Low-Drift Low-Power Small-Footprint Series Voltage Reference With Clean Start

Low-Drift Low-Power Small-Footprint Series Voltage Reference With Clean Start - REF2125


The REF2125 device is a low temperature drift
(6 ppm/°C), low-power, high-precision CMOS voltage reference, featuring ±0.05% initial accuracy, low operating current with power consumption less than 95 µA. This device also offers very low output noise of 5 µVp-p /V, which enables its ability to maintain high signal integrity with high-resolution data converters and noise critical systems.

Stability and system reliability are further improved by the low output-voltage hysteresis of the device and low long-term output voltage drift. Furthermore, the small size and low operating current of the devices (95 µA) make them ideal for portable and battery-powered applications.

REF2125 is specified for the wide temperature range of −40°C to +125°C. Contact the TI sales representative for additional voltage options.




  • Initial Accuracy: ±0.05% (maximum)
  • Temperature Coefficient : 6 ppm/°C (maximum)
  • Operating Temperature Range: −40°C to +125°C
  • Output Current: ±10 mA
  • Low Quiescent Current: 95 µA (maximum)
  • Wide Input Voltage: 12 V
  • Output 1/f Noise (0.1 Hz to 10 Hz): 5 µVPP/V
  • Excellent Long-Term Stability 30 ppm/1000 hrs
  • Small Footprint 5-Pin SOT-23 Package

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Parametrics Compare all products in Series Voltage Reference

VO (V)
Initial Accuracy (Max) (%)
Temp Coeff (Max) (ppm/ degree C)
Operating Temperature Range (C)
Iout/Iz (Max) (mA)
Iq (Typ) (uA)
Shutdown Current (Typ) (uA)
Iq (Max) (uA)
Package Group
Vin (Min) (V)
Vin (Max) (V)
REF2125 REF3225
2.5    2.5   
0.05    0.2   
6    7
-40 to 125    -40 to 125   
10    10   
72    100   
95    120   
Clean-Start    N/A   
SOT-23    SOT-23   
2.55    2.55   
12    5.5   

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