Description

The ADR4525BRZ device is a low-power, low-noise voltage reference with a maximum initial error of ±0.02% C grade, great temperature stability, and low output noise.

This voltage reference family has a novel core topology to achieve excellent accuracy while also providing industry-leading temperature stability and noise performance. The devices' low thermally induced output voltage hysteresis and long-term output voltage drift increase system accuracy across time and temperature changes.

The devices work well in portable equipment since they have a maximum operating current of 950 μA and a maximum low dropout voltage of 300 mV.

The ADR4525BRZ reference is available in an 8-lead SOIC package with a variety of output voltages, all of which are defined throughout a wide industrial temperature range of -40°C to +125°C. The ADR4525BRZ is also available in C grade, with a 0°C to 70°C temperature range. The ADR4525BRZ is a certified automotive component that comes in an 8-lead SOIC package.

Features

? TCVOUT (maximum temperature coefficient):

1 ppm/°C (temperature range: 0°C to 70°C)

2 parts per million per degree Celsius (B grade, 40°C to +125°C)

? Noise in the output (0.1 to 10 Hz):

1 μV p-p at 2.048 V typical VOUT

? Error in the initial output voltage:

±0.02% for a C grade (maximum)

? 3 V to 15 V input voltage range

? Ambient temperature:

40°C to +125°C in A and B grades

0°C to +70°C in C grade

? Current flow: +10 mA source/10 mA sink

? Quiescent current is low: 950 μA (maximum)

? Low dropout voltage (VOUT 3 V): 300 mV at 2 mA

? SOIC package with 8 leads

? Automotive applications are AEC-Q100 certified.

? Long-term drift: 51 ppm at 4500 hours is common

Applications

? Systems for collecting precise data

? Data converters with high resolution

? High-precision measuring instruments

? Instrumentation for industry

? Medical equipment

? Vehicle battery monitoring