MAX873A中文资料低功耗、低漂移、+2.5V/+5V/+10V精密电压基准数据手册ADI规格书

描述 Description

The MAX873/MAX875/MAX876 precision 2.5V, 5V, and10V references offer excellent accuracy and very lowpower consumption. Extremely low temperature driftcombined with excellent line and load regulation permitstable operation over a wide range of electrical and environmentalconditions. Operation for the MAX873 is guaranteedwith a +4.5V supply, making the part ideal insystems running from a +5V ±10% supply. Low 10Hz to1kHz 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 voltageover a ±6% range, using only a 100kΩ potentiometer. Avoltage output proportional to temperature provides asource for temperature compensation circuits, temperaturewarning circuits, and other applications.

特性 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

应用 Application

·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

简介

MAX873A属于集成电路（IC）的电压基准。由ADI制造生产的MAX873A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。