ADR4550(Ultralow Noise, High Accuracy,Voltage Reference)Introduction The ADR4550 device is high precision, low power, low noise voltage reference featuring ±0.02% maximum initial error,excellent temperature stability, and low output noise.This voltage reference uses an innovative core topology to achieve high accuracy while offering industry-leading temperature stability and noise performance. The low, thermally induced output voltage hysteresis and low long-term output voltage drift of the devices also improve system accuracy over time and temperature variations.A maximum operating current of 950 μA and a maximum low dropout voltage of 300 mV allow the devices to function very well in portable equipment.The ADR4550 reference is provided in an 8-lead SOIC package and is available in a wide range of output voltages, all of which is specified over the extended industrial temperature range of -40°C to 125°C.FeatureMaximum temperature coefficient (TCVOUT): 2 ppm/°COutput noise (0.1 Hz to 10 Hz) -Less than 1 μV p-p at VOUT of 2.048 V typicalInitial output voltage error: ±0.02% (maximum)Input voltage range: 3V to 15 VOperating temperature: -40°C to 125°COutput current: 10 mA source/-10 mA sin kL0w quiescent current: 950 μA (maximum)Low dropout voltage: 300 mV at 2 mA (VOUT≥3 V)8-lead sOIC packageAppearance
