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AD9286 데이터시트(PDF) 1 Page - Analog Devices |
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AD9286 데이터시트(HTML) 1 Page - Analog Devices |
1 / 28 page 8-Bit, 500 MSPS, 1.8 V Analog-to-Digital Converter (ADC) AD9286 Rev. 0 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 ©2011 Analog Devices, Inc. All rights reserved. FEATURES Single 1.8 V supply operation SNR: 49.3 dBFS at 200 MHz input at 500 MSPS SFDR: 65 dBc at 200 MHz input at 500 MSPS Low power: 315 mW at 500 MSPS On-chip interleaved clocking On-chip reference and track-and-hold 1.2 V p-p analog input range for each channel Differential input with 500 MHz bandwidth LVDS-compliant digital output On-chip voltage reference and sample-and-hold circuit DNL: ±0.2 LSB Serial port control options Interleaved clock timing adjustment Offset binary, Gray code, or twos complement data format Optional clock duty cycle stabilizer Built-in selectable digital test pattern generation Pin-programmable power-down function Available in 48-lead LFCSP APPLICATIONS Battery-powered instruments Handheld scope meters Low cost digital oscilloscopes OTS: video over fiber GENERAL DESCRIPTION The AD9286 is an 8-bit, monolithic sampling, analog-to-digital converter (ADC) that supports interleaved operation and is optimized for low cost, low power, and ease of use. Each ADC operates at up to a 500 MSPS conversion rate with outstanding dynamic performance. The AD9286 takes a single sample clock and, with an on-chip clock divider, time interleaves the two ADC cores (each running at one-half the clock frequency) to achieve the rated 500 MSPS. By using the SPI, the user can accurately adjust the timing of the sampling edge per ADC to minimize the image spur energy. The ADC requires a single 1.8 V supply and an encode clock for full performance operation. No external reference components are required for many applications. The digital outputs are LVDS compatible. The AD9286 is available in a Pb-free, 48-lead LFCSP that is specified over the industrial temperature range of −40°C to +85°C. PRODUCT HIGHLIGHTS 1. Integrated 8-Bit, 500 MSPS ADC. 2. Single 1.8 V Supply Operation with LVDS Outputs. 3. Power-Down Option Controlled via a Pin-Programmable Setting. FUNCTIONAL BLOCK DIAGRAM AD9286 CLK– VIN1+ VIN1– VREF VCM ADC ADC CLOCK MANAGEMENT CLK+ AUXCLK+ AUXCLK– VIN2– VIN2+ ×1.5 1.0V VREF REF SELECT DCO GENERATION DCO+ DCO– RBIAS AUXCLKEN AGND AVDD DRVDD DRGND SPI SDIO/ PWDN OE SCLK CSB D7+ (MSB), D7– (MSB) D0+ (LSB), D0– (LSB) Figure 1. |
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