Configured for temperature measurement, this solid-state temperature sensor supports compact temperature-sensing applications. In addition, it features a 6 x 0.25" (152.4 x 6.4 mm) probe package for extended sensing reach. It suits routine measurement, service, and instrumentation applications.
Configured for temperature measurement, this solid-state temperature sensor supports compact temperature-sensing applications. In addition, it features a 6 x 0.25" (152.4 x 6.4 mm) probe package for extended sensing reach. It suits routine measurement, service, and instrumentation applications.
The OM-2628 probe features the integrated circuit transducer AD592CN. This sensor is a two terminal monolithic integrated circuit temperature transducer that provides an output current proportional to absolute temperature. For a wide range of supply voltages the transducer acts as a high impedance temperature dependent current source of 1 μA/K. Improved design and laser wafer trimming of the IC’s thin film resistors allows the AD592CN to achieve absolute accuracy levels and nonlinearity errors previously unattainable at a comparable price.
The OM-2628 probe can be employed in applications between -13 to 221°F (-25 and 105°C) where conventional temperature sensors (i.e., thermistor, RTD, thermocouple, diode) are currently being used. Expensive linearization circuitry, precision voltage references, bridge components, resistance measuring circuitry and cold junction compensation are not required with the OM-2628 probe
The OM-2628 is particularly useful in remote sensing applications, the AD592CN is immune to voltage drops and voltage noise over long lines due to its high impedance current output.
Features
Applications
| Accuracy | |
| Calibration Error at 77°F (25°C) | 0.54°F (0.3°C) typical, 0.9°F (0.5°C) maximum |
| TA = 32 to 158°F (0 to 70°C) | Error over temperature : 0.72°F (0.4°C) typical 1.4°F (0.8°C) maximum Nonlinearity: 0.09°F (0.05°C) typical 0.27°F (0.15°C) maximum |
| TA = -13 to 221°F (-25 to 105°C) | Error over temperature : 0.9°F (0.5°C) typical 1.8°F (1°C) maximum Nonlinearity: 0.18°F (0.1°C) typical 0.63°F (0.35°C) maximum |
| Output Characteristics | |
| Nominal Current Output at 25°C (298.2 K) | 298.2 μA typical |
| Temperature Coefficient | 1 μA/°C typical |
| Repeatability | 0.18°F (0.1°C) typical |
| Long Term Stability | 0.18°F/month (0.1°C) typica |
| Absolute Maximum Ratings | |
| Operating Temperature | -13°F (-25°C) minimum, 221°F (105°C) maximum |
| Package Temperature | -49°F (-45°C) minimum, 257°F (125°C) maximum |
| Forward Voltage (+ to -) | 44 V maximum |
| Reverse Voltage (- to +) Lead Temperature | 20 V maximum |
| Soldering (10 seconds) | 1062°F (572°C) maximum |
| Power Supply | |
| Operating Voltage Range Power Supply Rejection | 4 V minimum, 30 V maximum 4 V < Vs < 5 V: 0.9°F (0.5°C)/V maximum 5 V < Vs < 15 V: 0.36°F (0.2°C)/V maximum 15 V < Vs < 30 V: 0.18°F (0.1°C)/V maximum |
| Accuracy | |
| Calibration Error at 77°F (25°C) | 0.54°F (0.3°C) typical, 0.9°F (0.5°C) maximum |
| TA = 32 to 158°F (0 to 70°C) | Error over temperature : 0.72°F (0.4°C) typical 1.4°F (0.8°C) maximum Nonlinearity: 0.09°F (0.05°C) typical 0.27°F (0.15°C) maximum |
| TA = -13 to 221°F (-25 to 105°C) | Error over temperature : 0.9°F (0.5°C) typical 1.8°F (1°C) maximum Nonlinearity: 0.18°F (0.1°C) typical 0.63°F (0.35°C) maximum |
| Output Characteristics | |
| Nominal Current Output at 25°C (298.2 K) | 298.2 μA typical |
| Temperature Coefficient | 1 μA/°C typical |
| Repeatability | 0.18°F (0.1°C) typical |
| Long Term Stability | 0.18°F/month (0.1°C) typica |
| Absolute Maximum Ratings | |
| Operating Temperature | -13°F (-25°C) minimum, 221°F (105°C) maximum |
| Package Temperature | -49°F (-45°C) minimum, 257°F (125°C) maximum |
| Forward Voltage (+ to -) | 44 V maximum |
| Reverse Voltage (- to +) Lead Temperature | 20 V maximum |
| Soldering (10 seconds) | 1062°F (572°C) maximum |
| Power Supply | |
| Operating Voltage Range Power Supply Rejection | 4 V minimum, 30 V maximum 4 V < Vs < 5 V: 0.9°F (0.5°C)/V maximum 5 V < Vs < 15 V: 0.36°F (0.2°C)/V maximum 15 V < Vs < 30 V: 0.18°F (0.1°C)/V maximum |
