Datasheet LTC2321-16 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | Dual, 16-Bit, 2Msps Differential Input ADC with Wide Input Common Mode Range |
| Seiten / Seite | 26 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 5V, OVDD = 2.5V, … |
| Revision | D |
| Dateiformat / Größe | PDF / 3.3 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2 =
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LTC2321-16
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2 = 4.096V, fSMPL = 2Msps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity vs Output Code vs Output Code DC Histogram
8 1.0 20000 6 18000 16000 4 0.5 14000 2 12000 0 0 10000 COUNTS –2 8000 INL ERROR (LSB) DNL ERROR (LSB) 6000 –4 –0.5 4000 –6 2000 –8 –1.0 0 –32768 –16384 0 16384 32768 –32768 –16384 0 16384 32768 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 –24576 –8192 8192 24576 –24576 –8192 8192 24576 CODE OUTPUT CODE 232116 G01 OUTPUT CODE 232116 G02 232116 G03
32k Point FFT, fS = 2Msps, THD, Harmonics fIN = 500kHz SNR, SINAD vs Input Frequency vs Input Frequency
0 83.0 –85 SNR = 81.0dB THD = –94.6dB –20 SINAD = 80.8dB 82.5 –90 SFDR = 100.9dB ) –40 SNR 82.0 dBFS THD –60 –95 SINAD 81.5 –80 –100 AMPLITUDE (dBFS) 81.0 H2 –100 SNR, SINAD (dBFS) THD, HARMONICS ( –105 –120 80.5 H3 –140 80.0 –110 0 0.2 0.4 0.6 0.8 1 0 0.5 1 1.5 2 2.5 0 0.5 1 1.5 2 2.5 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 232116 G04 232116 G06 232116 G05
THD, Harmonics vs Input SNR, SINAD vs Reference Voltage, 32k Point FFT, IMD, fS = 2Msps, Common Mode (1.2MHz) f + – IN = 500kHz VIN = 100kHz, VIN = 500kHz
–75 0 82 F1 = 100kHz ) –80 F2 = 500kHz –20 80 IMD = 97dBc dBFS SNR –85 ) 78 –40 dBFS –90 SINAD –60 THD 76 –95 74 –80 H2 –100 SNR, SINAD ( 72 AMPLITUDE (dBFS) –100 THD, HARMONICS LEVEL ( –105 H3 70 –120 –110 68 –140 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 0.2 0.4 0.6 0.8 1 INPUT COMMON MODE (V) V FREQUENCY (MHz) 232116 G07 REF (V) 232116 G08 232116 G09 Rev. D 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration 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 Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2 = 4.096V, fSMPL = 2Msps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity vs Output Code vs Output Code DC Histogram
8 1.0 20000 6 18000 16000 4 0.5 14000 2 12000 0 0 10000 COUNTS –2 8000 INL ERROR (LSB) DNL ERROR (LSB) 6000 –4 –0.5 4000 –6 2000 –8 –1.0 0 –32768 –16384 0 16384 32768 –32768 –16384 0 16384 32768 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 –24576 –8192 8192 24576 –24576 –8192 8192 24576 CODE OUTPUT CODE 232116 G01 OUTPUT CODE 232116 G02 232116 G03
32k Point FFT, fS = 2Msps, THD, Harmonics fIN = 500kHz SNR, SINAD vs Input Frequency vs Input Frequency
0 83.0 –85 SNR = 81.0dB THD = –94.6dB –20 SINAD = 80.8dB 82.5 –90 SFDR = 100.9dB ) –40 SNR 82.0 dBFS THD –60 –95 SINAD 81.5 –80 –100 AMPLITUDE (dBFS) 81.0 H2 –100 SNR, SINAD (dBFS) THD, HARMONICS ( –105 –120 80.5 H3 –140 80.0 –110 0 0.2 0.4 0.6 0.8 1 0 0.5 1 1.5 2 2.5 0 0.5 1 1.5 2 2.5 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 232116 G04 232116 G06 232116 G05
THD, Harmonics vs Input SNR, SINAD vs Reference Voltage, 32k Point FFT, IMD, fS = 2Msps, Common Mode (1.2MHz) f + – IN = 500kHz VIN = 100kHz, VIN = 500kHz
–75 0 82 F1 = 100kHz ) –80 F2 = 500kHz –20 80 IMD = 97dBc dBFS SNR –85 ) 78 –40 dBFS –90 SINAD –60 THD 76 –95 74 –80 H2 –100 SNR, SINAD ( 72 AMPLITUDE (dBFS) –100 THD, HARMONICS LEVEL ( –105 H3 70 –120 –110 68 –140 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 0.2 0.4 0.6 0.8 1 INPUT COMMON MODE (V) V FREQUENCY (MHz) 232116 G07 REF (V) 232116 G08 232116 G09 Rev. D 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration 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 Revision History Typical Application Related Parts