Datasheet LTC2321-16 (Analog Devices) - 7

LTC2321-16
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2 = 4.096V, fSMPL = 2Msps, unless otherwise noted. Output Match with Simultaneous Crosstalk vs Input Frequency CMRR vs Input Frequency Input Steps at CH1, CH2
–126 –80 35000 CH1 –83 30000 –128 CH2 –86 25000 –89 –130 20000 –92 15000 –132 CMRR (dB) –95 10000 CROSSTALK (dBc) –98 OUTPUT CODE (CH1, CH2) 5000 –134 –101 0 –136 –104 –5000 0 0.5 1 1.5 2 2.5 0 0.5 1 1.5 2 2.5 0 100 200 300 400 500 FREQUENCY (MHz) FREQUENCY (MHz) TIME (ns) 232116 G10 232116 G11 232116 G12
Offset Error vs Temperature Gain Error vs Temperature REFOUT1,2 Output vs Temperature
2.00 1.5 200 1.50 CH2 1.0 100 1.00 0 0.50 0.5 ) 4.096V 0 –100 LSB 0 –0.50 CH1 –200 –1.00 –0.5 REFOUT (ppm 2.048V –300 –1.50 GAIN ERROR (16-BIT LSB) –1.0 –2.00 –400 –2.50 –1.5 –500 –50 –25 0 25 50 75 100 125 150 –40 –25 0 25 50 75 100 125 –50 0 50 100 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 232116 G13 232116 G14 232116 G15
Reference Current vs Temperature, Supply Current OVDD Current vs SCK Frequency, VREF = 4.096V vs Sample Rate CLOAD = 10pF
0.350 12.0 8 11.5 11.0 6 0.345 10.5 10.0 4 9.5 CURRENT (mA) 0.340 DD SUPPLY CURRENT (mA) OV 9.0 2 REFERENCE CURRENT (mA) 8.5 0.335 8.0 0 –40 –20 0 20 40 60 80 100 120 0 0.5 1 1.5 2 0 10 20 30 40 50 60 70 80 90 100 110 TEMPERATURE (°C) SAMPLE RATE (Msps) SCK FREQUENCY (MHz) 232116 G16 232116 G17 232116 G18 Rev. D For more information www.analog.com 7 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