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TPIC83000-Q1 数据表(PDF) 5 Page - Texas Instruments |
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TPIC83000-Q1 数据表(HTML) 5 Page - Texas Instruments |
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5 / 44 page  VDIO = (V – VOS – (TCVOS2 × Temp) – (TCVOS2 × Temp ) × digital input 2 Gain × (1 + (TC × Temp)) Gain1 VccA × 1024 TPIC83000-Q1 www.ti.com SLDS171 – NOVEMBER 2009 Principles of Operation The system transfer equation is shown in Equation 1. (1) Where Vinput = Voltage input to the Logic (DSP) block. This voltage is the same as the output of the Analog Front End VDIOdigital = Digital output of the logic (DSP) block Temp = Difference between ambient temperature and room temperature VOS = Offset adjust TCVOS1 = Offset TC1 adjust TCVOS2 = Offset TC2 adjust Gain = Gain TCGain1 = Gain TC1 adjust VccA = ADC reference VDIOdigital = 0 for lower clamp (TA = –40°C to 85°C) VDIOdigital = 1023 for upper clamp (TA = –40°C to 85°C) The range and resolution of the parameters is given in Table 1. Table 1. Output Parameters ADJUSTMENT DECIMAL BINARY ADJUSTMENT ITEM SYMBOL BIT NO. DEFAULT RANGE VALUE VALUE VALUE 511 111111111 +120 mV Input coarse offset TRVOSC 9 ±120 mV 0 mV 256 100000000 0 mV 0 0 -120 mV 255 11111111 4 × 510 μV Input fine offset TRVOSF 8 0 to 4 × 510 μV 0 μV 0 0 0 63 1111111 (+25 μV/°C) × 3 Input offset first-order temperature TRTCVOS1 7 (±25 μV/°C) × 3 0 μV/°C 0 0 0 coefficient -64 10000000 (-25 μV/°C) × 3 Input offset 63 1111111 40 nV/°C2 second-order 0 0 0 TRTCVOS2 7 ±40 nV/°C2 0 μV/°C2 temperature -64 10000000 -40 nV/°C2 coefficient 255 1111111 125% Gain TRGAIN 9 100 + 25% 100% 0 0 100% -255 10000000 75% Gain first-order 0 0 0 ppm/°C temperature TRTCGAIN1 6 -900 to 0 ppm/°C 0 ppm/°C -63 1 -900 ppm/°C coefficient Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): TPIC83000-Q1 |
类似零件编号 - TPIC83000-Q1 |
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类似说明 - TPIC83000-Q1 |
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