LM185-2.5QML Micropower Voltage Reference Diode | TI.com


Micropower Voltage Reference Diode


Recommended alternative parts

  • LM185-2.5QML-SP  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 


The LM185-2.5 are micropower 2-terminal band-gap voltage regulator diodes. Operating over a 20 μA to 20 mA current range, they feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming is used to provide tight voltage tolerance. Since the LM185-2.5 band-gap reference uses only transistors and resistors, low noise and good long term stability result.

Careful design of the LM185-2.5 has made the device exceptionally tolerant of capacitive loading, making it easy to use in almost any reference application. The wide dynamic operating range allows its use with widely varying supplies with excellent regulation.

The extremely low power drain of the LM185-2.5 makes it useful for micropower circuitry. This voltage reference can be used to make portable meters, regulators or general purpose analog circuitry with battery life approaching shelf life. Further, the wide operating current allows it to replace older references with a tighter tolerance part. For applications requiring 1.2V see LM185-1.2.


  • Operating Current of 20 μA to 20 mA
  • 0.6Ω Dynamic Impedance (A grade)
  • Low Temperature Coefficient
  • Low Voltage Reference—2.5V

All trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Series voltage references

VO (V)
Initial accuracy (Max) (%)
Temp Coeff (Max) (ppm/ degree C)
Operating temperature range (C)
Iout/Iz (Max) (mA)
Package Group
Vin (Min) (V)
Vin (Max) (V)
-55 to 125    
CFP | 10
TO | 2