MAX875

MAX873/MAX875/MAX876 19-0038; Rev 3; 6/07 Low-Power, Low-Drift, +2.5V/+5V/+10V Precision Voltage References General Description 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. 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 Typical Oper...