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AD7724 Datasheet(PDF) 8 Page - Analog Devices |
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AD7724 Datasheet(HTML) 8 Page - Analog Devices |
8 / 16 page REV. B AD7724 –8– (AVDD = DVDD = 5.0 V, TA = 25 C; CLKIN = 13 MHz ac-coupled sine wave, AIN = 20 kHz, Bipolar Mode; VIN(+) = 0 V to 2.5 V, VIN(–) = 1.25 V unless otherwise noted) INPUT LEVEL – dB 110 100 50 –40 –30 0 –20 –10 90 80 70 60 SFDR S/ (N+D) TPC 1. S/(N+D) and SFDR vs. Analog Input Level INPUT FREQUENCY – kHz –85 –90 –115 0 20 100 40 60 80 –95 –100 –105 –110 THD SNR SFDR VIN (+) = VIN(–) = 1.25V p-p VCM = 2.5V TPC 4. SNR, THD, and SFDR vs. Input Frequency TEMPERATURE – °C –94 –116 –50 –25 100 025 50 75 –96 –108 –110 –112 –114 –100 –102 –106 –104 –98 THD 3RD 4TH 2ND TPC 7. THD vs. Temperature –Typical Performance Characteristics OUTPUT DATA RATE – kSPS 84 92 85 88 89 90 91 86 87 0 50 300 100 150 200 250 AIN = 1/5 BW TPC 2. S/(N+D) vs. Output Sample Rate OUTPUT DATA RATE – kSPS 84 92 85 88 89 90 91 86 87 0 50 300 100 150 200 250 AIN = 1/5 BW VIN (+) = VIN(–) = 1.25V p-p VCM = 2.5V TPC 5. S/(N+D) vs. Output Sample Rate CODES 5000 0 n–3n–2 n+3 n–1 n n+1 n+2 4500 2000 1500 1000 500 4000 3500 2500 3000 VIN(+) = VIN(–) CLKIN = 13MHz 8k SAMPLES TPC 8. Histogram of Output Codes with DC Input INPUT FREQUENCY – kHz –85 –90 –115 0 20 100 40 60 80 –95 –100 –105 –110 SNR SFDR THD TPC 3. SNR, THD, and SFDR vs. Input Frequency TEMPERATURE – °C 92.0 91.5 88.0 –50 0 100 50 90.0 89.5 88.5 89.0 91.0 90.5 TPC 6. SNR vs. Temperature CODE 1.0 0.8 –1.0 0 20000 65535 40000 –0.4 –0.8 –0.6 0 –0.2 0.6 0.2 0.4 TPC 9. Differential Nonlinearity |
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