EVAL-ADT7411EBZ Analog Devices Inc, EVAL-ADT7411EBZ Datasheet
EVAL-ADT7411EBZ
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EVAL-ADT7411EBZ Summary of contents
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FEATURES 10-bit temperature-to-digital converter 10-bit 8-channel ADC DC input bandwidth Input range 2.25 V and Temperature range: −40°C to +120°C Temperature sensor accuracy of ±0.5°C Supply range: 2 5.5 V Power-down ...
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ADT7411 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Pin Configuration............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Functional Block Diagram .............................................................. 6 Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. 7 Pin Configuration and Functional Descriptions.......................... 8 ...
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SPECIFICATIONS 5.5 V, GND = 0 V, unless otherwise noted. Temperature ranges are −40°C to +120°C. DD Table 1. 1 Parameter ADC DC ACCURACY Resolution Total Unadjusted Error (TUE) Offset Error Gain Error ADC BANDWIDTH ...
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ADT7411 1 Parameter 2 ROUND ROBIN UPDATE RATE Slow ADC @ 25°C Averaging On Averaging Off Averaging On Averaging Off Fast ADC @ 25°C Averaging On Averaging Off Averaging On Averaging Off 3 ON-CHIP REFERENCE Reference Voltage Temperature Coefficient 1, ...
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Parameter POWER REQUIREMENTS Settling Time (Normal Mode (Power-Down Mode) DD Power Dissipation 1 See the Terminology section. 2 Round robin is the continuous sequential measurement of the following channels: V AIN6, ...
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ADT7411 FUNCTIONAL BLOCK DIAGRAM ON-CHIP TEMPERATURE SENSOR D+/AIN1 7 D–/AIN2 8 AIN3 9 AIN4 14 ANALOG AIN5 2 MUX AIN6 1 AIN7 16 AIN8 SENSOR INTERNAL TEMPERATURE VALUE REGISTER EXTERNAL TEMPERATURE VALUE REGISTER LIMIT ...
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ABSOLUTE MAXIMUM RATINGS Table 2. Parameter V to GND DD Analog Input Voltage to GND Digital Input Voltage to GND Operating Temperature Range Storage Temperature Range Junction Temperature 16-Lead QSOP Power Dissipation 1 2 Thermal Impedance θ Junction-to-Ambient JA θ ...
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ADT7411 PIN CONFIGURATION AND FUNCTIONAL DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 AIN6 Analog Input. Single-ended analog input channel. Input range 2. AIN5 Analog Input. ...
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... IC’s parameter would shift during its lifetime. This is a concept that has been typically applied to both voltage references and monolithic temperature sensors. Unfortunately, ICs cannot be evaluated at room temperature (25°C) for 10 years determine this shift result, manufacturers typically perform accelerated lifetime testing of ICs by operating ICs at elevated temperatures (between 125° ...
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ADT7411 TYPICAL PERFORMANCE CHARACTERISTICS 2.00 ADC OFF 1.95 1.90 1.85 1.80 1.75 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 V (V) CC Figure 7. Supply Current vs. Supply Voltage at 25°C 0 ±100mV RIPPLE ...
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V = 3.3V DD TEMPERATURE = 25° GND 0 – –10 –15 –20 – PCB LEAKAGE RESISTANCE (MΩ) Figure 13. External Temperature Error ...
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ADT7411 140 EXTERNAL TEMPERATURE 120 100 INTERNAL TEMPERATURE TIME (s) Figure 19. Temperature Sensor Response to Thermal Shock Rev Page ...
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THEORY OF OPERATION After the power-up calibration routine, the ADT7411 goes into idle mode. In this mode, the device is not performing any measurements and is fully powered up. To begin monitoring, write to the Control Configuration 1 register (Address ...
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ADT7411 FUNCTIONAL DESCRIPTION ANALOG INPUTS Single-Ended Inputs The ADT7411 offers eight single-ended analog input channels. The analog input range is from 2. maintain the linearity specification recommended that the ...
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ADC Transfer Function The output coding of the ADT7411 analog inputs is straight binary. The designed code transitions occur midway between successive integer LSB values (that is, 1/2 LSB, 3/2 LSB). The LSB is V /1024 or Int V /1024, ...
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ADT7411 The measured results from the temperature sensors are compared with the internal and external T limits. These temperature limits are stored in on-chip registers. If the temperature limits are not masked out, any out-of-limit comparisons generate flags that are ...
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V Monitoring DD The ADT7411 also has the capability of monitoring its own power supply. The part measures the voltage on its V resolution of 10 bits. The resulting value is stored in two 8-bit registers, with the 2 LSBs ...
