STMicroelectronics expands its 5V op-amp line for high-accuracy signal conditioning

STMicroelectronics has added the TSV782 high-performance dual op-amp to its 5V family, with 30MHz gain bandwidth (GBW) and 50µV (typical) input offset voltage for high-speed, high-accuracy signal conditioning.

With the ability to function with a supply as low as 2.0V, the TSV782 can operate from a deeply discharged battery and so extend the runtime of equipment such as smoke alarms.

In addition, the operating current of just 3.3mA/channel helps designers maximize the application energy budget to power richer functions and capabilities, such as innovative smart features and wireless connectivity. Operating down to 2.0V also lets the op-amp use the same power rail as low-voltage logic devices to simplify system design and lower the bill of materials.

With rail-to-rail input and output and maximum slew rate of 20V/µs, the TSV782 joins similar rail-to-rail devices in ST’s high-performance family. These include the TSV772, which has GBW of 20MHz and a maximum slew rate of 13V/µs, and the 50MHz TSV792, which operates at 5.5mA per channel. Further op-amps in the portfolio include the TSV7722 and related products. These have a low-rail input stage optimized for low-side current measurements in power conversion systems.

The high accuracy of ST’s 5V op-amp family lets designers create circuits that require no trimming or calibration during production, saving expensive external components such as precision resistors and potentiometers. The newly added TSV782 has a maximum input bias current of 300pA up to 125°C, enabling accurate signal conditioning with high-impedance sensors or in trans-impedance configuration.

The TSV782 is in volume production now. Package options include SO-8, MiniSO-8, and a 2mm x 2mm DFN8, which is the smallest package in the industry for this class of op-amp. Prices start from $0.62 for orders of 1000 pieces. Free samples are available now on the ST eStore. Automotive-grade devices in SO-8 and MiniSO-8 will be in full production by the end of 2022.