Specification	LM95221CIMM/NOPB

Accuracy - Highest (Lowest)	3 °C
Features	Standby Mode, Programmable Resolution, One-Shot, Shutdown Mode
Mounting Type	Surface Mount
Operating Temperature [Max]	115 °C
Operating Temperature [Min]	0 °C
Output Type	SMBus
Package / Case	8-MSOP, 8-TSSOP
Package / Case	3 mm
Package / Case [custom]	0.118 in
Resolution	10 b, 9 b
Sensing Temperature - Local [Max]	85 °C
Sensing Temperature - Local [Min]	0 °C
Sensing Temperature - Remote [Max]	85 °C
Sensing Temperature - Remote [Min]	0 °C
Test Condition [Max]	85 °C
Test Condition [Min]	0 °C
Voltage - Supply [Max]	3.6 V
Voltage - Supply [Min]	3 V

LM95221 Series

±3°C dual remote & local temperature sensor with beta compensation and SMBus, I2C

Part	Output Type	Sensing Temperature - Local [Max]	Mounting Type	Resolution	Accuracy - Highest (Lowest)	Sensing Temperature - Remote [Max]	Package / Case	Package / Case [custom]	Package / Case	Test Condition [Max]	Operating Temperature [Max]	Features	Voltage - Supply [Max]	Voltage - Supply [Min]
Texas Instruments LM95221CIMMX/NOPB	SMBus	85 °C	Surface Mount	9 b 10 b	3 °C	85 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	85 °C	115 °C	One-Shot Programmable Resolution Shutdown Mode Standby Mode	3.6 V	3 V
Texas Instruments LM95221CIMMX	SMBus	85 °C	Surface Mount	9 b 10 b	3 °C	85 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	85 °C	115 °C	One-Shot Programmable Resolution Shutdown Mode Standby Mode	3.6 V	3 V
Texas Instruments LM95221CIMM/NOPB	SMBus	85 °C	Surface Mount	9 b 10 b	3 °C	85 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	85 °C	115 °C	One-Shot Programmable Resolution Shutdown Mode Standby Mode	3.6 V	3 V
Texas Instruments LM95221CIMM	SMBus	85 °C	Surface Mount	9 b 10 b	3 °C	85 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	85 °C	115 °C	One-Shot Programmable Resolution Shutdown Mode Standby Mode	3.6 V	3 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.87
		10	$ 2.90
		25	$ 2.58
		50	$ 2.45
		100	$ 2.38
		500	$ 2.00
	Digi-Reel®	1	$ 3.87
		10	$ 2.90
		25	$ 2.58
		50	$ 2.45
		100	$ 2.38
		500	$ 2.00
Texas Instruments	SMALL T&R	1	$ 2.86
		100	$ 2.36
		250	$ 1.70
		1000	$ 1.28

Description

General part information

LM95221 Series

The LM95221 is a dual remote diode temperature sensor in an 8-lead VSSOP package. The 2-wire serial interface of the LM95221 is compatible with SMBus 2.0. The LM95221 can sense three temperature zones, it can measure the temperature of its own die as well as two diode connected transistors. The diode connected transistors can be a thermal diode as found in Pentium and AMD processors or can simply be a diode connected MMBT3904 transistor. The LM95221 resolution format for remote temperature readings can be programmed to be 10-bits plus sign or 11-bits unsigned. In the unsigned mode the LM95221 remote diode readings can resolve temperatures above 127°C. Local temperature readings have a resolution of 9-bits plus sign.

The temperature of any ASIC can be accurately determined using the LM95221 as long as a dedicated diode (semiconductor junction) is available on the target die. The LM95221 remote sensor accuracy of ±1°C is factory trimmed for a series resistance of 2.7 ohms and 1.008 non-ideality factor.

Documents

Technical documentation and resources

LM95221 Dual Remote Diode Digital Temperature Sensor with SMBus Interface datasheet (Rev. B)

Data sheet