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低功耗、低漂移、+2.5V/+5V/+10V精密电压基准

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主要特征

应用/用途

Parametric specs for Voltage References
VOUT (V) 2.5
Temp. Coeff. (ppm/°C) (max) 7
ISUPPLY (µA) (max) 280
Initial Accuracy (% max) (@ +25°C) 0.06
VSUPPLY (V) (min) 4.5
VSUPPLY (V) (max) 18
Noise 0.1Hz to 10Hz (µVpp) (typ) 16
Oper. Temp. (°C) -40 to +85
Package/Pins See Data Sheet
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参量

Parametric specs for Voltage References
VOUT (V) 2.5
Temp. Coeff. (ppm/°C) (max) 7
ISUPPLY (µA) (max) 280
Initial Accuracy (% max) (@ +25°C) 0.06
VSUPPLY (V) (min) 4.5
VSUPPLY (V) (max) 18
Noise 0.1Hz to 10Hz (µVpp) (typ) 16
Oper. Temp. (°C) -40 to +85
Package/Pins See Data Sheet

主要特征

  • 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

应用/用途

  • 12位ADC与DAC
  • 数字万用表
  • 低功耗测试设备
  • 便携式数据采集系统

描述

The MAX873/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.

A TRIM pin facilitates adjustment of the reference voltage over a ±6% range, using only a 100kΩ potentiometer. A voltage output proportional to temperature provides a source for temperature compensation circuits, temperature warning circuits, and other applications.

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MAX873、MAX875、MAX876:典型工作电路 MAX873、MAX875、MAX876:典型工作电路 Zoom icon

技术文档

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