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LTC2489IDETRPBF Datasheet(PDF) 3 Page - Linear Technology |
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LTC2489IDETRPBF Datasheet(HTML) 3 Page - Linear Technology |
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3 / 24 page  LTC2489 3 2489f ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS Resolution (No Missing Codes) 0.1V ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS (Note 5) 16 Bits Integral Nonlinearity 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V (Note 6) 2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V (Note 6) ● 2 1 20 ppm of VREF ppm of VREF Offset Error 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 13) ● 0.5 2.5 μV Offset Error Drift 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC 10 nV/°C Positive Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF ● 32 ppm of VREF Positive Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN– = 0.25VREF 0.1 ppm of VREF/°C Negative Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF ● 32 ppm of VREF Negative Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF 0.1 ppm of VREF/°C Total Unadjusted Error 5V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V 2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V 15 15 15 ppm of VREF ppm of VREF ppm of VREF Output Noise 2.7V < VCC < 5.5V, 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 12) 0.6 μVRMS CONVERTER CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS Input Common Mode Rejection DC 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5) ● 140 dB Input Normal Mode Rejection 50Hz/60Hz ±2% 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Notes 5, 9) ● 87 dB Reference Common Mode Rejection DC 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 5) ● 120 140 dB Power Supply Rejection DC VREF = 2.5V, IN+ = IN– = GND 120 dB Power Supply Rejection, 50Hz ±2% VREF = 2.5V, IN+ = IN– = GND (Notes 7, 9) 120 dB Power Supply Rejection, 60Hz ±2% VREF = 2.5V, IN+ = IN– = GND (Notes 8, 9) 120 dB ANALOG INPUT AND REFERENCE The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IN+ Absolute/Common Mode IN+ Voltage (IN+ Corresponds to the Selected Positive Input Channel) GND – 0.3V VCC + 0.3V V IN– Absolute/Common Mode IN– Voltage (IN– Corresponds to the Selected Negative Input Channel) GND – 0.3V VCC + 0.3V V VIN Input Differential Voltage Range (IN+ – IN–) ● –FS +FS V FS Full Scale of the Differential Input (IN+ – IN–) ● 0.5VREF V LSB Least Significant Bit of the Output Code ● FS/216 REF+ Absolute/Common Mode REF+ Voltage ● 0.1 VCC V REF– Absolute/Common Mode REF– Voltage ● GND REF+ – 0.1V V VREF Reference Voltage Range (REF+ – REF–) ● 0.1 VCC V CS(IN+)IN+ Sampling Capacitance 11 pF CS(IN–)IN– Sampling Capacitance 11 pF CS(VREF)VREF Sampling Capacitance 11 pF IDC_LEAK(IN+) IN+ DC Leakage Current Sleep Mode, IN+ = GND ● –10 1 10 nA |
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