Datasheet LTC2253, LTC2252 (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | 12-Bit, 125Msps Low Power 3V ADCs |
| 页数 / 页 | 24 / 9 — TYPICAL PERFOR A CE CHARACTERISTICS. LTC2252: SFDR vs Input. LTC2252: SNR … |
| 文件格式/大小 | PDF / 639 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS. LTC2252: SFDR vs Input. LTC2252: SNR and SFDR vs. Frequency, –1dB, 2V Range,
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LTC2253/LTC2252
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2252: SFDR vs Input LTC2252: SNR and SFDR vs Frequency, –1dB, 2V Range, Sample Rate, 2V Range, LTC2252: SNR vs Input Level, 105Msps fIN = 5MHz, –1dB fIN = 70MHz, 2V Range, 105Msps
95 90 80 SFDR 70 90 dBFS 80 60 85 50 SNR dBc 80 70 40 SFDR (dBFS) 30 75 SNR AND SFDR (dBFS) SNR (dBc AND dBFS) 60 20 70 10 65 50 0 0 50 100 150 200 250 300 350 0 20 40 60 80 100 120 140 –60 –50 –40 –30 –20 –10 0 INPUT FREQUENCY (MHz) SAMPLE RATE (Msps) INPUT LEVEL (dBFS) 22532 G26 22532 G27 22532 G28
LTC2252: SFDR vs Input Level, LTC2252: IVDD vs Sample Rate, fIN = 70MHz, 2V Range, 105Msps 5MHz Sine Wave Input, –1dB
110 120 100 dBFS 115 90 110 80 105 70 dBc 2V RANGE 60 100 (mA) 50 95 I VDD 40 1V RANGE 90 SFDR (dBc AND dBFS) 30 85 20 10 80 0 75 –60 –50 –40 –30 –20 –10 0 0 20 40 60 80 100 120 INPUT LEVEL (dBFS) SAMPLE RATE (Msps) 22532 G29 22532 G30
LTC2252: IOVDD vs Sample Rate, 5MHz Sine Wave Input, –1dB, LTC2252: SNR vs SENSE, OVDD = 1.8V fIN = 5MHz, –1dB
7 72 6 71 70 5 69 4 (mA) 68 3 I OVDD SNR (dBFS) 67 2 66 1 65 0 64 0 20 40 60 80 100 120 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 SAMPLE RATE (Msps) SENSE PIN (V) 22532 G31 22532 G33 22532fa 9
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2252: SFDR vs Input LTC2252: SNR and SFDR vs Frequency, –1dB, 2V Range, Sample Rate, 2V Range, LTC2252: SNR vs Input Level, 105Msps fIN = 5MHz, –1dB fIN = 70MHz, 2V Range, 105Msps
95 90 80 SFDR 70 90 dBFS 80 60 85 50 SNR dBc 80 70 40 SFDR (dBFS) 30 75 SNR AND SFDR (dBFS) SNR (dBc AND dBFS) 60 20 70 10 65 50 0 0 50 100 150 200 250 300 350 0 20 40 60 80 100 120 140 –60 –50 –40 –30 –20 –10 0 INPUT FREQUENCY (MHz) SAMPLE RATE (Msps) INPUT LEVEL (dBFS) 22532 G26 22532 G27 22532 G28
LTC2252: SFDR vs Input Level, LTC2252: IVDD vs Sample Rate, fIN = 70MHz, 2V Range, 105Msps 5MHz Sine Wave Input, –1dB
110 120 100 dBFS 115 90 110 80 105 70 dBc 2V RANGE 60 100 (mA) 50 95 I VDD 40 1V RANGE 90 SFDR (dBc AND dBFS) 30 85 20 10 80 0 75 –60 –50 –40 –30 –20 –10 0 0 20 40 60 80 100 120 INPUT LEVEL (dBFS) SAMPLE RATE (Msps) 22532 G29 22532 G30
LTC2252: IOVDD vs Sample Rate, 5MHz Sine Wave Input, –1dB, LTC2252: SNR vs SENSE, OVDD = 1.8V fIN = 5MHz, –1dB
7 72 6 71 70 5 69 4 (mA) 68 3 I OVDD SNR (dBFS) 67 2 66 1 65 0 64 0 20 40 60 80 100 120 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 SAMPLE RATE (Msps) SENSE PIN (V) 22532 G31 22532 G33 22532fa 9