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ADT7411 Temperature Measurement Method Internal Temperature Measurement The ADT7411 contains an on-chip, band gap temperature sensor whose output is digitized by the on-chip ADC. The temperature data is stored in the internal temperature value register. As both positive and negative ...
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Place 0.1 μF bypass and 2200 pF input filter capacitors close to the ADT7411 the distance to the remote sensor is more than 8 inches, the use of twisted-pair cable is recommended. This works up to about ...
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ADT7411 SECOND READ MSB COMMAND REGISTER UNLOCK ASSOCIATED MSB REGISTERS Figure 30. Phase 2 of 10-Bit Read If an MSB register is read first, its corresponding LSB register is not locked out, thus leaving the user with the option of ...
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Table 9. Bit Function D0 1 when internal temperature value exceeds T Any internal temperature reading greater than the set limit causes an out-of-limit event when internal temperature value exceeds T Any internal temperature reading less than or ...
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ADT7411 AIN5 to AIN8 Registers LSBs (Read-Only) [Address = 05h] This is an 8-bit read-only register. Bit D0 to Bit D7 store the two LSBs of the analog inputs AIN5 to AIN8. The MSBs are stored in Register 0Ch to ...
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AIN6 Register MSBs (Read) [Address = 0Dh] This 8-bit read register contains the eight MSBs of the AIN6 analog input voltage word. The value in this register is combined with Bit D2 and Bit D3 of the AIN5 to AIN8 ...
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ADT7411 Table 31. Bit Function C3:C0 In single-channel mode, these bits select between V the internal temperature sensor, external temperature sensor/AIN1, AIN2 to AIN8 for conversion. The default is V 0000 = 0001 = Internal Temperature Sensor. ...
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Interrupt Mask 2 Register (Read/Write) [Address = 1Eh] This mask register is an 8-bit read/write register that can be used to mask out any interrupts that can cause the INT/ INT pin to go active. Table 36. Interrupt Mask 2 ...
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ADT7411 Internal T Limit Register (Read/Write) [Address = 26h] LOW This limit register is an 8-bit read/write register that stores the twos complement of the internal temperature lower limit that causes an interrupt and activates the INT/ INT output (if ...
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AIN2 V Limit Register (Read/Write) [Address = 2Ch] LOW This limit register is an 8-bit read/write register that stores the AIN2 input lower limit that causes an interrupt and activates the INT/ INT output (if enabled). For this to happen, ...
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ADT7411 AIN6 V Limit Register (Read/Write) [Address = 33h] HIGH This limit register is an 8-bit read/write register that stores the AIN3 input upper limit that causes an interrupt and activates the INT/ INT output (if enabled). For this to ...
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SPI Lock Status Register (Read-Only) [Address = 7Fh] Bit D0 (LSB) of this read-only register indicates whether the SPI interface is locked or not. Writing to this register causes the device to malfunction. Default value is 00h ...
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ADT7411 The peripheral whose address corresponds to the transmitted address responds by pulling the data line low during the low period before the ninth clock pulse, known as the acknowledge bit. All other devices on the bus now remain idle ...
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MIN A CS (START HIGH) 30ns MIN CS A (START LOW) Figure 33. Serial Interface—Selecting and Locking SPI Protocol 1 SCL SDA START BY MASTER FRAME 1 SERIAL BUS ADDRESS BYTE 2 Figure 34. ...
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ADT7411 The part operates in a slave mode and requires an externally applied serial clock to the SCLK input. The serial interface is designed to allow the part to be interfaced to systems that provide a serial clock that is ...
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CS 1 SCLK DIN START WRITE COMMAND CS (CONTINUED) SCLK (CONTINUED) DIN (CONTINUED) Figure 37. SPI—Writing to the Address Pointer Register Followed by a Single Byte of Data to the Selected Register CS 1 SCLK ...
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ADT7411 CS 1 SCLK DIN DOUT START READ COMMAND Figure 40. SPI—Reading Two Bytes of Data from Two Sequential Registers CS SPI READ OPERATION The INT/ INT output can operate as an SMBALERT function. ...
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... ADT7411ARQ-REEL −40°C to +120°C ADT7411ARQ-REEL7 −40°C to +120°C 1 ADT7411ARQZ −40°C to +120°C 1 ADT7411ARQZ-REEL −40°C to +120°C 1 ADT7411ARQZ-REEL7 −40°C to +120°C 1 EVAL-ADT7411EBZ Pb-free part. 0.197 0.193 0.189 16 9 0.158 0.154 0.244 0.150 1 0.236 8 ...
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ADT7411 NOTES Purchase of licensed components of Analog Devices, Inc. or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2 Patent Rights to use these components ...