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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AMC7812SPAPR датащи(PDF) 4 Page - Texas Instruments |
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AMC7812SPAPR датащи(HTML) 4 Page - Texas Instruments |
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4 / 92 page  AMC7812 SBAS513E – JANUARY 2011 – REVISED SEPTEMBER 2013 www.ti.com ELECTRICAL CHARACTERISTICS (continued) At TA = –40°C to +105°C, AVDD = DVDD = 4.5V to 5.5V, AVCC = +15V, AGND = DGND = 0V, IOVDD = 2.7V to 5.5V, internal 2.5V reference, and the DAC output span = 0V to 5V, unless otherwise noted. AMC7812 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INTERNAL REFERENCE Output voltage TA = +25°C, REF-OUT pin 2.495 2.5 2.505 V Output impedance 0.4 Ω Reference temperature coefficient 10 25 ppm/°C Output current (sourcing/sinking) ±5 mA TA = +25°C, f = 1kHz 260 nV/ √Hz Output voltage noise f = 0.1Hz to 10Hz 13 µVPP ADC PERFORMANCE ADC DC ACCURACY (for AVDD = 5V) Resolution 12 Bits INL Integral nonlinearity ±0.5 ±1 LSB DNL Differential nonlinearity ±0.5 ±1 LSB Single-Ended Mode Offset error ±1 ±3 LSB Offset error match ±0.4 LSB Gain error External reference ±1 ±5 LSB Gain error match ±0.4 LSB Differential Mode External reference, 0V to (2 · VREF) mode, VCM = ±2 ±5 LSB 2.5V Gain error External reference, 0V to VREF mode, ±1 ±5 LSB VCM = 1.25V Gain error match ±0.5 LSB 0V to (2 · VREF) mode, VCM = 2.5V ±1 ±3 LSB Zero code error External reference, 0V to VREF mode, ±1 ±3 LSB VCM = 1.25V Zero code error match ±0.5 LSB Common mode rejection DC, 0V to (2 · VREF) mode 67 dB SAMPLING DYNAMICS External single analog channel, auto mode 500 kSPS Conversion rate External single analog channel, direct mode 167 kSPS Conversion time(4) External single analog channel 2 µs Autocycle update rate(4) All 16 single-ended inputs enabled 32 µs Throughput rate SPI clock 12MHz or greater, single channel 500 kSPS ANALOG INPUT(5) Single-ended, 0V to VREF 0 VREF V Single-ended, 0V to (2 · VREF) 0 2 · VREF V Full-scale input voltage VIN+ – VIN-, fully-differential, 0V to VREF –VREF +VREF V VIN+ – VIN-, fully-differential, 0V to (2 · VREF) –2 · VREF 2 · VREF V Absolute input voltage GND - 0.2 AVDD + 0.2 V 0V to VREF mode 118 Input capacitance(4) pF 0V to (2 · VREF) mode 73 DC input leakage current Unselected ADC input ±10 µA (4) Sampled during initial release to ensure compliance; not subject to production testing. (5) VIN+ or VIN– must remain within GND - 0.2V and AVDD + 0.2V. See Analog Inputs section. 4 Submit Documentation Feedback Copyright © 2011–2013, Texas Instruments Incorporated Product Folder Links: AMC7812 |
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