• Ultra-low quiescent current:
  • 650nA (typical)
• Initial accuracy: ±0.05% (maximum)
• Temperature coefficient (maximum):
  • 12ppm/°C (−40°C to 105°C, SOT23 package)
  • 10ppm/°C (−40°C to 85°C, WCSP package)
• Output 1/f noise (0.1Hz to 10Hz): 3.3ppm_P-P
• NR pin to reduce noise
• EN pin to reduce shutdown current consumption
• Long-term stability: 40ppm at 1k hour
• Thermal hysteresis: 70ppm
• Operating temperature range: −55°C to +125°C
• Output current: +10mA, −5mA
• Input voltage: V_REF + V_DO to 6V
• Output voltage options:
  • 1.024V, 1.2V, 1.25V, 1.6V, 1.8V, 2.048V,
    2.5V, 3.0V, 3.3V, 4.096V, 5.0V
• Small footprint 6-pin SOT−23 package
• Smallest footprint 4-pin WCSP package

• Flow transmitter
• Blood glucose monitor
• Servo drive control module
• Power quality analyzer
• Fault indicator
• Oscilloscope
• Process analytics
• Optical Module

The REF35 is a family of nanopower, low-drift, high-precision series reference devices. The REF35 family features ±0.05% initial accuracy with 650nA typical power consumption. The temperature coefficient (12ppm/°C) and long-term stability (40ppm at 1000 hours) of the device can help improve system stability and reliability. The low power consumption combined with high precision specifications are designed for a wide variety of portable and low current applications.

The REF35 supplies up to 10mA current with 3.3ppm_p-p noise and 20ppm/mA load regulation. With this feature set, REF35 creates a strong low-noise, high accuracy power supply for precision sensors and 12–16b data converters.

The family is specified for operation from –40°C to 105°C and is functional over –55°C to 125°C. The wide temperature is suited for industrial applications.

REF35 is available in wide output voltage variants starting from 1.024V to 5.0V. The device is offered in a space-saving, 6-pin SOT-23 and 4-pin WCSP package options. Contact your local TI sales representative for available voltage and package options.