Datasheet LTC2320-12 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Octal, 12-Bit + Sign, 1.5Msps/Ch Simultaneous Sampling ADC |
| Pages / Page | 32 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 5V, OVDD = 2.5V, … |
| Revision | B |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2,3,4
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Text Version of Document
LTC2320-12
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2,3,4 = 4.096V, fSMPL = 1.5Msps, unless otherwise noted. Step Response CMRR vs Input Frequency Crosstalk vs Input Frequency (Large Signal Settling)
120 –90 4096 VCM = 4VP-P –91 115 –92 3072 –93 110 –94 2048 105 ALK (dB) 4.096V RANGE –95 CMRR (dB) –96 1024 100 CROSST –97 OUTPUT CODE (LSB) –98 0 95 IN+ = 1.5MHz SQUARE WAVE –99 IN– = 0V 90 –100 –1024 0 500 1000 1500 0 100 200 300 400 500 600 700 –20 –10 0 10 20 30 40 50 60 70 80 90 FREQUENCY (kHz) FREQUENCY (kHz) SETTLING TIME (ns) 232012 G10 232012 G11 232012 G12
Step Response External Reference Supply (Fine Settling) Current vs Sample Frequency REF Output vs Temperature
100 400 1.00 REFBUFEN = 0V 80 350 (EXT REF BUF 0.50 60 OVERDRIVING REF BUF) VDD = 3.3V 300 0 40 ALUE (LSB) 20 250 –0.50 VREFOUT1,2,3,4 = 4.096V 0 200 –1.00 –20 Y CURRENT (uA) V 150 DD = 5V –1.50 –40 4.096V RANGE TION FROM FINAL V SUPPL 100 –2.00 –60 IN+ = 1.5MHz REF OUTPUT ERROR (mV) V SQUARE WAVE REFOUT1,2,3,4 = 2.048V DEVIA –80 50 –2.50 IN– = 0V –100 0 –3.00 –20 –10 0 10 20 30 40 50 60 70 80 90 0 0.3 0.6 0.9 1.2 1.5 –55 –35 –15 5 25 45 65 85 105 125 SETTLING TIME (ns) SAMPLE FREQUENCY (Msps) TEMPERATURE (°C) 232012 G13 232012 G14 232012 G15
Supply Current OVDD Current vs SCK Frequency, Offset Error vs Temperature Offset Error vs T vs Sample Frequency C vs Sample Frequency LOAD = 10pF C
0.250
LOAD = 10pF,
33 8 32 FULL SCALE SINUSOIDAL INPUT 31 7 30 LVDS (4 LANES) 0.125 28 OV 29 6 DD 26 V CMOS (2.5V, 8 LANES) CURRENT L DD = 5V 27 5 24 0 LSB 4 22 25 Y CURRENT (mA) CMOS(1.8V, 8 LANES) VDS (mA) VDD = 3.3V 3 20 CURRENT CMOS (mA) –0.125 23 SUPPL 18 DD 2 LOW POWER LVDS (4 LANES) OV 21 16 1 14 –0.250 19 –55 –35 –15 5 25 45 65 85 105 125 0 0.3 0.6 0.9 1.2 1.5 0 12 0 50 100 150 200 250 300 TEMPERATURE (°C) SAMPLE FREQUENCY (Msps) 232012 G16 SCK FREQUENCY (MHz) 232012 G17 232012 G18 Rev B For more information www.analog.com 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics 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 Related Parts 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 ADC Timing Characteristics ADC Timing Characteristics Typical Performance Characteristics Pin Functions CMOS data output option (CMOS/LVDS = low) LVDS data output option (CMOS/LVDS = high or FLOAT) Functional Block Diagram Timing Diagram Applications Information OVERVIEW CONVERTER OPERATION TRANSFER FUNCTION INPUT DRIVE CIRCUITS ADC REFERENCE DYNAMIC PERFORMANCE POWER CONSIDERATIONS TIMING AND CONTROL DIGITAL INTERFACE BOARD LAYOUT Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2,3,4 = 4.096V, fSMPL = 1.5Msps, unless otherwise noted. Step Response CMRR vs Input Frequency Crosstalk vs Input Frequency (Large Signal Settling)
