Datasheet ADT7310 (Analog Devices) - 10

ADT7310 Data Sheet CS DIN 0x08 0x20 WAIT 240ms MINIMUM FOR CONVERSION TO FINISH DATA DOUT SCLK
026 07789- Figure 14. Typical SPI One-Shot Write to Configuration Register Followed by a Read from the Temperature Value Register
ONE-SHOT MODE 1 SPS MODE
When one-shot mode is enabled, the ADT7310 immediately In this mode, the part performs one measurement per second. completes a conversion and then goes into shutdown mode. The A conversion takes only 60 ms, and it remains in the idle state one-shot mode is useful when one of the circuit design priorities is for the remaining 940 ms period. This mode is enabled by to reduce power consumption. writing 1 to Bit 6 and 0 to Bit 5 of the configuration register (Register Address 0x01). To enable one-shot mode, set Bits[6:5] of the configuration register (Register Address 0x01) to 01. After writing to the operation mode bits, wait at least 240 ms before reading back the temperature from the temperature value register. This delay ensures that the ADT7310 has adequate time to power up and complete a conversion. To obtain an updated temperature conversion, reset Bits[6:5] of the configuration register (Register Address 0x01) to 01. Rev. A | Page 10 of 24 Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications SPI Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Circuit Information Converter Details Temperature Measurement One-Shot Mode 1 SPS Mode CT and INT Operation in One-Shot Mode Continuous Read Mode Shutdown Fault Queue Temperature Data Format Temperature Conversion Formulas 16-Bit Temperature Data Format 13-Bit Temperature Data Format 10-Bit Temperature Data Format 9-Bit Temperature Data Format Registers Status Register Configuration Register Temperature Value Register ID Register TCRIT Setpoint Register THYST Setpoint Register THIGH Setpoint Register TLOW Setpoint Register Serial Interface SPI Command Byte Writing Data Reading Data Interfacing to DSPs or Microcontrollers Serial Interface Reset INT and CT Outputs Undertemperature and Overtemperature Detection Comparator Mode Interrupt Mode Applications Information Thermal Response Time Supply Decoupling Temperature Monitoring Outline Dimensions Ordering Guide