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ADR433ARZ-REEL7 Scheda tecnica(PDF) 1 Page - Analog Devices |
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ADR433ARZ-REEL7 Scheda tecnica(HTML) 1 Page - Analog Devices |
1 / 24 page Ultralow Noise XFET® Voltage References with Current Sink and Source Capability ADR430/ADR431/ADR433/ADR434/ADR435/ADR439 Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. 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 PIN CONFIGURATIONS NC = NO CONNECT ADR43x TOP VIEW (Not to Scale) TP 1 VIN 2 NC 3 GND 4 TP NC VOUT TRIM 8 7 6 5 Figure 1. 8-Lead MSOP (RM Suffix) NC = NO CONNECT ADR43x TOP VIEW (Not to Scale) TP 1 VIN 2 NC 3 GND 4 TP NC VOUT TRIM 8 7 6 5 Figure 2. 8-Lead SOIC (R Suffix) 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. The XFET references operate at lower current (800 µA) and supply headroom (2 V) than buried-Zener references. Buried- Zener references require more than 5 V headroom for operations. The ADR43x XFET references are the only low noise solutions for 5 V systems. The ADR43x series has the capability to source up to 30 mA and sink up to 20 mA of output current. It also comes with a TRIM terminal to adjust the output voltage over a 0.5% range without compromising performance. The ADR43x is available in the 8-lead mini SOIC and 8-lead SOIC packages. All versions are specified over the extended industrial tempera- ture range (−40°C to +125°C). Table 1. Selection Guide Model VOUT (V) Accuracy (mV) Temperature Coefficient (ppm/°C) ADR430B 2.048 ±1 3 ADR430A 2.048 ±3 10 ADR431B 2.500 ±1 3 ADR431A 2.500 ±3 10 ADR433B 3.000 ±1.4 3 ADR433A 3.000 ±4 10 ADR434B 4.096 ±1.5 3 ADR434A 4.096 ±5 10 ADR435B 5.000 ±2 3 ADR435A 5.000 ±6 10 ADR439B 4.500 ±2 3 ADR439A 4.500 ±5.4 10 |
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