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ADR421AR bảng dữ liệu(PDF) 1 Page - Analog Devices |
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ADR421AR bảng dữ liệu(HTML) 1 Page - Analog Devices |
1 / 16 page 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. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a ADR420/ADR421/ADR423/ADR425 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 © Analog Devices, Inc., 2002 Ultraprecision Low Noise, 2.048 V/2.500 V/ 3.00 V/5.00 V XFET® Voltage References PIN CONFIGURATION Surface-Mount Packages 8-Lead SOIC 8-Lead Mini_SOIC TOP VIEW (Not to Scale) 8 7 6 5 1 2 3 4 NIC = NO INTERNAL CONNECTION TP = TEST PIN (DO NOT CONNECT) TP VIN NIC GND TP NIC VOUT TRIM ADR42x FEATURES Low Noise (0.1 Hz to 10 Hz) ADR420: 1.75 V p-p ADR421: 1.75 V p-p ADR423: 2.0 V p-p ADR425: 3.4 V p-p Low Temperature Coefficient: 3 ppm/ C Long-Term Stability: 50 ppm/1000 Hours Load Regulation: 70 ppm/mA Line Regulation: 35 ppm/V Low Hysteresis: 40 ppm Typical Wide Operating Range ADR420: 4 V to 18 V ADR421: 4.5 V to 18 V ADR423: 5 V to 18 V ADR425: 7 V to 18 V Quiescent Current: 0.5 mA Maximum High Output Current: 10 mA Wide Temperature Range: –40 C to +125 C APPLICATIONS Precision Data Acquisition Systems High-Resolution Converters Battery-Powered Instrumentation Portable Medical Instruments Industrial Process Control Systems Precision Instruments Optical Network Control Circuits GENERAL DESCRIPTION The ADR42x series are ultraprecision second-generation XFET voltage references featuring low noise, high accuracy, and excellent long-term stability in a SOIC and Mini_SOIC footprints. Patented temperature drift curvature correction technique and XFET (eXtra implanted junction FET) technology minimize nonlinearity of the voltage change with temperature. The XFET architecture offers superior accuracy and thermal hysteresis to the bandgap references. It also operates at lower power and lower supply headroom than the Buried Zener references. The superb noise, stable, and accurate characteristics of ADR42x make them ideal for precision conversion applications such as optical network and medical equipment. The ADR42x trim terminal can also be used to adjust the output voltage over a ±0.5% range without compromising any other performance. The ADR42x series voltage references offer two electrical grades and are specified over the extended industrial temperature range of –40 °C to +125°C. Devices are available in 8-lead SOIC-8 or 30% smaller 8-lead Mini_SOIC-8 packages. XFET is a registered trademark of Analog Devices, Inc. Table I. ADR42x Products Output Initial ADR420 Voltage Accuracy Tempco Products VO mV % ppm/ °C ADR420 2.048 1, 3 0.05, 0.15 3, 10 ADR421 2.50 1, 3 0.04, 0.12 3, 10 ADR423 3.00 1.5, 4 0.04, 0.12 3, 10 ADR425 5.00 2, 6 0.04, 0.12 3, 10 |
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Mô tả tương tự - ADR421AR |
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