Click here to ask about the production status of specific part numbers. MAX6126 Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference General Description Benefits and Features The MAX6126 is an ultra-low-noise, high-precision, low- Ultra-Low 1.3V Noise (0.1Hz to 10Hz, 2.048V P-P dropout voltage reference. This family of voltage references Output) feature curvature-correction circuitry and high-stability, Ultra-Low 3ppm/C (max) Temperature Coefficient laser-trimmed, thin-film resistors that result in 3ppm/C 0.02% (max) Initial Accuracy (max) temperature coefficients and an excellent 0.02% Wide (V + 200mV) to 12.6V Supply Voltage (max) initial accuracy. The proprietary low-noise reference OUT Range architecture produces a low flicker noise of 1.3V and P-P wideband noise as low as 60nV/Hz (2.048V output) without Low 200mV (max) Dropout Voltage the increased supply current usually found in low-noise 380A Quiescent Supply Current references. Improve wideband noise to 35nV/Hz and AC 10mA Sink/Source-Current Capability power-supply rejection by adding a 0.1F capacitor at the noise reduction pin. The MAX6126 series mode reference Stable with C = 0.1F to 10F LOAD operates from a wide 2.7V to 12.6V supply voltage range Low 20ppm/1000hr Long-Term Stability and load-regulation specifications are guaranteed to be 0.025 (max) Load Regulation less than 0.025 for sink and source currents up to 10mA. These devices are available over the automotive temperature 20V/V (max) Line Regulation range of -40C to +125C. Force and Sense Outputs for Remote Sensing The MAX6126 typically draws 380A of supply current and is available in 2.048V, 2.500V, 2.800V, 3.000V, 3.300V, 3.600V, 4.096V, and 5.000V output voltages. The Pin Configuration MAX6126 also feature dropout voltages as low as 200mV. Unlike conventional shunt-mode (two-terminal) references TOP VIEW that waste supply current and require an external resistor, the MAX6126 offers supply current that is virtually independent NR 1 8 I.C.* of supply voltage and does not require an external resistor. The MAX6126 is stable with 0.1F to 10F of load capacitance. IN 2 7 OUTF MAX6126 The MAX6126 is available in the tiny 8-pin MAX , as GND 3 6 OUTS well as 8-pin SO packages. GNDS 4 5 I.C.* Applications SO/MAX High-Resolution A/D and D/A Converters ATE Equipment *I.C. = INTERNALLY CONNECTED. DO NOT USE. High-Accuracy Reference Standard Precision Current Sources Digital Voltmeters Ordering Information continued at end of data sheet. High-Accuracy Industrial and Process Control MAX is a registered trademark of Maxim Integrated Products, Inc. Ordering Information OUTPUT MAXIMUM TEMPCO PIN- MAXIMUM INITIAL PART TEMP RANGE VOLTAGE (-40C to +85C PACKAGE ACCURACY (%) (V) (ppm/C) MAX6126AASA21+ -40C to +125C 8 SO 2.048 0.02 3 MAX6126BASA21+ -40C to +125C 8 SO 2.048 0.06 5 MAX6126A21+ -40C to +125C 8 MAX 2.048 0.06 3 +Denotes a lead(Pb)-free/RoHS-compliant package. 19-2647 Rev 9 11/19MAX6126 Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference Absolute Maximum Ratings (All voltages referenced to GND) Operating Temperature Range ......................... -40C to +125C GNDS ...................................................................-0.3V to +0.3V Junction Temperature ......................................................+150C IN ...........................................................................-0.3V to +13V Storage Temperature Range ............................ -65C to +150C OUTF, OUTS, NR ......-0.3V to the lesser of (V + 0.3V) or +6V Lead Temperature (soldering, 10s) .................................+300C IN Output Short Circuit to GND or IN......................................... 60s Soldering Temperature (reflow) .......................................+260C Continuous Power Dissipation (T = +70C) A 8-Pin MAX (derate 4.5mW/C above +70C) ............362mW 8-Pin SO (derate 5.88mW/C above +70C) ...............471mW 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 CharacteristicsMAX6126 21 (V = 2.048V) OUT (V = 5V, C = 0.1F, I = 0, T = T to T , unless otherwise noted. Typical values are at T = +25C.) IN LOAD OUT A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OUTPUT Output Voltage V T = +25C 2.048 V OUT A A grade SO -0.02 +0.02 Referred to B grade SO -0.06 +0.06 Output Voltage Accuracy V , % OUT A grade MAX -0.06 +0.06 T = +25C A B grade MAX -0.1 +0.1 A grade SO 0.5 3 B grade SO 1 5 T = -40C A to +85C A grade MAX 1 3 B grade MAX 2 7 Output Voltage Temperature TCV ppm/C OUT Coefficient (Note 1) A grade SO 1 5 B grade SO 2 10 T = -40C A to +125C A grade MAX 2 5 B grade MAX 3 12 T = +25C 2 20 V / 2.7V V A OUT IN Line Regulation V/V V 12.6V T = -40C to +125C 40 IN A Sourcing: 0 I 10mA 0.7 25 V / OUT OUT Load Regulation V/mA I Sinking: -10mA I 0 1.3 25 OUT OUT Short to GND 160 OUT Short-Circuit Current I mA SC Short to IN 20 SO 25 V / OUT Thermal Hysteresis (Note 2) ppm cycle MAX 80 SO 20 V / ppm/ OUT Long-Term Stability 1000hr at T = +25C A time 1000hr MAX 100 Maxim Integrated 2 www.maximintegrated.com