120 –90 4096 VCM = 4VP-P –91 115 –92 3072 –93 110 –94 2048 105 ALK (dB) 4.096V RANGE –95 CMRR (dB) –96 1024 100 CROSST –97 OUTPUT CODE (LSB) –98 0 95 IN+ = 1.5MHz SQUARE WAVE –99 IN– = 0V 90 –100 –1024 0 500 1000 1500 0 100 200 300 400 500 600 700 –20 –10 0 10 20 30 40 50 60 70 80 90 FREQUENCY (kHz) FREQUENCY (kHz) SETTLING TIME (ns) 232012 G10 232012 G11 232012 G12
Step Response External Reference Supply (Fine Settling) Current vs Sample Frequency REF Output vs Temperature
100 400 1.00 REFBUFEN = 0V 80 350 (EXT REF BUF 0.50 60 OVERDRIVING REF BUF) VDD = 3.3V 300 0 40 ALUE (LSB) 20 250 –0.50 VREFOUT1,2,3,4 = 4.096V 0 200 –1.00 –20 Y CURRENT (uA) V 150 DD = 5V –1.50 –40 4.096V RANGE TION FROM FINAL V SUPPL 100 –2.00 –60 IN+ = 1.5MHz REF OUTPUT ERROR (mV) V SQUARE WAVE REFOUT1,2,3,4 = 2.048V DEVIA –80 50 –2.50 IN– = 0V –100 0 –3.00 –20 –10 0 10 20 30 40 50 60 70 80 90 0 0.3 0.6 0.9 1.2 1.5 –55 –35 –15 5 25 45 65 85 105 125 SETTLING TIME (ns) SAMPLE FREQUENCY (Msps) TEMPERATURE (°C) 232012 G13 232012 G14 232012 G15
Supply Current OVDD Current vs SCK Frequency, Offset Error vs Temperature Offset Error vs T vs Sample Frequency C vs Sample Frequency LOAD = 10pF C
0.250
LOAD = 10pF,
33 8 32 FULL SCALE SINUSOIDAL INPUT 31 7 30 LVDS (4 LANES) 0.125 28 OV 29 6 DD 26 V CMOS (2.5V, 8 LANES) CURRENT L DD = 5V 27 5 24 0 LSB 4 22 25 Y CURRENT (mA) CMOS(1.8V, 8 LANES) VDS (mA) VDD = 3.3V 3 20 CURRENT CMOS (mA) –0.125 23 SUPPL 18 DD 2 LOW POWER LVDS (4 LANES) OV 21 16 1 14 –0.250 19 –55 –35 –15 5 25 45 65 85 105 125 0 0.3 0.6 0.9 1.2 1.5 0 12 0 50 100 150 200 250 300 TEMPERATURE (°C) SAMPLE FREQUENCY (Msps) 232012 G16 SCK FREQUENCY (MHz) 232012 G17 232012 G18 Rev B For more information www.analog.com 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics 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 Related Parts 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 ADC Timing Characteristics ADC Timing Characteristics Typical Performance Characteristics Pin Functions CMOS data output option (CMOS/LVDS = low) LVDS data output option (CMOS/LVDS = high or FLOAT) Functional Block Diagram Timing Diagram Applications Information OVERVIEW CONVERTER OPERATION TRANSFER FUNCTION INPUT DRIVE CIRCUITS ADC REFERENCE DYNAMIC PERFORMANCE POWER CONSIDERATIONS TIMING AND CONTROL DIGITAL INTERFACE BOARD LAYOUT Package Description Revision History Typical Application Related Parts
