LM75AD datasheet(5/18 Pages) PHILIPS

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Philips Semiconductors

Product data sheet

LM75A

Digital temperature sensor and thermal Watchdog

™

2004 Oct 05

DC ELECTRICAL CHARACTERISTICS

VCC = 2.8 V to 5.5 V, Tamb = –55 °C to +125 °C unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.1

MAX.

UNIT

TACC

Temperature accuracy

Tamb = –25 °C to +100 °C

–2

–

°C

Tamb = –55 °C to +125 °C

–3

–

°C

TRES

Temperature resolution

11-bit digital temp data

–

0.125

–

°C

TCON

Temperature conversion

Normal mode

–

100

–

IDD

Supply quiescent current

Normal mode: I2C inactive

–

100

–

µA

Normal mode: I2C active

–

1.0

Shut–down mode

–

3.5

–

µA

VIH

HIGH-level input voltage

Digital pins (SCL, SDA, A2–A0)

0.7

× VCC

–

VCC + 0.3

VIL

LOW-level input voltage

Digital pins

–0.3

–

0.3

× VCC

VIHYS

Input voltage hysteresis

SCL and SDA pins

–

300

–

A2–A0 pins

–

150

–

IIH

HIGH–level input current

Digital pins; VIN = VCC

–1.0

–

1.0

µA

IIL

LOW-level input current

Digital pins; VIN = 0 V

–1.0

–

1.0

µA

VOL

LOW-level output voltage

SDA and OS pins; IOL = 3 mA

–

0.4

IOL = 4 mA

–

0.8

ILO

Output leakage current

SDA and OS pins; VOH = VCC

–

µA

OSQ

OS fault queue

Programmable

–

Conv 2

Tos

Overtemp shutdown

Default value

–

°C

Thyst

Hysteresis

Default value

–

°C

CIN

Input capacitance

Digital pins

–

NOTE:

1. Typical values are at VCC = 3.3 V and Tamb = 25 °C.

2. Conv: device A-to-D conversion.

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