ADT7461AARMZ-RL7

更新时间： 2024-01-31 02:49:02

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
19页	270K
描述
Â±1â Temperature Monitor with Series Resistance Cancellation

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数据手册

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ADT7461AARMZ-RL7 数据手册

ADT7461A

ELECTRICAL CHARACTERISTICS T = −40°C to +125°C, V = 3.0 V to 3.6 V, unless otherwise noted.

Parameter

Conditions

Min

Typ

Max

Unit

Power Supply

Supply Voltage, V

3.0

3.30

3.6

Average Operating Supply Current, I

0.0625 Conversions/Sec Rate (Note 1)

Standby mode

−

240

5.0

350

Undervoltage Lockout Threshold

Power−On−Reset Threshold

Temperature−To−Digital Converter

Local Sensor Accuracy

input, disables ADC, rising edge

−

2.55

−

1.0

−

2.5

0°C ≤ T ≤ +70°C

−

1.0

1.5

2.5

°C

0°C ≤ T ≤ +85°C

−40°C ≤ T ≤ +100°C

Resolution

−

1.0

−

°C

Remote Diode Sensor Accuracy

0°C ≤ T ≤ +70°C, −55°C ≤ T (Note 2) ≤ +150°C

−

1.0

1.5

2.5

0°C ≤ T ≤ +85°C, −55°C ≤ T (Note 2) ≤ +150°C

−40°C ≤ T ≤ +100°C, −55°C ≤ T (Note 2) ≤ +150°C

Resolution

−

0.25

−

°C

Remote Sensor Source Current

High level (Note 3)

Middle level (Note 3)

Low level (Note 3)

220

13.5

Conversion Time

From stop bit to conversion complete, one−shot

−

6.0

1.5

8.0

−

mode with averaging switched on

One−shot mode with averaging off (that is, conversion

rate = 16−, 32−, or 64−conversions per second)

Maximum Series Resistance Cancelled

Resistance split evenly on both the D+ and D– inputs

Open−Drain Digital Outputs (THERM, ALERT/THERM2)

Output Low Voltage, V = −6.0 mA

−

0.4

1.0

OUT

High Level Output Leakage Current, I

OUT

= V

0.1

SMBus Interface (Note 3 and 4)

Logic Input High Voltage, V SCLK, SDATA

3.0 V ≤ V ≤ 3.6 V

2.1

−

0.8

−

Logic Input Low Voltage, V SCLK, SDATA

3.0 V ≤ V ≤ 3.6 V

Hysteresis

−

500

−

kHz

SDA Output Low Voltage, V

−

0.4

+1.0

−

Logic Input Current, I , I

−1.0

−

IH IL

SMBus Input Capacitance, SCLK, SDATA

SMBus Clock Frequency

5.0

−

400

SMBus Timeout (Note 5)

User programmable

−

SCLK Falling Edge to SDATA Valid Time

Master clocking in data

−

1.0

1. See Table 5 for information on other conversion rates.

2. Guaranteed by characterization, but not production tested.

3. Guaranteed by design, but not production tested.

4. See SMBus Timing Specifications section for more information.

5. Disabled by default. Detailed procedures to enable it are in the Serial Bus Interface section of the datasheet.

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