Datasheet LTC2372-16 (Analog Devices) - 10

LTC2372-16
Typical perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, REFIN = 2.048V, Pseudo-Differential Unipolar Range, fSMPL = 500ksps, unless otherwise noted. Integral Nonlinearity vs Output Differential Nonlinearity vs Code Output Code DC Histogram (Zero-Scale)
1.0 0.5 250000 σ = 0.46 0.8 0.4 0.6 0.3 200000 0.4 0.2 0.2 0.1 150000 –0.0 –0.0 –0.2 –0.1 COUNTS 100000 INL ERROR (LSB) –0.4 DNL ERROR (LSB) –0.2 –0.6 –0.3 50000 –0.8 –0.4 –1.0 –0.5 0 0 16384 32768 49152 65536 0 16384 32768 49152 65536 6 7 8 9 10 OUTPUT CODE OUTPUT CODE CODE 237216 G19 231716 G20 231716 G21
32k Point FFT fSMPL = 500ksps, 32k Point FFT fSMPL = 500ksps, DC Histogram (Near Full-Scale) fIN = 1kHz fIN = 1kHz, REFBUF = 5V
200000 0 0 σ = 0.51 SNR = 93.6dB SNR = 94.5dB –20 THD = –109dB –20 THD = –110.8dB SINAD = 93.5dB SINAD = 94.4dB 150000 –40 SFDR = 111.5dB –40 SFDR = 112.1dB –60 –60 –80 –80 100000 COUNTS –100 –100 –120 AMPLITUDE (dBFS) –120 AMPLITUDE (dBFS) 50000 –140 –140 –160 –160 0 –180 –180 65512 65513 65514 65515 65516 0 50 100 150 200 250 0 50 100 150 200 250 CODE FREQUENCY (kHz) FREQUENCY (kHz) 237216 G22 237216 G23 237216 G24
THD, Harmonics vs REFBUF, SNR, SINAD vs Input Level, SNR, SINAD vs REFBUF, fIN = 1kHz fIN = 1kHz fIN = 1kHz
95.0 –105.0 95.0 SNR THD 94.0 –110.0 94.0 SNR SINAD 2ND SINAD 93.0 –115.0 93.0 92.0 –120.0 92.0 3RD SNR, SINAD (dBFS) SNR, SINAD (dBFS) THD, HARMONICS (dBFS) 91.0 –125.0 91.0 90.0 –130.0 90.0 2.5 3 3.5 4 4.5 5 2.5 3 3.5 4 4.5 5 –40 –30 –20 –10 0 REFBUF VOLTAGE (V) REFBUF VOLTAGE (V) INPUT LEVEL (dB) 237216 G25 237216 G26 237216 G27 237216f 10 For more information www.linear.com/LTC2372-16 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 Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Timing Diagrams Board Layout Schematics Package Description Typical Application Related Parts