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LM285-ADJ

ACTIVO

Referencia de tensión de micropotencia ajustable de 85 °C

Detalles del producto

Rating Catalog VO (V) 1.24 Initial accuracy (max) (%) 1, 2 Iz for regulation (min) (µA) 10 VO adj (min) (V) 1.24 VO adj (max) (V) 5.3 Reference voltage (V) adjustable Temp coeff (max) (ppm/°C) 150 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 20
Rating Catalog VO (V) 1.24 Initial accuracy (max) (%) 1, 2 Iz for regulation (min) (µA) 10 VO adj (min) (V) 1.24 VO adj (max) (V) 5.3 Reference voltage (V) adjustable Temp coeff (max) (ppm/°C) 150 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 20
TO-92 (LP) 3 19.136 mm² (5.2 mm × 3.68 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Adjustable from 1.24V to 5.30V
  • Operating Current of 10μA to 20mA
  • 1% and 2% Initial Tolerance
  • 1Ω Dynamic Impedance
  • Low Temperature Coefficient

All trademarks are the property of their respective owners.

  • Adjustable from 1.24V to 5.30V
  • Operating Current of 10μA to 20mA
  • 1% and 2% Initial Tolerance
  • 1Ω Dynamic Impedance
  • Low Temperature Coefficient

All trademarks are the property of their respective owners.

The LM185/LM285/LM385 are micropower 3-terminal adjustable band-gap voltage reference diodes. Operating from 1.24 to 5.3V and over a 10μA to 20mA 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 band-gap reference uses only transistors and resistors, low noise and good long-term stability result.

Careful design of the LM185 has made the device 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 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.

The LM185 is rated for operation over a −55°C to 125°C temperature range, while the LM285 is rated −40°C to 85°C and the LM385 0°C to 70°C. The LM185 is available in a hermetic TO package and a LCCC package, while the LM285/LM385 are available in a low-cost TO-92 package, as well as SOIC.

The LM185/LM285/LM385 are micropower 3-terminal adjustable band-gap voltage reference diodes. Operating from 1.24 to 5.3V and over a 10μA to 20mA 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 band-gap reference uses only transistors and resistors, low noise and good long-term stability result.

Careful design of the LM185 has made the device 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 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.

The LM185 is rated for operation over a −55°C to 125°C temperature range, while the LM285 is rated −40°C to 85°C and the LM385 0°C to 70°C. The LM185 is available in a hermetic TO package and a LCCC package, while the LM285/LM385 are available in a low-cost TO-92 package, as well as SOIC.

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Documentación técnica

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Ver todo 3
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM185/LM285/LM385 Adjustable Micropower Voltage References datasheet (Rev. F) 5/04/2013
Libro electrónico Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28/06/2019
Nota sobre la aplicación TO-92 Packing Options / Ordering Instructions (Rev. A) 23/06/2010

Diseño y desarrollo

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