Datasheet LTC2270 (Analog Devices) - 10
| 制造商 | Analog Devices |
| 描述 | 16-Bit, 20Msps Low Noise Dual ADC |
| 页数 / 页 | 36 / 10 — TYPICAL PERFORMANCE CHARACTERISTICS. 2nd, 3rd Harmonic vs Input. SNR vs … |
| 文件格式/大小 | PDF / 593 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. 2nd, 3rd Harmonic vs Input. SNR vs Input Frequency, –1dBFS,. Frequency, –1dBFS, 20Msps,
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LTC2270
TYPICAL PERFORMANCE CHARACTERISTICS 2nd, 3rd Harmonic vs Input 2nd, 3rd Harmonic vs Input SNR vs Input Frequency, –1dBFS, Frequency, –1dBFS, 20Msps, Frequency, –1dBFS, 20Msps, 20Msps, 2.1V Range 2.1V Range 1.05V Range
85 105 105 100 100 3RD 84 95 95 SINGLE-ENDED 83 ENCODE 3RD 90 90 2ND 82 85 85 SNR (dBFS) DIFFERENTIAL 2ND 81 ENCODE 80 80 80 2ND AND 3RD HARMONIC (dBFS) 2ND AND 3RD HARMONIC (dBFS) 75 75 79 70 70 0 20 40 60 80 100 120 140 0 20 40 60 80 100 120 140 0 20 40 60 80 100 120 140 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) 2270 G10 2270 G11 2270 G12
IVDD vs Sample Rate, 5MHz, IOVDD vs Sample Rate, 5MHz, SFDR vs Input Level, fIN = 5MHz, –1dBFS Sine Wave Input on –1dBFS Sine Wave Input on 20Msps, 2.1V Range Each Channel Each Channel
130 100 80 dBFS 3.5mA LVDS 120 70 110 3.5mA LVDS OUTPUTS 60 100 90 50 90 (mA) (mA) 1.75mA LVDS 40 80 I VDD CMOS OUTPUTS dBc I OVDD 30 70 80 SFDR (dBc AND dBFS) 20 60 50 10 1.8V CMOS 40 70 0 –80 –70 –60 –50 –40 –30 –20 –10 0 0 5 10 15 20 0 5 10 15 20 INPUT LEVEL (dBFS) SAMPLE RATE (Msps) SAMPLE RATE (Msps) 2270 G13 2270 G14 2270 G15
SFDR vs Analog Input Common SNR vs SENSE, Mode, fIN = 9.7MHz, 20Msps, SNR, SFDR vs Sample Rate, fIN = 5MHz, –1dBFS 2.1V Range fIN = 5MHz, –1dBFS
85 100 110 V 84 DD 1.9V 83 95 VDD 1.7V SFDR 100 82 81 90 SNR (dBFS) 80 SFDR (dBFS) 90 SNR, SFDR (dBFS) 79 85 SNR 78 77 80 80 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 0.6 0.7 0.8 0.9 1 1.1 1.2 0 5 10 15 20 SENSE PIN (V) INPUT COMMON MODE (V) SAMPLE RATE (Msps) 2270 G16 2270 G17 2270 G18 2270f 10
TYPICAL PERFORMANCE CHARACTERISTICS 2nd, 3rd Harmonic vs Input 2nd, 3rd Harmonic vs Input SNR vs Input Frequency, –1dBFS, Frequency, –1dBFS, 20Msps, Frequency, –1dBFS, 20Msps, 20Msps, 2.1V Range 2.1V Range 1.05V Range
85 105 105 100 100 3RD 84 95 95 SINGLE-ENDED 83 ENCODE 3RD 90 90 2ND 82 85 85 SNR (dBFS) DIFFERENTIAL 2ND 81 ENCODE 80 80 80 2ND AND 3RD HARMONIC (dBFS) 2ND AND 3RD HARMONIC (dBFS) 75 75 79 70 70 0 20 40 60 80 100 120 140 0 20 40 60 80 100 120 140 0 20 40 60 80 100 120 140 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) 2270 G10 2270 G11 2270 G12
IVDD vs Sample Rate, 5MHz, IOVDD vs Sample Rate, 5MHz, SFDR vs Input Level, fIN = 5MHz, –1dBFS Sine Wave Input on –1dBFS Sine Wave Input on 20Msps, 2.1V Range Each Channel Each Channel
130 100 80 dBFS 3.5mA LVDS 120 70 110 3.5mA LVDS OUTPUTS 60 100 90 50 90 (mA) (mA) 1.75mA LVDS 40 80 I VDD CMOS OUTPUTS dBc I OVDD 30 70 80 SFDR (dBc AND dBFS) 20 60 50 10 1.8V CMOS 40 70 0 –80 –70 –60 –50 –40 –30 –20 –10 0 0 5 10 15 20 0 5 10 15 20 INPUT LEVEL (dBFS) SAMPLE RATE (Msps) SAMPLE RATE (Msps) 2270 G13 2270 G14 2270 G15
SFDR vs Analog Input Common SNR vs SENSE, Mode, fIN = 9.7MHz, 20Msps, SNR, SFDR vs Sample Rate, fIN = 5MHz, –1dBFS 2.1V Range fIN = 5MHz, –1dBFS
85 100 110 V 84 DD 1.9V 83 95 VDD 1.7V SFDR 100 82 81 90 SNR (dBFS) 80 SFDR (dBFS) 90 SNR, SFDR (dBFS) 79 85 SNR 78 77 80 80 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 0.6 0.7 0.8 0.9 1 1.1 1.2 0 5 10 15 20 SENSE PIN (V) INPUT COMMON MODE (V) SAMPLE RATE (Msps) 2270 G16 2270 G17 2270 G18 2270f 10