TSZ Ultra-Precision Op Amps

By STMicroelectronics 121

TSZ Ultra-Precision Op Amps

STMicroelectronics' TSZ amplifier series offers low-power, zero-drift operational amplifiers in space-saving packages. They use chopper-stabilized architecture that provides very low offset voltages (8 μV max over the full operating temperature range) and near-zero drift. These miniature, ultra-precision and low quiescent current amplifiers offer high-impedance inputs that have a common-mode range 100 mV beyond the rails and rail-to-rail output that swings within 50 mV of the rails. TSZ amplifiers are optimized for low-voltage operation with single or dual supplies as low as +1.8 V (±0.9 V) up to +5.5 V (±2.75 V). The chopper architecture rejects the high 1/f noise typically found in CMOS input op amps, making it suited for a wide variety of low-frequency measurement applications.

  • Offset:
    • +/- 1 μV typ
    • +/- 8 μV very worst case
  • Offset drift:
    • 10 nV/°C typ
    • 30 nV/°C max
  • 400 kHz GBW
  • Low 28 μA typ quiescent current
  • Operating range: 1.8 to 5.5 V
  • Temperature range: -40 to 125 °C
  • Rail-to-rail input and output
  • ESD: 4 kV HBM
  • Qualified for automotive applications
  • Available in tiny packages: SOT23 and DFN2x2
  • Portable instrumentation
  • Battery-powered devices
  • Mobile communications
  • Sensor interfaces
  • Medical instrumentation
  • Electronic scales
  • Temperature measurement
  • Cardiac monitors