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.
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.
Features and Benefits
| Analog to Digital ConvertersSensors |
| Document | note |
| AD22105: Single-Supply Sensor Interface Amplifier Data Sheet (Rev. 0) | PDF 262 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| AD22105AR Production | 8 ld SOIC | OTH 98 | -40 to 150C | 0 | 0 | N |
| AD22105AR-REEL Production | 8 ld SOIC | REEL 2500 | -40 to 150C | 0 | 0 | N |
| AD22105AR-REEL7 Production | 8 ld SOIC | REEL 1000 | -40 to 150C | 0 | 0 | N |
| AD22105ARZ Production | 8 ld SOIC | OTH 98 | -40 to 150C | 1.65 | 1.31 | Y |
| AD22105ARZ-REEL Production | 8 ld SOIC | REEL 2500 | -40 to 150C | 1.65 | 1.31 | Y |
| AD22105ARZ-REEL7 Production | 8 ld SOIC | REEL 1000 | -40 to 150C | 1.65 | 1.31 | Y |
