AD22105
PRODUCTIONLow Voltage, Resistor Programmable Thermostatic Switch
- Part Models
- 3
- 1ku List Price
- Starting From $1.78
Overview
- 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
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
Documentation
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD22105ARZ | 8-Lead SOIC | ||
| AD22105ARZ-REEL | 8-Lead SOIC | ||
| AD22105ARZ-REEL7 | 8-Lead SOIC |
| Part Models | 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 |
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| AD22105ARZ | PRODUCTION | |
| AD22105ARZ-REEL | PRODUCTION | |
| AD22105ARZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.