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AMC7832IPAPR 数据表(PDF) 10 Page - Texas Instruments |
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AMC7832IPAPR 数据表(HTML) 10 Page - Texas Instruments |
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10 / 74 page  AMC7832 SLAS836 – MARCH 2014 www.ti.com Electrical Characteristics (continued) The electrical ratings specified in this section apply to all specifications in this document, unless otherwise noted. These specifications are interpreted as conditions that do not degrade the device parametric or functional specifications for the life of the product containing it. AVDD = DVDD = +4.5 to +5.5-V, AVCC = +12-V, AVEE = -12-V, IOVDD = +1.8 to +5.5-V, AGND = DGND = 0-V, AVSSA,B,C,D = 0-V (DAC groups in positive ranges) or -12-V (DAC groups in negative range), DAC output range = 0 to 10-V for all groups, no load on the DACs, TA = -40°C to +105°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ADC AND TEMPERATURE SENSOR SPECIFICATIONS Resolution 12 Bits Unipolar input channels ±0.5 ±1 LSB INL Integral nonlinearity Bipolar input channels ±0.75 ±1.5 LSB DNL Differential nonlinearity Specified monotonic. All input channels ±0.5 ±1 LSB UNIPOLAR ANALOG INPUTS: LV_ADC12 to LV_ADC16 AVDD + Absolute input voltage range GND – 0.2 V 0.2 Full scale input range 0 2 × VREF V Input capacitance VREF measured at REF_CMP terminal 34 pF DC input leakage current Unselected ADC input ±10 µA Offset error ±2 ±5 LSB Offset error match ±2.5 LSB Gain error(7) ±1 ±5 LSB Gain error match ±1 LSB Single unipolar input, temperature sensor Update time 11.5 µs disabled BIPOLAR ANALOG INPUTS: ADC_0 to ADC_11 Absolute input voltage range –13 +13 V Full scale input range -12.5 12.5 V Input resistance 175 k Ω Offset error ±5 ±10 LSB Gain error(7) ±5 ±10 LSB Single bipolar input, temperature sensor Update time 34.5 µs disabled TEMPERATURE SENSOR Operating range -40 125 °C Accuracy TA = -40°C to 125°C, AVDD = +5-V ±1.25 ±2.5 °C Resolution LSB size 0.25 °C Update time All ADC input channels disabled 256 µs AUTOCYCLE UPDATE TIME All 17 ADC inputs enabled, temperature 471.5 µs sensor disabled Autocycle update time All 17 ADC inputs and temperature 727.5 µs sensor enabled (7) Internal reference contribution not included. 10 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: AMC7832 |
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