Datasheet AD7988-1, AD7988-5 (Analog Devices) - 10

AD7988-1/AD7988-5 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS
VDD = 2.5 V, VREF = 5.0 V, VIO = 3.3 V, unless otherwise noted.
0 0 fS = 500kSPS fS = 100kSPS –20 fIN = 10kHz –20 fIN = 10kHz SNR = 91.17dB ) SNR = 86.7dB ) THD = –113.63dB THD = –110.4dB LE –40 LE –40 A SFDR = 110.30dB A SFDR = 103.9dB C C SINAD = 91.15dB SINAD = 86.6dB –60 –60 LL S LL S FU –80 FU –80 of of dB –100 dB ( –100 ( E E D D –120 –120 LITU LITU P P M –140 M –140 A A –160 –160 –180 –180 0 50 100 150 200 250
046
0 10 20 30 40 50
049
FREQUENCY (kHz) FREQUENCY (kHz)
10231- 10231- Figure 6. AD7988-5 FFT Plot, VREF = 5 V Figure 9. AD7988-1 FFT Plot, VREF = 2.5 V
0 1.25 f POSITIVE INL: +0.40 LSB S = 500kSPS NEGATIVE INL: –0.35 LSB –20 fIN = 10kHz 1.00 SNR = 86.8dB ) THD = –111.4dB LE –40 0.75 A SFDR = 105.9dB C SINAD = 86.8dB 0.50 –60 LL S 0.25 FU –80 B) S of (L 0 dB –100 L ( E IN –0.25 D –120 –0.50 LITU P M –140 A –0.75 –160 –1.00 –180 –1.25 0 50 100 150 200 250
047
0 16384 32768 49152 65536
010
FREQUENCY (kHz)
10231-
CODE
10231- Figure 7. AD7988-5 FFT Plot, VREF = 2.5 V Figure 10. Integral Nonlinearity vs. Code, VREF = 5 V
0 1.25 f POSITIVE INL: +0.45 LSB S = 100kSPS NEGATIVE INL: –0.29 LSB –20 fIN = 10kHz 1.00 SNR = 91.09dB ) THD = –113.12dB LE 0.75 –40 A SFDR = 110.30dB C SINAD = 91.05dB 0.50 –60 LL S ) 0.25 FU –80 B S of (L 0 dB –100 L ( IN E –0.25 D –120 –0.50 LITU P M –140 A –0.75 –160 –1.00 –180 –1.25 0 10 20 30 40 50
048
0 16384 32768 49152 65536
011
FREQUENCY (kHz) CODE
10231- 10231- Figure 8. AD7988-1 FFT Plot, VREF = 5 V Figure 11. Integral Nonlinearity vs. Code, VREF = 2.5 V Rev. F | Page 10 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT 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 INPUTS DRIVER AMPLIFIER CHOICE VOLTAGE REFERENCE INPUT POWER SUPPLY DIGITAL INTERFACE MODE, 3-WIRE MODE 4-WIRE CHAIN MODE APPLICATIONS INFORMATION INTERFACING TO BLACKFIN® DSP LAYOUT EVALUATING THE PERFORMANCE OF THE AD7988-1/AD7988-5 OUTLINE DIMENSIONS ORDERING GUIDE