AD7730/AD7730LABSOLUTE MAXIMUM RATINGS* Plastic DIP Package, Power Dissipation . 450 mW (T θ A = +25°C unless otherwise noted) JA Thermal Impedance . 105°C/W Lead Temperature (Soldering, 10 sec) . +260°C AVDD to AGND . –0.3 V to +7 V TSSOP Package, Power Dissipation . 450 mW AVDD to DGND . –0.3 V to +7 V θ DV JA Thermal Impedance . 128°C/W DD to AGND . –0.3 V to +7 V Lead Temperature, Soldering DVDD to DGND . –0.3 V to +7 V Vapor Phase (60 sec) . +215°C AGND to DGND . –5 V to +0.3 V Infrared (15 sec) . +220°C AVDD to DVDD . –2 V to +5 V SOIC Package, Power Dissipation . 450 mW Analog Input Voltage to AGND . –0.3 V to AVDD + 0.3 V θ Reference Input Voltage to AGND . –0.3 V to AV JA Thermal Impedance . 75°C/W DD + 0.3 V Lead Temperature, Soldering AIN/REF IN Current (Indefinite) . 30 mA Vapor Phase (60 sec) . +215°C Digital Input Voltage to DGND . –0.3 V to DVDD + 0.3 V Infrared (15 sec) . +220°C Digital Output Voltage to DGND . –0.3 V to DVDD + 0.3 V Output Voltage (ACX, ACX, D0, D1) to DGND *Stresses above those listed under Absolute Maximum Ratings may cause . –0.3 V to AV permanent damage to the device. This is a stress rating only; functional DD + 0.3 V operation of the device at these or any other conditions above those listed in Operating Temperature Range the operational sections of this specification is not implied. Exposure to Industrial (B Version) . –40°C to +85°C absolute maximum rating conditions for extended periods may affect device Storage Temperature Range . –65°C to +150°C reliability. Junction Temperature . +150°C ISINK (800A AT DVDD = +5V 100A AT DVDD = +3V)TO OUTPUT+1.6VPIN50pFISOURCE (200A AT DVDD = +5V 100A AT DVDD = +3V) Figure 1. Load Circuit for Access Time and Bus Relinquish Time 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. WARNING! Although the AD7730 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. ESD SENSITIVE DEVICE REV. B –5–