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ADR431BR View Datasheet(PDF) - Analog Devices

Part NameADR431BR ADI
Analog Devices ADI
DescriptionUltralow Noise XFET® Voltage References with Current Sink and Source Capability
ADR431BR Datasheet PDF : 24 Pages
First Prev 11 12 13 14 15 16 17 18 19 20 Next Last
ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
BYPASS CAPACITOR = 0.1µF
LINE
INTERRUPTION
VIN = 500mV/DIV
VO = 50mV/DIV
TIME = 100µs/DIV
Figure 21. ADR431 Line Transient Response, 0.1 μF Bypass Capacitor
2µV/DIV
TIME = 1s/DIV
Figure 24. ADR435 0.1 Hz to 10.0 Hz Voltage Noise
1µV/DIV
TIME = 1s/DIV
Figure 22. ADR431 0.1 Hz to 10.0 Hz Voltage Noise
50µV/DIV
TIME = 1s/DIV
Figure 23. ADR431 10 Hz to 10 kHz Voltage Noise
50µV/DIV
TIME = 1s/DIV
Figure 25. ADR435 10 Hz to 10 kHz Voltage Noise
14
12
10
8
6
4
2
0
–110 –90 –70 –50 –30 –10 10 30 50 70
DEVIATION (PPM)
Figure 26. ADR431 Typical Hysteresis
90 110
Rev. J | Page 14 of 24
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GENERAL DESCRIPTION
The ADR43x series is a family of XFET voltage references featuring low noise, high accuracy, and low temperature drift performance. Using ADI’s patented temperature drift curvature correction and XFET (eXtra implanted junction FET) technology, the ADR43x’s voltage change versus temperature nonlinearity is minimized.

FEATURES
Low noise (0.1 Hz to 10 Hz): 3.5 µV p-p @ 2.5 V output
No external capacitor required
Low temperature coefficient
   A Grade: 10 ppm/°C max
   B Grade: 3 ppm/°C max
Load regulation: 15 ppm/mA
Line regulation: 20 ppm/V
Wide operating range
   ADR430: 4.1 V to 18 V
   ADR431: 4.5 V to 18 V
   ADR433: 5.0 V to 18 V
   ADR434: 6.1 V to 18 V
   ADR435: 7.0 V to 18 V
   ADR439: 6.5 V to 18 V
High output current: +30 mA/−20 mA
Wide temperature range: −40°C to +125°C

APPLICATIONS
Precision data acquisition systems
High resolution data converters
Medical instruments
Industrial process control systems
Optical control circuits
Precision instruments

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