link to page 29 link to page 6 AD5748Data SheetParameter 1MinTypMaxUnitTest Conditions/Comments SDO Output Low Voltage, VOL 0.5 0.5 V Sinking 200 µA Output High Voltage, VOH DVCC − 0.5 DVCC − 0.5 V Sourcing 200 µA High Impedance Output 3 pF Capacitance High Impedance Leakage Current −1 +1 µA POWER REQUIREMENTS Positive Analog Supply, AVDD 12 24 V ±10% Negative Analog Supply, AVSS −12 −24 V ±10% Digital Power Supply, DVCC Input Voltage 2.7 5.5 V AIDD 4.4 5.6 mA Output unloaded, output disabled, R3, R2, R1, R0 = 0, 1, 0, 1 5.2 6.2 mA Current output enabled 5.2 6.2 mA Voltage output enabled AISS 2.0 2.5 mA Output unloaded, output disabled, R3, R2, R1, R0 = 0, 1, 0, 1 2.5 3 mA Current output enabled 2.5 3 mA Voltage output enabled DICC 0.3 1 mA VIH = DVCC, VIL = GND Power Dissipation 108 mW AVDD/AVSS = ±24 V, outputs unloaded 1 Temperature range: −40°C to +105°C; typical at +25°C. 2 Specification includes gain and offset errors over temperature, and drift after 1000 hours, TA = 125°C. 3 Guaranteed by characterization, but not production tested. 4 See the Current Setting Resistor section. Rev. B | Page 6 of 32 Document Outline Features Applications General Description Table of Contents Revision History Functional Block Diagram Specifications Timing Characteristics Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Voltage Output Current Output Terminology Theory of Operation Software Mode Current Output Architecture Driving Inductive Loads Voltage Output Amplifier Driving Large Capacitive Loads Power-On State of the AD5748 Default Registers at Power-On Reset Function OUTEN Software Control Input Shift Register Readback Operation Hardware Control Transfer Function Detailed Description of Features Output Fault Alert—Software Mode Output Fault Alert—Hardware Mode Voltage Output Short-Circuit Protection Asynchronous Clear (CLEAR) Current Setting Resistor Packet Error Checking Applications Information Transient Voltage Protection Thermal Considerations Layout Guidelines Galvanically Isolated Interface Microprocessor Interfacing Outline Dimensions Ordering Guide
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