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AD7170BCPZ-REEL7 Datenblatt(PDF) 3 Page - Analog Devices |
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AD7170BCPZ-REEL7 Datenblatt(HTML) 3 Page - Analog Devices |
3 / 16 page AD7170 Rev. 0 | Page 3 of 16 SPECIFICATIONS VDD = 2.7 V to 5.25 V, VREF = VDD, GND = 0 V, all specifications TMIN to TMAX, unless otherwise noted. Table 1. Parameter AD7170B1 Unit Test Conditions/Comments Min Typ Max ADC CHANNEL Output Data Rate (fADC) 125 Hz Settling time = 3/fADC No Missing Codes2 12 Bits Noise Free Resolution 12 Bits VINx = 0 V, VREF = VDD Resolution Peak-to-Peak (p-p) 12 Bits VINx = 0 V, VREF = VDD Effective Resolution (ENOB) 12 Bits VINx = 0 V, VREF = VDD RMS Noise See Table 6 μV VINx = 0 V, VREF = VDD Integral Nonlinearity ±0.1 LSB Offset Error ±200 μV Offset Error Drift vs. Temperature ±250 nV/°C Full-Scale Error ±0.015 % of FS Gain Drift vs. Temperature ±0.07 LSB/°C Power Supply Rejection 85 dB VINx = 1 V ANALOG INPUTS Differential Input Voltage Range ±VREF V VREF = REFIN(+) − REFIN(−) Absolute AINx Voltage Limits2 GND − 0.03 VDD + 0.03 V Average Input Current2 ±400 nA/V Input current varies with input voltage Average Input Current Drift ±60 pA/V/°C DC Common-Mode Rejection 90 dB VINx = 1 V REFERENCE External REFIN Voltage VDD V REFIN = REFIN(+) − REFIN(−) Reference Voltage Range2 0.5 VDD V Absolute REFIN Voltage Limits2 GND − 0.03 VDD + 0.03 V Average Reference Input Current 400 nA/V Average Reference Input Current Drift ±0.15 nA/V/°C DC Common-Mode Rejection 110 dB INTERNAL CLOCK Frequency2 64 − 5% 64 + 5% kHz LOGIC INPUTS SCLK, PDRST2 Input Low Voltage, VINL 0.4 V VDD = 3 V 0.8 V VDD = 5 V Input High Voltage, VINH 1.8 V VDD = 3 V 2.4 V VDD = 5 V SCLK (Schmitt-Triggered Input)2 Hysteresis 100 mV VDD = 3 V 140 mV VDD = 5 V Input Currents ±2 μA VIN = VDD or GND Input Capacitance 5 pF All digital inputs |
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