STMicroelectronics TSZ181H1, TSZ182H1 operational amplifiers

STMicroelectronics’ TSZ181H1 and dual TSZ182H1 automotive-qualified operational amplifiers (op amps) are designed to provide accuracy and stability over a wide (-40 to 175°C) temperature range. The high maximum operating temperature encourages use in harsh environments and in applications with long mission profiles.

The op amps have a low input offset voltage, typical 3.5 µV at 25°C, and input bias current, typical 30 pA at 25°C. The parameters display minimal drift over temperature, with maximum input offset voltage specified as 70 µV at 25°C and 100 µV over the full temperature range. The maximum specified input bias current is 200 pA at 25°C and 225 pA over the full range.

With their wide operating-temperature range, the op amps can withstand harsh environments in industrial as well as automotive applications. At lower die temperature, they can operate for an extended lifetime in applications that require long mission-profile ICs. The devices are AEC-Q100 qualified and have 4 kV HBM ESD tolerance.

The operational amplifiers feature high-bandwidth sensor interfaces and can be used for precision signal conditioning without calibration. Designed for a wide power supply voltage range, from 2.2 to 5.5 V, both devices have rail-to-rail input and output to maximise usable dynamic range.

Both op amps are in production now and available in a choice of SOT23-5 or SO8 packages.