Temperature Sensors | ADT7461A

Temperature Sensor with Series Resistance Cancellation

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Overview

The ADT7461A is a dual-channel digital thermometer and undertemperature/overtemperature alarm, intended for use in PCs and thermal management systems. It is pin- and register-compatible with the ADM1032 and the ADT7461. A feature of the ADT7461A is series resistance cancellation, where up to 1.5 kΩ (typical) of resistance in series with the temperature monitoring diode can be automatically cancelled from the temperature result, allowing noise filtering.

  • Thermal Management
  • Notebook and Desktop Computers
  • Game Consoles
  • RFID Readers
  • Graphics Cards
  • LCD TVs
  • Dishwashers
  • On-chip and remote temperature sensor
  • 0.25°C resolution/1°C accuracy on remote channel
  • 1°C resolution/1°C accuracy on local channel
  • Automatically cancels up to 1.5 kΩ (typical) of resistance in series with remote diode to allow noise filtering
  • Extended, switchable temperature measurement range 0°C to +127°C (default) or 64°C to +191°C
  • Pin- and register-compatible with ADM1032 and ADT7461
  • 2-wire SMBus serial interface with SMBus alert support
  • Programmable over/undertemperature limits
  • Offset registers for system calibration
  • Up to two overtemperature fail-safe THERM outputs
  • 240 µA operating current, 5 µA standby current
  • DSL Line Cards

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Product

Status

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Sensor Type

Data Transmission Standard

ICC Max (mA)

VCC Min (V)

VCC Max (V)

T Min (°C)

T Max (°C)

Temperature Error (°C)

Pricing ($/Unit)

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ADT7461AARMZ-R

Active

Pb

A

H

P

Micro8

846A-02

1

260

REEL

3000

N

Local & Remote

SMBus

0.35

3

3.6

-40

125

±1

$3.3504

More Details

ADT7461AARMZ2RL7

Obsolete

Pb

A

H

P

Micro8

846A-02

1

260

REEL

1000

N

Local & Remote

SMBus

0.35

3

3.6

-40

125

±1

Price N/A

More Details

ADT7461AARMZ

Obsolete

Pb

A

H

P

Micro8

846A-02

1

260

TUBE

50

N

Local & Remote

SMBus

0.35

3

3.6

-40

125

±1

Price N/A

More Details

ADT7461AARMZ-RL7

Obsolete

Pb

A

H

P

Micro8

846A-02

1

260

REEL

1000

N

Local & Remote

SMBus

0.35

3

3.6

-40

125

±1

Price N/A

More Details

ADT7461AARMZ-2RL

Obsolete

Pb

A

H

P

Micro8

846A-02

1

260

REEL

3000

N

Local & Remote

SMBus

0.35

3

3.6

-40

125

±1

Price N/A

More Details

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