LM185-2.5-N, LM285-2.5-N, LM385-2.5-N
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SNVS743D – DECEMBER 1999 – REVISED MARCH 2013
LM185-2.5-N/LM285-2.5-...
LM185-2.5-N, LM285-2.5-N, LM385-2.5-N
www.ti.com
SNVS743D – DECEMBER 1999 – REVISED MARCH 2013
LM185-2.5-N/LM285-2.5-N/LM385-2.5-N Micropower
Voltage Reference Diode
Check for Samples: LM185-2.5-N, LM285-2.5-N, LM385-2.5-N
FEATURES
1
2 ±20 mV (±0.8%) max. Initial Tolerance (A Grade)
Operating Current of 20 μA to 20 mA
0.6Ω Dynamic Impedance (A Grade)
Low Temperature Coefficient
Low
Voltage Reference—2.5V
1.2V Device and Adjustable Device Also Available—LM185-1.2 Series and LM185 Series, respectively
DESCRIPTION
The LM185-2.5-N/LM285-2.5-N/LM385-2.5-N 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 LM-185-2.5-N band-gap reference uses only transistors and resistors, low noise and good long term stability result.
Careful design of the LM185-2.5-N 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-N 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...