link to page 9 AD7476/AD7477/AD7478ABSOLUTE MAXIMUM RATINGS TA = 25°C, unless otherwise noted. Table 5. Stresses above those listed under Absolute Maximum Ratings Parameter Rating may cause permanent damage to the device. This is a stress V rating only; functional operation of the device at these or any DD to GND −0.3 V to +7 V Analog Input Voltage to GND −0.3 V to V other conditions above those indicated in the operational DD + 0.3 V Digital Input Voltage to GND −0.3 V to +7 V section of this specification is not implied. Exposure to absolute Digital Output Voltage to GND −0.3 V to V maximum rating conditions for extended periods may affect DD + 0.3 V Input Current to Any Pin Except Supplies1 ±10 mA device reliability. Operating Temperature Range Commercial Range (A, B Versions) –40°C to +85°C Military Range (S Version) −55°C to +125°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C SOT-23 Package θJA Thermal Impedance 230°C/W θJC Thermal Impedance 92°C/W Lead Temperature, Soldering Reflow (10 sec to 30 sec) 235 (0/+5)°C Pb-free Temperature Soldering Reflow 255 (0/+5)°C ESD 3.5 kV 1Transient currents of up to 100 mA do not cause SCR latch-up. ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. F | Page 9 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AD7476 SPECIFICATIONS AD7477 SPECIFICATIONS AD7478 SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM Analog Input Digital Input MODES OF OPERATION Normal Mode Power-Down Mode Power-Up Time POWER VS. THROUGHPUT RATE SERIAL INTERFACE MICROPROCESSOR INTERFACING AD7476/AD7477/AD7478 to TMS320C5x/C54x Interface AD7476/AD7477/AD7478 to ADSP-21xx Interface AD7476/AD7477/AD7478 to DSP56xxx Interface AD7476/AD7477/AD7478 to MC68HC16 Interface OUTLINE DIMENSIONS ORDERING GUIDE
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