ADT7301ARTZ-500RL7 Analog Devices Inc, ADT7301ARTZ-500RL7 Datasheet
ADT7301ARTZ-500RL7
Specifications of ADT7301ARTZ-500RL7
Related parts for ADT7301ARTZ-500RL7
ADT7301ARTZ-500RL7 Summary of contents
Page 1
FEATURES 13-bit temperature-to-digital converter −40°C to +150°C operating temperature range ±0.5°C typical accuracy 0.03125°C temperature resolution Shutdown current of 1 μA Power dissipation of 0.631 SPI- and DSP-compatible serial interface Shutdown mode Space-saving SOT-23 and MSOP ...
Page 2
ADT7301 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Timing Characteristics ................................................................ 4 Absolute Maximum Ratings ............................................................ 5 ESD ...
Page 3
SPECIFICATIONS 2 5.25 V, unless otherwise noted. All specifications are for −40°C to +150°C, unless otherwise noted. A MIN MAX DD Table 1. A Grade Specifications Parameter TEMPERATURE SENSOR AND ...
Page 4
ADT7301 TIMING CHARACTERISTICS Guaranteed by design and characterization, not production tested. All input signals are specified with t and timed from a voltage level of 1 Table 2. 1 Parameter Limit ...
Page 5
ABSOLUTE MAXIMUM RATINGS Table 3. Parameter V to GND DD Digital Input Voltage to GND Digital Output Voltage to GND 1 Operating Temperature Range Storage Temperature Range Junction Temperature 6-Lead SOT-23 (RJ-6) 2 Power Dissipation Thermal Impedance θ , Junction-to-Ambient ...
Page 6
ADT7301 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS GND 1 6 DOUT ADT7301 2 5 DIN CS TOP VIEW (Not to Scale SCLK V DD Figure 4. SOT-23 Pin Configuration Table 4. Pin Function Descriptions SOT-23 MSOP Pin No. Pin ...
Page 7
TYPICAL PERFORMANCE CHARACTERISTICS 215 210 5.5V 205 200 195 190 3.3V 185 180 175 170 – TEMPERATURE (°C) Figure 6. Average Operating Supply Current vs. Temperature 205 200 195 190 185 180 175 2.5 3.0 3.5 4.0 4.5 ...
Page 8
ADT7301 5 4 UPPER TEMPERATURE ERROR LIMIT –1 –2 –3 LOWER TEMPERATURE ERROR LIMIT –4 –5 TEMPERATURE ( ° C) Figure 11. Temperature Accuracy of 40 ADT7301s @ 3 UPPER TEMPERATURE ERROR LIMIT ...
Page 9
THEORY OF OPERATION The ADT7301 is a 13-bit digital temperature sensor with a 14 bit that acts as a sign bit. The part houses an on-chip temperature sensor, a 13-bit A/D converter, a reference circuit, and serial interface logic functions ...
Page 10
ADT7301 TEMPERATURE VALUE REGISTER The temperature value register is a 14-bit read-only register that stores the temperature reading from the ADC in 13-bit twos complement format plus a sign bit. The MSB (DB13) is the sign bit. The ADC can ...
Page 11
SCLK 1 2 LEADING ZEROS DOUT DIN SERIAL INTERFACE The serial interface on the ADT7301 consists of four wires SCLK, DIN, and DOUT. The interface can be operated in 3-wire mode with DIN tied to ...
Page 12
ADT7301 APPLICATIONS INFORMATION MICROPROCESSOR INTERFACING The ADT7301 serial interface allows easy interface to most microcomputers and microprocessors. Figure 15 to Figure 18 show some typical interface circuits. The serial interface on the ADT7301 consists of four wires DIN, ...
Page 13
The following software program shows how to program a PIC16F873 to communicate with the ADT7301. The PIC16F873 is configured as an SPI master with the Port A.1 pin used Any microchip microcontroller can use this program by ...
Page 14
ADT7301 ADT7301-to-ADSP-21xx Interface Figure 18 shows an interface between the ADT7301 and the ADSP-21xx DSP processor. To ensure correct operation of the interface, the SPORT control register should be set up as follows: TFSW = RFSW = 1, alternate framing ...
Page 15
... PIN 1 INDICATOR 1.30 1.15 0.90 0.15 MAX 0.05 MIN IDENTIFIER ORDERING GUIDE 1 Model Temperature Range ADT7301ARTZ-500RL7 −40°C to +150°C ADT7301ARTZ-REEL7 −40°C to +150°C ADT7301ARMZ −40°C to +150°C ADT7301ARMZ-REEL7 −40°C to +150°C EVAL-ADT7301EBZ RoHS Compliant Part. 2 Temperature accuracy is over a 0°C to 70°C temperature range. ...
Page 16
ADT7301 NOTES ©2005–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D02884–0–3/10(A) Rev Page ...