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AD7796BRUZ-REEL データシート(PDF) 4 Page - Analog Devices |
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AD7796BRUZ-REEL データシート(HTML) 4 Page - Analog Devices |
4 / 24 page AD7796/AD7797 Rev. A | Page 4 of 24 Parameter AD7796B/AD7797B1 Unit Test Conditions/Comments INTERNAL/EXTERNAL CLOCK Internal Clock Frequency2 64 ± 3% kHz min/max Duty Cycle 50:50 % typ External Clock Frequency 64 kHz nom A 128 kHz clock can be used if the divide by 2 function is used (Bit CLK1 = CLK0 = 1) Duty Cycle 45:55 to 55:45 % typ Applies for external 64 kHz clock (a 128 kHz clock can have a less stringent duty cycle) LOGIC INPUTS CS2 Input Low Voltage, VINL 0.8 V max DVDD = 5 V 0.4 V max DVDD = 3 V Input High Voltage, VINH 2.0 V min DVDD = 3 V or 5 V SCLK, CLK, and DIN (Schmitt-Triggered Input)2 VT(+) 1.4/2 V min/V max DVDD = 5 V VT(–) 0.8/1.7 V min/V max DVDD = 5 V VT(+) − VT(–) 0.1/0.17 V min/V max DVDD = 5 V VT(+) 0.9/2 V min/V max DVDD = 3 V VT(–) 0.4/1.35 V min/V max DVDD = 3 V VT(+) − VT(–) 0.06/0.13 V min/V max DVDD = 3 V Input Currents ±10 μA max VIN = DVDD or GND Input Capacitance 10 pF typ All digital inputs LOGIC OUTPUTS (INCLUDING CLK) Output High Voltage, VOH2 DVDD − 0.6 V min DVDD = 3 V, ISOURCE = 100 μA 4 V min DVDD = 5 V, ISOURCE = 200 μA Output Low Voltage, VOL2 0.4 V max DVDD = 3 V, ISINK = 100 μA 0.4 V max DVDD = 5 V, ISINK = 1.6 mA (DOUT/RDY)/800 μA (CLK) Floating-State Leakage Current ±10 μA max Floating-State Output Capacitance 10 pF typ Data Output Coding Offset Binary SYSTEM CALIBRATION2 Full-Scale Calibration Limit +1.05 × FS V max Zero-Scale Calibration Limit −1.05 × FS V min Input Span 0.8 × FS V min 2.1 × FS V max POWER REQUIREMENTS7 Power Supply Voltage AVDD – GND 2.7/5.25 V min/max DVDD – GND 2.7/5.25 V min/max Power Supply Currents IDD Current 325 μA max 250 μA typ @ AVDD = 3 V, 280 μA typ @ AVDD = 5 V IDD (Power-Down Mode) 1 μA max 1 Temperature range is –40°C to +85°C. 2 Specification is not production tested, but is supported by characterization data at initial product release. 3 Following a calibration, this error is in the order of the noise for the update rate selected. 4 Recalibration at any temperature removes these errors. 5 Full-scale error applies to both positive and negative full-scale and applies at the factory calibration conditions (AVDD = 4 V, TA = 25°C). 6 FS[3:0] are the four bits used in the mode register to select the output word rate. 7 Digital inputs equal to DVDD or GND. |
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同様の説明 - AD7796BRUZ-REEL |
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