Quad op-amp for automotive signal chains
The STMicroelectronics TS9224IDT is a quad-channel, general-purpose operational amplifier from the Automotive, AEC-Q100 series — qualified to the automotive reliability standard, not just rated to an extended temperature range. It delivers a 4 MHz gain-bandwidth product and a 1.3 V/µs slew rate, sufficient for filtering, level shifting, and sensor buffering in powertrain and body electronics. Supply range spans 2.7 V to 12 V, covering both low-voltage logic rails and battery-referenced circuits.
The AEC-Q100 qualification means the part has passed the stress tests (HTOL, HBM, temperature cycling) required for OEM PPAP submission — a hard requirement for Tier-1 automotive programs. For designs that only need industrial temperature range, the non-automotive TS922 or TS924 series may be cost-optimised, but they lack the qualification traceability an automotive auditor expects.
Package and footprint for production
The 80 mA output current per channel is adequate for driving modest loads like ADC inputs or small relays; for heavier loads, parallel two channels or add a buffer stage. Supply current is 900 µA per amplifier — a reasonable quiescent budget for a multi-channel sensor interface on a 12 V battery line.