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ADR540 Arkusz danych(PDF) 1 Page - Analog Devices |
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ADR540 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 16 page High Precision Shunt Mode Voltage References ADR520/ADR525/ADR530/ADR540/ADR550 Rev. A 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 © 2003 Analog Devices, Inc. All rights reserved. FEATURES Ultracompact SC70 and SOT-23 packages Temperature coefficient: 40 ppm/°C (max) 2× the tempco improvement over the LM4040 Pin compatible with LM4040/LM4050 Initial accuracy: ±0.2% Low output voltage noise: 14 µV p-p @ 2.5 V output No external capacitor required Operating current range: 50 µA to 10 mA Industrial temperature range: −40°C to +85°C APPLICATIONS Portable, battery-powered equipment Automotive Power supplies Data acquisition systems Instrumentation and process control Energy measurement Table 1. Selection Guide Part Voltage (V) Initial Accuracy (%) Temperature Coeffecient (ppm/°C) ADR520A 2.048 ±0.4 70 ADR520B 2.048 ±0.2 40 ADR525A 2.5 ±0.4 70 ADR525B 2.5 ±0.2 40 ADR530A 3.0 ±0.4 70 ADR530B 3.0 ±0.2 40 ADR540A 4.096 ±0.4 70 ADR540B 4.096 ±0.2 40 ADR550A 5.0 ±0.4 70 ADR550B 5.0 ±0.2 40 PIN CONFIGURATION ADR520/ ADR525/ ADR530/ ADR540/ ADR550 V+ 1 V– 2 TRIM 3 Figure 1. 3-Lead SC70 (KS) and 3-Lead SOT-23 (RT) GENERAL DESCRIPTION Designed for space-critical applications, the ADR520/ADR525/ ADR530/ADR540/ADR550 are high precision shunt voltage references, housed in ultrasmall SC70 and SOT-23 packages. These references feature low temperature drift of 40 ppm/°C, an initial accuracy of better than 0.2%, and ultralow output noise of 14 µV p-p. Available in output voltages of 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V, the ADR5xx’s advanced design eliminates the need for compensation by an external capacitor, yet the references are stable with any capacitive load. The minimum operating current increases from a mere 50 µA to a maximum of 10 mA. This low operating current and ease of use make these references ideally suited for handheld, battery-powered applications. A TRIM terminal is available on the ADR5xx to allow adjustment of the output voltage over a ±0.5% range, without affecting the temperature coefficient of the device. This feature provides users with the flexibility to trim out any system errors. |
Podobny numer części - ADR540 |
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Podobny opis - ADR540 |
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