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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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INA228 датащи(PDF) 5 Page - Texas Instruments |
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INA228 датащи(HTML) 5 Page - Texas Instruments |
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5 / 48 page  6.5 Electrical Characteristics at TA = 25 °C, VS = 3.3 V, VSENSE = VIN+ – VIN– = 0 V, VCM = VIN– = 48 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT VCM Common-mode input range TA = –40 °C to +125 °C –0.3 85 V VVBUS Bus voltage input range 0 85 V CMRR Common-mode rejection –0.3 V < VCM < 85 V, TA = –40 °C to +125 °C 154 170 dB VDIFF Shunt voltage input range TA = –40 °C to +125 °C, ADCRANGE = 0 –163.84 163.84 mV TA = –40 °C to +125 °C, ADCRANGE = 1 –40.96 40.96 mV Vos Shunt offset voltage VCM = 48 V, TCT > 280 µs ±0.3 ±1 µV VCM = 0 V, TCT > 280 µs ±0.3 ±1 µV dVos/dT Shunt offset voltage drift TA = –40 °C to +125 °C 2 ±10 nV/°C Vos_bus VBUS offset voltage VBUS = 20 mV ±1.0 ±2.5 mV dVos/dT VBUS offset voltage drift TA = –40 °C to +125 °C ±4.0 ±20 µV/°C PSRR Power-supply rejection ratio VS = 2.7 V to 5.5 V, TA = –40 °C to +125 °C ±0.05 ±0.5 µV/V IB Input bias current Either input, IN+ or IN–, VCM = 85 V 0.1 2.5 nA ZVBUS VBUS pin input impedance Active mode 0.8 1 1.2 MΩ IVBUS VBUS pin leakage current Shutdown mode, VBUS = 85 V 10 nA RDIFF Input differential impedance Active mode, VIN+ – VIN– < 164 mV 92 kΩ DC ACCURACY GSERR Shunt voltage gain error VCM = 24 V ±0.01 ±0.05 % GS_DRFT Shunt voltage gain error drift ±20 ppm/°C GBERR VBUS voltage gain error ±0.01 ±0.05 % GB_DRFT VBUS voltage gain error drift ±20 ppm/°C PTME Power total measurment error (TME) TA = –40 °C to +125 °C, at full scale ±0.5 % ETME Energy and charge TME at full scale power ±1 % ADC resolution 20 Bits 1 LSB step size Shunt voltage, ADCRANGE = 0 312.5 nV Shunt voltage, ADCRANGE = 1 78.125 nV Bus voltage 195.3125 µV Temperature 7.8125 m°C TCT ADC conversion-time(1) 50 µs 84 150 280 540 1052 2074 4120 INL Integral Non-Linearity ±2 m% DNL Differential Non-Linearity 0.2 LSB CLOCK SOURCE FOSC Internal oscillator frequency 1 MHz FOSC_TOL Internal oscillator frequency tolerance TA = 25 °C ±0.5 % TA = –40 °C to +125 °C ±1 % www.ti.com INA228 SLYS021 – JANUARY 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 5 Product Folder Links: INA228 |
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