Maxim Integrated Precision Series/Shunt Precision Voltage Reference 4.09V ±0.06% 8-Pin SO, MAX6126BASA41+

Ultra-Low 1.3μVP-P Noise (0.1Hz to 10Hz, 2.048V Output)
Ultra-Low 3ppm/°C (max) Temperature Coefficient
±0.02% (max) Initial Accuracy
Wide (VOUT + 200mV) to 12.6V Supply Voltage Range
Low 200mV (max) Dropout Voltage
380μA Quiescent Supply Current
10mA Sink/Source-Current Capability
Stable with CLOAD = 0.1μF to 10μF
Low 20ppm/1000hr Long-Term Stability
0.025Ω (max) Load Regulation
20μV/V (max) Line Regulation
Force and Sense Outputs for Remote Sensing
Applications
Automated Test Equipment (ATE)
Digital Voltmeters
High-Accuracy Industrial and Process Control
High-Accuracy Reference Standard
High-Resolution A/D and D/A Converters
Precision Current Sources