Datasheet ADT7312 (Analog Devices) - 6

ADT7312 Data Sheet PAD CONFIGURATION AND FUNCTION DESCRIPTIONS 1950µm SCLK VDD VDD DOUT GND GND 2350µm DIN CT CS INT
004 1- 79 06 Figure 3. Metallization Picture
Table 4. Pad Function Descriptions Pad No. Pad Name Description
1 SCLK Serial Clock Input. The serial clock is used to clock data into and out of any register of the device. 2 DOUT Serial Data Output. Data is clocked out on the falling edge of SCLK and is valid on the rising edge of SCLK. 3 DIN Serial Data Input. Data to be loaded into the control registers of the part is provided on this input. Data is clocked into the registers on the rising edge of SCLK. 4 CS Chip Select Input. The device is enabled when this pin is low. The device is disabled when this pin is high. 5 INT Overtemperature and Undertemperature Indicator. Logic output. When the device is powered up, this output is an active low interrupt by default. Open-drain configuration. A pull-up resistor is required, typically 10 kΩ. 6 CT Critical Overtemperature Indicator. Logic output. The default power-on polarity is active low. Open-drain configuration. A pull-up resistor is required, typically 10 kΩ. 7 GND Analog Ground. This pad must be connected directly to Pad 8 (digital ground). 8 GND Digital Ground. This pad must be connected directly to Pad 7 (analog ground). 9 VDD Analog Supply Voltage (2.7 V to 5.5 V). This pad must be connected directly to Pad 10 (digital supply voltage). The supply should be decoupled with a 0.1 μF ceramic capacitor to GND. 10 VDD Digital Supply Voltage (2.7 V to 5.5 V). This pad must be connected directly to Pad 9 (analog supply voltage). The supply should be decoupled with a 0.1 μF ceramic capacitor to GND. Rev. A | Page 6 of 24 Document Outline Features Applications General Description Product Highlights Functional Block Diagram Table of Contents Revision History Specifications SPI Timing Specifications Absolute Maximum Ratings ESD Caution Pad Configuration and Function Descriptions Die Bond Pad Coordinates Typical Performance Characteristics Theory of Operation Circuit Description Converter Architecture Normal Mode (Continuous Conversion Mode) One-Shot Mode CT and INT Operation in One-Shot Mode 1 SPS Mode Shutdown Mode 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 Resetting the Serial Interface INT and CT Outputs Undertemperature and Overtemperature Detection Comparator Mode Interrupt Mode Redundant Critical Generator Applications Information Thermal Response Time Supply Decoupling Powering from a Switching Regulator Temperature Monitoring Quick Guide to Measuring Temperature Outline Dimensions Ordering Guide Automotive Products