Datasheet AD9225 (Analog Devices) - 7

AD9225–Typical Performance Characteristics (AVDD, DRVDD = 5 V, fS = 25 MHz (50% Duty Cycle), unless otherwise noted.) 2.00 1.00 1.50 0.75 1.00 0.50 0.50 0.25 0 0.00 Title 0.50 –0.25 –0.50 1.00 –0.75 1.50 –1.00 2.00 0 511 1022 1533 2044 2555 3066 3577 4095 0 511 1022 1533 2044 2555 3066 3577 4095 Title TITLE
TPC 1. Typical DNL TPC 4. Typical INL
75 70 0.5dB 2V INT REF 0.5dB INT 1V 70 65 6dB 2V INT REF 6dB INT 1V 65 60 SINAD (dB) 60 SINAD (dB) 55 55 50 20dB INT 1V 20dB 2V INT REF 50 45 1 10 1 10 FREQUENCY (MHz) FREQUENCY (MHz)
TPC 2. SINAD vs. Input Frequency (Input Span = 4.0 V p-p, TPC 5. SINAD vs. Input Frequency (Input Span = 2 V p-p V V CM = 2.5 V Differential Input) CM = 2.5 V Differential Input)
–60 –60 20dB INT 1V –65 20.0dB 2V INT REF –65 –70 –70 THD (dB) THD (dB) –75 –75 6dB INT 1V 6.0dB 2V INT REF –80 –80 0.5dB INT 1V 0.5dB 2V INT REF –85 –85 1 10 1 10 FREQUENCY (MHz) FREQUENCY (MHz)
TPC 3. THD vs. Input Frequency (Input Span = 4.0 V p-p, TPC 6. THD vs. Input Frequency (Input Span = 2 V p-p, V V CM = 2.5 V Differential Input) CM = 2.5 V Differential Input) –6– Rev. C 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