Datasheet LTC2512-24 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 24-Bit Over-Sampling ADC with Configurable Flat Passband Digital Filter |
| 页数 / 页 | 38 / 8 — TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, |
| 文件格式/大小 | PDF / 709 Kb |
| 文件语言 | 英语 |
TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V,
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LTC2512-24 TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, REF = 5V, fSMPL = 1.6Msps, DF = 4, Filtered Output, unless otherwise noted. 128k Point FFT fSMPL = 1.6Msps, 128k Point FFT fSMPL = 1.6Msps, Dynamic Range, Transition Noise fIN = 2kHz, DF = 16 fIN = 2kHz, DF = 32 vs DF
0 0 125 25 SNR = 114dB SNR = 117dB –20 –20 –40 –40 TRANSITION NOISE (LSB) 120 18.75 –60 –60 –80 –80 115 12.5 –100 –100 –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) DYNAMIC RANGE (dB) –140 –140 110 6.25 –160 –160 –180 –180 105 0 0 12.5 25 37.5 50 0 5 10 15 20 25 4 8 16 32 FREQUENCY (kHz) FREQUENCY (kHz) DOWN SAMPLING FACTOR (DF) 251224 G10 251224 G11 251224 G12
Frequency Response, SNR, SINAD vs Input Level, SNR, SINAD vs Input Frequency DF = 4, 8, 16, 32 fIN = 2kHz
110 10 110 DF = 4 0 DF = 8 –10 DF = 16 109 DF = 32 109 –20 –30 SNR 108 108 –40 SNR –50 SINAD 107 107 MAGNITUDE (dB) –60 SNR, SINAD (dBFS) SNR, SINAD (dBFS) SINAD –70 106 –80 106 –90 105 –100 105 0 25 50 75 100 0 FSMPL/16 FSMPL/8 FSMPL/4 3FSMPL/16 –40 –30 –20 –10 0 INPUT FREQUENCY (kHz) FREQUENCY (Hz) INPUT LEVEL (dB) 251224 G13 251224 G14 251224 G15
SNR, SINAD vs Reference THD, Harmonics vs Reference Reference Current Voltage, fIN = 2kHz Voltage, fIN = 2kHz vs Reference Voltage
108 –115 2.0 107 –120 SNR SINAD 106 THD –125 1.5 2ND 105 –130 104 SNR, SINAD (dBFS) –135 1.0 3RD THD, HARMONICS (dBFS) REFERENCE CURRENT (mA) 103 –140 102 –145 0.5 2.5 3 3.5 4 4.5 5 2.5 3 3.5 4 4.5 5 2.5 3 3.5 4 4.5 5 REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) 251224 G16 251224 G17 251224 G18 251224fa 8 For more information www.linear.com/LTC2512-24
TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, REF = 5V, fSMPL = 1.6Msps, DF = 4, Filtered Output, unless otherwise noted. 128k Point FFT fSMPL = 1.6Msps, 128k Point FFT fSMPL = 1.6Msps, Dynamic Range, Transition Noise fIN = 2kHz, DF = 16 fIN = 2kHz, DF = 32 vs DF
0 0 125 25 SNR = 114dB SNR = 117dB –20 –20 –40 –40 TRANSITION NOISE (LSB) 120 18.75 –60 –60 –80 –80 115 12.5 –100 –100 –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) DYNAMIC RANGE (dB) –140 –140 110 6.25 –160 –160 –180 –180 105 0 0 12.5 25 37.5 50 0 5 10 15 20 25 4 8 16 32 FREQUENCY (kHz) FREQUENCY (kHz) DOWN SAMPLING FACTOR (DF) 251224 G10 251224 G11 251224 G12
Frequency Response, SNR, SINAD vs Input Level, SNR, SINAD vs Input Frequency DF = 4, 8, 16, 32 fIN = 2kHz
110 10 110 DF = 4 0 DF = 8 –10 DF = 16 109 DF = 32 109 –20 –30 SNR 108 108 –40 SNR –50 SINAD 107 107 MAGNITUDE (dB) –60 SNR, SINAD (dBFS) SNR, SINAD (dBFS) SINAD –70 106 –80 106 –90 105 –100 105 0 25 50 75 100 0 FSMPL/16 FSMPL/8 FSMPL/4 3FSMPL/16 –40 –30 –20 –10 0 INPUT FREQUENCY (kHz) FREQUENCY (Hz) INPUT LEVEL (dB) 251224 G13 251224 G14 251224 G15
SNR, SINAD vs Reference THD, Harmonics vs Reference Reference Current Voltage, fIN = 2kHz Voltage, fIN = 2kHz vs Reference Voltage
108 –115 2.0 107 –120 SNR SINAD 106 THD –125 1.5 2ND 105 –130 104 SNR, SINAD (dBFS) –135 1.0 3RD THD, HARMONICS (dBFS) REFERENCE CURRENT (mA) 103 –140 102 –145 0.5 2.5 3 3.5 4 4.5 5 2.5 3 3.5 4 4.5 5 2.5 3 3.5 4 4.5 5 REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) 251224 G16 251224 G17 251224 G18 251224fa 8 For more information www.linear.com/LTC2512-24