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TMP512AIRSAR Datasheet(PDF) 4 Page - Texas Instruments |
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TMP512AIRSAR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 61 page TMP512 TMP513 SBOS491A – JUNE 2010 – REVISED MAY 2011 www.ti.com ELECTRICAL CHARACTERISTICS: V+ = +12V Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, V+ = 12V, VSENSE = (VIN+ – VIN–) = 32mV, PGA = ÷ 1, and BRNG (1) = 1, unless otherwise noted. TMP512, TMP513 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT Current Sense (Input) Voltage Range PGA = ÷ 1 0 ±40 mV PGA = ÷ 2 0 ±80 mV PGA = ÷ 4 0 ±160 mV PGA = ÷ 8 0 ±320 mV Bus Voltage (Input Voltage) Range(2) BRNG = 0 0 16 V BRNG = 1 0 32 V Common-Mode Rejection CMRR VIN+ = 0V to 26V 100 120 dB Offset Voltage, RTI(3) VOS PGA = ÷ 1 ±10 ±100 μV PGA = ÷ 2 ±20 ±125 μV PGA = ÷ 4 ±30 ±150 μV PGA = ÷ 8 ±40 ±200 μV vs Temperature 0.2 μV/°C V+ = 3V to 5.5V, Configuration 3(4) 10 μV/V vs Power Supply PSRR V+ = 4.5V to 26V, subregulator supply 0.1 μV/V Current Sense Gain Error ±0.04 % vs Temperature 0.0025 % Input Impedance Active Mode VIN+ Pin 20 μA VIN– Pin 20 || 320 μA || kΩ Input Leakage Power-Down Mode VIN+ Pin 0.1 0.5 μA VIN– Pin 0.1 0.5 μA DC ACCURACY ADC Basic Resolution 12 Bits 1 LSB Step Size Shunt Voltage 10 μV Bus Voltage 4 mV Current Measurement Error ±0.2 ±0.5 % over Temperature ±1 % Bus Voltage Measurement Error ±0.2 ±0.5 % over Temperature ±1 % Differential Nonlinearity ±0.1 LSB ADC TIMING ADC Conversion Time 12-Bit 665 733 μs 11-Bit 345 380 μs 10-Bit 185 204 μs 9-Bit 105 117 μs (1) BRNG is bit 13 of Configuration Register 1. (2) This parameter only expresses the full-scale range of the ADC scaling. In no event should more than 26V be applied to this device. (3) Referred-to-input (RTI). (4) See Subregulator section. 4 Copyright © 2010–2011, Texas Instruments Incorporated |
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