Datasheet AD7356 (Analog Devices) - 9

AD7356 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 0 16,384 POINT FFT f 60,000 SAMPLE = 5MSPS –20 fIN = 1MHz SNR = 71.8dB S SINAD = 71.6dB 50,000 E THD = –83.5dB NC –40 RRE 40,000 –60 CCU dB O 30,000 F R O –80 BE 20,000 UM N –100 10,000
3 5 00 00 5- 5- 50
93 HITS 20 HITS
50
–120
06
0
06
0 250 500 750 1000 1250 1500 1750 2000 2249 2499 2044 2045 2046 2047 2048 2049 2050 FREQUENCY (kHz) CODE
Figure 3. Typical FFT Figure 6. Histogram of Codes for 65,000 Samples
1.0 73 0.8 72 0.6 71 0.4 B) S 70 L 0.2 R ( B) d 0 R ( 69 RRO N E S –0.2 68 DNL –0.4 67 –0.6
7
66
7
–0.8
02 03 5- 5- 50 50
–1.0
06 06
65 0 500 1000 1500 2000 2500 3000 3500 4000 0 1000 2000 3000 4000 5000 CODE ANALOG INPUT FREQUENCY (kHz)
Figure 4. Typical DNL Error Figure 7. SNR vs. Analog Input Frequency
1.0 –60 0.8 –65 0.6 0.4 –70 B) S L 0.2 B) R ( d ( 0 –75 RRO RR S E –0.2 P INL –80 –0.4 –0.6 –85
8 5
–0.8
02 03 5- 5- 50 50
–1.0
06 06
–90 0 500 1000 1500 2000 2500 3000 3500 4000 0 5 10 15 20 25 CODE SUPPLY RIPPLE FREQUENCY (MHz)
Figure 5. Typical INL Error Figure 8. PSRR vs. Supply Ripple Frequency with No Supply Decoupling Rev. B | Page 8 of 20 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION 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 DRIVING DIFFERENTIAL INPUTS Differential Amplifier Op Amp Pair VOLTAGE REFERENCE ADC TRANSFER FUNCTION MODES OF OPERATION NORMAL MODE PARTIAL POWER-DOWN MODE FULL POWER-DOWN MODE POWER-UP TIMES POWER vs. THROUGHPUT RATE SERIAL INTERFACE APPLICATION HINTS GROUNDING AND LAYOUT EVALUATING THE AD7356 PERFORMANCE OUTLINE DIMENSIONS ORDERING GUIDE