Datasheet LTC2379-18 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | 18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR |
| Pages / Page | 26 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 2.5V, OVDD = 2.5V, … |
| File Format / Size | PDF / 570 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V,
Model Line for this Datasheet
- LTC2379CDE-18#PBF LTC2379CDE-18#PBF LTC2379CDE-18#TRPBF LTC2379CDE-18#TRPBF LTC2379CMS-18#PBF LTC2379CMS-18#PBF LTC2379CMS-18#TRPBF LTC2379CMS-18#TRPBF LTC2379HMS-18#PBF LTC2379HMS-18#PBF LTC2379HMS-18#TRPBF LTC2379HMS-18#TRPBF LTC2379IDE-18#PBF LTC2379IDE-18#PBF LTC2379IDE-18#TRPBF LTC2379IDE-18#TRPBF LTC2379IMS-18#PBF LTC2379IMS-18#PBF LTC2379IMS-18#TRPBF LTC2379IMS-18#TRPBF
Text Version of Document
LTC2379-18
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, REF = 5V, fSMPL = 1.6Msps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity vs Output Code vs Output Code DC Histogram
2.0 1.0 70000 σ = 0.8 1.5 0.8 60000 0.6 1.0 0.4 50000 0.5 0.2 40000 0.0 0.0 COUNTS 30000 –0.5 –0.2 INL ERROR (LSB) DNL ERROR (LSB) –0.4 20000 –1.0 –0.6 –1.5 10000 –0.8 –2.0 –1.0 0 –131072 –65536 0 65536 131072 –131072 –65536 0 65536 131072 –2 –1 0 1 2 3 OUTPUT CODE OUTPUT CODE CODE 237918 G01 237918 G02 237918 G03
32k Point FFT fS = 1.6Msps, THD, Harmonics fIN = 2kHz SNR, SINAD vs Input Frequency vs Input Frequency
0 105 –80 SNR = 101.2dB –20 THD = –120dB SINAD = 101.1dB –90 –40 100 SFDR = 121dB SNR –60 –100 95 THD –80 SINAD –110 –100 90 2ND AMPLITUDE (dBFS) –120 SNR, SINAD (dBFS) –120 –140 HARMONICS, THD (dBFS) 85 –130 –160 3RD –180 80 –140 0 100 200 300 400 500 600 700 800 0 25 50 75 100 125 150 175 200 0 25 50 75 100 125 150 175 200 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 237918 G04 237918 G05 237918 G06
SNR, SINAD vs Input level, SNR, SINAD vs Reference THD, Harmonics vs Reference fIN = 2kHz Voltage, fIN = 2kHz Voltage, fIN = 2kHz
102.0 102 –100 101 –105 101.5 –110 100 SNR SNR THD –115 SINAD 99 3RD 101.0 SINAD –120 98 2ND –125 SNR, SINAD (dBFS) SNR, SINAD (dBFS) 97 100.5 HARMONICS, THD (dBFS) –130 96 –135 100.0 95 –140 –40 –30 –20 –10 0 2.5 3.0 3.5 4.0 4.5 5.0 2.5 3.0 3.5 4.0 4.5 5.0 INPUT LEVEL (dB) REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) 237918 G07 237918 G16 237918 G17 237918fb 6 For more information www.linear.com/LTC2379-18 Document Outline Features Applications Typical Application Description 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 Board Layout Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, REF = 5V, fSMPL = 1.6Msps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity vs Output Code vs Output Code DC Histogram
2.0 1.0 70000 σ = 0.8 1.5 0.8 60000 0.6 1.0 0.4 50000 0.5 0.2 40000 0.0 0.0 COUNTS 30000 –0.5 –0.2 INL ERROR (LSB) DNL ERROR (LSB) –0.4 20000 –1.0 –0.6 –1.5 10000 –0.8 –2.0 –1.0 0 –131072 –65536 0 65536 131072 –131072 –65536 0 65536 131072 –2 –1 0 1 2 3 OUTPUT CODE OUTPUT CODE CODE 237918 G01 237918 G02 237918 G03
32k Point FFT fS = 1.6Msps, THD, Harmonics fIN = 2kHz SNR, SINAD vs Input Frequency vs Input Frequency
0 105 –80 SNR = 101.2dB –20 THD = –120dB SINAD = 101.1dB –90 –40 100 SFDR = 121dB SNR –60 –100 95 THD –80 SINAD –110 –100 90 2ND AMPLITUDE (dBFS) –120 SNR, SINAD (dBFS) –120 –140 HARMONICS, THD (dBFS) 85 –130 –160 3RD –180 80 –140 0 100 200 300 400 500 600 700 800 0 25 50 75 100 125 150 175 200 0 25 50 75 100 125 150 175 200 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 237918 G04 237918 G05 237918 G06
SNR, SINAD vs Input level, SNR, SINAD vs Reference THD, Harmonics vs Reference fIN = 2kHz Voltage, fIN = 2kHz Voltage, fIN = 2kHz
102.0 102 –100 101 –105 101.5 –110 100 SNR SNR THD –115 SINAD 99 3RD 101.0 SINAD –120 98 2ND –125 SNR, SINAD (dBFS) SNR, SINAD (dBFS) 97 100.5 HARMONICS, THD (dBFS) –130 96 –135 100.0 95 –140 –40 –30 –20 –10 0 2.5 3.0 3.5 4.0 4.5 5.0 2.5 3.0 3.5 4.0 4.5 5.0 INPUT LEVEL (dB) REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) 237918 G07 237918 G16 237918 G17 237918fb 6 For more information www.linear.com/LTC2379-18 Document Outline Features Applications Typical Application Description 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 Board Layout Package Description Revision History Typical Application Related Parts
