SLYW038D September 2014 – April 2025 AFE030 , AFE031 , AFE032 , ALM2402-Q1 , LMC6035-Q1 , LMV601 , LMV602 , LMV604 , LMV611 , LMV612 , LMV614 , LMV881 , OPA1602 , OPA1604 , OPA1612 , OPA1612-Q1 , OPA1622 , OPA1652 , OPA1654 , OPA1662 , OPA1662-Q1 , OPA1664 , OPA1688 , OPA170 , OPA170-EP , OPA171-Q1 , OPA172 , OPA180 , OPA188 , OPA191 , OPA192 , OPA197 , OPA211-EP , OPA2170 , OPA2171 , OPA2171-EP , OPA2171-Q1 , OPA2172 , OPA2180 , OPA2188 , OPA2192 , OPA2211-EP , OPA2211-HT , OPA2227-EP , OPA2277-EP , OPA2313 , OPA2314 , OPA2314-EP , OPA2314-Q1 , OPA2316 , OPA2317 , OPA2320-Q1 , OPA2322-Q1 , OPA2376-Q1 , OPA2625 , OPA313 , OPA314 , OPA316 , OPA317 , OPA320 , OPA322 , OPA348-Q1 , OPA355-Q1 , OPA4170 , OPA4171 , OPA4171-Q1 , OPA4172 , OPA4180 , OPA4188 , OPA4192 , OPA4277-EP , OPA4313 , OPA4314 , OPA4316 , OPA4317 , OPA4322 , OPA4322-Q1 , OPA549-HIREL , OPA564-Q1 , OPA625 , SM73307 , SM73308 , TLC2274-HT , TLE2141-Q1 , TLV2314 , TLV2316 , TLV2333 , TLV27L2-Q1 , TLV314 , TLV316 , TLV333 , TLV4314 , TLV4316 , TLV4333
Thermistor | RTD | Diode | Thermocouple | |
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Temp range | –55°C< T < 150°C | –200°C< T < 850°C | –55°C< T < 150°C | –250°C< T < 1800°C |
Cost | Very low | High | Low | Low |
Accuracy | Good accuracy at one temperature Less accurate over full range | Excellent accuracy | Poor accuracy without calibration | Goodaccuracy with polynomial correction |
Linearity |
Verynonlinear. Follows reciprocal of logarithmic function |
Fairlylinear Nonlinearity < 4.5% of full scale Relatively simple quadratic function |
Fairly linear slope ≈ –2mV/CSlope varies according to current excitation, diode type, and diode processing |
Fairlylinear Nonlinearity < 10% of full scale Complex 10th order polynomial |
Construction | Less rugged | Dependson type (can be rugged) | Rugged | Most rugged |
Outputrange |
Typically 10s to 100s of k? fullscale Very wide variation in resistance |
18 to 390? for PT100 180 to 3.9k? for PT1000 |
0.4to 0.8V |
10sof millivolts |
Applications | General purpose | Scientific and industrial | Low cost temperature monitor Low cost linear response | Industrial temperature measurement |
General | Requires excitation | Requires excitation | Requires excitation | Self-powered Requires cold junction comp |
Diode | Analog IC temperature sensor | Digital IC temperature sensor | Temperature switch/thermostat | |
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Temp range | –55°C< T < 150°C | –55°C< T < 150°C | –55°C< T < 150°C | –55°C< T < 150°C |
Cost | Very low | Low | Low | Low |
Accuracy |
Poor accuracy without calibration |
Gooddevice accuracy without calibration. Total Terror ≤ 0.13°C. | Zero calibration required. Total Terror including ADC ≤ 0.1°C. |
Zero calibration required. Total Terror including comparator ≤0.1°C. |
Linearity | Fairly linear ≈ -2mV/°C. Slope var- ies according to current excitation, diode type,and diode processing from -5.5mV/C to +19.5mV/C. | Fairlylinear. With analog sensors a variety of slope options in the range from -5.5mV/C to +19.5mV/C. |
Directreadout of temperature value. 8 to 16 bits of resolution. |
Programmable temperature threshold |
Construction | Rugged | Rugged | Rugged | Rugged |
Outputrange | 0.4Vto 0.8V | 0 to 3V for analog. Different output ranges for different devices. | Digital interfaces: I2C, SPI, UART | Active high or active low output |
Applications | Low cost temperature monitor. Low cost linear response. | General purpose, industrial and automotive | General purpose, industrial and automotive | General purpose, industrial and automotive |
General |
Requires excitation |
No external excitation required. Analog output normally directly connected to ADC. | Integrated temperature sensorand ADC/comparator. Options to measure remote diodes. | Resistorprogrammable, pin programmable, factory preset |