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LTC2472IDDTRPBF Datasheet(PDF) 3 Page - Linear Technology |
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LTC2472IDDTRPBF Datasheet(HTML) 3 Page - Linear Technology |
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3 / 20 page  LTC2470/LTC2472 3 24702f ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS MIN TYP MAX UNITS Resolution (No Missing Codes) (Note 3) l 16 Bits Integral Nonlinearity Output Rate 250sps (Note 4) Output Rate 1000sps (Note 4) l l 2 8 8.5 12 LSB LSB Offset Error l ±1 ±2.5 mV Offset Error Drift 0.05 LSB/°C Gain Error l ±0.01 ±0.25 % of FS Gain Error Drift l 0.15 LSB/°C Transition Noise 3μVRMS Power Supply Rejection DC 80 dB The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) ANALOG INPUTS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC Supply Voltage l 2.7 5.5 V ICC Supply Current Conversion Conversion Nap Sleep CS = GND (Note 6) LTC2472 CS = GND (Note 6) LTC2470 CS = VCC (Note 6) CS = VCC (Note 6) l l l l 3.5 2.5 800 0.2 5 4 1500 2 mA mA μA μA The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN+ Positive Input Voltage Range LTC2472 l 0VREF V VIN– Negative Input Voltage Range LTC2472 l 0VREF V VIN Input Voltage Range LTC2470 l 0VREF V VOR+, VUR+ Overrange/Underrange Voltage, IN+ VIN– = 0.625V 8 LSB VOR–, VUR– Overrange/Underrange Voltage, IN– VIN+ = 0.625V 8 LSB CIN IN+, IN–, IN Sampling Capacitance 0.35 pF IDC_LEAK(IN+, IN–, IN) IN+, IN– DC Leakage Current (LTC2472) IN DC Leakage Current (LTC2470) VIN = GND (Note 5) VIN = VCC (Note 5) l l –10 –10 ±1 ±1 10 10 nA nA ICONV Input Sampling Current (Note 8) 50 nA VREF Reference Output Voltage l 1.247 1.25 1.253 V Reference Voltage Coefficient (Note 9) C-Grade I-Grade l ±2 ±5 ±10 ppm/°C ppm/°C Reference Line Regulation 2.7V ≤ VCC ≤ 5.5V –90 dB Reference Short Circuit Current VCC = 5.5, Forcing Output to GND l 35 mA COMP Pin Short Circuit Current VCC = 5.5, Forcing Output to GND l 200 μA Reference Load Regulation 2.7V ≤ VCC ≤ 5.5V, IOUT = 100μA Sourcing 3.5 mV/mA Reference Output Noise Density CCOMP= 0.1μF, CREFOUT = 0.1μF, At f = 1ksps 30 nV/√Hz POWER REQUIREMENTS |
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