TMP461 Texas instruments

TMP461

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TMP461

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Описание

The TMP461 device is a high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, microcontrollers, or field-programmable gate arrays (FPGAs). Temperature is represented as a 12-bit digital code for both local and remote sensors, giving a resolution of 0.0625°C. The two-wire serial interface accepts the SMBus communication protocol with up to nine different pin-programmable addresses. Advanced features [such as series resistance cancellation, programmable nonideality factor (η-factor), programmable offset, programmable temperature limits, and a programmable digital filter] are combined to provide a robust thermal monitoring solution with improved accuracy and noise immunity. The TMP461 is ideal for multi-location, high-accuracy temperature measurements in a variety of communication, computing, instrumentation, and industrial applications. The device is specified for operation over a supply voltage range of 1.7 V to 3.6 V, and a temperature range of –40°C to 125°C.

Remote Diode Temperature Sensor Accuracy: ±0.75°C
Local Temperature Sensor Accuracy: ±1°C
Resolution for Local and Remote Channels: 0.0625°C
Supply and Logic Voltage Range: 1.7 V to 3.6 V
35-µA Operating Current (1 SPS),
3-µA Shutdown Current
Series Resistance Cancellation
η-Factor and Offset Correction
Programmable Digital Filter
Diode Fault Detection
Two-Wire and SMBus™ Serial Interface Compatible with Pin-Programmable Address
10-Lead WQFN Package

Local sensor accuracy (max)	1
Type	Remote
Operating temperature range (°C)	-40 to 125
Supply voltage (min) (V)	1.7
Interface type	I2C, SMBus
Supply voltage (max) (V)	3.6
Features	ALERT
Supply current (max) (µA)	375
Temp resolution (max) (Bits)	12
Remote channels (#)	1
Addresses	9
Rating	Catalog