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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMS320LC2401AVFS датащи(PDF) 108 Page - Texas Instruments |
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TMS320LC2401AVFS датащи(HTML) 108 Page - Texas Instruments |
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108 / 134 page  TMS320LF2407A,TMS320LF2406A, TMS320LF2403A, TMS320LF2402A TMS320LC2406A, TMS320LC2404A, TMS320LC2403A, TMS320LC2402A DSP CONTROLLERS SPRS145K − JULY 2000 − REVISED AUGUST 2005 108 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 10-bit analog-to-digital converter (ADC) (continued) operating characteristics over recommended operating condition ranges† PARAMETER DESCRIPTION MIN TYP MAX UNIT VCCA = 3.3 V 10 15 mA ICCA Analog supply current VCCA = VREFHI = 3.3 V PLL or OSC power down 1 µA IADREFHI VREFHI input current 0.75 1.5 mA IADCIN Analog input leakage 1 µA C Analog input capacitance Typical capacitive load on Non-sampling 10 pF Cai Analog input capacitance Typical capacitive load on analog input pin Sampling 30 pF td(PU) Delay time, power-up to ADC valid Time to stabilize analog stage after power-up 10 µs ZAI Analog input source impedance Analog input source impedance needed for conversions to remain within specifications at min tw(SH) 53 10 Ω Zero-offset error "2 LSB † Absolute resolution = 3.22 mV. At VREFHI = 3.3 V and VREFLO = 0 V, this is one LSB. As VREFHI decreases, VREFLO increases, or both, the LSB size decreases. Therefore, the absolute accuracy and differential/integral linearity errors in terms of LSBs increase. EDNL and EINL PARAMETER DESCRIPTION CLKOUT MIN MAX UNIT EDNL‡ Differential nonlinearity error Difference between the actual step width and the ideal value 30 MHz "2 LSB EINL‡ Integral nonlinearity error Maximum deviation from the best straight line through the ADC transfer characteristics, excluding the quantization error 30 MHz "2 LSB ‡ Test conditions: VREFHI = VCCA , VREFLO = VSSA |
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