Voltage References | CS1009

2.5 Volt Reference

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Overview

The CS1009 is a precision trimmed 2.5 V +/-5mV shunt regulator diode. The low dynamic impedance and wide operating current range enhances its versatility. The tight reference tolerance is achieved by on-chip trimming which minimizes voltage tolerance and temperature drift.

A third terminal allows the reference voltage to be adjusted +/-5% to calibrate out system errors. In many applications, the CS1009GZ can be used as a pin-to-pin replacement of the LT1009CZ and the LM136Z-2.5 with the external trim network eliminated.

  • 0.2% initial tolerance max.
  • Guaranteed temperature stability
  • Maximum 0.6W dynamic impedance
  • Wide operating current range
  • Directly interchangeable with LT1009 and LM136 for improved performance
  • No adjustments needed for minimum temperature coefficient
  • Meets Mil Std 883C ESD requirements

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