Overview
The TMP235A2DCKR from Texas Instruments is a precision CMOS integrated-circuit linear analog temperature sensor. This device is part of the TMP23x family, known for its high accuracy and wide operating temperature range. The TMP235A2DCKR provides a positive slope output of 10 mV/°C over the full –40°C to +150°C temperature range, making it suitable for various analog temperature-sensing applications. It is a cost-effective alternative to thermistors, offering tight accuracy and a wide operating supply voltage range from 2.3 V to 5.5 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | –40°C to +150°C | °C |
| Supply Voltage Range | 2.3 V to 5.5 V | V |
| Temperature Coefficient (Sensor Gain) | 10 mV/°C | mV/°C |
| Output Voltage Offset at 0°C | 500 mV | mV |
| Typical Accuracy (A2 Level) | ±0.5°C (0°C to +70°C) | °C |
| Maximum Accuracy | ±2.5°C (–40°C to +150°C) | °C |
| Operating Current | 9 µA (typical) | µA |
| Output Current | Up to 500 µA | µA |
| Output Impedance | 20 Ω (at 100 Hz) | Ω |
| Package Options | 5-pin SC70 (DCK), 3-pin SOT-23 (DBZ) |
Key Features
- High accuracy across a wide temperature range with typical accuracy of ±0.5°C from 0°C to +70°C.
- Positive slope output of 10 mV/°C.
- Wide operating supply voltage range from 2.3 V to 5.5 V.
- Low power consumption with a typical quiescent current of 9 µA.
- Short-circuit protected output.
- Strong output for driving loads up to 1000 pF.
- Footprint compatible with industry-standard LMT8x-Q1 and LM20 temperature sensors.
Applications
- Grid infrastructure
- Wireless and telecom infrastructure
- Automotive infotainment
- Factory automation and control
- Test and measurement
Q & A
- What is the operating temperature range of the TMP235A2DCKR?
The operating temperature range is –40°C to +150°C. - What is the supply voltage range for the TMP235A2DCKR?
The supply voltage range is from 2.3 V to 5.5 V. - What is the typical accuracy of the TMP235A2DCKR at room temperature?
The typical accuracy is ±0.5°C from 0°C to +70°C. - What is the output voltage offset at 0°C for the TMP235A2DCKR?
The output voltage offset at 0°C is 500 mV. - How much current does the TMP235A2DCKR typically consume?
The typical quiescent current is 9 µA. - What is the maximum output current of the TMP235A2DCKR?
The maximum output current is up to 500 µA. - Is the TMP235A2DCKR protected against short circuits?
Yes, the output is short-circuit protected. - What are the available package options for the TMP235A2DCKR?
The available package options are 5-pin SC70 (DCK) and 3-pin SOT-23 (DBZ). - What are some common applications of the TMP235A2DCKR?
Common applications include grid infrastructure, wireless and telecom infrastructure, automotive infotainment, factory automation and control, and test and measurement. - Is the TMP235A2DCKR compatible with other industry-standard temperature sensors?
Yes, it is footprint compatible with industry-standard LMT8x-Q1 and LM20 temperature sensors.
