Datasheet AD7980 (Analog Devices) - 10

Data Sheet AD7980 TYPICAL PERFORMANCE CHARACTERISTICS
VDD = 2.5 V, VREF = 5.0 V, VIO = 3.3 V, unless otherwise noted.
1.25 1.00 POSITIVE INL: +0.33 LSB POSITIVE INL: +0.18 LSB 1.00 NEGATIVE INL: –0.39 LSB NEGATIVE INL: –0.21 LSB 0.75 0.75 0.50 0.50 0.25 ) 0.25 B B) S LS L 0 ( 0 L ( IN –0.25 DNL –0.25 –0.50 –0.50 –0.75 –0.75 –1.00
036 039
–1.25
06392-
–1.00
06392-
0 16384 32768 49152 65536 0 16384 32768 49152 65536 CODE CODE
Figure 6. Integral Nonlinearity vs. Code, REF = 5 V Figure 9. Differential Nonlinearity vs. Code, REF = 5 V
1.25 1.00 POSITIVE INL: +0.47 LSB POSITIVE INL: +0.25 LSB 1.00 NEGATIVE INL: –0.26 LSB NEGATIVE INL: –0.22 LSB 0.75 0.75 0.50 0.50 0.25 ) 0.25 B B) S LS L 0 ( 0 L ( IN –0.25 DNL –0.25 –0.50 –0.50 –0.75 –0.75 –1.00
060 061
–1.25
06392-
–1.00
06392-
0 16384 32768 49152 65536 0 16384 32768 49152 65536 CODE CODE
Figure 7. Integral Nonlinearity vs. Code, REF = 2.5 V Figure 10. Differential Nonlinearity vs. Code, REF = 2.5 V
0 0 fS = 1 MSPS fS = 1 MSPS –20 fIN = 10kHz –20 fIN = 10kHz SNR = 91.27dB SNR = 86.8dB ) ) THD = –114.63dB THD = –111.4dB LE –40 LE –40 A SFDR = 110.10dB A SFDR = 105.9dB C SINAD = 91.25dB C SINAD = 86.8dB –60 –60 LL S LL S FU –80 FU –80 of of dB dB ( –100 ( –100 E E D D –120 –120 LITU LITU P P M –140 M –140 A A –160 –160
038 058
–180
06392-
–180
06392-
0 100 200 300 400 500 0 100 200 300 400 500 FREQUENCY (kHz) FREQUENCY (kHz)
Figure 8. FFT Plot, REF = 5 V Figure 11. FFT Plot, REF = 2.5 V Rev. D | Page 9 of 28 Document Outline FEATURES APPLICATIONS APPLICATION DIAGRAM EXAMPLE GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION Transfer Functions TYPICAL CONNECTION DIAGRAM ANALOG INPUT DRIVER AMPLIFIER CHOICE VOLTAGE REFERENCE INPUT POWER SUPPLY DIGITAL INTERFACE MODE, 3-CS WIRE, WITHOUT BUSY INDICATOR CS MODE 3-WIRE WITH BUSY INDICATOR CS MODE 4-WIRE, WITHOUT BUSY INDICATOR CS MODE 4-WIRE WITH BUSY INDICATOR CS CHAIN MODE, WITHOUT BUSY INDICATOR CS CHAIN MODE WITH BUSY INDICATOR APPLICATION HINTS LAYOUT EVALUATING THE PERFORMANCE OF THE AD7980 OUTLINE DIMENSIONS ORDERING GUIDE NOTES NOTES NOTES