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AD7173-8 Arkusz danych(PDF) 4 Page - Analog Devices |
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AD7173-8 Arkusz danych(HTML) 4 Page - Analog Devices |
4 / 64 page AD7173-8 Data Sheet Parameter Test Conditions/Comments Min Typ Max Unit Power Supply Rejection (Line Regulation) AVDD1 and AVDD2 90 dB Load Regulation ∆VOUT/∆IL 140 ppm/mA Voltage Noise eN, 0.1 Hz to 10 Hz 6.5 µV rms Voltage Noise Density eN, 1 kHz 215 nV/√Hz Turn-On Settling Time 100 nF capacitor 60 µs Long-Term Stability3 1000 hours 460 ppm Short Circuit ISC 25 mA EXTERNAL REFERENCE Reference Input Voltage Reference input = (REF+) − (REF−) 1 2.5 AVDD1 V Absolute Reference Input Voltage Limits1 Buffers Disabled AVSS − 0.05 AVDD1 + 0.05 V Buffers Enabled AVSS AVDD1 V Average Reference Input Current Buffers Disabled ±9 µA/V Buffers Enabled ±50 nA Average Reference Input Current Drift Buffers disabled External clock ±5 nA/V/°C Internal clock ±6 nA/V/°C Normal Mode Rejection1 See the Rejection parameter Common-Mode Rejection 83 dB TEMPERATURE SENSOR Accuracy After user calibration at 25°C ±2 °C Sensitivity 477 µV/°C BURNOUT CURRENTS Source/Sink Current Analog input buffers must be enabled ±10 µA BRIDGE POWER-DOWN SWITCH RON 24 Ω Allowable Currents 16 mA GENERAL-PURPOSE I/O (GPIO0, GPIO1, GPO2, GPO3) With respect to AVSS Input Mode Leakage Current1 −10 +10 µA Floating State Output Capacitance 5 pF AVDD1 − AVSS = 5 V 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 AVDD1 − AVSS = 3.3 V Output High Voltage, VOH1 ISOURCE = 200 µA AVSS + 2.7 V Output Low Voltage, VOL1 ISINK = 800 µA AVSS + 0.27 V Input High Voltage, VIH1 AVSS + 2 V Input Low Voltage, VIL1 AVSS + 0.45 V CLOCK Internal Clock Frequency 2 MHz Accuracy −2.5 +2.5 % Duty Cycle 50:50 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) 2 2.048 MHz Duty Cycle1 Typical duty cycle 50:50 (maximum:minimum) 30:70 50:50 70:30 Rev. 0 | Page 4 of 64 |
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