LM285-2.5-N

現行

2.5-V、–40°C 至 +85°C 微功耗電壓參考二極體

產品詳細資料

VO (V) 2.5 Initial accuracy (max) (%) 0.8 VO adj (min) (V) 2.5 VO adj (max) (V) 2.5 Iz for regulation (min) (µA) 20 Reference voltage (V) Fixed Rating Catalog Temp coeff (max) (ppm/°C) 150 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 20
VO (V) 2.5 Initial accuracy (max) (%) 0.8 VO adj (min) (V) 2.5 VO adj (max) (V) 2.5 Iz for regulation (min) (µA) 20 Reference voltage (V) Fixed Rating Catalog Temp coeff (max) (ppm/°C) 150 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 20
SOIC (D) 8 29.4 mm² 4.9 x 6 TO-92 (LP) 3 19.136 mm² 5.2 x 3.68
  • ±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

All trademarks are the property of their respective owners.

  • ±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

All trademarks are the property of their respective owners.

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.

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.

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類型 標題 日期
* Data sheet LM185-2.5/LM285-2.5/LM385-2.5 Micropower Voltage Reference Diode datasheet (Rev. D) 2013年 3月 27日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
Application note TO-92 Packing Options / Ordering Instructions (Rev. A) 2010年 6月 23日

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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 (...)

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LM336-2.5-MIL 分流電壓參考
分流電壓參考
ATL431 2.5-V 低 IQ 可調整精密分流穩壓器 LM136-2.5-N 電壓參考二極體 LM136-5.0 5.0 V 參考二極體 LM136-5.0QML 5.0 V 參考二極體 LM136A-2.5QML 2.5V 參考二極體 LM136A-2.5QML-SP 抗輻射 QMLV、2.5-V 分流電壓參考 LM136A-5.0QML 5.0 V 參考二極體 LM185-1.2-N 微功耗電壓參考二極體 LM185-1.2QML 微功耗電壓參考二極體 LM185-1.2QML-SP 抗輻射 QMLV、1.2-V 分流電壓參考 LM185-2.5-N 微功耗電壓參考二極體 LM185-2.5QML 微功耗電壓參考二極體 LM185-2.5QML-SP 航太級 QMLV 2.5-V 分流電壓參考 LM185-ADJ 可調整微電源電壓參考 LM185QML 可調整微電源電壓參考 LM285-1.2 1.235-V、–40°C 至 +85°C、微功率電壓參考 LM285-1.2-N 1.235-V、–40°C 至 +85°C 微功耗電壓參考二極體 LM285-2.5 2.5-V、–40°C 至 +85°C、微功率電壓參考 LM285-2.5-N 2.5-V、–40°C 至 +85°C 微功耗電壓參考二極體 LM285-ADJ 可調式 85°C 微功耗電壓參考 LM336-2.5 0°C 至 70°C、2.5-V 整合式參考電路 LM336-2.5-N 電壓參考二極體 LM336-5.0 5-V 參考二極體 LM385-1.2 1.235-V、2%、0°C 至 70°C 微功率電壓參考 LM385-1.2-MIL 微功耗電壓參考 LM385-1.2-N 1.235-V、0°C 至 70°C 微功耗電壓參考二極體 LM385-2.5 2.5-V、2%、70°C、微功率電壓參考 LM385-2.5-N 2.5-V、0°C 至 70°C 微功耗電壓參考二極體 LM385-ADJ 可調式 70°C 微功耗電壓參考 LM4030 超高精確分流電壓參考 LM4040 固定電壓、45-µA 精密微功率分流電壓參考 LM4040-N 100-ppm/°C 精密微功率分流電壓參考 LM4040-N-Q1 車用 100-ppm/°C 精密微功率分流電壓參考 LM4041-N 固定式與可調式 45-µA 精密微功率分流電壓參考 LM4041-N-Q1 車用精密微功率分流電壓參考 LM4050-N 50-ppm/°C 精密微功率分流電壓參考 LM4050-N-Q1 車用 50-ppm/°C 精密微功率分流電壓參考 LM4050QML-SP 抗輻射 QMLV、2.5-V 或 5-V 分流電壓參考 LM4051-N 固定式與可調式精密微功率分流電壓參考 LM431 2%、1% 或 0.5% 準確度,可調整精密齊納分流穩壓器 LM4431 微功耗分流電壓參考 LMV431 1.5% 低電壓 (1.24-V) 可調式精密分流穩壓器 LMV431A 1% 低電壓 (1.24-V) 可調式精密分流穩壓器 LMV431B 0.5% 低電壓 (1.24-V) 可調節式精密分流穩壓器
電流參考
LM134 3 端子可調節電流源 LM234 100°C 3 接腳可調整電流源 LM334 0°C 至 70°C 3 接腳可調整電流源
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