Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Output Type | Linear analog voltage, positive slope |
| Transfer Function | 10 mV/°C nominal gain; about 500 mV at 0°C |
| Temperature Range | −40°C to +150°C |
| Accuracy Class | A2 ordering level; ±2.5°C maximum over −40°C to +150°C |
| Supply | 2.3 V to 5.5 V |
| Power | 9 µA typical quiescent current; about 800 µs typical power-on time |
| Output Drive | Class-AB output; supports capacitive loads up to 1000 pF |
| Packing | SOT-23 (DBZ), 3 pins; 3000-piece large tape and reel |
Product Overview
TMP235A2DBZR is an analog temperature sensor for systems that prefer a direct voltage signal instead of a serial digital interface. Its nominal 10 mV/°C positive slope and 500 mV output at 0°C make temperature conversion simple for an MCU ADC, comparator or analog control loop.
The absence of an I²C address, conversion register or digital timing can be an advantage in simple designs, but final system accuracy now depends on the host ADC reference, ADC gain/offset, analog routing and filtering in addition to the sensor itself.
The A2 option is the tighter TMP235 ordering grade, and the sensor covers −40°C to 150°C from a 2.3 V to 5.5 V supply.
For related devices, see HKEQGOO’s Temperature Sensors category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TMP235A2DBZR |
| Output Type | Linear analog voltage, positive slope |
| Transfer Function | 10 mV/°C nominal gain; about 500 mV at 0°C |
| Temperature Range | −40°C to +150°C |
| Accuracy Class | A2 ordering level; ±2.5°C maximum over −40°C to +150°C |
| Supply | 2.3 V to 5.5 V |
| Power | 9 µA typical quiescent current; about 800 µs typical power-on time |
| Output Drive | Class-AB output; supports capacitive loads up to 1000 pF |
| Packing | SOT-23 (DBZ), 3 pins; 3000-piece large tape and reel |
| Manufacturer Status | Active / Production |
| Part Marking | 2352 |
Functional Highlights
Analog output moves part of the error budget into the host ADC
A nominal 10 mV/°C signal means 1°C corresponds to only 10 mV. ADC reference error, ground offset and coupled noise therefore convert directly into temperature error unless the analog path is designed carefully.
Fast power-up supports duty-cycled measurement
The roughly 800 µs typical power-on behavior and 9 µA operating current make it practical to switch sensor power in systems that only need periodic temperature samples.
Design Considerations
- Budget ADC reference and input error together with sensor accuracy.
- Keep VOUT routing away from switching nodes; analog noise appears directly as temperature noise.
- Use the datasheet piecewise transfer function when highest accuracy above 100°C is required.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists TMP235A2DBZR as Active / Production; SOT-23 (DBZ), 3 pins; 3000-piece large tape and reel; Level-1-260C-UNLIM; −40°C to +150°C; marking 2352.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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