Datasheet LTC2368-24 (Analog Devices) - 7

LTC2368-24
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 2.5V, OVDD = 2.5V, REF = 5V, fSMPL = 1Msps, N = 1, unless otherwise noted. 8k Point FFT fSMPL = 1Msps, 32k Point FFT fSMPL = 1Msps, 32k Point FFT fSMPL = 1Msps, IN+ = Near GND, IN– = GND, fIN = 50Hz, N = 1024 fIN = 10Hz, N = 16384 N = 65536
0 0 0 SNR = 124dB SNR = 133dB DR = 140dB –20 –20 –20 –40 –40 –40 –60 –60 –60 –80 –80 –80 –100 –100 –100 –120 –120 –120 AMPLITUDE (dBFS) –140 AMPLITUDE (dBFS) –140 AMPLITUDE (dBFS) –140 –160 –160 –160 –180 –180 –180 –200 –200 –200 0 122 244 366 488 0 10 20 30 0 1.5 3 4.5 6 7.5 FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 236824 G10 236824 G11 236824 G12
Dynamic Range, Transition Noise THD, Harmonics vs Input vs Number of Averages (N) SNR, SINAD vs Input Frequency Frequency
150 100 100 –90 TRANSITION NOISE 99 140 TRANSITION NOISE (LSB) SNR –100 98 THD 130 10 97 2ND –110 SINAD 120 96 3RD 95 –120 110 1 DYNAMIC RANGE (dB) SNR, SINAD (dBFS) 94 THD, HARMONICS (dBFS) –130 100 DYNAMIC RANGE 93 90 0.1 92 –140 1 10 100 1k 10k 70k 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 NUMBER OF AVERAGES (N) FREQUENCY (kHz) FREQUENCY (kHz) 236824 G13 236824 G14 236824 G15
SNR, SINAD vs Input level, SNR, SINAD vs Reference THD, Harmonics vs Reference fIN = 2kHz Voltage, fIN = 2kHz Voltage, fIN = 2kHz
99.0 99 –110 98 SNR THD –115 98.5 97 2ND SINAD SNR 96 –120 98.0 SINAD 94 –125 3RD SNR, SINAD (dBFS) SNR, SINAD (dBFS) 93 97.5 THD, HARMONICS (dBFS) –130 92 97.0 91 –135 –40 –30 –20 –10 0 2.5 3 3.5 4 4.5 5 2.5 3 3.5 4 4.5 5 INPUT LEVEL (dB) REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) 236824 G16 236824 G17 236824 G18 236824f For more information www.linear.com/LTC2368-24 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Package Description Typical Application Related Parts