company blog about ADI ADR4533BRZ Ultra-Low-Noise High-Accuracy 3.3V Voltage Reference

ADI ADR4533BRZ Ultra-Low-Noise High-Accuracy 3.3V Voltage Reference

Product Description Of ADR4533BRZ
ADR4533BRZ is 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.

ADR4533BRZ voltage references 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.

ADR4533BRZ references is provided in an 8-lead SOIC and are available in a wide range of output voltages, all of which are specified over the extended industrial temperature range of −40°C to +125°C.

Specification Of ADR4533BRZ
Output Voltage:3.3 V
Initial Accuracy:0.02 %
Temperature Coefficient:2 PPM / C
Series VREF - Input Voltage - Max:15 V
Shunt Current - Max:10 mA
Minimum Operating Temperature:- 40 C
Maximum Operating Temperature:+ 125 C
Accuracy:120 ppm/mA
Height:1.5 mm (Max)
Length:5 mm (Max)
Load Regulation:120 ppm/mA
Operating Supply Current:950 uA
Output Current:10 mA
Width:4 mm (Max)
Unit Weight:540 mg

Features Of ADR4533BRZ
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 package and LCC package
AEC-Q100 qualified for automotive applications
Long-term drift: 8 ppm typical at 4500 hours

Applications Of ADR4533BRZ
Precision data acquisition systems
High resolution data converters
High precision measurement devices
Industrial instrumentation
Medical devices
Automotive battery monitoring