MAX6126A21+T

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference

Output Voltage: 2.048 V
Initial Accuracy: 0.06 %
Temperature Coefficient: 2 PPM/C
Series VREF - Input Voltage - Max: 13 V
Shunt Current - Max: 10 mA
Minimum Operating Temperature: - 40 C
Maximum Operating Temperature: + 125 C

data sheet: MAX6126.pdf