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LT1019IS8-2.5 Datasheet(PDF) 1 Page - Linear Technology |
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LT1019IS8-2.5 Datasheet(HTML) 1 Page - Linear Technology |
1 / 12 page 1 LT1019 1019fd Precision Reference The LT ®1019 is a third generation bandgap voltage refer- ence utilizing thin film technology and a greatly improved curvature correction technique. Wafer level trimming of both reference and output voltage combines to produce very low TC and tight initial output voltage tolerance. The LT1019 can both sink and source up to 10mA and can be used in either the series or shunt mode, allowing the reference to operate with positive or 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 and excellent line regulation. 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. ■ Tight Initial Output Voltage: < 0.05% ■ Ultralow Drift: 3ppm/°C Typical ■ Series or Shunt Operation ■ Curvature Corrected ■ Ultrahigh Line Rejection: ≈ 0.5ppm/V ■ Low Output Impedance: ≈ 0.02Ω ■ Plug-In Replacement for Present References ■ Available at 2.5V, 4.5V, 5V, and 10V ■ 100% Noise Tested ■ Temperature Output ■ Industrial Temperature Range in SO-8 ■ Available in 8-Lead N8 and S8 Packages ■ Negative Shunt References ■ A/D and D/A Converters ■ Precision Regulators ■ Constant Current Sources ■ V/F Converters ■ Bridge Excitation Ultralinear Strain Gauge Output Voltage Drift FEATURES DESCRIPTIO APPLICATIO S TYPICAL APPLICATION – + A1 † LT1637 A2 LT1001 R3 2M R2 20k R4 20k GAIN = 100 R5 2M R6** 2M IN LT1019-5 GND OUT 15V 5V 357Ω* 0.5W ACTIVE ELEMENT 350Ω BRIDGE –15V –5V 357Ω* 0.5W REDUCES REFERENCE AND AMPLIFIER LOADING TO ≈0. IF R6 = R3, BRIDGE IS NOT LOADED BY R2 AND R4. A1 VOS AND DRIFT ARE NOT CRITICAL BECAUSE A2 ACTS AS A DIFFERENTIAL AMPLIFIER. * ** † LT1019 • TA01 TEMPERATURE (˚C) –50 1.001 1.002 1.003 25 75 1019 TA02 1.000 0.999 –25 0 50 100 125 0.998 0.997 5ppm/°C 0°C TO 70°C “BOX” LT1019 CURVE UNCOMPENSATED “STANDARD” BANDGAP DRIFT CURVE 10ppm/°C FULL TEMP RANGE “BOX” , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. |
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