -40°C to 125°C ambient temperature range typical of under-hood and chassis-mounted automotive electronics. With a 4 MHz gain-bandwidth product and 1.3 V/µs slew rate, it handles sensor signal conditioning and actuator drive loops in engine management, transmission control, and body electronics without the speed penalty of a slower general-purpose part. The rail-to-rail output stage swings within millivolts of the supply rails, preserving headroom in low-voltage 2.7 V to 12 V supply spans — useful when the ADC reference or comparator threshold sits near the supply.
Package, supply, and output drive
Housed in a 14-TSSOP (4.40 mm width) package, the TS924AIYPT is a surface-mount part supplied in Tape & Reel or Cut Tape — the 0.65 mm pitch TSSOP footprint is common across many ST quad op-amps, so a single PCB layout can serve multiple BOM variants. Each of the four amplifiers draws 1 mA typical supply current (4 mA total for the package), and each output can source or sink up to 80 mA — enough to drive a small relay coil, LED indicator, or the input of a downstream ADC without a buffer stage. Input bias current is 15 nA typical, and input offset voltage is 900 µV maximum — adequate for many automotive sensor interfaces where the signal is in the tens of millivolts range, but worth checking against the required precision for a specific transducer.
Lifecycle and compliance
It is ROHS3 compliant, meeting the current EU restriction on hazardous substances. For new designs, the AEC-Q100 qualification provides the PPAP and reliability data that automotive tier-1s and OEMs require — no additional qualification effort needed for production release.