Datasheet LTC1864, LTC1865 (Analog Devices) - 8

LTC1864/LTC1865
TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs Sampling Frequency Supply Current vs Temperature Sleep Current vs Temperature
1000 1000 1000 VCC = 5V CONV = VCC = 5V TA = 25°C 900 CONV LOW = 800ns 100 800 800 A) A) μ μ 700 10 600 600 500 1 400 400 300 SUPPLY CURRENT ( SUPPLY CURRENT ( SLEEP CURRENT (nA) V 0.1 200 CC = 5V 200 VREF = 5V fSAMPLE = 250kHz 100 CONV HIGH = 3.2μS 0.01 0 0 0.01 0.1 1.0 10 100 1000 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SAMPLING FREQUENCY (kHz) TEMPERATURE (°C) TEMPERATURE (°C) 18645 G01 18645 G02 18645 G03
Reference Current vs Reference Current vs Reference Current vs Sampling Rate Temperature Reference Voltage
60 55 60 VCC = 5V VCC = 5V VCC = 5V T 54 A = 25°C VREF = 5V TA = 25°C 50 VREF = 5V f 50 f 53 S = 250kHz S = 250kHz A) CONV LOW = 800ns A) A) μ μ μ 52 40 40 51 30 50 30 49 20 20 48 REFERENCE CURRENT ( REFERENCE CURRENT ( REFERENCE CURRENT ( 47 10 10 46 0 45 0 0 50 100 150 200 250 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 SAMPLE RATE (kHz) TEMPERATURE (°C) VREF (V) 18645 G04 18645 G05 18645 G06
Analog Input Leakage Current vs Typical INL Curve Typical DNL Curve Temperature
4 2 100 VCC = 5V VCC = 5V VCC = 5V TA = 25°C TA = 25°C VREF = 5V VREF = 5V VREF = 5V CONV = 0V 2 1 75 0 0 50 INL ERROR (LSBs) DNL ERROR (LSBs) –2 –1 25 ANALOG INPUT LEAKAGE (nA) –4 –2 0 0 16384 32768 49152 65536 0 16384 32768 49152 65536 –50 –25 0 25 50 75 100 125 CODE CODE TEMPERATURE (°C) 18645 G07 18645 G08 18645 G09 18645fb 8