MAX873/MAX875/MAX876 19-0038 Rev 3 6/07 Low-Power, Low-Drift, +2.5V/+5V/+10V Precision Voltage References General Description Features The MAX873/MAX875/MAX876 precision 2.5V, 5V, and MAX873/MAX875/MAX876 10V references offer excellent accuracy and very low +2.5V/+5V/+10V Outputs power consumption. Extremely low temperature drift 1.5mV/2.0mV/3.0mV (max) Initial Accuracy combined with excellent line and load regulation permit 7ppm/C (max) Temperature Coefficient stable operation over a wide range of electrical and envi- ronmental conditions. Operation for the MAX873 is guar- 450A (max) Quiescent Current anteed with a +4.5V supply, making the part ideal in systems running from a +5V 10% supply. Low 10Hz to Low Noise: 3.8V (typ at 2.5V) P-P 1kHz noisetypically 3.8V , 9V , and 18V , RMS RMS RMS Sources 10mA, Sinks 2mA respectively, for the MAX873, MAX875, MAX876make the parts suitable for 12-bit data-acquisition systems. 15ppm/mA Load Regulation (max) A TRIM pin facilitates adjustment of the reference voltage 4ppm/V Line Regulation (max) over a 6% range, using only a 100k potentiometer. A Wide Supply Voltage Range, +4.5V to +18V voltage output proportional to temperature provides a source for temperature compensation circuits, tempera- (MAX873) ture warning circuits, and other applications. TEMP Output Proportional to Temperature Applications Typical Operating Circuit 12-Bit ADCs and DACs V+ Digital Multimeters Portable Data-Acquisition Systems IN Low-Power Test Equipment MAX873 MAX875 +2.5V (MAX873) MAX876 0.1F* OUT +5.0V (MAX875) +10.0V (MAX876) GND *OPTIONAL Pin Configuration appears at end of data sheet. 0V Ordering Information/Selector Guide OUTPUT MAX INITIAL PIN- PKG PART VOLTAGE TEMPCO ACCURACY PACKAGE CODE (V) (ppm/C) % MAX873AESA+ 8 SO 2.500 7 0.06 S8-4 MAX873BESA+ 8 SO 2.500 20 0.10 S8-4 MAX875AESA+ 8 SO 5.000 7 0.04 S8-4 MAX875BESA+ 8 SO 5.000 20 0.06 S8-4 MAX876AESA+ 8 SO 10.000 7 0.03 S8-4 MAX876BESA+ 8 SO 10.000 20 0.05 S8-4 +Denotes a lead-free package. Note: All devices are specified over the -40C to +85C operating temperature range. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Low-Power, Low-Drift, +2.5V/+5V/+10V Precision Voltage References ABSOLUTE MAXIMUM RATINGS IN to GND...............................................................-0.3V to +20V Operating Temperature Ranges: OUT, TRIM, TEMP, TEST..............................- 0.3V to (IN + 0.3V) MAX87 E A ..................................................-40C to +85C Output Short-Circuit Duration (to GND)....................................5s Storage Temperature Range .............................-65C to +150C Continuous Power Dissipation (T = +70C) Lead Temperature (soldering, 10s) .................................+300C A SO (derate 5.88mW/C above +70C).........................471mW Junction Temperature (T )...............................................+150C J Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICSMAX873 (V = +5V, I = 0mA, C < 100pF, T = -40C to +85C, unless otherwise noted.) IN L LOAD A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS MAX873A (0.06%) 2.4985 2.5000 2.5015 Output Voltage V T = +25C V OUT A MAX873B (0.10%) 2.4975 2.5000 2.5025 MAX873A 2 7 Output-Voltage Drift TCV ppm/C OUT (Note 1) MAX873B 5 20 0.1Hz to 10Hz 3.8 V P-P Output-Noise Voltage e T = +25C n A 10Hz to 1kHz 6.8 V RMS T = +25C 1 4.0 A Line Regulation V = 4.5V to 18V ppm/V IN T = -40C to +85C 2 6 A T = +25C 3 15 A I = 0 to 10mA L (source) T = -40C to +85C 3 20 A Load Regulation ppm/mA T = +25C 100 900 A I = 0 to -1mA (sink) L T = -40C to +85C 150 1900 A T = +25C 300 450 A Quiescent Supply Current I A Q T = -40C to +85C 300 600 A Short-Circuit Output Current I Output shorted to GND 60 mA SC V Adjust Range 100 mV OUT Long-Term Output Drift 50 ppm/kh TEMP PIN Voltage Output V T = +25C 570 mV TEMP A Temperature Sensitivity TCV 1.9 mV/C TEMP ELECTRICAL CHARACTERISTICSMAX875 (V = +15V, I = 0mA, C < 100pF, T = -40C to +85C, unless otherwise noted.) IN L LOAD A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS MAX875A (0.04%) 4.998 5.000 5.002 Output Voltage V T = +25C V OUT A MAX875B (0.06%) 4.997 5.000 5.003 MAX875A 2 7 Output Voltage Drift TCV ppm/C OUT (Note 1) MAX875B 5 20 0.1Hz to 10Hz 9 V P-P Output-Noise Voltage e T = +25C n A 10Hz to 1kHz 14.5 V RMS T = +25C 1 4.0 A Line Regulation V = 7V to 18V ppm/V IN T = -40C to +85C 2 6 A 2 MAX873/MAX875/MAX876