LM95221 datasheet(2/16 Pages) NSC

2 / 16 page

Connection Diagram

MSOP-8

20094302

TOP VIEW

Ordering Information

Part Number

Package

Marking

NS Package

Number

Transport

Media

SMBus Device

Address

LM95221CIMM

MUA08A (MSOP-8)

1000 Units on Tape

and Reel

010 1011

LM95221CIMMX

LM95221CIMM

MUA08A (MSOP-8)

3500 Units on Tape

and Reel

010 1011

Pin Descriptions

Label

Pin #

Function

Typical Connection

D1+

Diode Current Source

To Diode Anode. Connected to remote discrete

diode-connected transistor junction or to the

diode-connected transistor junction on a remote IC

whose die temperature is being sensed. A 2.2 nF

diode bypass capacitor is recommended to filter high

frequency noise. Place the 2.2 nF capacitor between

and as close as possible to the LM95221’s D+ and

D− pins. Make sure the traces to the 2.2 nF

capacitor are matched. Ground this pin if this

thermal diode is not used.

D1−

Diode Return Current Sink

To Diode Cathode. A 2.2 nF capacitor is

recommended between D1+ and D1-. Ground this

pin if this thermal diode is not used.

D2+

Diode Current Source

To Diode Anode. Connected to remote discrete

diode-connected transistor junction or to the

diode-connected transistor junction on a remote IC

whose die temperature is being sensed. A 2.2 nF

diode bypass capacitor is recommended to filter high

frequency noise. Place the 2.2 nF capacitor between

and as close as possible to the LM95221’s D+ and

D− pins. Make sure the traces to the 2.2 nF

capacitor are matched. Ground this pin if this

thermal diode is not used.

D2−

Diode Return Current Sink

To Diode Cathode. A 2.2 nF capacitor is

recommended between D2+ and D2-. Ground this

pin if this thermal diode is not used.

GND

Power Supply Ground

Ground

Positive Supply Voltage

Input

DC Voltage from 3.0 V to 3.6 V. V

DD should be

bypassed with a 0.1 µF capacitor in parallel with 100

pF. The 100 pF capacitor should be placed as close

as possible to the power supply pin. Noise should

be kept below 200 mVp-p, a 10 µF capacitor may be

required to achieve this.

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