Product details

VO (V) 1.235 Reference voltage Fixed Initial accuracy (Max) (%) 1 VO adj (Min) (V) 1.235 VO adj (Max) (V) 1.235 Iz for regulation (Min) (uA) 8 Rating Catalog Operating temperature range (C) 0 to 70 Iout/Iz (Max) (mA) 20
VO (V) 1.235 Reference voltage Fixed Initial accuracy (Max) (%) 1 VO adj (Min) (V) 1.235 VO adj (Max) (V) 1.235 Iz for regulation (Min) (uA) 8 Rating Catalog Operating temperature range (C) 0 to 70 Iout/Iz (Max) (mA) 20
SOIC (D) 8 19 mm² 3.91 x 4.9 TO-92 (LP) 3 19 mm² 5.2 x 3.68 TSSOP (PW) 8 19 mm² 3 x 6.4
  • Operating Current Range
    • LM285-1.2: 10 μA to 20 mA
    • LM385-1.2: 15 μA to 20 mA
    • LM385B-1.2: 15 μA to 20 mA
  • 1% and 2% Initial Voltage Tolerance
  • Reference Impedance
    • LM385-1.2: 1 Ω MAX at 25°C
    • All devices: 1.5 Ω MAX over Full
      Temperature Range
  • Very Low Power Consumption
  • Interchangeable with Industry Standard
    LM285-1.2 and LM385-1.2
  • Operating Current Range
    • LM285-1.2: 10 μA to 20 mA
    • LM385-1.2: 15 μA to 20 mA
    • LM385B-1.2: 15 μA to 20 mA
  • 1% and 2% Initial Voltage Tolerance
  • Reference Impedance
    • LM385-1.2: 1 Ω MAX at 25°C
    • All devices: 1.5 Ω MAX over Full
      Temperature Range
  • Very Low Power Consumption
  • Interchangeable with Industry Standard
    LM285-1.2 and LM385-1.2

These micropower, two-terminal, band-gap voltage references operate over a 10-μA to 20-mA current range and feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming provides tight voltage tolerance. The band-gap reference for these devices has low noise and long-term stability.

The design makes these devices exceptionally tolerant of capacitive loading and, thus, easier to use in most reference applications. The wide dynamic operating temperature range accommodates varying current supplies, with excellent regulation.

The extremely low power drain of this series makes them useful for micropower circuitry. These voltage references can be used to make portable meters, regulators, or general-purpose analog circuitry, with battery life approaching shelf life. The wide operating current range allows them to replace older references with tighter-tolerance parts.

These micropower, two-terminal, band-gap voltage references operate over a 10-μA to 20-mA current range and feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming provides tight voltage tolerance. The band-gap reference for these devices has low noise and long-term stability.

The design makes these devices exceptionally tolerant of capacitive loading and, thus, easier to use in most reference applications. The wide dynamic operating temperature range accommodates varying current supplies, with excellent regulation.

The extremely low power drain of this series makes them useful for micropower circuitry. These voltage references can be used to make portable meters, regulators, or general-purpose analog circuitry, with battery life approaching shelf life. The wide operating current range allows them to replace older references with tighter-tolerance parts.

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Type Title Date
* Data sheet LMx85-1.2, LM385B-1.2 Micropower Voltage References datasheet (Rev. J) PDF | HTML 27 Jan 2015
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019

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This external resistor quick-start calculator tool lets you easily calculate valid external resistor values relative to voltage reference, supply and load-current bounds. With these inputs, you can instantly view the resulting calculations and use the color-coded indications to understand (...)
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SOIC (D) 8 View options
TO-92 (LP) 3 View options
TSSOP (PW) 8 View options

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