REF70 – Ultra-high-precision voltage reference with low noise and low drift

REF70 – Ultra-high-precision voltage reference with low noise and low drift

Texas Instruments REF70 Precision Voltage Reference is a family of high-precision series voltage references that offers the industry’s lowest noise (0.23ppmp-p). They offer a very low-temperature drift coefficient (2ppm/°C) and high accuracy (±0.025%). The REF70 offers a high PSRR, low dropout voltage, and excellent load and line regulation to help meet strict transient requirements. This combination of precision and features is designed for applications such as test and measurement that demand a precise reference. These devices should be paired with precision, high-resolution data converters such as ADS8900B, ADS127L01, and DAC11001A, to achieve optimal performance in the signal chain. The REF70 is also designed for noise-sensitive medical applications such as ultrasound and X-ray to help enable low-noise measurements from the analog front end.

The Texas Instruments REF70 family is available in VSSOP and LCCC package options. The LCCC (FKH) package is a hermetically sealed ceramic package that allows for low, long-term drift for applications that require a stable reference over a long time without calibration. The REF70 is specified for the wide temperature range of −40°C to +125°C. The wide temperature range enables operation across various industrial applications.


  • Low noise enables precision measurements
    • 0.23ppmp-p low frequency noise (0.1Hz to 10Hz)
    • 0.35ppmrms 10Hz to 1kHz
  • Low-temperature drift coefficient
    • 2ppm/°C maximum (-40°C to 125°C)
  • ±0.025% maximum high accuracy
  • Humidity resistant hermetic ceramic package (LCCC)
  • 28ppm low long-term stability (1k hr)
  • 400mV low dropout
  • Designed for a wide range of applications
    • Wide input voltage up to 18V
    • ±10mA output current
    • Voltage options (2.5V, 3V, 3.3V, 4.096V, 5V)
  • Ultra-flexible solution
    • Stable with 1µF to 100µF output low-ESR capacitor
    • 107dB at 1kHz high PSRR
    • −40°C to +125°C operating temperature range

more information:

Please follow and like us:
Pin Share
About mixos

Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

view all posts by admin
Notify of

Inline Feedbacks
View all comments
Get new posts by email:
Get new posts by email:

Join 97,426 other subscribers