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LTWV Datasheet(PDF) 9 Page - Linear Technology |
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LTWV Datasheet(HTML) 9 Page - Linear Technology |
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9 / 40 page  LTC2411/LTC2411-1 9 TYPICAL PERFOR A CE CHARACTERISTICS Offset Error vs Output Data Rate Resolution (NOISERMS ≤ 1LSB) vs Output Data Rate OUTPUT DATA RATE (READINGS/SEC) –120 –60 –20 40 –80 –100 –40 20 0 20 40 60 80 2411 G28 100 10 030 50 70 90 VCC = 5V REF– = GND VINCM = 2.5V VIN = 0V FO = EXT OSC TA = 25°C VREF = 2.5V VREF = 5V OUTPUT DATA RATE (READINGS/SEC) 0 20 21 80 2411 G29 19 18 20 40 50 100 22 60 10 30 90 70 VCC = 5V REF– = GND VINCM = 2.5V VIN = 0V FO = EXT OSC RES = LOG2(VREF/NOISERMS) TA = 25°C VREF = 2.5V VREF = 5V Resolution (INLMAX ≤ 1LSB) vs Output Data Rate OUTPUT DATA RATE (READINGS/SEC) 10 14 18 22 12 16 20 20 40 60 80 2411 G30 100 10 030 50 70 90 VCC = 5V REF– = GND VINCM = 2.5V VIN = 0V FO = EXT OSC RES = LOG2(VREF/INLMAX) TA = 25°C VREF = 2.5V VREF = 5V VCC (Pin 1): Positive Supply Voltage. Bypass to GND (Pin 6) with a 10 µF tantalum capacitor in parallel with 0.1 µF ceramic capacitor as close to the part as possible. REF+ (Pin 2), REF– (Pin 3): Differential Reference Input. The voltage on these pins can have any value between GND and VCC as long as the reference positive input, REF+, is more positive than the reference negative input, REF –, by at least 0.1V. IN+ (Pin 4), IN– (Pin 5): Differential Analog Input. The voltage on these pins can have any value between GND – 0.3V and VCC + 0.3V. Within these limits, the converter bipolar input range (VIN = IN+ – IN–) extends from – 0.5 • (VREF) to 0.5 • (VREF). Outside this input range, the converter produces unique overrange and underrange output codes. GND (Pin 6): Ground. Connect this pin to a ground plane through a low impedance connection. CS (Pin 7): Active LOW Digital Input. A LOW on this pin enables the SDO digital output and wakes up the ADC. Following each conversion the ADC automatically enters PI FU CTIO S Conversion Current vs Temperature Sleep Mode Current vs Temperature TEMPERATURE ( °C) –45 200 210 220 75 2411 G25 190 180 160 –15 15 45 –30 90 0 30 60 170 240 230 FO = GND CS = GND SCK = NC SDO = NC VCC = 5.5V VCC = 2.7V VCC = 5V VCC = 3V Conversion Current vs Output Data Rate OUTPUT DATA RATE (READINGS/SEC) 0 450 550 650 80 2411 G26 350 250 400 500 600 300 200 150 20 10 40 30 60 70 90 50 100 REF+ = VCC REF– = GND IN+ = GND IN– = GND TA = 25°C SCK = NC SDO = NC CS = GND FO = EXT OSC VCC = 3V VCC = 5V TEMPERATURE ( °C) –45 1 2 3 75 2411 G27 0 –15 15 45 –30 90 0 30 60 5 4 FO = GND CS = VCC SCK = NC SDO = NC VCC = 5.5V VCC = 2.7V VCC = 5V VCC = 3V |
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