Datasheet AD9225 (Analog Devices) - 2

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Technical Articles
• Correlating High-Speed ADC Performance to Multicarrier
DOCUMENTATION
3G Requirements
Application Notes
• DNL and Some of its Effects on Converter Performance • AN-1142: Techniques for High Speed ADC PCB Layout • MS-2210: Designing Power Supplies for High Speed ADC • AN-501: Aperture Uncertainty and ADC System Performance
DESIGN RESOURCES
• AN-715: A First Approach to IBIS Models: What They Are • AD9225 Material Declaration and How They Are Generated • PCN-PDN Information • AN-737: How ADIsimADC Models an ADC • Quality And Reliability • AN-741: Little Known Characteristics of Phase Noise • Symbols and Footprints • AN-742: Frequency Domain Response of Switched- Capacitor ADCs
DISCUSSIONS
• AN-756: Sampled Systems and the Effects of Clock Phase View all AD9225 EngineerZone Discussions. Noise and Jitter • AN-827: A Resonant Approach to Interfacing Amplifiers to
SAMPLE AND BUY
Switched-Capacitor ADCs • AN-835: Understanding High Speed ADC Testing and Visit the product page to see pricing options. Evaluation
Data Sheet TECHNICAL SUPPORT
• AD9225: Complete, 12-Bit, 25 MSPS Monolithic A/D Submit a technical question or find your regional support Converter Data Sheet number.
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Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS DC SPECIFICATIONS AC SPECIFICATIONS DIGITAL SPECIFICATIONS SWITCHING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION PIN FUNCTION DESCRIPTIONS TERMINOLOGY Integral Nonlinearity (INL) Differential Nonlinearity (DNL, No Missing Codes) Zero Error Gain Error Temperature Drift Power Supply Rejection Aperture Jitter Aperture Delay Signal-to-Noise and Distortion Ratio (S/N+D, SINAD) Effective Number of Bits (ENOB) Total Harmonic Distortion (THD) Signal-to-Noise Ratio (SNR) Spurious-Free Dynamic Range (SFDR) TYPICAL PERFORMANCE CHARACTERISTICS INTRODUCTION ANALOG INPUT AND REFERENCE OVERVIEW ANALOG INPUT OPERATION REFERENCE OPERATION DRIVING THE ANALOG INPUTS SINGLE-ENDED MODE OF OPERATION DC COUPLING AND INTERFACE ISSUES Simple Op Amp Buffer Op Amp with DC Level Shifting AC COUPLING AND INTERFACE ISSUES Simple AC Interface Alternative AC Interface OP AMP SELECTION GUIDE DIFFERENTIAL MODE OF OPERATION REFERENCE CONFIGURATIONS USING THE INTERNAL REFERENCE Single-Ended Input with 0 to 2 3 VREF Range Resistor Programmable Reference USING AN EXTERNAL REFERENCE Variable Input Span with VCM = 2.5 V Single-Ended Input with 0 to 2 ¥ VREF Range DIGITAL INPUTS AND OUTPUTS Digital Outputs Out-Of-Range (OTR) Digital Output Driver Considerations (DRVDD) Clock Input and Considerations Direct IF Down Conversion Using the AD9225 GROUNDING AND DECOUPLING Analog and Digital Grounding Analog and Digital Driver Supply Decoupling OUTLINE DIMENSIONS Ordering Guide REVISION HISTORY