STMicroelectronics TSV794

The TSV791, TSV792 and TSV794 are single, dual and quad 50 MHz-bandwidth unity-gain-stable amplifiers. The rail-to-rail input stage and the slew rate of 30 V/µs make the TSV79x ideal for low-side current measurement. The excellent accuracy provided by maximum input voltage of 200 µV allows amplifying accurately small-amplitude input signal. The TSV79x can operate from a 2.2 V to 5.5 V single supply; it can typically handle an output capacitor up to 1 nF and is fully specified on a load of 22 pF, therefore allowing easy usage as A/D converters input buffer.

Features

• Gain bandwidth product 50 MHz, unity gain stable
• Slew rate 30 V/µs
• Low input offset voltage 50 µV typ., 200 µV max.
• Low input bias current: 1 pA typ.
• Low input voltage noise density 6.5 nV/√Hz @ 10 kHz
• Wide supply voltage range: 2.2 V to 5.5 V
• Rail-to-rail input and output
• Extended temperature range: - 40 °C to +125 °C
• Automotive grade version available
• Benefits:
  • Accuracy of measurement virtually unaffected by noise or input bias current
  • Signal conditioning for high frequencies

Applications

• High bandwidth low-side and high-side current sensing
• Photodiode transimpedance amplification
• A/D converters input buffers
• Power management in solar-powered systems
• Power management in automotive applications