New Low-power Dual Operational Amplifier Features Broad Supply Voltage Range and Rail-to-Rail Output

Published  June 8, 2022   0
L Lakshita
Low-power Dual Operational Amplifier

STMicroelectronics has introduced the new general-purpose low-power dual operational amplifier TSB622 that operates over the extended temperature range -40°C to 125°C and enhances ruggedness and flexibility in industrial and automotive applications. This automotive-qualified amplifier features a broad supply-voltage range from 2.7V to 36V which lets designers use the same device for multiple applications with different voltage domains. Moreover, the rail-to-rail output maximizes dynamic range while the input offset voltage of 1mV ensures competitive precision for a low-power device.

With a gain-bandwidth (GBW) product of 1.7MHz and a maximum operating current of 375μA per channel (at 36V supply), this device delivers high speed relative to power consumption. The low supply current allows use in applications that demand low-power operation and extends the runtime of battery-operated equipment. In addition, 4kV ESD tolerance (HBM – human-body model) and enhanced resistance to electromagnetic interference ensure the TSB622 withstands the technically demanding industrial and automotive environments.

Key Features

  • Low offset voltage: 1 mV max. @ 25 °C

  • Low current consumption: 375 μA max. / operator @ 36 V

  • Wide supply voltage: 2.7 to 36 V

  • Gain bandwidth product: 1.7 MHz

  • Unity gain stable

  • Rail-to-rail output

  • Input common mode voltage incudes ground

  • High ESD tolerance: 4 kV HBM

  • EMI hardened

  • Extended temperature range: -40 to 125 °C

  • Automotive qualification

  • Micropackage: SO8, MiniSO8, DFN8 3x3 Wettable flanks

The TSB622 dual op amp is now packaged in SO8 and MiniSO8 styles that save board space and can help reduce the overall cost of the PCB. It is in production now and the 3mm x 3mm DFN8 package will come with wettable flanks that provide extra mechanical strength to meet the automotive industry requirements. The industrial-grade version is available from $1.12 and the automotive-grade version from $1.34 for orders of 1000 pieces.