MAX873

低功耗，低漂移， 2.5V / 5V / 10V精密电压基准 Low-Power, Low-Drift, 2.5V/5V/10V Precision Voltage References

General Description

The /MAX875/MAX876 precision 2.5V, 5V, and 10V references offer excellent accuracy and very low power consumption. Extremely low temperature drift combined with excellent line and load regulation permit stable operation over a wide range of electrical and environmental conditions. Operation for the MAX873 is guaranteed with a +4.5V supply, making the part ideal in systems running from a +5V ±10% supply. Low 10Hz to 1kHz noise—typically 3.8µVRMS, 9µVRMS, and 18µVRMS, respectively, for the MAX873, MAX875, MAX876—make the parts suitable for 12-bit data-acquisition systems.

Features

♦ MAX873/MAX875/MAX876

   +2.5V/+5V/+10V Outputs

   ±1.5mV/±2.0mV/±3.0mV max Initial Accuracy

♦ 7ppm/°C max Temperature Coefficient

♦ 450µA max Quiescent Current

♦ Low Noise: 3.8µVP-P typ at 2.5V

♦ Sources 10mA, Sinks 2mA

♦ 15ppm/mA Load Regulation max

♦ 4ppm/V Line Regulation max

♦ Wide Supply Voltage Range, +4.5V to +18V MAX873

♦ TEMP Output Proportional to Temperature

Applications

  12-Bit ADCs and DACs

  Digital Multimeters

  Portable Data-Acquisition Systems

  Low-Power Test Equipment