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LDC1000 Datasheet(PDF) 6 Page - Texas Instruments |
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LDC1000 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 36 page LDC1000 SNOSCX2C – SEPTEMBER 2013 – REVISED SEPTEMBER 2015 www.ti.com 6.5 Electrical Characteristics Unless otherwise specified, all limits ensured for TA = TJ = 25°C, VDD = 5.0 V, VIO = 3.3 V (1) (2) PARAMETER TEST CONDITIONS MIN(3) TYP(4) MAX(3) UNIT POWER VDD Analog Supply Voltage 4.75 5 5.25 V VIO IO Supply Voltage VIO≤VDD 1.8 3.3 5.25 V IDD PWR_MODE = 1, no sensor Supply Current on VDD pin 1.7 2.3 mA connected IVIO IO Supply Current Static current 14 µA IDD_LP Standby Mode Supply Current PWR_MODE = 0, no sensor 250 µA on VDD pin connected tSTART From POR to ready-to-convert. Crystal Start-Up Time 2 ms not used for frequency counter LDC ƒSENSOR_MIN Minimum sensor frequency 5 kHz ƒSENSOR_MAX Maximum sensor frequency 5 MHz ASENSOR_MIN Minimum sensor amplitude 1 VPP ASENSOR_MAX Maximum sensor amplitude 4 VPP tREC Oscillation start-up time after RP Recovery time 10 1/ƒsensor under-range condition RP_MIN Minimum Sensor RP Range 798 Ω RP_MAX Maximum Sensor RP Range 3.93 M Ω RP_RES RP Measurement Resolution 16 Bits L Res Inductance Measurement RESPONSE_TIME = b111 (6144), 24 Bits Resolution ƒEXT = 8 MHz, ƒSENSOR = 5 kHz tS_MIN Minimum programmable settling time 192/ƒSE Minimum Response Time s of digital filter NSOR tS_MAX Maximum programmable settling time 6144/ƒS Maximum Response Time s of digital filter ENSOR EXTERNAL CLOCK/CRYSTAL FOR FREQUENCY COUNTER Crystal Frequency 8 MHz Startup time 30 ms External Clock Frequency 8 MHz Clock Input High Voltage VIO V DIGITAL I/O CHARACTERISTICS VIH Logic 1 Input Voltage 0.8×VIO V VIL Logic 0 Input Voltage 0.2×VIO V VOH Logic 1 Output Voltage ISOURCE=400 µA VIO–0.3 V VOL Logic 0 Output Voltage ISINK=400 µA 0.3 V IIOHL Digital IO Leakage Current –500 500 nA (1) Electrical Characteristics table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating of the device such that TJ = TA. No specification of parametric performance is indicated in the electrical tables under conditions of internal self-heating where TJ > TA. Absolute Maximum Ratings indicate junction temperature limits beyond which the device may be permanently degraded, either mechanically or electrically. (2) The maximum power dissipation is a function of TJ(MAX), RθJA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is PDMAX = (TJ(MAX) - TA)/ RθJA. All numbers apply for packages soldered directly onto a PC board. The package thermal impedance is calculated in accordance with JESD 51-7. (3) Limits are specified by testing, design, or statistical analysis at 25°C. Limits over the operating temperature range are specified through correlations using statistical quality control (SQC) method. (4) Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not specified on shipped production material. 6 Submit Documentation Feedback Copyright © 2013–2015, Texas Instruments Incorporated Product Folder Links: LDC1000 |
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