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MAX1497 Arkusz danych(PDF) 4 Page - Maxim Integrated Products |
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MAX1497 Arkusz danych(HTML) 4 Page - Maxim Integrated Products |
4 / 33 page 3.5- and 4.5-Digit, Single-Chip ADCs with LED Drivers and µC Interface 4 _______________________________________________________________________________________ PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Capacitance 10 pF Average Dynamic Input Current (Note 6) -20 +20 nA CHARGE PUMP Output Voltage VNEG CVNEG = 0.1µF -2.60 -2.42 -2.30 V DIGITAL INPUTS (SCLK, DIN, CS, CLK) Input Current IIN VIN = 0 or DVDD = VDD -10 +10 µA MAX1499 0.3 x DVDD Input Low Voltage VINL MAX1497 0.3 x VDD V MAX1499 0.7 x DVDD Input High Voltage VINH MAX1497 0.7 x VDD V Input Hysteresis VHYS DVDD = VDD = 3.0V 200 mV DIGITAL OUTPUTS (DOUT, EOC) Output Low Voltage VOL ISINK = 1mA 0.4 V ISOURCE = 200µA, MAX1499 0.8 x DVDD Output High Voltage VOH ISOURCE = 200µA, MAX1497 0.8 x VDD V Tri-State Leakage Current IL DOUT only -1 +1 µA Tri-State Output Capacitance COUT DOUT only 15 pF POWER SUPPLY (Note 10) VDD Voltage VDD MAX1497 2.70 5.25 V AVDD Voltage AVDD MAX1499 2.70 5.25 V DVDD Voltage DVDD MAX1499 2.70 5.25 V Power-Supply Rejection VDD PSRR (Note 7) 80 dB Power-Supply Rejection AVDD PSRRA (Note 7) 80 dB Power-Supply Rejection DVDD PSRRD (Note 7) 100 dB VDD = 5.25V 664 744 VDD = 3.3V 618 663 VDD Current (Notes 8, 9) IVDD Standby mode 268 325 µA AVDD = 5.25V 640 AVDD = 3.3V 600 AVDD Current (Notes 8, 9) IAVDD Standby mode 305 µA ELECTRICAL CHARACTERISTICS (continued) (AVDD = DVDD = VDD = +2.7V to +5.25V, GND = 0, GLED = 0, VLED = +2.7V to +5.25V, VREF+ - VREF- = 2.048V (external reference) CREF+ = CREF- = 0.1µF, CVNEG = 0.1µF. Internal clock mode, unless otherwise noted. All specifications are at TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.) |
Podobny numer części - MAX1497 |
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Podobny opis - MAX1497 |
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