TMP235

• Cost-effective alternative to thermistors
• Tight accuracy across a wide temperature range:
  • ±2.5°C (maximum): –40°C to +150°C (TMP235)
  • ±2.5°C (maximum): –10°C to +125°C (TMP236)
• Available in two accuracy level variants:
  • A2 level: ±0.5°C (typical)
  • A4 level: ±1°C (typical)
• Positive slope sensor gain, offset (typical):
  • 10 mV/°C, 500 mV at 0°C (TMP235)
  • 19.5 mV/°C, 400 mV at 0°C (TMP236)
• Wide operating supply voltage range:
  • 2.3 V to 5.5 V (TMP235)
  • 3.1 V to 5.5 V (TMP236)
• Short-circuit protected output
• Low power: 9 µA (typical)
• Strong output for driving loads up to 1000 pF
• Available package options:
  • 5-pin SC70 (DCK) surface mount
  • 3-pin SOT-23 (DBZ) surface mount
  • Footprint compatible with industry-standard LMT8x-Q1 and LM20 temperature sensors

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The TMP23x devices are a family of precision CMOS integrated-circuit linear analog temperature sensors with an output voltage proportional to temperature engineers can use in multiple analog temperature-sensing applications. These temperature sensors are more accurate than similar pin-compatible devices on the market, featuring typical accuracy from 0°C to +70°C of ±0.5°C. The increased accuracy of the series is designed for many analog temperature-sensing applications.The TMP235 device provides a positive slope output of 10 mV/°C over the full –40°C to +150°C temperature range and a supply range from 2.3 V to 5.5 V. The higher gain TMP236 sensor provides a positive slope output of 19.5 mV/°C from –10°C to +125°C and a supply range from 3.1 V to 5.5 V.

The 9-µA typical quiescent current and 800-µs typical power-on time enable effective power-cycling architectures to minimize power consumption for battery-powered devices. A class-AB output driver provides a strong 500-µA maximum output to drive capacitive loads up to 1000 pF and is designed to directly interface to analog-to-digital converter sample and hold inputs. With excellent accuracy and a strong linear output driver, the TMP23x analog output temperature sensors are cost-effective alternatives to passive thermistors.