전자부품 데이터시트 검색엔진 |
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AD7688 데이터시트(PDF) 11 Page - Analog Devices |
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AD7688 데이터시트(HTML) 11 Page - Analog Devices |
11 / 24 page Data Sheet AD7988-1/AD7988-5 Rev. B | Page 11 of 24 CODE 0 16384 32768 49152 65536 1.00 –1.00 0.75 0.50 0.25 –0.25 –0.75 0 –0.50 POSITIVE INL: +0.18 LSB NEGATIVE INL: –0.21 LSB Figure 12. Differential Nonlinearity vs. Code, VREF = 5 V CODE 0 16384 32768 49152 65536 1.00 –1.00 0.75 0.50 0.25 –0.25 –0.75 0 –0.50 POSITIVE INL: +0.25 LSB NEGATIVE INL: –0.22 LSB Figure 13. Differential Nonlinearity vs. Code, VREF = 2.5 V 180k 0 0 0 0 0 0 22 CODE IN HEX 8003 8004 8005 8006 8007 8008 8009 800A 800B 800C 800D 800E 800F 1291 852 29 2 160k 140k 120k 100k 80k 60k 40k 20k 52720 162595 42731 Figure 14. Histogram of a DC Input at the Code Center, VREF = 5 V 60k 0 0 0 0 0 94 30 1 CODE IN HEX 50k 30k 10k 40k 20k 7FFA 7FFB 7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8006 2290 18848 50970 45198 12424 1217 Figure 15. Histogram of a DC Input at the Code Transition, VREF = 2.5 V 100 80 85 90 95 REFERENCE VOLTAGE (V) 16 12 13 14 15 SNR SINAD ENOB 2.25 2.75 3.25 3.75 4.25 4.75 5.25 Figure 16. SNR, SINAD, and ENOB vs. Reference Voltage 60k 0 0 0 0 0 590 11 19 CODE IN HEX 50k 30k 10k 40k 20k 7FFA 7FFB 7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003 8004 8005 8006 7285 37417 53412 31540 5807 512 Figure 17. Histogram of a DC Input at the Code Center, VREF = 2.5 V |
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