LT1019

Application

  Negative Shunt References
  A/D and D/A Converters
  Precision Regulators
  Constant Current Sources
  V/F Converters
  Bridge Excitation


Pinout




Specifications

Input Voltage ..........................................................40V
Output Voltage (Note 2)
   LT1019-5, LT1019-10 .......................................... 16V
   LT1019-2.5, LT1019-4.5 ........................................ 7V
Output Short-Circuit Duration (Note 2)
   V_IN < 20V .................................................... Indefinite
   20V V_IN 35V .............................................. 10 sec
Specified Temperature Range
   Commercial ............................................. 0°C to 70°C
   Industrial ............................................ 40°C to 85°C
   Military .............................................. 55°C to 125°C
Trim Pin Voltage .................................................... ±30V
Temp Pin Voltage .......................................................5V
Storage Temperature Range (Note 11) 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C


Description

The LT^®1019 is a third generation bandgap voltage reference utilizing thin film technology and a greatly improved curvature correction technique. Wafer level trimming of both reference and output voltage combines to produce units with high yields to very low TC and tight initial tolerance of output voltage.

The LT1019 can both sink and source up to 10mA and can be used in either the series or shunt mode. This allows the reference to be used for both positive and negative output voltages without external components. Minimum input/ output voltage is less than 1V in the series mode, providing improved tolerance of low line conditions.

The LT1019 is available in four voltages: 2.5V, 4.5V, 5V and 10V. It is a direct replacement for most bandgap references presently available including AD580, AD581, REF-01, REF-02, MC1400, MC1404 and LM168.