Datasheet LTC2946 (Analog Devices) - 7

LTC2946
TYPICAL PERFORMANCE CHARACTERISTICS ADC Total Unadjusted Error ADC Integral Nonlinearity ADC Differential Nonlinearity (ΔSENSE) (ΔSENSE) (ΔSENSE)
0.2 0.3 0.3 0.2 0.2 0.1 0.1 0.1 0 0 0 ADC TUE (%) ADC INL (LSB) ADC DNL (LSB) –0.1 –0.1 –0.1 –0.2 –0.2 –0.2 –0.3 –0.3 0 1024 2048 3072 4096 0 1024 2048 3072 4096 0 1024 2048 3072 4096 CODE CODE CODE 2946 G14 2946 G15 2946 G13
Internal Clock Frequency Current Sense Amplifier Offset Current Sense Amplifier Offset Over Temperature Drift Over Temperature Drift Over Input Common Mode
254.5 8 8 INITIAL CALIBRATION DONE AT VCM = 48V NO CALIBRATION THEREAFTER 254.4 6 6 CALIBRATION OFF 254.3 T (LSB) 4 T (LSB) 4 CALIBRATION OFF 254.2 2 2 OFFSET DRIF CALIBRATION OFFSET DRIF CALIBRATION ON ON 254.1 0 0 INTERNAL CLOCK FREQUENCY (kHz) 254.0 –2 –2 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0 25 50 75 100 TEMPERATURE (°C) TEMPERATURE (°C) COMMON MODE VOLTAGE (V) 2946 G16 2946 G17 2946 G18
VDD Supply Current ADC Conversion Time over over CLKIN Frequency Internal Clock Frequency
1050 100 SNAPSHOT MEASUREMENT OF ADIN 1000 80 950 60 SUPPLY CURRENT (µA) 900 CONVERSION TIME (ms) 40 850 20 0 5 10 15 20 25 100 150 200 250 300 350 400 fCLKIN (MHz) INTERNAL CLOCK FREQUENCY (kHz) 2946 G19 2946 G20 2946fa For more information www.linear.com/LTC2946 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts