ADT7302ARM AD [Analog Devices], ADT7302ARM Datasheet
ADT7302ARM
Available stocks
Related parts for ADT7302ARM
ADT7302ARM Summary of contents
Page 1
Preliminary Technical Data FEATURES 13-bit temperature-to-digital converter −40°C to +125°C operating temperature range ±2°C 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 ...
Page 2
ADT7302 TABLE OF CONTENTS Specifications.....................................................................................3 Timing Characteristics.................................................................4 Absolute Maximum Ratings............................................................5 ESD Caution..................................................................................5 Pin Configurations and Function Descriptions............................6 Typical Performance Characteristics..............................................7 Circuit Information ..........................................................................8 Converter Details..........................................................................8 REVISION HISTORY Revision PrE: Preliminary Version Preliminary Technical Data Temperature Value Register ........................................................ 8 Serial ...
Page 3
Preliminary Technical Data SPECIFICATIONS 2 5.5 V, unless otherwise noted. All specifications apply for –40°C to +125°C, unless otherwise stated A MIN MAX DD Table 1. Parameter TEMPERATURE SENSOR AND ...
Page 4
ADT7302 TIMING CHARACTERISTICS Guaranteed by design and characterization, not production tested. All input signals are specified with (10 and timed from a voltage level of 1.6 V. See Figure 3. ...
Page 5
Preliminary Technical Data ABSOLUTE MAXIMUM RATINGS Table 3. ADT7302 Stress Ratings Parameter V to GND DD Digital Input Voltage to GND Digital Output Voltage to GND Operating Temperature Range Storage Temperature Range Junction Temperature 6-Lead SOT-23 (RJ-6) 1 Power Dissipation ...
Page 6
ADT7302 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS GND 1 6 DOUT ADT7302 2 5 DIN CS TOP VIEW (Not to Scale SCLK DD Figure 4. SOT-23 Table 4. Pin Function Description SOT-23 Mnemonic Pin No. Description GND 1 ...
Page 7
Preliminary Technical Data TYPICAL PERFORMANCE CHARACTERISTICS –000 –000 TBD –000 –000 –000 –000 –000 –000 ALL CAPS (Initial caps) Figure 6. Temperature Accuracy @ 3.3 V and 5 V 215.0E-6 210.0E-6 5.5 V 205.0E-6 200.0E-6 195.0E-6 190.0E-6 3.3 V 185.0E-6 ...
Page 8
ADT7302 CIRCUIT INFORMATION The ADT7302 is a 13-bit digital temperature sensor with a 14 bit that acts as a sign bit. The part houses an on-chip tempera- ture sensor, a 13-bit A/D converter, a reference circuit, and serial interface logic ...
Page 9
Preliminary Technical Data SCLK 1 DOUT LEADING ZEROS DIN SERIAL INTERFACE The serial interface on the ADT7302 consists of four wires: CS, SCLK, DIN, and DOUT. The interface can be operated in 2- wire mode with CS ...
Page 10
ADT7302 MICROPROCESSOR INTERFACING The ADT7302’ s serial interface allows for easy interface to most microcomputers and microprocessors. Figure 14 through Figure 17 show some typical interface circuits. The serial interface on the ADT7302 consists of four wires: CS, DIN, DOUT ...
Page 11
Preliminary Technical Data #include <16F873.h> #device adc=8 #use delay(clock=4000000) #fuses NOWDT,XT, PUT, NOPROTECT, BROWNOUT, LVP #BIT CKP = 0x14.4 #define CS PIN_A1 void main(){ int MSByte,LSByte; long int ADC_Temp_Code; float TempVal,ADC_Temp_Code_dec; setup_spi(spi_master); CKP = 1; do{ delay_ms(10); Output_low(CS); delay_us(10); MSByte ...
Page 12
ADT7302 ADT7302 to ADSP-21xx Interface Figure 17 shows an interface between the ADT7302 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, ...
Page 13
Preliminary Technical Data OUTLINE DIMENSIONS 0.15 MAX 2.90 BSC 2.80 BSC 1.60 BSC PIN 1 0.95 BSC 1.90 1.30 BSC 1.15 0.90 1.45 MAX 0.22 0.08 0.50 SEATING 0.30 PLANE COMPLIANT TO JEDEC STANDARDS ...
Page 14
... ADT7302ARTZ-REEL7 −40°C to +125°C 2 ADT7302ARTZ-REEL −40°C to +125°C 2 ADT7302ARMZ −40°C to +125°C 2 ADT7302ARMZ-REEL7 −40°C to +125°C 2 ADT7302ARMZ-REEL −40°C to +125°C 1 Temperature accuracy is over 0°C to 70°C temperature range Pb-free. © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners ...