Datasheet LTC2344-16 (Analog Devices) - 10
| 制造商 | Analog Devices |
| 描述 | Quad, 16-Bit, 400ksps/ch Differential SoftSpan ADC with Wide Input Common Mode Range |
| 页数 / 页 | 40 / 10 — TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 5V, OVDD = 2.5V, … |
| 修订版 | A |
| 文件格式/大小 | PDF / 1.5 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 5V, OVDD = 2.5V, Internal
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LTC2344-16
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, OVDD = 2.5V, Internal Reference and Buffer (VREFBUF = 4.096V), fSMPL = 400ksps, unless otherwise noted. 32k Point Arbitrary Two-Tone FFT fSMPL = 400kHz, IN+ = –7dBFS 2kHz 32k Point FFT fSMPL = 400kHz, SNR, SINAD vs VREFBUF, Sine, IN– = –7dBFS 3.1kHz Sine fIN = 2kHz fIN = 2kHz
0 0 98 ±4.096V RANGE 0V TO 4.096V RANGE ±VREFBUF RANGE –20 ARBITRARY DRIVE –20 UNIPOLAR DRIVE (IN– = 0V) FULLY DIFFERENTIAL DRIVE (IN– = –IN+) SFDR = 118dB –40 –40 SNR = 88.7dB 96 SNR = 93.5dB THD = –110dB –60 –60 SINAD = 88.7dB SNR SFDR = 111dB 94 –80 –80 SINAD –100 –100 92 –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) SNR, SINAD (dBFS) –140 –140 90 –160 –160 –180 –180 88 0 40 80 120 160 200 0 40 80 120 160 200 2.5 3 3.5 4 4.5 5 FREQUENCY (kHz) FREQUENCY (kHz) REFBUF VOLTAGE (V) 234416 G10 234516 G11 234416 G12
THD, Harmonics vs VREFBUF, SNR, SINAD THD, Harmonics fIN = 2kHz vs Input Frequency vs Input Frequency
–100 104 –70 ±VREFBUF RANGE ±4.096V RANGE ±4.096V RANGE –105 FULLY DIFFERENIAL DRIVE (IN– = –IN+) FULLY DIFFERENTIAL DRIVE (IN– = –IN+) FULLY DIFFERENTIAL DRIVE (IN– = –IN+) 100 –80 –110 THD 96 –90 –115 SNR 2ND –120 92 –100 SINAD –125 3RD 88 –110 THD SNR, SINAD (dBFS) THD, HARMONICS (dBFS) –130 THD, HARMONICS (dBFS) 2ND 84 –120 –135 3RD –140 80 –130 2.5 3 3.5 4 4.5 5 100 1k 10k 100k 100 1k 10k 100k REFBUF VOLTAGE (V) FREQUENCY (Hz) FREQUENCY (Hz) 234416 G13 234416 G14 234416 G15
THD, Harmonics vs Input SNR, SINAD vs Input Level, CMRR vs Input Frequency and Common Mode, fIN = 2kHz fIN = 2kHz Channel
–100 94.0 130 ±4.096V RANGE ±4.096V RANGE ±4.096V RANGE 1VP-P FULLY DIFFERENTIAL DRIVE FULLY DIFFERENTIAL DRIVE (IN– = –IN+) IN+ = IN– = 3.6VP-P SINE 120 –110 93.8 ALL CHANNELS 110 SNR –120 93.6 THD SINAD 100 –130 3RD 93.4 90 CMRR (dB) SNR, SINAD (dBFS) 80 THD, HARMONICS (dBFS) –140 2ND 93.2 70 –150 93.0 60 0 1 2 3 4 5 –40 –30 –20 –10 0 10 100 1k 10k 100k 1M INPUT COMMON MODE (V) INPUT LEVEL (dBFS) FREQUENCY (Hz) 234416 G16 234416 G17 234416 G18 Rev A 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Configuration Tables Functional Block Diagrams Timing Diagram Applications Information Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, OVDD = 2.5V, Internal Reference and Buffer (VREFBUF = 4.096V), fSMPL = 400ksps, unless otherwise noted. 32k Point Arbitrary Two-Tone FFT fSMPL = 400kHz, IN+ = –7dBFS 2kHz 32k Point FFT fSMPL = 400kHz, SNR, SINAD vs VREFBUF, Sine, IN– = –7dBFS 3.1kHz Sine fIN = 2kHz fIN = 2kHz
0 0 98 ±4.096V RANGE 0V TO 4.096V RANGE ±VREFBUF RANGE –20 ARBITRARY DRIVE –20 UNIPOLAR DRIVE (IN– = 0V) FULLY DIFFERENTIAL DRIVE (IN– = –IN+) SFDR = 118dB –40 –40 SNR = 88.7dB 96 SNR = 93.5dB THD = –110dB –60 –60 SINAD = 88.7dB SNR SFDR = 111dB 94 –80 –80 SINAD –100 –100 92 –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) SNR, SINAD (dBFS) –140 –140 90 –160 –160 –180 –180 88 0 40 80 120 160 200 0 40 80 120 160 200 2.5 3 3.5 4 4.5 5 FREQUENCY (kHz) FREQUENCY (kHz) REFBUF VOLTAGE (V) 234416 G10 234516 G11 234416 G12
THD, Harmonics vs VREFBUF, SNR, SINAD THD, Harmonics fIN = 2kHz vs Input Frequency vs Input Frequency
–100 104 –70 ±VREFBUF RANGE ±4.096V RANGE ±4.096V RANGE –105 FULLY DIFFERENIAL DRIVE (IN– = –IN+) FULLY DIFFERENTIAL DRIVE (IN– = –IN+) FULLY DIFFERENTIAL DRIVE (IN– = –IN+) 100 –80 –110 THD 96 –90 –115 SNR 2ND –120 92 –100 SINAD –125 3RD 88 –110 THD SNR, SINAD (dBFS) THD, HARMONICS (dBFS) –130 THD, HARMONICS (dBFS) 2ND 84 –120 –135 3RD –140 80 –130 2.5 3 3.5 4 4.5 5 100 1k 10k 100k 100 1k 10k 100k REFBUF VOLTAGE (V) FREQUENCY (Hz) FREQUENCY (Hz) 234416 G13 234416 G14 234416 G15
THD, Harmonics vs Input SNR, SINAD vs Input Level, CMRR vs Input Frequency and Common Mode, fIN = 2kHz fIN = 2kHz Channel
–100 94.0 130 ±4.096V RANGE ±4.096V RANGE ±4.096V RANGE 1VP-P FULLY DIFFERENTIAL DRIVE FULLY DIFFERENTIAL DRIVE (IN– = –IN+) IN+ = IN– = 3.6VP-P SINE 120 –110 93.8 ALL CHANNELS 110 SNR –120 93.6 THD SINAD 100 –130 3RD 93.4 90 CMRR (dB) SNR, SINAD (dBFS) 80 THD, HARMONICS (dBFS) –140 2ND 93.2 70 –150 93.0 60 0 1 2 3 4 5 –40 –30 –20 –10 0 10 100 1k 10k 100k 1M INPUT COMMON MODE (V) INPUT LEVEL (dBFS) FREQUENCY (Hz) 234416 G16 234416 G17 234416 G18 Rev A 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Configuration Tables Functional Block Diagrams Timing Diagram Applications Information Package Description Revision History Typical Application Related Parts