AD22105
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AD22105

Low Voltage, Resistor Programmable Thermostatic Switch

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Part Models 3
1ku List Price Starting From $1.78
Features
  • User-programmable temperature setpoint
  • ±2.0°C maximum ambient setpoint accuracy
  • 4.1°C typical hysteresis
  • Wide supply range: 2.7 V to 7.0 V
  • Wide temperature range: −40°C to +150°C
  • Low power dissipation

Additional Details
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The AD22105 is a solid state thermostatic switch. Requiring only one external programming resistor, the AD22105 can be set to switch accurately at any temperature in the wide operating range of -40°C to +150°C. Using a novel circuit architecture, the AD22105 asserts an open collector output when the ambient temperature exceeds the user-programmed setpoint temperature. The AD22105 has approximately 4°C of hysteresis which prevents rapid thermal on/off cycling.

The AD22105 is designed to operate on a single power supply voltage from +2.7 V to +7.0 V facilitating operation in battery powered applications as well as in industrial control systems. Because of low power dissipation (230 µW @ 3.3 V), self-heating errors are minimized and battery life is maximized.

An optional internal 200 k(ohm) pull-up resistor is included to facilitate driving light loads such as CMOS inputs.

Alternatively, a low power LED indicator may be driven directly. 

APPLICATIONS

  • Industrial process control
  • Thermal control systems
  • CPU monitoring
  • Computer thermal management circuits
  • Fan control
  • Handheld/portable electronic equipment
Part Models 3
1ku List Price Starting From $1.78

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Documentation

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Product Lifecycle

PCN

Nov 9, 2011

- 11_0182

Test Site Transfer from Analog Devices Philippines Inc in Paranaque to Analog Devices General Trias in Cavite, Philippines

AD22105ARZ

PRODUCTION

AD22105ARZ-REEL

PRODUCTION

AD22105ARZ-REEL7

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Nov 9, 2011

- 11_0182

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Test Site Transfer from Analog Devices Philippines Inc in Paranaque to Analog Devices General Trias in Cavite, Philippines

AD22105ARZ

PRODUCTION

AD22105ARZ-REEL

PRODUCTION

AD22105ARZ-REEL7

PRODUCTION

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