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MAX1145AEAP Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX1145AEAP Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 18 page 14-Bit ADCs, 150ksps, 3.3V Single Supply _______________________________________________________________________________________ 5 TIMING CHARACTERISTICS (Figures 5 and 6) (continued) (AVDD = DVDD = 3.3V ±5%, TA = TMIN to TMAX, unless otherwise noted.) Note 1: Tested at AVDD = DVDD = 3.3V, bipolar input mode. Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the gain error and offset error have been nullified. Note 3: Offset nullified. Note 4: Conversion time is defined as the number of clock cycles multiplied by the clock period; clock has 50% duty cycle. Includes the acquisition time. Note 5: Acquisition time is 5 clock cycles in short acquisition mode and 13 clock cycles in long acquisition mode. Note 6: Performance is limited by the converter’s noise floor, typically 300µVP-P. Note 7: When an external reference has a different voltage than the specified typical value, the full scale of the ADC scales propor- tionally. Note 8: Defined as the change in positive full scale caused by a ±5% variation in the nominal supply voltage. Typical Operating Characteristics (MAX1144/MAX1145, AVDD = DVDD = 3.3V, fSCLK = 3.6MHz, external clock (50% duty cycle), 24 clocks/conversion (150ksps), bipolar input, REF = 2.048V, 4.7µF on REF, 1µF on CREF, TA = +25°C, unless otherwise noted.) INTEGRAL NONLINEARITY vs. DIGITAL OUTPUT CODE DIGITAL OUTPUT CODE 13649 11943 8531 10237 3413 5119 6825 1707 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 -1.0 1 15355 DIFFERENTIAL NONLINEARITY vs. DIGITAL OUTPUT CODE DIGITAL OUTPUT CODE 13649 11943 8531 10237 3413 5119 6825 1707 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0 -1.0 1 15355 TOTAL SUPPLY CURRENT vs. TEMPERATURE TEMPERATURE ( °C) 80 60 20 40 0 -20 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 9.0 8.0 -40 A: AVDD, DVDD = 3.135V B: AVDD, DVDD = 3.3V C: AVDD, DVDD = 3.465V C B A |
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