LM75AD ,Temperature Sensor IC - NXP

The pictures are for reference only, and the specific specifications can be found in the product manual.

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117 points

Part No

LM75AD
Manufacturer

NXP
ChipWorker Part#

CW37832185
Category

Temperature Sensor IC
Package

SOT-96-8
Description

Switch/Digital Output Temperature Sensor, DIGITAL TEMP SENSOR-SERIAL, 11Bit(s), 3Cel, RECTANGULAR, SURFACE MOUNT, 3.9MM, MS-012, PLASTIC, SO-8
Documentation

Datasheet
Ships from

Moscow
Наличие

In Stock
Estimated Price

$ 0.26

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LM75AD Specifications

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Attribute	Attribute Value

Part Number	LM75AD
Manufacturer	NXP
ChipWorker Part#	CW37832185
Category	Temperature Sensor IC
Documentation	Datasheet
Case/Package	SOT-96-8
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-55 ℃
	expand all
Product Lifecycle Status	Unknown
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

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Product Description

Overview
The LM75A is a temperature-to-digital converter using an on-chip band gap temperature sensor and Sigma-delta A-to-D conversion technique. The device is also a thermal detector providing an overtemperature detection output. The LM75A contains a number of data registers: Configuration register (Conf) to store the device settings such as device operation mode, OS operation mode, OS polarity and OS fault queue as described in _Section 7 "Functional description"_; temperature register (Temp) to store the digital temp reading, and set-point registers (Tos and Thyst) to store programmable overtemperature shutdown and hysteresis limits, that can be communicated by a controller via the 2-wire serial I²C-bus interface. The device also includes an open-drain output (OS) which becomes active when the temperature exceeds the programmed limits. There are three selectable logic address pins so that eight devices can be connected on the same bus without address conflict.
The LM75A can be configured for different operation conditions. It can be set in normal mode to periodically monitor the ambient temperature, or in shutdown mode to minimize power consumption. The OS output operates in either of two selectable modes: OS comparator mode or OS interrupt mode. Its active state can be selected as either HIGH or LOW. The fault queue that defines the number of consecutive faults in order to activate the OS output is programmable as well as the set-point limits.
The temperature register always stores an 11-bit 2"s complement data giving a temperature resolution of 0.125 Cel. This high temperature resolution is particularly useful in applications of measuring precisely the thermal drift or runaway.
The device is powered-up in normal operation mode with the OS in comparator mode, temperature threshold of 80 Cel and hysteresis of 75 Cel, so that it can be used as a stand-alone thermostat with those pre-defined temperature set points.
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## Features
* Pin-for-pin replacement for industry standard LM75 and offers improved temperature resolution of 0.125 Cel and specification of a single part over power supply range from 2.8 V to 5.5 V
* Small 8-pin package types: SO8 and TSSOP8
* I²C-bus interface with up to 8 devices on the same bus
* Power supply range from 2.8 V to 5.5 V
* Temperatures range from -55 Cel to +125 Cel
* 11-bit ADC that offers a temperature resolution of 0.125 Cel
* Temperature accuracy of:
* +-2 Cel from -25 Cel to +100 Cel
* +-3 Cel from -55 Cel to +125 Cel
* Programmable temperature threshold and hysteresis set points
* Supply current of 3.5 uA in shutdown mode for power conservation
* Stand-alone operation as thermostat at power-up
* ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
* Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
## Target Applications
* System thermal management
* Personal computers
* Electronics equipment
* Industrial controllers
## Features

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