Dual Op-Amp for Automotive Signal Chains
The LM258WYPT is a general-purpose dual operational amplifier from STMicroelectronics, qualified to AEC-Q100 for automotive applications. It integrates two independent op-amps in a single 8-TSSOP package, with a supply voltage range spanning 3 V to 30 V.
Parametric Profile for BOM Fit
With a gain-bandwidth product of 1.1 MHz and a slew rate of 0.6 V/µs, this op-amp handles sensor conditioning and control loop filtering up to the low hundreds of kHz — adequate for most automotive ECU signal conditioning, where the bandwidth ceiling is below the switching noise of the DC-DC stage. Input offset voltage is 2 mV typical, input bias current 20 nA, and each channel can source or sink 60 mA — the output drive is generous for driving the ADC input or a comparator load without a buffer. Supply current per amplifier is 700 µA typical, keeping the total quiescent draw under 1.4 mA for the dual package — a low enough overhead for always-on battery-backed modules in the vehicle.
Automotive Temperature Range and Package
Rated for -40°C to +105°C operating ambient, the LM258WYPT covers the passenger cabin and under-hood zones that stay below the 125°C ceiling — engine-bay ECUs near the block need the higher-grade sibling, but this suits body electronics, infotainment, and sensor interfaces. The 8-TSSOP package with 0.65 mm pitch and 4.40 mm body width is a common footprint for automotive mixed-signal PCBs — the same land pattern serves the LM258 family in SO-8 if a second source is needed.