MAX31730AUB+ by Analog Devices

3-Channel Remote Temperature Sensor


The MAX31730 temperature sensor monitors its own temperature and the temperatures of three external diode-connected transistors. The operating supply voltage is from 3.0V to 3.6V. Resistance cancellation compensates for high series resistance in circuit-board traces and the external thermal diode, while beta compensation corrects for temperature-measurement errors due to low-beta sensing transistors. All temperature channels have programmable temperature thresholds. When the measured temperature of a channel crosses the respective threshold, a status bit is set in the thermal status registers and the open-drain active-low THERM output asserts. A highest temperature register allows the master to obtain the temperature of the hottest channel. The 2-wire serial interface accepts SMBus protocols (write byte, read byte, send byte, and receive byte) for reading the temperature data and programming the temperature thresholds. Any one of eight available slave addresses can be selected using the address selection input (ADD), which can be connected to ground or connected to a grounded resistor. The MAX31730 supports 3.0V to 3.6V operation and is specified for a -40°C to +125°C operating temperature range and is available in a 10-pin µMAX® and a 12-pin, 3mm x 3mm TDFN package.

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Prices starting from US$0.94

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Features

Highest Temperature Register Simplifies and Speeds Overtemperature Notification
Accurate Temperature Measurement Helps Designers Meet Error Budgets 12-Bit, 0.0625°C Resolution ±1°C Remote Temperature-Measurement Accuracy (0°C to +100°C) -64°C to +150°C Remote Temperature-Measurement Range Resistance Cancellation for Remote Channels Compensation for Low Beta Transistors Programmable Temperature Thresholds
12-Bit, 0.0625°C Resolution
±1°C Remote Temperature-Measurement Accuracy (0°C to +100°C)
-64°C to +150°C Remote Temperature-Measurement Range
Resistance Cancellation for Remote Channels
Compensation for Low Beta Transistors
Programmable Temperature Thresholds
Integration Reduces Cost, Board Area, Power-Supply Current, and Slave Address Usage One Local and Three Remote Temperature-Sensing Channels Eight Selectable Slave Addresses
One Local and Three Remote Temperature-Sensing Channels
Eight Selectable Slave Addresses
Flexible SMBus/I2C Bus Interfaces to a Variety of Microcontrollers

Specifications

Sensor Type Remote
# Channels Three
Interface 2-Wire/I2C/SMBus
Alarm Output Overt
Functions Beta CompensationHighest Temperature RegisterMulti-Channel Temperature MonitorRemote & Local Sensor
Accuracy (±°C) 1
Parasite Pwr. No
Temp. Thresh. Programmable
Temp. Resolution (bits) 12
Oper. Temp. (°C) -40 to +125
Package/Pins TDFN-CU/12UMAX/10
BudgetaryPrice (See Notes) 0.92


MAX31730AUB+ Sensors & Transducers by Analog Devices

TEMPERATURE SENSOR 2.5DEG C UMAX-10

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Output Type Digital
Sensing Accuracy Range ± 2.5°C
Sensing Temperature Min -40°C
Sensing Temperature Max 125°C
Sensor Case Style µMAX
No. of Pins 10Pins
Supply Voltage Min 3V
Supply Voltage Max 3.6V
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

TRIPLE REMOTE TEMP SENSOR USOP | Analog Devices
TEMPERATURE SENSOR, 2.5DEG C, UMAX-10 | Farnell

Frequently Asked Questions

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Is the MAX31730AUB+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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