Datasheet LTC2325-14 (Analog Devices) - 9

LTC2325-14
Typical perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2,3,4 = 4.096V, fSMPL = 5Msps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity vs Output Code vs Output Code DC Histogram
2 1.0 40000 σ = 0.38 36000 32000 1 0.5 28000 24000 0 0 20000 COUNTS 16000 INL ERROR (LSB) DNL ERROR (LSB) 12000 –1 –0.5 8000 4000 –2 –1.0 0 –16384 –8192 0 8192 16384 –16384 –8192 0 8192 16384 –3 –2 –1 0 1 2 3 OUTPUT CODE OUTPUT CODE CODE 232514 G01 232514 G02 232414 G03
32k Point FFT, fSMPL = 5Msps, SNR, SINAD vs Input Frequency THD, Harmonics vs Input fIN = 2.2MHz (1kHz to 2.2MHz) Frequency (1kHz to 2.2MHz)
0 82.0 –80 SNR = 81.3dB THD = –87.2dB 81.8 –84 –20 SINAD = 80.5dB THD SFDR = 90.3dB 81.6 –88 –40 81.4 –92 –60 81.2 SNR –96 HD3 81.0 –100 –80 80.8 –104 HD2 AMPLITUDE (dBFS) SINAD –100 80.6 –108 SNR, SINAD LEVEL (dBFS) 80.4 –112 –120 THD, HARMONICS LEVEL (dBFS) 80.2 –116 –140 80.0 –120 0 0.5 1 1.5 2 2.5 0 0.5 1 1.5 2 2.5 0 0.5 1 1.5 2 2.5 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 232514 G04 232514 G05 232514 G06
THD, Harmonics vs Input Common SNR, SINAD vs Reference Voltage, 32k Point FFT, IMD, fSMPL = 5Msps, Mode f + – IN = 2.2MHz AIN = 1.2MHz, AIN = 2.2MHz
–80 84 0 f = 2.2MHz f = 2.2MHz THD = 86dB –83 83 V 82 SNR CM = 1MHz, 4VP-P –20 –86 THD 81 –89 SINAD 80 –40 79 –92 HD3 78 –60 –95 77 –98 76 –80 HD2 75 –101 74 AMPLITUDE (dBFS) –100 –104 SNR, SINAD LEVEL (dBFS) 73 THD, HARMONICS LEVEL (dBFS) 72 –120 –107 71 –110 70 –140 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 0.5 1 1.5 2 2.5 INPUT COMMON MODE (V) VREFOUT(V) FREQUENCY (MHz) 232514 G07 232514 G08 232514 G09 232514f For more information www.linear.com/LTC2325-14 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics 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