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LTM2987 Datasheet(PDF) 9 Page - Analog Devices |
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LTM2987 Datasheet(HTML) 9 Page - Analog Devices |
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9 / 114 page  LTC2971 9 Rev. 0 For more information www.analog.com The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C. VVPWR = 12V, VVDDIO = VVDD33,VDD33, VDD25, REFP, and REFM pins floating, unless otherwise indicated. CVDD33 = 100nF, CVDD25 = 100nF, and CREF = 100nF. (Note 2) ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS TUE_VS_VOUT Total Unadjusted Error Low Resolution Mode 9V ≤ |VIN_VS| ≤ 60V l ±1.5 % of Reading 0V ≤ |VIN_VS| ≤ 9V l ±135 mV LTC2971-3, 0.5V ≤ VVOUT_SNS1 – VGNDSNS1 ≤ 1.8V l ±1.25 % of Reading LTC2971-3, 0V ≤ VVOUT_SNS1 – VGNDSNS1 ≤ 0.5V l ±6 mV High Resolution Mode 4.5V ≤ |VIN_VS| ≤ 34V l ±1.25 % of Reading 0V ≤ |VIN_VS| ≤ 4.5V l ±56 mV LTC2971-3, 0.5V ≤ VVOUT_SNS1 – VGNDSNS1 ≤ 1.5V l ±1.25 % of Reading LTC2971-3, 0V ≤ VVOUT_SNS1 – VGNDSNS1 ≤ 0.5V l ±6 mV tS_VS Update Rate 12.21 μs VIN_SNS Input Characteristics VIN_SNS VIN_SNS Input Voltage Range (Note 11) l 0 60 V RVIN_SNS VIN_SNS Input Resistance l 400 500 625 kΩ TUE_VS_VIN VIN_ON, VIN_OFF Threshold Total Unadjusted Error Low Resolution Mode 9V ≤ VIN_SNS ≤ 60V l ±1.5 % of Reading 0V ≤ VIN_SNS ≤ 9V l ±135 mV High Resolution Mode 4.5V ≤ VIN_SNS ≤ 34V l ±1.25 % of Reading 0V ≤ VIN_SNS ≤ 4.5V l ±56 mV TUE_ADC_ VIN READ_VIN Total Unadjusted Error 10V ≤ VIN_SNS ≤ 60V l ±0.5 % of Reading 0V ≤ VIN_SNS ≤ 10V (Note 11) l ±50 mV DAC Soft-Connect Comparator Characteristics VOS_CMP Offset Voltage VDACn programmed to 0.2V l ±1 ±18 mV VDACn programmed to 1.38V l ±2 ±26 mV VDACn programmed to 2.65V l ±3 ±52 mV Input Current Sense Characteristics VIIN Input Range Single-Ended Voltage: VIIN_SNSP, VIIN_SNSM (Note 11) l 3 60 V Differential Current Sense Voltage: VIIN_SNSP – VIIN_SNSM l –80 80 mV IIIN Input Current IIN_SNSP and IIN_SNSM Inputs ±10 μA Differential Input Current IIN_SNSPn and IIN_SNSMn Inputs, |VIN_DIFF| = 80mV ±0.1 μA TUE_ADC_IIN Total Unadjusted Error 20mV ≤ |VIIN_SNSP – VIIN_SNSM| ≤ 80mV l ±0.6 % of Reading |VIIN_SNSP – VIIN_SNSM | ≤ 20mV l ±120 μV VOS_IIN Offset Error VIIN_SNSP = VIIN_SNSM l ±70 μV |
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