Datasheet ADT7422 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | ±0.10°C Accuracy, 16-Bit, Digital I2C Temperature Sensor for VSM Applications |
| Pages / Page | 23 / 4 — ADT7422. Data Sheet. I2C TIMING SPECIFICATIONS. Table 2. Parameter … |
| File Format / Size | PDF / 378 Kb |
| Document Language | English |
ADT7422. Data Sheet. I2C TIMING SPECIFICATIONS. Table 2. Parameter Symbol. Min. Typ. Max. Unit. Test. Conditions/Comments. Timing Diagram
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ADT7422 Data Sheet I2C TIMING SPECIFICATIONS
TA = −40°C to +125°C, VDD = 2.7 V to 3.3 V, unless otherwise noted. All input signals are specified with rise time (tR) = fall time (tF) = 5 ns (10% to 90% of VDD) and timed from a voltage level of 1.6 V.
Table 2. Parameter Symbol Min Typ Max Unit Test Conditions/Comments
SERIAL INTERFACE See Figure 2. Sample tested during development to ensure compliance. SCL Frequency 0 400 kHz SCL High Pulse Width tHIGH 0.6 μs SCL Low Pulse Width tLOW 1.3 μs SCL and SDA Rise Time tR 0.3 μs SCL and SDA Fall Time tF 0.3 μs Hold Time (Start Condition) tHD:STA 0.6 μs After this period, the first clock is generated. Setup Time (Start Condition) tSU:STA 0.6 μs Relevant for repeated start condition. Data Setup Time tSU:DAT 0.02 μs Setup Time (Stop Condition) tSU:STO 0.6 μs Data Hold Time (Master) tHD:DAT 0.03 μs Bus Free Time (Between Stop and Start Condition) tBUF 1.3 μs Capacitive Load for Each Bus Line CB 400 pF
Timing Diagram t t R tF LOW tHD:STA SCL tHIGH t t t SU:STA SU:STO HD:STA tHD:DAT tSU:DAT SDA
002 1-
tBUF
2096 Figure 2. Serial Interface Timing Diagram Rev. 0 | Page 4 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS I2C TIMING SPECIFICATIONS Timing Diagram ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER DETAILS NORMAL 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 ADDRESS POINTER REGISTER TEMPERATURE VALUE REGISTERS STATUS REGISTER CONFIGURATION REGISTER THIGH SETPOINT REGISTERS TLOW SETPOINT REGISTERS TCRIT SETPOINT REGISTERS THYST SETPOINT REGISTER ID REGISTER SERIAL INTERFACE SERIAL BUS ADDRESS WRITING DATA READING DATA RESET GENERAL CALL INT AND CT OUTPUTS UNDERTEMPERATURE AND OVERTEMPERATURE DETECTION Comparator Mode Interrupt Mode APPLICATIONS INFORMATION THERMAL RESPONSE TIME SUPPLY DECOUPLING POWERING FROM A SWITCHING REGULATOR TEMPERATURE MEASUREMENT QUICK GUIDE TO MEASURING TEMPERATURE OUTLINE DIMENSIONS ORDERING GUIDE
ADT7422 Data Sheet I2C TIMING SPECIFICATIONS
TA = −40°C to +125°C, VDD = 2.7 V to 3.3 V, unless otherwise noted. All input signals are specified with rise time (tR) = fall time (tF) = 5 ns (10% to 90% of VDD) and timed from a voltage level of 1.6 V.
Table 2. Parameter Symbol Min Typ Max Unit Test Conditions/Comments
SERIAL INTERFACE See Figure 2. Sample tested during development to ensure compliance. SCL Frequency 0 400 kHz SCL High Pulse Width tHIGH 0.6 μs SCL Low Pulse Width tLOW 1.3 μs SCL and SDA Rise Time tR 0.3 μs SCL and SDA Fall Time tF 0.3 μs Hold Time (Start Condition) tHD:STA 0.6 μs After this period, the first clock is generated. Setup Time (Start Condition) tSU:STA 0.6 μs Relevant for repeated start condition. Data Setup Time tSU:DAT 0.02 μs Setup Time (Stop Condition) tSU:STO 0.6 μs Data Hold Time (Master) tHD:DAT 0.03 μs Bus Free Time (Between Stop and Start Condition) tBUF 1.3 μs Capacitive Load for Each Bus Line CB 400 pF
Timing Diagram t t R tF LOW tHD:STA SCL tHIGH t t t SU:STA SU:STO HD:STA tHD:DAT tSU:DAT SDA
002 1-
tBUF
2096 Figure 2. Serial Interface Timing Diagram Rev. 0 | Page 4 of 23 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS I2C TIMING SPECIFICATIONS Timing Diagram ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER DETAILS NORMAL 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 ADDRESS POINTER REGISTER TEMPERATURE VALUE REGISTERS STATUS REGISTER CONFIGURATION REGISTER THIGH SETPOINT REGISTERS TLOW SETPOINT REGISTERS TCRIT SETPOINT REGISTERS THYST SETPOINT REGISTER ID REGISTER SERIAL INTERFACE SERIAL BUS ADDRESS WRITING DATA READING DATA RESET GENERAL CALL INT AND CT OUTPUTS UNDERTEMPERATURE AND OVERTEMPERATURE DETECTION Comparator Mode Interrupt Mode APPLICATIONS INFORMATION THERMAL RESPONSE TIME SUPPLY DECOUPLING POWERING FROM A SWITCHING REGULATOR TEMPERATURE MEASUREMENT QUICK GUIDE TO MEASURING TEMPERATURE OUTLINE DIMENSIONS ORDERING GUIDE
