Datasheet LTC2294 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Dual 12-Bit, 80Msps Low Power 3V ADC |
| 页数 / 页 | 24 / 7 — TYPICAL PERFOR A CE CHARACTERISTICS. SNR vs Input Frequency, –1dB,. SFDR … |
| 文件格式/大小 | PDF / 734 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS. SNR vs Input Frequency, –1dB,. SFDR vs Input Frequency, –1dB,
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LTC2294
W U TYPICAL PERFOR A CE CHARACTERISTICS SNR vs Input Frequency, –1dB, SFDR vs Input Frequency, –1dB, SNR and SFDR vs Sample Rate, 2V Range, 80Msps 2V Range, 80Msps 2V Range, fIN = 5MHz, –1dB
75 100 100 74 95 SFDR 73 90 72 90 71 80 85 70 SNR 80 SNR (dBFS) 69 SFDR (dBFS) 70 68 75 SNR AND SFDR (dBFS) 67 60 70 66 65 65 50 0 50 100 150 200 0 50 100 150 200 0 10 20 30 40 50 60 70 80 90 100 110 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) SAMPLE RATE (Msps) 2294 G10 2294 G11 2294 G12
SNR and SFDR vs Clock Duty SNR vs Input Level, fIN = 70MHz, SFDR vs Input Level, fIN = 70MHz, Cycle, 80Msps 2V Range, 80Msps 2V Range, 80Msps
95 80 120 SFDR: DCS ON dBFS 110 70 dBFS 90 100 60 90 SFDR: DCS OFF 85 80 50 dBc 70 dBc 80 40 60 100dBc SFDR REFERENCE LINE 50 30 75 40 SNR AND SFDR (dBFS) SNR (dBc AND dBFS) SFDR (dBc AND dBFS) SNR: DCS ON 20 30 70 20 SNR: DCS OFF 10 10 65 0 0 30 35 40 45 50 55 60 65 70 –70 –60 –50 –40 –30 –20 –10 0 –70 –60 –50 –40 –30 –20 –10 0 CLOCK DUTY CYCLE (%) INPUT LEVEL (dBFS) INPUT LEVEL (dBFS) 2294 G13 2294 G14 2294 G15
I I VDD vs Sample Rate, 5MHz Sine OVDD vs Sample Rate, 5MHz Sine Wave Input, –1dB Wave Input, –1dB, OVDD = 1.8V
165 14 155 12 145 10 (mA) (mA) 2V RANGE 135 8 I VDD 1V RANGE I OVDD 125 6 115 4 105 2 95 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 SAMPLE RATE (Msps) SAMPLE RATE (Msps) 2294 G16 2294 G17 2294fa 7
W U TYPICAL PERFOR A CE CHARACTERISTICS SNR vs Input Frequency, –1dB, SFDR vs Input Frequency, –1dB, SNR and SFDR vs Sample Rate, 2V Range, 80Msps 2V Range, 80Msps 2V Range, fIN = 5MHz, –1dB
75 100 100 74 95 SFDR 73 90 72 90 71 80 85 70 SNR 80 SNR (dBFS) 69 SFDR (dBFS) 70 68 75 SNR AND SFDR (dBFS) 67 60 70 66 65 65 50 0 50 100 150 200 0 50 100 150 200 0 10 20 30 40 50 60 70 80 90 100 110 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) SAMPLE RATE (Msps) 2294 G10 2294 G11 2294 G12
SNR and SFDR vs Clock Duty SNR vs Input Level, fIN = 70MHz, SFDR vs Input Level, fIN = 70MHz, Cycle, 80Msps 2V Range, 80Msps 2V Range, 80Msps
95 80 120 SFDR: DCS ON dBFS 110 70 dBFS 90 100 60 90 SFDR: DCS OFF 85 80 50 dBc 70 dBc 80 40 60 100dBc SFDR REFERENCE LINE 50 30 75 40 SNR AND SFDR (dBFS) SNR (dBc AND dBFS) SFDR (dBc AND dBFS) SNR: DCS ON 20 30 70 20 SNR: DCS OFF 10 10 65 0 0 30 35 40 45 50 55 60 65 70 –70 –60 –50 –40 –30 –20 –10 0 –70 –60 –50 –40 –30 –20 –10 0 CLOCK DUTY CYCLE (%) INPUT LEVEL (dBFS) INPUT LEVEL (dBFS) 2294 G13 2294 G14 2294 G15
I I VDD vs Sample Rate, 5MHz Sine OVDD vs Sample Rate, 5MHz Sine Wave Input, –1dB Wave Input, –1dB, OVDD = 1.8V
165 14 155 12 145 10 (mA) (mA) 2V RANGE 135 8 I VDD 1V RANGE I OVDD 125 6 115 4 105 2 95 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 SAMPLE RATE (Msps) SAMPLE RATE (Msps) 2294 G16 2294 G17 2294fa 7