LT1009M 2.5V 集成参考电路 | 德州仪器

LT1009M (正在供货)

2.5V 集成参考电路

2.5V 集成参考电路 - LT1009M


The LT1009 reference circuit is a precision-trimmed 2.5-V shunt regulator featuring low dynamic impedance and a wide operating current range. The reference tolerance is achieved by on-chip trimming, which minimizes the initial voltage tolerance and the temperature coefficient, αVZ.

Although the LT1009 needs no adjustments, a third terminal (ADJ) allows the reference voltage to be adjusted ±5% to eliminate system errors. In many applications, the LT1009 can be used as a terminal-for-terminal replacement for the LM136-2.5, which eliminates the external trim network.

The LT1009 uses include 5-V system references, 8-bit analog-to-digital converter (ADC) and digital-to-analog converter (DAC) references, and power-supply monitors. The device also can be used in applications such as digital voltmeters and current-loop measurement and control systems.

The LT1009 is characterized for operation from –55°C to 125°C.


  • Excellent Temperature Stability
  • Initial Tolerance: 0.2% Typical
  • Dynamic Impedance: 0.6 Ω Typical
  • Wide Operating Current Range
  • Directly Interchangeable With LM136
  • Needs No Adjustment for Minimum Temperature Coefficient
  • Available in Military (–55°C/125°C) Temperature Range(1)

(1) Custom temperature ranges available


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Part number 立即下单 Reference voltage VO (V) VO adj (Min) (V) VO adj (Max) (V) Initial accuracy (Max) (%) Temp coeff (Max) (ppm/ degree C) Rating Operating temperature range (C) Iz for regulation (Min) (uA) Iout/Iz (Max) (mA)
LT1009M 立即下单 Fixed     2.5     2.5     2.5     0.2     35     Military     -55 to 125     400     10