LT580中文资料Precision References数据手册ADI规格书

描述 Description

OBSOLETE PRODUCT Data Sheet For Reference Only

The LT580/LT581 are bandgap voltage references 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 LT580/LT581 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.

For voltage references with improved specifications, please set the LT1019, LT1021, and LT1031 data sheets.

Applications

• A to D and D to A Converters

• Precision Regulators

• Constant Current Sources

• V to F Converters

• Bridge Excitation

特性 Features

• Direct Replacement for Present References

• Ultra Low Drift-3ppm/°C Typ.

• Curvature Corrected

• Series or Shunt Operation

• Ultra High Line Rejection ≈  ½ ppm/V

• Low Output Impedance ≈ 0.02Ω

• Tight Initial Output Voltage

• 100% Noise Tested

简介

LT580属于集成电路（IC）的电压基准。由制造生产的LT580电压基准产品属于基准电压源系列，可通过相对较不稳定的电源提供稳定的电势，电压值始终保持恒定，以便在测量、控制和类似应用中用作比较的标准。其功能行为可能与用于大功率调节的线性稳压器相似，但基准电压源器件却不适合用于此类用途。用作比较标准时，若输出电流容量或实际负载电流增大，其性能通常会降低。