Datasheet ADT75 (Analog Devices) - 4

ADT75 Data Sheet SPECIFICATIONS A GRADE
TA = TMIN to TMAX, VDD = 2.7 V to 5.5 V. All specifications for −55°C to +125°C, unless otherwise noted.
Table 1. Parameter Min Typ Max Unit Test Conditions/Comments
TEMPERATURE SENSOR AND ADC Accuracy at V = 2.7 V to 5.5 V ±2 °C T = −25°C to +100°C DD A ±3 °C T = −55°C to +100°C A Accuracy at V = 2.7 V to 3.6 V ±3 °C T = 100°C to 125°C DD A Accuracy at V = 4.5 V to 5.5 V ±2 °C T = 100°C to 125°C DD A ADC Resolution 12 Bits Temperature Resolution 0.0625 °C Temperature Conversion Time 60 ms Update Rate 100 ms Conversion started every 100 ms Long Term Drift 0.08 °C Drift over 10 years, if part is operated at 55°C Temperature Hysteresis 0.03 °C Temperature cycle = 25°C to 125°C to 25°C OS/ALERT OUTPUT (OPEN DRAIN) Output Low Voltage, V 0.4 V I = 3 mA OL OL Pin Capacitance 10 pF High Output Leakage Current, I 0.1 5 µA OS/ALERT pin pulled up to 5.5 V OH R Resistance (Low Output) 15 Ω Supply and temperature dependent ON DIGITAL INPUTS Input Current ±1 µA V = 0 V to V IN DD Input Low Voltage, V 0.3 × V V IL DD Input High Voltage, V 0.7 × V V IH DD SCL, SDA Glitch Rejection 50 ns Input filtering suppresses noise spikes of less than 50 ns Pin Capacitance 3 10 pF DIGITAL OUTPUT (OPEN DRAIN) Output High Current, I 1 mA V = 5 V OH OH Output Low Voltage, V 0.4 V I = 3 mA OL OL Output High Voltage, V 0.7 × V V OH DD Output Capacitance, C 3 10 pF OUT POWER REQUIREMENTS Supply Voltage 2.7 5.5 V Supply Current at 3.3 V 350 500 µA Peak current while converting and I2C interface inactive Supply Current at 5.0 V 380 525 µA Peak current while converting and I2C interface inactive Average Current at 3.3 V 200 µA Part converting and I2C interface inactive Average Current at 5.0 V 225 µA Part converting and I2C interface inactive Shutdown Mode at 3.3 V 3 8 µA Supply current in shutdown mode Shutdown Mode at 5.0 V 5.5 12 µA Supply current in shutdown mode Average Power Dissipation 798.6 µW V = 3.3 V, normal mode at 25°C DD 1 SPS 78.6 µW Average power dissipated for V = 3.3 V, DD shutdown mode at 25°C 140 µW Average power dissipated for V = 5.0 V, DD shutdown mode at 25°C Rev. B | Page 4 of 24 Document Outline Features Applications Product Highlights Functional Block Diagram Table of Contents Revision History General Description Specifications A Grade B Grade Timing Specifications and Diagram Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Circuit Information Converter Details Functional Description Temperature Data Format Temperature Conversion Formulas One-Shot Mode Fault Queue Registers Address Pointer Register Temperature Value Register Configuration Register THYST Setpoint Register TOS Setpoint Register Serial Interface Serial Bus Address Writing Data Writing to the Address Pointer Register for a Subsequent Read Writing Data to a Register Reading Data OS/Alert Output OverTemperature Modes Comparator Mode Interrupt Mode SMBus Alert Applications Information Thermal Response Time Self-Heating Effects Supply Decoupling Temperature Monitoring Outline Dimensions Ordering Guide