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AD7151BRMZ Datasheet(PDF) 3 Page - Analog Devices |
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AD7151BRMZ Datasheet(HTML) 3 Page - Analog Devices |
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3 / 28 page  AD7151 Rev. 0 | Page 3 of 28 SPECIFICATIONS VDD = 2.7 V to 3.6 V; GND = 0 V; –40°C to +85°C, single-ended capacitance mode, unless otherwise noted. Table 1. Parameter Min Typ Max Unit1 Test Conditions/Comments CAPACITIVE INPUT Conversion Input Range CIN to EXC2 3.2 4 pF 4 pF input range 1.6 2 pF 2 pF input range 0.8 1 pF 1 pF input range 0.4 0.5 pF 0.5 pF input range Resolution3 2.0 fF 4 pF input range 1.6 fF 2 pF input range 1.4 fF 1 pF input range 1.0 fF 0.5 pF input range Allowed Capacitance CIN to GND3 150 pF Allowed Resistance CIN to GND3 15 MΩ Allowed Serial Resistance3 200 kΩ Gain Error −20 +20 % Gain Deviation over Temperature3 0.5 % Gain Matching Between Ranges3 −2 +2 % Offset Error3 50 fF CIN and EXC pins disconnected Offset Deviation over Temperature3 5 fF CIN and EXC pins disconnected Integral Nonlinearity (INL)3 0.1 % Power Supply Rejection3 4 fF/V CAPDAC2 Full Range 10 12.5 pF Resolution (LSB)3 200 fF Differential Nonlinearity (DNL)3 0.25 LSB AutoDAC Increment/Decrement3 25 75 % of CIN Range EXCITATION Voltage ±VDD/2 V Frequency 15.4 16 16.3 kHz Allowed Capacitance EXC to GND3 300 pF Allowed Resistance EXC to GND3 1 MΩ LOGIC OUTPUT (OUT) Output Low Voltage (VOL) 0.4 V ISINK = −4 mA Output High Voltage (VOH) VDD – 0.6 V ISOURCE = 4 mA SERIAL INTERFACE INPUTS (SCL, SDA) Input High Voltage (VIH) 1.5 V Input Low Voltage (VIL) 0.8 V Input Leakage Current ±0.1 ±5 μA Input Pin Capacitance 6 pF OPEN-DRAIN OUTPUT (SDA) Output Low Voltage (VOL) 0.4 V ISINK = −6.0 mA Output High Leakage Current (IOH) 0.1 5 μA VOUT = VDD POWER SUPPLY MONITOR VDD Threshold Voltage 2.45 2.65 V |
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