High Accuracy TSV7722 Op-Amp for High-Speed Signal Conditioning in Power-Conversion Circuits and Optical Sensors
The new precision high-bandwidth operational amplifier, TSV7722 from STMicroelectronics comes with a gain-bandwidth of 22MHz and slew rate of 11V/μs. The new op-amp’s maximum input-offset voltage of 200µV (typical 50µV at 25°C) and extremely low input-voltage noise density of 7nV/√Hz allow accurate low-side current measurements.
The TSV7722 has a typical input bias current of 2pA for enabling accurate photodiode-current measurement in optical-sensing applications such as smoke detectors. With an operating voltage range of 1.8V-5.5V, the new op-amp can be used in high-speed signal conditioning and accurate current measurement in power-conversion circuits and optical sensors.
The TSV7722 can be powered from the same supply as low-voltage CMOS components, such as a microcontroller, or a deeply discharged battery. The device’s precision parameters and stability over temperature simplifies the circuit design and ensures outstanding accuracy without precision resistors or trimming after assembly.
With accurate and responsive current measurements, the TSV7722 delivers enhanced energy efficiency in applications such as automotive smart mobility, solar panels, telecom infrastructure, and computer servers. The TSV7722 is in production now in MiniSO8 and DFN8 packages, priced from $0.39 for orders of 1000 pieces.
Features of TSV7722 Op-Amp
- Gain bandwidth product 22 MHz, unity-gain stable
- High accuracy input offset voltage: 50 µV typ., 200 µV max
- Low input bias current: 2 pA typ.
- Low input voltage noise density: 7 nV/√Hz
- Wide supply voltage range: 1.8 V to 5.5 V
- Output rail-to-rail
- Input common-mode range includes low rail
- Automotive-grade and shutdown versions available
Note: More technical information can be found in the TSV7722 Datasheet linked at the bottom of this page and on the product page of the TSV7722 high-bandwidth operational amplifier.
