Texas Instruments

LM385M3X-2.5/NOPB

Voltage Reference

Manufacturer
MPN
LM385M3X-2.5/NOPB
Product Type
Package / Case
SOT-23
Key Attributes
Micropower Voltage Reference Diode

Technical Specifications

TypeDescription
Output TypeFixed
Output Voltage2.5 V
Output Current0.02 A
Tolerance0.8 %
Minimum Cathode Current for Regulation20uA
Reference TypeParallel
Noise - 1/10Hz to 10Hz-
TypeDescription
Noise - 10Hz to 10kHz120uVrms
Iq A-
Working Voltage V-
Operating Temp0°C ~ +70°C
Features-
Package / CaseSOT-23

Product Introduction

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 replace older references with a tighter tolerance part. For applications requiring 1.2V see LM185-1.2.

The LM185-2.5-N is rated for operation over a -55°C to 125°C temperature range while the LM285-2.5-N is rated -40°C to 85°C and the LM385-2.5-N 0°C to 70°C. The LM185-2.5-N/LM285-2.5-N are available in a hermetic TO package and the LM285-2.5-N/LM385-2.5-N are also available in a low-cost TO-92 molded package, as well as SOIC and SOT-23. The LM185-2.5-N is also available in a hermetic leadless chip carrier package.

Features

  • ±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

Applications

  • - PRECISION 1 uA to 1 mA CURRENT SOURCES - METER THERMOMETERS

Datasheet

📄 Open Download

Alternative Parts

Common LM385M3X-2.5/NOPB alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCNEAR99
CNHTS8542399000
USHTS8542390001
TARIC8542399000
TypeDetails
CAHTS8542390000
BRHTS85423999
INHTS85423900
MXHTS8542.39.99

Sourcing Information

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