ADM1023ARQZ-R7 datasheet(3/16 Pages) ONSEMI

部品番号	ADM1023ARQZ-R7

部品情報	ACPI-Compliant, High Accuracy Microprocessor System Temperature Monitor

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PIN ASSIGNMENT

Pin No.

Mnemonic

Description

1

NC

No Connect.

2

VDD

Positive Supply, 3.0 V to 5.5 V.

3

D+

Positive Connection to Remote Temperature Sensor.

4

D−

Negative Connection to Remote Temperature Sensor.

5

NC

No Connect.

6

ADD1

Three−State Logic Input, Higher Bit of Device Address.

7

GND

Supply 0 V Connection.

8

GND

Supply 0 V Connection.

9

NC

No Connect.

10

ADD0

Three−State Logic Input, Lower Bit of Device Address.

11

ALERT

Open−Drain Logic Output Used as Interrupt or SMBus ALERT.

12

SDATA

Logic Input/Output, SMBus Serial Data. Open−drain output.

13

NC

No Connect.

14

SCLK

Logic Input, SMBus Serial Clock.

15

STBY

Logic Input Selecting Normal Operation (High) or Standby Mode (Low).

16

NC

No Connect.

ELECTRICAL CHARACTERISTICS (TA = TMIN to TMAX, VDD = 3.0 V to 3.6 V, unless otherwise noted. (Note 1)

Parameter

Test Conditions / Comments

Min

Typ

Max

Unit

Power Supply and ADC

Temperature Resolution, Local Sensor

Guaranteed no missed codes

1.0

°C

Temperature Resolution, Remote Sensor

Guaranteed no missed codes

0.125

°C

Temperature Error, Local Sensor

TA = 60°C to 100°C

TA = 0°C to 120°C

−1.5

−3.0

±0.5

±1.0

+1.5

+3.0

°C

Temperature Error, Remote Sensor

TA, TD = 60°C to 100°C (Note 2)

−1.0

+1.0

°C

TA, TD = 0°C to 120°C (Note 2)

−3.0

+3.0

°C

Relative Accuracy

TA = 60°C to 100°C

0.25

°C

Supply Voltage Range (Note 3)

3.0

3.6

V

Undervoltage Lockout Threshold

VDD input, disables ADC, rising edge

2.55

2.7

2.8

V

Undervoltage Lockout Hysteresis

25

mV

Power−On Reset Threshold

VDD, falling edge (Note 4)

0.9

1.7

2.2

V

POR Threshold Hysteresis

50

mV

Standby Supply Current

VDD = 3.3 V, no SMBus activity

SCLK at 10 kHz

1.0

4.0

5.0

mA

Average Operating Supply Current

0.25 conversions/sec rate

130

200

mA

Autoconvert Mode, Averaged Over 4 Sec

2 conversions/sec rate

225

370

mA

Conversion Time

From stop bit to conversion complete

(both channels) D+ forced to D− + 0.65 V

65

115

170

ms

Remote Sensor Source Current

High level (Note 4)

Low level (Note 4)

120

7.0

205

12

300

16

mA

D− Source Voltage

0.7

V

Address Pin Bias Current (ADD0, ADD1)

Momentary at power−on reset

50

mA

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