ADR4520

Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ ADR4540/ADR4550 Ultralow Noise, High Accuracy Voltage References FEATURES PIN CONFIGURATIONS ► Maximum temperature coefficient (TCVOUT): ► 0.8 ppm/°C (D grade 0°C to 70°C) ► 1 ppm/°C (C grade 0°C to 70°C) ► 2 ppm/°C (B grade −40°C to +125°C) ► 4 ppm/°C (A grade −40°C to +125°C) ► Output noise (0.1 Hz to 10 Hz): ► 1 μV p-p at VOUT of 2.048 V typical ► Initial output voltage error: ► B, C, D grade: ±0.02% (maximum) ► Input voltage range: 3 V to 15 V ► Operating temperature: ► A grade and B grade: −40°C to +125°C ► C grade and D grade: 0°C to +70°C ► Output current: +10 mA source/−10 mA sink ► Low quiescent current: 950 μA (maximum) ► Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V) ► 8-lead SOIC and LCC packages ► AEC-Q100 qualified for automotive applications ► Long-term drift: 8 ppm typical at 4500 hours Figure 1. 8-Lead SOIC Pin Configuration APPLICATIONS ► Precision data acquisition systems ► High resolution data converters ► High precision measurement devices ► Industrial instrumentation ► Medical devices ► Automotive battery monitoring Figure 2. 8-Lead LCC Pin Configuration GENERAL DESCRIPTION The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 devices are high precision, low power, low noise voltage references featuring ±0.02% B, C, and D grade maximum initial error, excellent temperature stability, and low output noise. This family of voltage references uses an innovative core topology to achieve high accuracy while o...