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AD7450ARMZ-REEL7 Datasheet(PDF) 9 Page - Analog Devices |
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AD7450ARMZ-REEL7 Datasheet(HTML) 9 Page - Analog Devices |
9 / 22 page AD7450 –9– VREF 1 0 –9 0.25 0.75 3.50 1.25 1.75 2.25 2.75 3.25 –5 –6 –7 –8 –2 –4 –3 –1 VDD = 3.3V f S = 833kSPS VDD = 5V f S = 1MSPS TPC 12. Change in Zero-Code Error vs. Reference Voltage VDD = 5 V and 3.3 V* 12 11 10 9 8 7 6 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 VREF VDD = 5V fS = 1MSPS VDD = 3.3V fS = 833kSPS TPC 15. Change in ENOB vs. Refer- ence Voltage VDD = 5 V and 3.3 V* 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 VREF POSITIVE INL NEGATIVE INL TPC 10. Change in INL vs. Reference Voltage VDD = 5 V CODE 8,000 7,000 4,000 0 5,000 9,000 3,000 10,000 2,000 1,000 6,000 2044 2046 2047 2048 2049 2045 10,000 CODES VIN = VIN– 10,000 CONVERSIONS fS = 1MSPS TPC 13. Histogram of the Output Codes with a DC Input for VDD = 5 V FREQUENCY – kHz 90 0 10 20 30 40 50 60 70 80 10 10,000 100 1,000 VDD = 5V VDD = 3V TPC 16. CMRR vs. Input Frequency for VDD = 5 V and 3 V VREF 0 0.6 1.2 1.8 2.4 1.0 0.5 –1.0 0 –0.5 1.5 –1.5 2.0 NEGATIVE INL POSITIVE INL TPC 11. Change in INL vs. Reference Voltage VDD = 3.3 V* 90 CODES 71 CODES CODE 8,000 7,000 4,000 0 5,000 9,000 3,000 10,000 2,000 1,000 6,000 2044 2046 2047 2048 2049 2045 9,839 CODES VIN = VIN– 10,000 CONVERSIONS fS = 833kSPS TPC 14. Histogram of the Output Codes with a DC Input for VDD = 3 V *See References section. Rev. A |
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