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AD7177-2BRUZ Arkusz danych(PDF) 6 Page - Analog Devices |
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AD7177-2BRUZ Arkusz danych(HTML) 6 Page - Analog Devices |
6 / 61 page Data Sheet AD7177-2 Rev. B | Page 5 of 60 Parameter Test Conditions/Comments Min Typ Max Unit Voltage Noise eN, 0.1 Hz to 10 Hz, 2.5 V reference 4.5 µV rms Voltage Noise Density eN, 1 kHz, 2.5 V reference 215 nV/√Hz Turn-On Settling Time 100 nF REFOUT capacitor 200 µs Short-Circuit Current, ISC 25 mA EXTERNAL REFERENCE INPUTS Differential Input Range VREF = (REF+) − (REF−) 1 2.5 AVDD1 V Absolute Voltage Limits1 Input Buffers Disabled AVSS − 0.05 AVDD1 + 0.05 V Input Buffers Enabled AVSS AVDD1 V REF+/REF− Input Current Input Buffers Disabled Input Current ±72 µA/V Input Current Drift External clock ±1.2 nA/V/°C Internal clock ±6 nA/V/°C Input Buffers Enabled Input Current ±800 nA Input Current Drift 1.25 nA/°C Normal Mode Rejection1 See the Rejection parameter Common-Mode Rejection 95 dB TEMPERATURE SENSOR Accuracy After user calibration at 25°C ±2 °C Sensitivity 470 µV/K BURNOUT CURRENTS Source/Sink Current Analog input buffers must be enabled ±10 µA GENERAL-PURPOSE I/O (GPIO0, GPIO1) With respect to AVSS Input Mode Leakage Current1 −10 +10 µA Floating State Output Capacitance 5 pF Output High Voltage, VOH1 ISOURCE = 200 µA AVSS + 4 V Output Low Voltage, VOL1 ISINK = 800 µA AVSS + 0.4 V Input High Voltage, VIH1 AVSS + 3 V Input Low Voltage, VIL1 AVSS + 0.7 V CLOCK Internal Clock Frequency 16 MHz Accuracy −2.5% +2.5% % Duty Cycle 50 % Output Low Voltage, VOL 0.4 V Output High Voltage, VOH 0.8 × IOVDD V Crystal Frequency 14 16 16.384 MHz Start-Up Time 10 µs External Clock (CLKIO) 16 16.384 MHz Duty Cycle1 30 50 70 % |
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