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ADR512 Fiches technique(PDF) 1 Page - Analog Devices |
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ADR512 Fiches technique(HTML) 1 Page - Analog Devices |
1 / 12 page 1.2 V Precision Low Noise Shunt Voltage Reference Data Sheet ADR512 Rev. A Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother 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 ©2003–2012 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Precision 1.200 V Voltage Reference Ultracompact 3 mm × 3 mm SOT-23 Package No External Capacitor Required Low Output Noise: 4 µV p-p (0.1 Hz to 10 Hz) Initial Accuracy: ±0.3% Max Temperature Coefficient: 60 ppm/°C Max Operating Current Range: 100 µA to 10 mA Output Impedance: 0.3 Ω Max Temperature Range: −40°C to +85°C APPLICATIONS Precision Data Acquisition Systems Battery-Powered Equipment: Cellular Phone, Notebook Computer, PDA, and GPS 3 V/5 V, 8-/12-Bit Data Converters Portable Medical Instruments Industrial Process Control Systems Precision Instruments PIN CONFIGURATION NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. V+ 1 V– 2 TRIM/NC 3 ADR512 TOP VIEW (Not to Scale) Figure 1. 3-Lead SOT-23 Table 1. Output Voltage (VO) Initial Accuracy Temperature Coefficient (ppm/°C) Model (mV) (%) ADR512ARTZ-REEL7 1.200 3.5 0.3 60 GENERAL DESCRIPTION Designed for space critical applications, the ADR512 is a low voltage (1.200 V), precision shunt-mode voltage reference in the ultracompact (3 mm × 3 mm) SOT-23 package. The ADR512 features low temperature drift (60 ppm/°C), high accuracy (±0.30%), and ultralow noise (4 µV p-p) performance. The ADR512’s advanced design eliminates the need for an external capacitor, yet it is stable with any capacitive load. The minimum operating current increases from a scant 100 µA to a maximum of 10 mA. This low operating current and ease of use make the ADR512 ideally suited for handheld battery-powered applications. A TRIM terminal is available on the ADR512 to provide adjustment of the output voltage over ±0.5% without affecting the temperature coefficient of the device. This feature provides users with the flexibility to trim out any system errors. ADR512 VOUT = 1.2V IQ IL + IQ RBIAS VS IL COUT (OPTIONAL) RBIAS = VS – VOUT IL + IQ Figure 2. Typical Operating Circuit |
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Description similaire - ADR512 |
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