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INA229-Q1 Datasheet(PDF) 5 Page - Texas Instruments |
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INA229-Q1 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 36 page  5 INA229-Q1 www.ti.com SLYS024 – MAY 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated (1) Subject to oscillator accuracy and drift 6.5 Electrical Characteristics at TA = 25 °C, VS = 3.3V, VSENSE = VIN+ - VIN- = 0V, VCM = VIN- = 48 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT VCM Common-mode input range VSENSE = 0V; TA = –40°C to +125°C –0.3 85 V VVBUS Bus voltage input range 0 85 V CMRR Common-mode rejection –0.3V < VCM < 85V, TA = – 40°C to +125°C, ADCRANGE = 0 146 160 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 = 48V, TCT > 280µs TBD ±2 µV VCM = 0V, TCT > 280µs TBD ±2 µV dVos/dT Shunt Offset voltage drift TA = –40°C to +125°C TBD ±0.01 µV/ ℃ Vos_bus VBUS Offset voltage TBD ±5 mV dVos/dT VBUS Offset voltage drift TA = –40°C to +125°C TBD ±100 µV/ ℃ PSRR Power supply rejection ratio Vs = 2.7 V to 5.5 V, TA = –40°C to +125°C 0.2 ±1 µV/V IB Input bias current IN+, IN- 0.1 5 nA ZVBUS Bus voltage input impedance (VBUS pin) Active mode 1 MΩ Shutdown mode TBD ZSHUNT Input differential impedance IN+, IN- TBD MΩ DC ACCURACY GSERR Shunt voltage gain error VCM = 24V TBD ±0.1 % GSERR_D RFT Shunt voltage gain error drift TBD ±20 ppm/ ℃ GBERR VBUS voltage gain error TBD ±0.1 % GBERR_D RFT VBUS voltage gain error drift TBD ±20 ppm/ ℃ 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 ADC Conversion-time(1) 50 µs 84 150 280 540 1052 2074 4120 CLOCK SOURCE FOSC Internal oscillator frequency 0.99 1 1.01 MHz FOSC_AC C Internal oscillator frequency accuracy TA = –40°C to +125°C ±1% TEMPERATURE SENSOR Temperature sensor measurement range –40 +125 C Temperature accuracy ±0.1 ±2 C |
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