Datasheet AD7266 (Analog Devices) - 10

AD7266 TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, unless otherwise noted.
–60 INTERNAL REFERENCE 4096 POINT FFT –10 VDD = 5V, VDRIVE = 3V F –70 SAMPLE = 2MSPS FIN = 52kHz SINAD = 71.4dB –30 THD = –84.42dB –80 DIFFERENTIAL MODE EXTERNAL REFERENCE –50 –90 ) RR (dB) (dB S P –70 –100 –110 –90 100mV p-p SINE WAVE ON AVDD NO DECOUPLING SINGLE-ENDED MODE –120 –110
06
0 200 400 600 800 1000 1200 1400 1600 1800 2000
0
0 100 200 300 400 500 600 700 800 900 1000
3-
SUPPLY RIPPLE FREQUENCY (kHz)
60
FREQUENCY (kHz)
04603-003 04 Figure 4. PSRR vs. Supply Ripple Frequency Without Supply Decoupling Figure 7. FFT
–50 1.0 VDD = 5V VDD = 5V, VDRIVE = 3V –55 0.8 DIFFERENTIAL MODE –60 0.6 –65 0.4 ) B –70 0.2 –75 0 RROR (LS –80 –0.2 OLATION (dB) IS –85 DNL E –0.4 –90 –0.6 –95 –0.8 –100 –1.0 0 100 200 300 400 500 600 700 800 900 1000 0 500 1000 1500 2000 2500 3000 3500 4000 NOISE FREQUENCY (kHz)
04603-004
CODE
04603-007 Figure 5. Channel-to-Channel Isolation Figure 8. Typical DNL
74 1.0 V V DD = 5V RANGE = 0 TO VREF DD = 5V, VDRIVE = 3V DIFFERENTIAL MODE DIFFERENTIAL MODE 0.8 72 0.6 VDD = 3V 70 DIFFERENTIAL MODE 0.4 ) B 0.2 68 0 66 INAD (dB) RROR (LS –0.2 S INL E 64 –0.4 –0.6 62 –0.8 60 –1.0 0 500 1000 1500 2000 2500 3000 0 500 1000 1500 2000 2500 3000 3500 4000 INPUT FREQUENCY (kHz) CODE
04603-005 04603-008 Figure 6. SINAD vs. Analog Input Frequency for Various Supply Voltages Figure 9. Typical INL Rev. B | Page 9 of 28 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ANALOG INPUT STRUCTURE ANALOG INPUTS Single-Ended Mode Differential Mode Driving Differential Inputs Using an Op Amp Pair Pseudo Differential Mode ANALOG INPUT SELECTION OUTPUT CODING TRANSFER FUNCTIONS DIGITAL INPUTS VDRIVE MODES OF OPERATION NORMAL MODE PARTIAL POWER-DOWN MODE FULL POWER-DOWN MODE POWER-UP TIMES POWER vs. THROUGHPUT RATE SERIAL INTERFACE MICROPROCESSOR INTERFACING AD7266 TO ADSP-218x AD7266 TO ADSP-BF53x AD7266 TO TMS320C541 AD7266 TO DSP563xx APPLICATION HINTS GROUNDING AND LAYOUT PCB DESIGN GUIDELINES FOR LFCSP EVALUATING THE AD7266 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE