Datasheet LTC2325-16 (Analog Devices) - 9

LTC2325-16
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2,3,4 = 4.096V, fSMPL = 5Msps, unless otherwise noted. Step Response CMRR vs Input Frequency Crosstalk vs Input Frequency (Large Signal Settling)
120 –105 32768 VCM = 4VP-P –107 112 –109 24576 –111 104 –113 16384 ALK (dB) –115 4.096V RANGE CMRR (dB) 96 –117 8192 CROSST –119 OUTPUT CODE (LSB) 88 –121 0 –123 IN+ = 5MHz SQUARE WAVE IN– = 0V 80 –125 –8192 0 500 1000 1500 2000 2500 0 0.5 1 1.5 2 2.5 –20 –10 0 10 20 30 40 50 60 70 80 90 FREQUENCY (kHz) FREQUENCY (MHz) SETTLING TIME (ns) 232516 G10 232516 G11 232516 G12
Step Response External Reference Supply (Fine Settling) Current vs Sample Frequency REF Output vs Temperature
250 700 1.00 REFBUFEN = 0V 200 (EXT REF BUF 600 0.50 150 OVERDRIVING REF BUF) VDD = 3.3V 0 100 500 ALUE (LSB) 50 –0.50 400 0 VREFOUT1,2,3,4 = 4.096V –1.00 –50 300 Y CURRENT (uA) VDD = 5V –1.50 –100 200 TION FROM FINAL V SUPPL 4.096V RANGE –2.00 –150 REF OUTPUT ERROR (mV) IN+ = 5MHz VREFOUT1,2,3,4 = 2.048V DEVIA 100 –200 SQUARE WAVE –2.50 IN– = 0V –250 0 –3.00 –20 –10 0 10 20 30 40 50 60 70 80 90 0 1 2 3 4 5 –55 –35 –15 5 25 45 65 85 105 125 SETTLING TIME (ns) SAMPLE FREQUENCY (Msps) TEMPERATURE (°C) 232516 G13 232516 G14 232516 G15
Supply Current OVDD Current vs SCK Frequency, Offset Error vs Temperature vs Sample Frequency CLOAD = 10pF
3 40 8 32 FULL SCALE SINUSOIDAL INPUT 7 30 2 LVDS 35 28 OV 6 DD 26 1 V CURRENT L DD = 5V 30 5 24 CMOS(2.5V) 0 LSB 4 22 VDD = 3.3V CMOS(1.8V) VDS (mA) Y CURRENT (mA) 25 3 20 –1 CURRENT CMOS (mA) 18 SUPPL DD 2 OV 16 –2 20 1 LOW POWER LVDS 14 –3 15 0 12 –55 –35 –15 5 25 45 65 85 105 125 0 1 2 3 4 5 0 22 44 66 88 110 TEMPERATURE (°C) SAMPLE FREQUENCY (Msps) SCK FREQUENCY (MHz) 232516 G16 232516 G17 232516 G18 232516fa For more information www.linear.com/LTC2325-16 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter 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