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AD7156 Folha de dados(PDF) 3 Page - Analog Devices |
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AD7156 Folha de dados(HTML) 3 Page - Analog Devices |
3 / 28 page AD7156 Rev. 0 | Page 3 of 28 SPECIFICATIONS VDD = 1.8 V to 3.6 V, GND = 0 V, temperature range = −40°C to +85°C, unless otherwise noted. Table 1. Parameter Min Typ Max Unit1 Test Conditions/Comments CAPACITIVE INPUT Conversion Input Range, CIN to EXC2, 3 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 Resolution4, 5 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 Maximum Allowed Capacitance, CIN to GND4, 6 50 pF See Figure 4, Figure 5, and Figure 6 Minimum Allowed Resistance, CIN to GND4, 6 10 MΩ See Figure 10 and Figure 11 Maximum Allowed Serial Resistance4, 6 50 kΩ See Figure 14 Gain Error −20 +20 % Gain Deviation over Temperature4 0.5 %FSR See Figure 17 Gain Matching Between Ranges4 −2 +2 % Offset Error4 50 fF CIN and EXC pins disconnected Offset Deviation over Temperature4 5 fF CIN and EXC pins disconnected See Figure 16 Integral Nonlinearity (INL)4 0.05 % Channel-to-Channel Isolation4 60 dB Power Supply Rejection4 4 fF/V CAPDAC Full Range 10 12.5 pF Resolution (LSB)4 200 fF Differential Nonlinearity (DNL)4 0.25 LSB Auto-DAC Increment/Decrement4, 7 25 75 % of CIN range EXCITATION Voltage4, 7 ±VDD/2 V Frequency 16 kHz See Figure 18 Maximum Allowed Capacitance EXC to GND4, 6 1000 pF See Figure 7, Figure 8, and Figure 9 Minimum Allowed Resistance EXC to GND4, 6 1 MΩ See Figure 12 and Figure 13 LOGIC OUTPUTS (OUT1, OUT2) Output Low Voltage (VOL) 0.4 V ISINK = −3 mA Output High Voltage (VOH) VDD – 0.6 V ISOURCE = +3 mA SERIAL INTERFACE INPUTS (SCL, SDA) Input High Voltage (VIH) 70 % of VDD Input Low Voltage (VIL) 25 % of VDD 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 |
Nº de peça semelhante - AD7156 |
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Descrição semelhante - AD7156 |
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