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LM385-1.2-MIL

ACTIVE

Micropower Voltage Reference

LM385-1.2-MIL

ACTIVE

Product details

VO (V) 1.235 Initial accuracy (max) (%) 1 VO adj (min) (V) 1.235 VO adj (max) (V) 1.235 Iz for regulation (min) (µA) 8 Reference voltage (V) Fixed Rating Military Temp coeff (max) (ppm/°C) 150 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 20
VO (V) 1.235 Initial accuracy (max) (%) 1 VO adj (min) (V) 1.235 VO adj (max) (V) 1.235 Iz for regulation (min) (µA) 8 Reference voltage (V) Fixed Rating Military Temp coeff (max) (ppm/°C) 150 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 20
WAFERSALE (YS) See data sheet
  • Operating Current Range
    • LM385-1.2-MIL: 15 µA to 20 mA
  • 1% and 2% Initial Voltage Tolerance
  • Reference Impedance
    • LM385-1.2-MIL: 1 Ω maximum at 25°C
    • All devices: 1.5 Ω maximum over Full
      Temperature Range
  • Very Low Power Consumption
  • Interchangeable with Industry Standard
    LM385-1.2-MIL
  • Operating Current Range
    • LM385-1.2-MIL: 15 µA to 20 mA
  • 1% and 2% Initial Voltage Tolerance
  • Reference Impedance
    • LM385-1.2-MIL: 1 Ω maximum at 25°C
    • All devices: 1.5 Ω maximum over Full
      Temperature Range
  • Very Low Power Consumption
  • Interchangeable with Industry Standard
    LM385-1.2-MIL

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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* Data sheet LM385-1.2-MIL Micropower Voltage References datasheet PDF | HTML 21 Jun 2017

Design & development

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Calculation tool

SHUNT_VOLTAGE_REFERENCE_RESISTOR_CALCULATOR Shunt Voltage Reference External Resistor Quick Start Calculator

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 (...)

Supported products & hardware

Supported products & hardware

Products
Die & wafer services
LM336-2.5-MIL Shunt Voltage Reference
Shunt voltage references
ATL431 2.5-V low-IQ adjustable precision shunt regulator LM136-2.5-N Voltage Reference Diode LM136-5.0 5.0V Reference Diode LM136-5.0QML 5.0V Reference Diode LM136A-2.5QML 2.5V Reference Diode LM136A-2.5QML-SP Radiation-hardened QMLV, 2.5-V shunt voltage reference LM136A-5.0QML 5.0V Reference Diode LM185-1.2-N Micropower Voltage Reference Diode LM185-1.2QML Micropower Voltage Reference Diode LM185-1.2QML-SP Radiation-hardened QMLV, 1.2-V shunt voltage reference LM185-2.5-N Micropower Voltage Reference Diode LM185-2.5QML Micropower Voltage Reference Diode LM185-2.5QML-SP Space-grade QMLV 2.5-V  shunt voltage reference LM185-ADJ Adjustable Micropower Voltage Reference LM185QML Adjustable Micropower Voltage Reference LM285-1.2 1.235-V, –40°C to +85°C, micropower voltage reference LM285-1.2-N 1.235-V, –40°C to +85°C, micropower voltage reference diode LM285-2.5 2.5-V, –40°C to +85°C, micropower voltage reference LM285-2.5-N 2.5-V, –40°C to +85°C, micropower voltage reference diode LM285-ADJ Adjustable, 85°C, micropower voltage reference LM336-2.5 0°C to 70°C, 2.5-V integrated reference circuit LM336-2.5-N Voltage reference diode LM336-5.0 5-V reference diode LM385-1.2 1.235-V, 2%, 0°C to 70°C, micropower voltage reference LM385-1.2-MIL Micropower Voltage Reference LM385-1.2-N 1.235-V, 0°C to 70°C, micropower voltage reference diode LM385-2.5 2.5-V, 2%, 70°C, micropower voltage reference LM385-2.5-N 2.5-V, 0°C to 70°C, micropower voltage reference diode LM385-ADJ Adjustable, 70°C, micropower voltage reference LM4030 Ultra-high-precision shunt voltage reference LM4040 Fixed voltage, 45-µA, precision micropower shunt voltage reference LM4040-N 100-ppm/°C precision micropower shunt voltage reference LM4040-N-Q1 Automotive, 100-ppm/°C precision micropower shunt voltage reference LM4041-N Fixed & adjustable, 45-µA, precision micropower shunt voltage reference LM4041-N-Q1 Automotive, precision micropower shunt voltage reference LM4050-N 50-ppm/°C precision micropower shunt voltage reference LM4050-N-Q1 Automotive, 50-ppm/°C precision micropower shunt voltage reference LM4050QML-SP Radiation-hardened QMLV, 2.5-V or 5-V shunt voltage reference LM4051-N Fixed & adjustable, precision micropower shunt voltage reference LM431 2%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator LM4431 Micropower shunt voltage reference LMV431 1.5%, low-voltage (1.24-V) adjustable precision shunt regulator LMV431A 1%, low-voltage (1.24-V) adjustable precision shunt regulator LMV431B 0.5%, low-voltage (1.24-V) adjustable precision shunt regulator
Current references
LM134 3-Terminal Adjustable Current Source LM234 100°C 3-pin adjustable current source LM334 0°C to 70°C 3-pin adjustable current source
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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