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AD7291BCPZ-RL7 Datasheet(PDF) 3 Page - Analog Devices |
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AD7291BCPZ-RL7 Datasheet(HTML) 3 Page - Analog Devices |
3 / 21 page Preliminary Technical Data AD7291 Rev. PrC | Page 3 of 21 Parameter Min Typ Max Unit Test Conditions/Comments LOGIC INPUTS (SDA, SCL) Input High Voltage, VINH 0.7 × VDRIVE V Input Low Voltage, VINL +0.3 x VDRIVE V Input Current, IIN ±0.01 ±1 µA VIN = 0 V or VDRIVE Input Capacitance, CIN2 3 pF Input Hysteresis, VHYST 0.1 (VDRIVE) V LOGIC OUTPUTS (OPEN DRAIN) Output Low Voltage, VOL 0.4 V ISINK = 3 mA 0.6 V ISINK = 6 mA Floating State Leakage Current ±0.01 ±1 µA Floating State Output Capacitance2 8 pF Output Coding Straight (natural) binary TEMPERATURE SENSOR—INTERNAL Operating Range −40 +125 Accuracy ±1 ±2 °C TA = −40°C to +85°C ±1 ±3 °C TA = >85°C to 125°C Resolution 0.25 °C LSB size CONVERSION RATE Conversion Time 3 μs Autocycle Update Rate TBD Throughput Rate 22.22 kSPS FSCL = 400kHz POWER REQUIREMENTS Digital inputs = 0 V or VDRIVE VDD 2.8 3 3.6 V See VDRIVE 1.65 3 3.6 V ITOTAL5 VDD = 3.3V ADC Operating, Interface Active (Fully Operational) 5 mA Full Power-Down Mode 5 60 μA Power Dissipation VDD = 3.3V ADC Operating, Interface Active (Fully Operational) 16.5 mW Full Power-Down Mode 1.65 μW 1 See the Terminology Section. 2 Sample tested during initial release to ensure compliance. 3 Refers to Pin VREF specified for 25oC. 4 VREF variations from 2.5V will alter the gain error of the temperature sensor, oC per LSB, and a correction factor may be required, See Section X. 5 ITOTAL is the total current flowing in VDD and VDRIVE. |
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