STMicroelectronics has added the TSV782 high-performance dual op-amp to its 5V family, with 30MHz gain bandwidth (GBW) and 50µV input offset voltage (typical) for high-speed, high-precision signal conditioning.
With the ability to operate on a supply as low as 2.0V, the TSV782 can operate from a fully discharged battery and thus extend the life of equipment such as smoke alarms.
Additionally, operating current of just 3.3 mA/channel helps designers maximize application power budget to power richer functions and capabilities, such as innovative smart features and wireless connectivity. Operating down to 2.0V also allows the op amp to use the same power rail as low-voltage logic devices to simplify system design and reduce the bill of materials.
With rail-to-rail input and output and a 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 a 20 MHz GBW and a maximum slew rate of 13 V/µs, and the 50 MHz TSV792, which operates at 5.5 mA per channel. Other operational amplifiers in the portfolio include the TSV7722 and related products. They feature a low-rail input stage optimized for low-side current measurements in power conversion systems.
The high precision of ST's family of 5V op amps allows designers to create circuits that do not require tuning or calibration during production, saving expensive external components such as precision resistors and potentiometers. The newly added TSV782 features a maximum input bias current of 300pA up to 125°C, enabling accurate signal conditioning with high impedance sensors or in transimpedance configuration.
The TSV782 is in volume production now. Package options include SO-8, MiniSO-8, and a 2mm x 2mm DFN8, which is the industry's smallest package for this class of op amp. Prices start at $0.62 for orders of 1,000 pieces. Free samples are now available on the ST eStore. Automotive-grade devices in SO-8 and MiniSO-8 will be in full production by the end of 2022.
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