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Series voltage references

REF3125

ACTIVE

2.5-V, 20-ppm/°C max, 100-µA, 3-pin SOT-23 series voltage reference

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Data sheet

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REF35 ACTIVE 650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference 680-nA ultra-low-power, wide OTP programmable-voltage option from 1.024 V to 5 V and high precision at 0.05% intial accuracy and 6ppm/°C drift.

REF3125

ACTIVE
Data sheet Order now

Product details

VO (V) 2.5 Initial accuracy (max) (%) 0.2 Temp coeff (max) (ppm/°C) 20 Vin (min) (V) 2.55 Vin (max) (V) 5.5 Iq (typ) (mA) 0.1 Rating Catalog LFN 0.1 to 10 Hz (typ) (µVPP) 33 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125
VO (V) 2.5 Initial accuracy (max) (%) 0.2 Temp coeff (max) (ppm/°C) 20 Vin (min) (V) 2.55 Vin (max) (V) 5.5 Iq (typ) (mA) 0.1 Rating Catalog LFN 0.1 to 10 Hz (typ) (µVPP) 33 Iout/Iz (max) (mA) 10 Operating temperature range (°C) -40 to 125
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • Size Package: SOT23-3
  • Low Dropout: 5 mV
  • High Output Current: ±10 mA
  • High Accuracy: 0.2% Maximum
  • Low IQ: 115 µA Maximum
  • Excellent Specified Drift Performance:
    • 15 ppm/°C (Maximum) from 0°C to +70°C
    • 20 ppm/°C (Maximum) from –40°C to +125°C
  • Size Package: SOT23-3
  • Low Dropout: 5 mV
  • High Output Current: ±10 mA
  • High Accuracy: 0.2% Maximum
  • Low IQ: 115 µA Maximum
  • Excellent Specified Drift Performance:
    • 15 ppm/°C (Maximum) from 0°C to +70°C
    • 20 ppm/°C (Maximum) from –40°C to +125°C

The REF31xx is a family of precision, low power, low dropout, series voltage references available in the tiny 3-pin SOT-23 package.

The REF31xx’s small size and low power consumption (100 µA typical) make it ideal for portable and battery-powered applications. The REF31xx does not require a load capacitor, but is stable with any capacitive load and can sink or source up to 10 mA of output current.

Unloaded, the REF31xx can operate on supplies down to 5 mV above the output voltage. All models are specified for the wide temperature range of –40°C to +125°C.

The REF31xx is a family of precision, low power, low dropout, series voltage references available in the tiny 3-pin SOT-23 package.

The REF31xx’s small size and low power consumption (100 µA typical) make it ideal for portable and battery-powered applications. The REF31xx does not require a load capacitor, but is stable with any capacitive load and can sink or source up to 10 mA of output current.

Unloaded, the REF31xx can operate on supplies down to 5 mV above the output voltage. All models are specified for the wide temperature range of –40°C to +125°C.
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Type Title Date
* Data sheet REF31xx 15ppm/°C Maximum, 100-µA, SOT-23 Series Voltage Reference datasheet (Rev. D) PDF | HTML 31 Mar 2016
Application note Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 09 Jan 2024
E-book Tips and tricks for designing with voltage references (Rev. A) 07 May 2021
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
White paper Voltage reference selection basics white paper (Rev. A) 23 Oct 2018
Analog Design Journal Getting the most out of your instrumentation amplifier design 10 Oct 2005

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