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ADR280ART-R2 データシート(PDF) 1 Page - Analog Devices |
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ADR280ART-R2 データシート(HTML) 1 Page - Analog Devices |
1 / 12 page 1.2 V Ultralow Power High PSRR Voltage Reference ADR280 Rev. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2002–2007 Analog Devices, Inc. All rights reserved. FEATURES 1.2 V precision output Excellent line regulation: 2 ppm/V typical High power supply ripple rejection: –80 dB at 220 Hz Ultralow power supply current: 16 μA maximum Temperature coefficient: 40 ppm/°C maximum Low noise, 12.5 nV/√Hz typical Operating supply range, 2.4 V to 5.5 V Compact 3-lead SOT-23 and SC70 packages APPLICATIONS List GSM, GPRS, 3G mobile stations Portable battery-operated electronics Low voltage converter references Wireless devices GENERAL DESCRIPTION The ADR280 is a 1.2 V band gap core reference with excellent line regulation and power supply rejection designed specifically for applications experiencing heavy dynamic supply variations, such as data converter references in GSM, GPRS, and 3G mobile station applications. Devices such as the AD6535 that have an analog baseband IC with on-board baseband, audio codecs, voltage regulators, and battery chargers rely on the ability of the ADR280 to reject input battery voltage variations during RF power amplifier activity. In addition to mobile stations, the ADR280 is suitable for a variety of general-purpose applications. Most band gap refer- ences include internal gain for specific outputs, which simplifies the user’s design, but compromises on the cost, form factor, and flexibility. The ADR280, on the other hand, optimizes the band gap core voltage and allows users to tailor the voltage, current, or transient response by simply adding their preferred op amps. The ADR280 operates on a wide supply voltage range from 2.4 V to 5.5 V. It is available in compact 3-lead SOT-23 and SC70 packages. The device is specified over the extended indus- trial temperature range of −40°C to +85°C. PIN CONFIGURATIONS V+ 1 VOUT 2 V– 3 ADR280 Figure 1. 3-Lead SOT-23 (RT Suffix) VOUT 1 V+ 2 V– 3 ADR280 Figure 2. 3-Lead SC70 (KS Suffix) 15 –15 –10 –5 0 5 10 3V TO 5V TEMPERATURE (°C) –40 –20 0 20 40 60 80 100 Figure 3. Line Regulation vs. Temperature |
同様の部品番号 - ADR280ART-R2 |
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同様の説明 - ADR280ART-R2 |
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