Datasheet AD7298-1 (Analog Devices) - 9

AD7298-1 Pin No. Mnemonic Description
16 V Logic Power Supply Input. The voltage supplied at this pin determines the voltage at which the interface DRIVE operates. This pin should be decoupled to ground. The voltage range on this pin is 1.65 V to 3.6 V and may be less than the voltage at V but should never exceed it by more than 0.3 V. DD 17 PD/RST Power-Down Pin. This pin places the part into ful power-down mode and enables power conservation when operation is not required. This pin can be used to reset the device by toggling the pin low for a minimum of 1 ns and a maximum of 100 ns. If the maximum time is exceeded, the part enters power-down mode. When placing the AD7298-1 into full power-down mode, the analog inputs must return to 0 V. EPAD The exposed metal paddle on the bottom of the LFCSP package should be soldered to PCB ground for proper functionality and heat dissipation. Rev. A | Page 8 of 24 Document Outline Features Functional Block Diagram General Description Product Highlights Revision History Specifications Timing Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Description Typical Performance Characteristics Terminology Circuit Information Converter Operation Analog Input ADC Transfer Function VDRIVE The Internal or External Reference Control Register Modes of Operation Traditional Multichannel Mode of Operation Repeat Operation Power-Down Modes Normal Mode Partial Power-Down Mode Full Power-Down Mode Powering Up the AD7298-1 Reset Serial Interface Layout and Configuration Outline Dimensions Ordering Guide