The TMP03/TMP04 are monolithic temperature detectors that generate a modulated serial digital output that varies in direct proportion to the temperature of the device. An onboard sensor generates a voltage precisely proportional to absolute temperature which is compared to an internal voltage reference and input to a precision digital modulator. The ratiometric encoding format of the serial digital output is independent of the clock drift errors common to most serial modulation techniques such as voltage-to-frequency converters. Overall accuracy is ±1.5°C (typical) from –25°C to +100°C, with excellent transducer linearity. The digital output of the TMP04 is CMOS/TTL compatible, and is easily interfaced to the serial inputs of most popular microprocessors. The open-collector output of the TMP03 is capable of sinking 5 mA. The TMP03 is best suited for systems requiring isolated circuits utilizing optocouplers or isolation transformers.
The TMP03 and TMP04 are specified for operation at supply voltages from 4.5 V to 7 V. Operating from 5 V, supply current (unloaded) is less than 1.3 mA.
The TMP03/TMP04 are rated for operation over the –40°C to +100°C temperature range in the low cost TO-92, SO-8, and TSSOP-8 surface mount packages. Operation extends to 150°C with reduced accuracy.
Features and Benefits | Analog to Digital ConvertersSensors |
| Document | note |
| TMP03/TMP04: Serial Digital Output Thermometers Data Sheet (Rev. B) | PDF 308.83 K |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| TMP03FS Production | 8 ld SOIC | OTH 98 | -40 to 85C | 0 | 0 | N |
| TMP03FSZ Production | 8 ld SOIC | OTH 98 | -40 to 85C | 4.1 | 3.7 | Y |
| TMP03FSZ-REEL Production | 8 ld SOIC | REEL 2500 | -40 to 85C | 0 | 0 | Y |
| TMP03FT9 Production | 3 ld TO-92 | OTH 100 | -40 to 85C | 4.29 | 3.88 | N |
| TMP03FT9Z Production | 3 ld TO-92 | OTH 100 | -40 to 85C | 3.91 | 3.53 | Y |
