Datasheet AD5750, AD5750-1, AD5750-2 (Analog Devices) - 3

Data Sheet AD5750/AD5750-1/AD5750-2 FUNCTIONAL BLOCK DIAGRAM DVCC GND AVDD GND COMP1 COMP2 CLEAR AD5750/AD5750-1/AD5750-2 CLRSEL VSENSE+ SCLK/OUTEN * INPUT SHIFT SDIN/R0 * REGISTER VOUT RANGE AND VOUT SYNC/RSET * SCALING CONTROL SDO/VFAULT * LOGIC VOUT SHORT FAULT HW SELECT STATUS VSENSE– REGISTER VIN R2 V R3 DD VREF RESET IOUT RANGE REXT1 SCALING REXT2 RSET IOUT Vx** OVERTEMP VSS FAULT/ TEMP * VOUT SHORT FAULT IOUT OPEN FAULT NC/IFAULT * POWER- IOUT ON RESET OPEN FAULT AD2/R1 * AD1/R2 * AD0/R3 * AVSS * DENOTES SHARED PIN. SOFTWARE MODE DENOTED BY REGULAR TEXT, HARDWARE MODE DENOTED BY ITALIC TEXT. FOR EXAMPLE, FOR FAULT/ TEMP PIN, IN SOFTWARE MODE, THIS PIN TAKES ON FAULT FUNCTION. IN HARDWARE MODE, THIS PIN TAKES ON TEMP FUNCTION.
001
** Vx IS AN INTERNAL BIAS VOLTAGE (CAN BE GROUND OR OTHER VOLTAGE) THAT IS USED TO GENERATE THE INTERNAL SENSE CURRENTS NEEDED FOR THE CURRENT OUTPUTS.
07268- Figure 1. Rev. F | Page 3 of 36 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 AD5750/AD5750-1/AD5750-2 Default Registers at Power-On Reset Function OUTEN Software Control Input Shift Register Status Bit Read 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) External Current Setting Resistor Programmable Overrange Modes Packet Error Checking Applications Information Transient Voltage Protection Thermal Considerations Layout Guidelines Galvanically Isolated Interface Microprocessor Interfacing Outline Dimensions Ordering Guide