Datasheet LTC2321-12 (Analog Devices) - 8

LTC2321-12
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2 = 4.096V, fSMPL = 2Msps, unless otherwise noted (Note 16). Output Match with Simultaneous Crosstalk vs Input Frequency CMRR vs Input Frequency Input Steps at CH1, CH2
–124 –80 5000 –83 4000 CH1 –86 CH2 –126 3000 –89 –92 2000 CMRR (dB) –95 CROSSTALK (dB) –128 1000 –98 OUTPUT CODE (CH1, CH2) 0 –101 –130 –104 –1000 0 0.2 0.4 0.6 0.8 1.0 0 0.5 1 1.5 2 2.5 0 100 200 300 400 500 INPUT FREQUENCY (MHz) FREQUENCY (MHz) TIME (ns) 232112 G10 232112 G11 232112 G12
Offset Error vs Temperature Gain Error vs Temperature REFOUT1,2 Output vs Temperature
0.50 0.15 200 0.40 100 0.30 0.10 0.20 0 0.10 0.05 4.096V CH1 –100 LSB 0 CH2 –0.10 0 –200 –0.20 GAIN ERROR (LSB) 2.048V –300 –0.30 –0.05 –400 –0.40 REFOUT (ppm, NORMALIZED TO 20°C) –0.50 –0.10 –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) 232112 G13 232112 G14 232112 G15
Reference Current vs Temperature, Supply Current OVDD Current vs SCK Frequency, VREF = 4.096V vs Sample Frequency CLOAD = 10pF
0.350 12.0 8 11.5 11.0 6 0.345 10.5 10.0 4 CURRENT (mA) 9.5 0.340 DDOV REFERENCE CURRENT (mA) SUPPLY CURRENT (mA) 9.0 2 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) 232112 G16 232112 G17 232112 G18 232112fb 8 For more information www.linear.com/LTC2321-12 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics 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 Related Parts