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AD9284 데이터시트(PDF) 1 Page - Analog Devices |
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AD9284 데이터시트(HTML) 1 Page - Analog Devices |
1 / 25 page 8-Bit, 250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC) Data Sheet AD9284 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 ©2011–2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES Single 1.8 V supply operation SNR: 49.3 dBFS at 200 MHz input at 250 MSPS SFDR: 65 dBc at 200 MHz input at 250 MSPS Low power: 314 mW at 250 MSPS 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 DNL: ±0.2 LSB Serial port control options 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 Communications Diversity radio systems I/Q demodulation systems Battery-powered instruments Handheld scope meters Low cost digital oscilloscopes OTS: video over fiber GENERAL DESCRIPTION The AD9284 is a dual 8-bit, monolithic sampling, analog-to-digital converter (ADC) that supports simultaneous operation and is optimized for low cost, low power, and ease of use. Each ADC operates at up to a 250 MSPS conversion rate with outstanding dynamic performance. 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 AD9284 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 Dual 8-Bit, 250 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 AD9284 CLK+ CLK– VIN+A VIN–A VREF VCM ADC ADC SPI CLOCK MANAGEMENT VIN–B VIN+B SDIO/ PWDN OE SCLK CSB ×1.5 1.0V VREF REF SELECT D7+ (MSB), D7– (MSB) D0+ (LSB), D0– (LSB) (CHANNEL A) D7+ (MSB), D7– (MSB) D0+ (LSB), D0– (LSB) (CHANNEL B) DCO GENERATION DCO+ DCO– RBIAS AGND AVDD DRVDD DRGND Figure 1. |
유사한 부품 번호 - AD9284_13 |
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유사한 설명 - AD9284_13 |
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