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ADR433

Analog Devices
Part Number ADR433
Manufacturer Analog Devices
Description Ultralow Noise XFET Voltage References
Published Jul 6, 2022
Detailed Description Data Sheet Ultralow Noise XFET Voltage References with Current Sink and Source Capability ADR430/ADR431/ADR433/ADR434/A...
Datasheet PDF File ADR433 PDF File

ADR433
ADR433

Overview
Data Sheet Ultralow Noise XFET Voltage References with Current Sink and Source Capability ADR430/ADR431/ADR433/ADR434/ADR435 FEATURES Low noise (0.
1 Hz to 10.
0 Hz): 3.
5 µV p-p at 2.
500 V output No external capacitor required Low temperature coefficient A grade: 10 ppm/°C maximum B grade: 3 ppm/°C maximum 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 High output source and sink current: 30 mA and −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 GENERAL DESCRIPTION The ADR430/ADR431/ADR433/ADR434/ADR4351 series is a family of XFET® voltage references featuring low noise, high accuracy, and low temperature drift performance.
Using Analog Devices, Inc.
, temperature drift curvature correction and extra implanted junction FET (XFET) technology, voltage change vs.
temperature nonlinearity in the ADR430/ADR431/ADR433/ ADR434/ADR435 is minimized.
The XFET references operate at lower current (800 µA) and lower supply voltage headroom (2 V) than buried Zener references.
Buried Zener references require more than 5 V of headroom for operation.
The ADR430/ADR431/ADR433/ ADR434/ADR435 XFET references are low noise solutions for 5 V systems.
The ADR430/ADR431/ADR433/ADR434/ADR435 family has the capability to source up to 30 mA of output current and sink up to −20 mA.
It also comes with a trim terminal to adjust the output voltage over a ±0.
5% range without compromising performance.
04500-001 PIN CONFIGURATIONS ADR430/ADR431 ADR433/ADR434 ADR435 DNC 1 VIN 2 NIC 3 GND 4 8 DNC TOP VIEW (Not to Scale) 7 COMP 6 VOUT 5 TRIM NOTES 1.
NIC = NOT INTERNALLY CONNECTED.
THIS PIN IS NOT CONNECTED INTERNALLY.
2.
DNC = DO NOT CONNECT.
DO NOT CONNECT TO THIS PIN.
Figure 1.
8-...


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