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AD7533 Fiches technique(PDF) 3 Page - Intersil Corporation |
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AD7533 Fiches technique(HTML) 3 Page - Intersil Corporation |
3 / 8 page 3 Definition of Terms Nonlinearity: Error contributed by deviation of the DAC transfer function from a “best straight line” through the actual plot of transfer function. Normally expressed as a percentage of full scale range or in (sub)multiples of 1 LSB. Resolution: It is addressing the smallest distinct analog output change that a D/A converter can produce. It is commonly expressed as the number of converter bits. A converter with resolution of n bits can resolve output changes of 2-N of the full-scale range, e.g., 2-N VREF for a unipolar conversion. Resolution by no means implies linearity. Settling Time: Time required for the output of a DAC to settle to within specified error band around its final value (e.g., 1/2 LSB) for a given digital input change, i.e., all digital inputs LOW to HIGH and HIGH to LOW. Gain Error: The difference between actual and ideal analog output values at full-scale range, i.e., all digital inputs at HIGH state. It is expressed as a percentage of full scale range or in (sub)multiples of 1 LSB. Feedthrough Error: Error caused by capacitive coupling from VREF to IOUT1 with all digital inputs LOW. Output Capacitance: Capacitance from IOUT1, and IOUT2 terminals to ground. Output Leakage Current: Current which appears on IOUT1, terminal when all digital inputs are LOW or on IOUT2 terminal when all digital inputs are HIGH. For further information on the use of this device, see the following Application Notes: Detailed Description The AD7533 is a monolithic multiplying D/A converter. A highly stable thin film R-2R resistor ladder network and NMOS SPDT switches form the basis of the converter circuit, CMOS level shifters permit low power TTL/CMOS ANALOG OUTPUT Output Capacitance COUT1 All Digital Inputs High (Note 4) - 100 - 100 pF COUT2 -35-35 pF COUT1 All Digital Inputs Low (Note 4) - 35 - 35 pF COUT2 - 100 - 100 pF DIGITAL INPUTS Low State Threshold, VIL -0.8 -0.8 V High State Threshold, VIH 2.4 - 2.4 - V Input Current (Low or High), IIL, IIH VIN = 0V or + 15V - ±1- ±1 µA Input Coding See Tables 1 through 3 Binary/Offset Binary Input Capacitance (Note 4) - 4 - 4 pF POWER SUPPLY CHARACTERISTICS Power Supply Voltage Range (Note 6) +5 to +16 V I+ All Digital Inputs High or Low (Excluding Ladder Network) - 2 - 2.5 mA NOTES: 2. Full Scale Range (FSR) is 10V for unipolar and ±10V for bipolar modes. 3. Using internal feedback resistor, RFEEDBACK. 4. Guaranteed by design or characterization and not production tested. 5. Accuracy not guaranteed unless outputs at ground potential. 6. Accuracy is tested and guaranteed at V+ = +15V, only. Electrical Specifications V+ = +15V, VREF = +10V, VOUT1 = VOUT2 = 0V, Unless Otherwise Specified (Continued) PARAMETER TEST CONDITIONS TA 25 oCT A MIN-MAX UNITS MIN MAX MIN MAX Application Notes NOTE # DESCRIPTION AN002 “Principles of Data Acquisition and Conversion” AN018 “Do’s and Don’ts of Applying A/D Converters” AN042 “Interpretation of Data Conversion Accuracy Specifications” AD7533 |
Numéro de pièce similaire - AD7533 |
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Description similaire - AD7533 |
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