TMP235 ±2.5°C Analog output temperature sensor, with 10mV /°C gain | TI.com

TMP235 (ACTIVE) ±2.5°C Analog output temperature sensor, with 10mV /°C gain

 

Description

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.

Features

  • 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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Parametrics

Compare all products in Analog temperature sensors Email Download to Excel
Part number Order Local sensor accuracy (Max) (+/- C) Operating temperature range (C) Supply voltage (Min) (V) Supply voltage (Max) (V) Supply current (Max) (uA) Sensor gain (mV/Deg C) Rating Features Output impedance (ohms) Interface
TMP235 Order now 1     -40 to 150     2.3     5.5     12     10     Catalog     Industry standard pinout     20     Analog Output    
LM135 Order now 3     -55 to 150     5     3.01     400     10     Catalog       0.5     Analog Output    
LM135A Order now 1     -55 to 150     5     2.99     400     10     Catalog       0.5     Analog Output    
LM20 Order now 1.5     -40 to 125
-55 to 130    
2.4     5.5     7     -11.7     Catalog     Industry standard pinout
UL Recognized    
160     Analog Output    
LM235 Order now 3     -40 to 125     5     3.01     400     10     Catalog       0.5     Analog Output    
LM335 Order now 6     -40 to 100     5     3.04     400     10     Catalog       0.6     Analog Output    
LM35 Order now 0.5     -40 to 110
-55 to 150
0 to 100
0 to 70    
4     30     114     10     Catalog     UL Recognized     0.4     Analog Output    
LM50 Order now 2     -40 to 125     4.5     10     130     10     Catalog     UL Recognized     2000     Analog Output    
LM60 Order now 2     -25 to 125
-40 to 125    
2.7     10     110