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HPA01112AIRGTR Datasheet(PDF) 3 Page - Texas Instruments |
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HPA01112AIRGTR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 37 page INA230 www.ti.com SBOS601 – FEBRUARY 2012 ELECTRICAL CHARACTERISTICS At TA = +25°C, VS = +3.3 V, VIN+ = 12 V, VSENSE = (VIN+ – VIN–) = 0 mV, and VBUS = 12 V, unless otherwise noted. INA230 PARAMETER CONDITIONS MIN TYP MAX UNIT SHUNT INPUT Shunt voltage input range -81.92 81.9175 mV CMR Common-mode rejection VIN+ = 0 V to +28 V 100 120 dB ±10 ±50 μV VOS Shunt offset voltage, RTI(1) TA = –40°C to +125°C 0.1 0.5 μV/°C PSRR vs power supply VS = +2.7 V to +5.5 V 10 μV/V BUS INPUT Bus voltage input range(2) 0 28 V ±5 ±30 mV VOS Bus offset voltage, RTI(1) TA = –40°C to +125°C 10 40 μV/°C PSRR vs power supply 2 mV/V BUS pin input impedance 830 k Ω INPUT IIN+, IIN- Input bias current 10 μA Input leakage(3) (VIN+) + (VIN–), Power-Down mode 0.1 0.5 μA DC ACCURACY ADC native resolution 16 Bits Shunt voltage 2.5 μV 1 LSB step size Bus voltage 1.25 mV 0.2 0.5 % Shunt voltage gain error TA = –40°C to +125°C 10 50 ppm/ °C 0.2 0.5 % Bus voltage gain error TA = –40°C to +125°C 10 50 ppm/ °C Differential nonlinearity ±0.1 LSB CT bit = 000 140 154 μs CT bit = 001 204 224 μs CT bit = 010 332 365 μs CT bit = 011 588 646 μs ADC conversion time CT bit = 100 1.1 1.21 ms CT bit = 101 2.116 2.328 ms CT bit = 110 4.156 4.572 ms CT bit = 111 8.244 9.068 ms SMBus SMBus timeout(4) 28 35 ms DIGITAL INPUT/OUTPUT Input capacitance 3 pF Leakage input current 0 ≤ VIN ≤ VS 0.1 1 μA VIH High-level input voltage 0.7(VS) 6 V VIL Low-level input voltage –0.5 0.3(VS) V VOL Low-level output voltage (SDA, ALERT) IOL = 3 mA 0 0.4 V Hysteresis 500 mV (1) RTI = Referred-to-input. (2) Although the input range is 28 V, the full-scale range of the ADC scaling is 40.96 V. Do not apply more than 28 V. See the Basic ADC Functions section for more details (3) Input leakage is positive (current flowing into the pin) for the conditions shown at the top of this table. Negative leakage currents can occur under different input conditions. (4) SMBus timeout in the INA230 resets the interface any time SCL is low for more than 28 ms. Copyright © 2012, Texas Instruments Incorporated 3 |
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