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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD7779ACPZ датащи(PDF) 7 Page - Analog Devices |
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AD7779ACPZ датащи(HTML) 7 Page - Analog Devices |
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7 / 101 page  AD7779 Data Sheet Rev. A | Page 6 of 100 SPECIFICATIONS AVDD1x = +1.65 V, AVSSx1 = −1.65 V (dual supply operation), AVDD1x = 3.3 V, AVSSx = AGND (single-supply operation), AVDD2x − AVSSx = 2.2 V to 3.6 V; IOVDD = 1.8 V to 3.6 V; DGND = 0 V, REFx+/REFx− = 2.5 V AVSSx (internal/external), master clock (MCLK) = 8192 kHz for high resolution mode and 4096 kHz for low power mode, ODR = 16 kSPS for high resolution mode and 4 kSPS for low power mode; all specifications at TMIN to TMAX, unless otherwise noted. Table 1. Parameter Test Conditions/Comments Min Typ Max Unit ANALOG INPUTS Differential Input Voltage Range VREF = (REFx+ − REFx−) ±VREF/PGAGAIN V Single-Ended Input Voltage Range 0 to VREF/PGAGAIN V AINx± Common-Mode Input Range AVSSx + 0.10 (AVDD1x + AVSSx)/2 AVDD1x − 0.10 V Absolute AINx± Voltage Limits AVSSx + 0.10 AVDD1x − 0.10 DC Input Current Single-Ended HR, MCLK = 8192 kHz ±4 nA Low power mode, MCLK = 4096 kHz ±1.5 nA Differential HR, MCLK = 8192 kHz ±1.5 nA Low power mode, MCLK = 4096 kHz ±0.6 nA Input Current Drift 50 pA/°C AC Input Capacitance 8 pF PGA Gain Settings 1, 2, 4, or 8 Bandwidth Small signal, high resolution mode 2 MHz Small signal, low power mode 512 kHz Large signal, high resolution mode 5 kHz Large signal, low power mode 1.5 kHz REFERENCE Internal Initial Accuracy REF_OUT, TA = 25°C 2.5 − 0.2% 2.5 2.5 + 0.2% V Temperature Coefficient ±10 ±38 ppm/°C Reference Load Current, IL −10 +10 mA DC Power Supply Rejection Line regulation 95 dB Load Regulation, ∆VOUT/∆IL 100 µV/mA Voltage Noise eNp-p, 0.1 Hz to 10 Hz 6.8 µV rms Voltage Noise Density eN, 1 kHz, 2.5 V reference 273.5 nV/√Hz Turn On Settling Time 100 nF 1.5 ms External Input Voltage VREF = (REFx+ − REFx−) 1 2.5 AVDD1x V Buffer Headroom AVSSx + 0.1 AVDD1x − 0.1 REFx− Input Voltage AVSSx AVDD1x – REFx+ V Average REFx± Input Current Current per channel Reference buffer disabled, high resolution mode 18 µA/V Reference buffer precharge mode (pre-Q), high resolution mode 600 nA/V Reference buffer disabled, low power mode 4.5 µA/V Reference buffer pre-Q, low power mode 100 nA/V |
Аналогичный номер детали - AD7779ACPZ |
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Аналогичное описание - AD7779ACPZ |
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