LM90 Datasheet (Remote Diode and Local Digital Temperature Sensor)

Part: LM90
Manufacturer: Texas Instruments (official site)
Size: 1.11 MB

LM90 Key Features

Accurately Senses Die Temperature of Remote ICs or Diode Junctions
Offset Register Allows Sensing a Variety of Thermal Diodes Accurately
On-board Local Temperature Sensing
10 Bit Plus Sign Remote Diode Temperature
Diode Fault Detection Circuitry
T_CRIT_A Output Useful for System Shutdown
ALERT Output Supports SMBus 2.0 Protocol
SMBus 2.0 patible Interface, Supports
8-pin VSSOP Package

Other LM90 Datasheets

Manufacturer	Part Number	Description
National Semiconductor	LM90	Remote Diode and Local Digital Temperature Sensor
National Semiconductor	LM9011	Electronic Ignition Interface
onsemi	LM9013G	Amplifier Transistors
onsemi	LM9013H	Amplifier Transistors
National Semiconductor	LM9022	Vacuum Fluorescent Display Filament Driver

View all LM90 datasheets →

LM90 Description

The LM90 is an 11-bit digital temperature sensor with a 2-wire System Management Bus (SMBus) serial interface. The LM90 accurately measures its own temperature as well as the temperature of an external device, such as processor thermal diode or diode connected transistor such as the 2N3904. The temperature of any ASIC can be accurately determined using the LM90 as long as a dedicated diode (semiconductor junction)...