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Texas Instruments REF33xx Voltage References

Texas Instruments REF33xx Voltage References are precision, low-power, low-dropout, series voltage references available in SC70-3,  SOT-23-3, and UQFN-8 packages. The REF33xx’s small size and low power consumption (5µA max) make them ideal for various portable and battery-powered applications. The Texas Instruments REF33xx can be operated at a supply voltage of 180mV above the specified output voltage under normal load conditions, except the REF3312, which has a minimum supply voltage of 1.7V. All models are specified for the wide temperature range of -40°C to +125°C.

Features

  • Microsize packages of SC70-3, SOT-23-3, and UQFN-8
  • 3.9µA (typ.) low supply current
  • 110mV (typ.) extremely low dropout voltage
  • A high output current of ±5mA
  • Low-temperature drift of 30ppm/°C (max.)
  • High initial accuracy of ±0.15% (max.)
  • 0.1Hz to 10Hz noise of 35µVPP (REF3312)
  • 1.2V, 1.8V, 2.5V, 3V, 3.3V voltage options

Applications

  • Portable equipment
  • Tablets and smartphones
  • Hard disk drives
  • Sensor modules
  • Data acquisition systems
  • Medical equipment
  • Test equipment

Functional Block Diagram

Block Diagram - Texas Instruments REF33xx Voltage References
Zveřejněno: 2017-09-27 | Aktualizováno: 2025-01-27