Two-terminal integrated-circuit temperature transducer produces an output current proportional to absolute temperature. The device operates from a 4 V to 30 V dc supply and passes 1 µA/K as a high-impedance constant-current regulator. Laser trimming calibrates the output to 298.2 µA at 298.2 K, and AD590M grades specify ±0.5°C calibration accuracy with ±0.3°C linearity over the full range. The family supports temperature sensing from -55°C to +150°C and is available in flatpack, LFCSP, TO-52, SOIC, and die forms.
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| Sensor type | 2-terminal integrated-circuit temperature transducer |
| Output function | Current proportional to absolute temperature |
| Output current scale factor | 1µA/K |
| Operating temperature range | -55 to +150°C |
| Supply voltage range | 4 to 30V |
| Calibrated output current at 25°C | 298.2µA |
| Calibration temperature | 298.2K |
| Calibration accuracy | ±0.5, AD590M grade°C |
| Linearity | ±0.3 over full range, AD590M grade°C |
| Output impedance | >10MΩ |
| Power dissipation at 5 V and 25°C | 1.5mW |
| Maximum forward voltage withstand | 44V |
| Maximum reverse voltage withstand | 20V |
| Package options | 2-lead flatpack, 4-lead LFCSP, 3-pin TO-52, 8-lead SOIC, die |
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