The TMP35/TMP36/TMP37 are low voltage, precision centigrade temperature sensors. They provide a voltage output that is linearly proportional to the Celsius (centigrade) temperature. The TMP35/ TMP36/TMP37 do not require any external calibration to provide typical accuracies of ±1°C at +25°C and ±2°C over the −40°C to +125°C temperature range.
The low output impedance of the TMP35/TMP36/TMP37 and its linear output and precise calibration simplify interfacing to temperature control circuitry and ADCs. All three devices are intended for single-supply operation from 2.7 V to 5.5 V maximum. The supply current runs well below 50 μA, providing very low self-heating—less than 0.1°C in still air. In addition, a shutdown function is provided to cut the supply current to less than 0.5 μA.
The TMP35 is functionally compatible with the LM35/LM45 and provides a 250 mV output at 25°C. The TMP35 reads temperatures from 10°C to 125°C. The TMP36 is specified from −40°C to +125°C, provides a 750 mV output at 25°C, and operates to 125°C from a single 2.7 V supply. The TMP36 is functionally compatible with the LM50. Both the TMP35 and TMP36 have an output scale factor of 10 mV/°C.
The TMP37 is intended for applications over the range of 5°C to 100°C and provides an output scale factor of 20 mV/°C. The TMP37 provides a 500 mV output at 25°C. Operation extends to 150°C with reduced accuracy for all devices when operating from a 5 V supply.
The TMP35/TMP36/TMP37 are available in low cost 3-lead TO-92, 8-lead SOIC_N, and 5-lead SOT-23 surface-mount packages.
Features and Benefits
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| Document | note |
| TMP35/TMP36/TMP37: Low Voltage Temperature Sensors Data Sheet (Rev. H) | PDF 485 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| TMP36-PT7 Last Time Buy | CHIPS OR DIE | OTH 5000 | -40 to 125C | 0.61 | 0.51 | Y |
| TMP36FS Production | 8 ld SOIC | OTH 98 | -40 to 125C | 0.83 | 0.72 | N |
| TMP36FS-REEL Last Time Buy | 8 ld SOIC | REEL 2500 | -40 to 125C | 0 | 0.72 | N |
| TMP36FSZ Production | 8 ld SOIC | OTH 98 | -40 to 125C | 0.76 | 0.66 | Y |
| TMP36FSZ-REEL Production | 8 ld SOIC | REEL 2500 | -40 to 125C | 0 | 0.66 | Y |
| TMP36GRT-REEL7 Production | 5 ld SOT-23 | REEL 3000 | -40 to 125C | 0 | 0.62 | N |
| TMP36GRTZ-REEL7 Production | 5 ld SOT-23 | REEL 3000 | -40 to 125C | 0 | 0.56 | Y |
| TMP36GSZ Production | 8 ld SOIC | OTH 98 | -40 to 125C | 0.52 | 0.45 | Y |
| TMP36GSZ-REEL Production | 8 ld SOIC | REEL 2500 | -40 to 125C | 0 | 0.45 | Y |
| TMP36GSZ-REEL7 Production | 8 ld SOIC | REEL 1000 | -40 to 125C | 0 | 0.45 | Y |
| TMP36GT9 Production | T092 | OTH 100 | -40 to 125C | 0.57 | 0.49 | N |
| TMP36GT9Z Production | 3 ld TO-92 | OTH 100 | -40 to 125C | 0.52 | 0.45 | Y |
