STMicroelectronics TSV772 dual operational amplifier

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STMicroelectronics’ TSV772 dual operational amplifier (op amp) features low power consumption and the option of a compact 2 x 2 mm DFN8 package. Extending ST’s high-performance 5 V op amp family, the product has rail-to-rail inputs and outputs as well as 20 MHz gain-bandwidth (GBW). It has a slew rate of 13 V/µs, 7 nV/√Hz input noise density, 4 kV ESD capability (HBM) and is unity-gain stable.

The maximum input-offset voltage of 200 µV (at 25°C) enables correct handling of low-amplitude signals. The inherent accuracy also saves using precision external resistors and helps avoid trimming or calibrating circuits in production. The product is characterised for an output capacitance of 47 pF, simplifying use as an A/D converter input buffer.

Capable of operating from a supply voltage as low as 2 V, the device can be connected to the same rail as a low-power microcontroller to simplify design. The low minimum voltage also allows long operation with a deeply discharged battery.

The unit is suitable for applications such as smoke detectors; these can leverage the op amp’s speed and efficiency to save battery energy for powering smart features, wireless connectivity and extended operating lifetime. The op amp also enables correct current measurement as the starting point for efficient power conversion in systems such as solar generators, telecom infrastructure equipment and computer servers.

For more information: http://www.st.com/TSV772.