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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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AD7152 Arkusz danych(PDF) 3 Page - Analog Devices |
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AD7152 Arkusz danych(HTML) 3 Page - Analog Devices |
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3 / 24 page  AD7152/AD7153 Rev. 0 | Page 3 of 24 SPECIFICATIONS VDD = 2.7 V to 3.6 V; GND = 0 V; −40°C to +85°C, unless otherwise noted. Table 1. Parameter Min Typ Max Unit1 Test Conditions/Comments CAPACITIVE INPUT Capacitive Input Ranges ±2 pF Differential mode ±1 pF ±0.5 pF ±0.25 pF 4 pF Single-ended mode 2 pF 1 pF 0.5 pF Gain Matching Between Ranges ±3 % of FS Integral Nonlinearity (INL)2 ±0.05 % of FS No Missing Codes2 12 Bits Resolution, p-p2, 3 10 Bits 25°C, VDD = 3.3 V, 4 pF range Resolution Effective2, 3 12 Bits 25°C, VDD = 3.3 V, 4 pF range Absolute Error4 ±20 fF 25°C, VDD = 3.3 V, after system offset calibration, ±2 pF range System Offset Calibration Range5, 6 40 % of FSR Offset Deviation over Temperature2 1 5 fF Single-ended mode, CIN and EXC pins disconnected, see Figure 8 0.3 1 fF Differential mode, CIN and EXC pins disconnected Gain Error7 0.5 % of FSR 25°C, VDD = 3.3 V Gain Deviation over Temperature2 0.3 0.4 % of FSR See Figure 7 Allowed Capacitance, CIN to GND2 50 pF See Figure 9 and Figure 10 Allowed Resistance, CIN to GND2 10 MΩ See Figure 13 Allowed Serial Resistance2 20 kΩ See Figure 16 Power Supply Rejection DC 2 fF/V See Figure 17 Normal-Mode Rejection2 −70 dB 50 Hz ± 1 Hz, conversion time = 60 ms −70 dB 60 Hz ± 1 Hz, conversion time = 50 ms Channel-to-Channel Isolation2 −70 dB AD7152 only CAPDAC Full Range 5 6.25 pF Resolution8 200 fF 5-bit CAPDAC Differential Nonlinearity (DNL)2 0.25 LSB See Figure 18 and Figure 19 Offset Deviation over Temperature2 0.3 % of CAPDAC FSR Single-ended mode EXCITATION Frequency 30.9 32 32.8 kHz Voltage ±VDD/2 V Allowed Capacitance, EXC to GND2 300 pF See Figure 11 and Figure 12 SERIAL INTERFACE LOGIC INPUTS (SCL, SDA) Input High Voltage, VIH 1.5 V Input Low Voltage, VIL 0.8 V Input Leakage Current (SCL) ±0.1 ±5 μA 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 Threshold Voltage, VDD 2.45 2.65 V |
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