ADI ADR4525BRZ

系列固定-40°C ~ 125°C（TA）

Overview

The ADR4525BRZ is a High Accuracy 2.5V Voltage Reference features ±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 950µA and a maximum low dropout voltage of 300mV allow the devices to function very well in portable equipment. This combination of features makes the ADR4525 ideally suited for precision signal conversion applications in precision data acquisition systems, high resolution data converters and medical applications.

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