Specifications
| Type | Description |
|---|---|
| Part Number | TMP275 |
| Manufacturer | Texas Instruments |
| Product Type | Digital temperature sensor |
| Category | Sensor |
| Package / Case | SOIC-8, 4.90 mm x 3.91 mm; VSSOP-8, 3.00 mm x 3.00 mm |
| Temperature accuracy, -20°C to 100°C, V+=3.3 V | ±0.5 °C max |
| Temperature accuracy, 0°C to 100°C, V+=3 V to 3.6 V | ±0.75 °C max |
| Temperature accuracy, -40°C to 125°C, V+=3 V to 3.6 V | ±1 °C max |
| Temperature accuracy, 25°C to 100°C, V+=3.3 V to 5.5 V | 0.2 °C typ, ±1.5 °C max |
| Temperature input range, electrical characteristics | -40°C to 125°C |
| Temperature resolution, 12-bit resolution | 0.0625 °C |
| Selectable digital resolution, user-selectable configuration | 9 to 12 bits |
| Repeatability, 25°C, V+=3.3 V, one-shot mode, 1 sample per minute for 24 hours | ±0.0625 °C |
| Long-term drift, 500 hours at 150°C junction temperature | ±0.0625 °C |
| Supply voltage operating range, recommended operating conditions | 2.7 V to 5.5 V |
| Specified temperature range, electrical characteristics | -40°C to 125°C |
| Operating temperature range, electrical characteristics | -55°C to 127°C |
| Operating free-air temperature, recommended operating conditions | -40°C to 125°C |
| Quiescent current, serial bus inactive | 50 µA typ, 85 µA max |
| Quiescent current, serial bus active, SCL frequency = 400 kHz | 100 µA max |
| Quiescent current, serial bus active, SCL frequency = 3.4 MHz | 410 µA max |
| Shutdown current, serial bus inactive | 0.1 µA typ, 3 µA max |
| Shutdown current, serial bus active, SCL frequency = 400 kHz | 60 µA max |
| Shutdown current, serial bus active, SCL frequency = 3.4 MHz | 380 µA max |
| Conversion time, 9-bit resolution | 27.5 ms typ, 37.5 ms max |
| Conversion time, 10-bit resolution | 55 ms typ, 75 ms max |
| Conversion time, 11-bit resolution | 110 ms typ, 150 ms max |
| Conversion time, 12-bit resolution | 220 ms typ, 300 ms max |
| Interface compatibility, digital output interface | SMBus, two-wire, I2C |
| I2C/SMBus addresses, A0, A1, A2 selectable to GND or V+ | 8 addresses |
| SCL operating frequency, fast mode timing requirements | 0.001 MHz to 0.4 MHz |
| SCL operating frequency, high-speed mode timing requirements | 0.001 MHz to 2.38 MHz |
| Bus-free time between STOP and START, fast mode | 1300 ns min |
| Bus-free time between STOP and START, high-speed mode | 160 ns min |
| Input capacitance, digital input/output | 3 pF typ |
| Input logic high voltage, digital input VIH | 0.7(V+) min, 6 V max |
| Input logic low voltage, digital input VIL | -0.5 V min, 0.3(V+) max |
| Input leakage current, 0 V <= VIN <= 6 V | 1 µA max |
| SCL/SDA input voltage hysteresis, SCL and SDA pins | 500 mV typ |
| SDA output low voltage, IOL=3 mA | 0 V min, 0.15 V typ, 0.4 V max |
| ALERT output low voltage, IOL=4 mA | 0 V min, 0.15 V typ, 0.4 V max |
| Timeout time, digital interface timeout | 25 ms min, 54 ms typ, 74 ms max |
| Absolute maximum supply voltage | 7 V max |
| Absolute maximum input voltage | -0.5 V to 7 V |
| Absolute maximum input current | 10 mA max |
| Absolute maximum operating temperature | -55°C to 127°C |
| Maximum junction temperature | 150°C max |
| Storage temperature | -60°C to 130°C |
| ESD rating HBM, ANSI/ESDA/JEDEC JS-001, all pins | ±4000 V |
| ESD rating CDM, JEDEC JESD22-C101, all pins | ±1000 V |
| ESD rating machine model, all pins | ±300 V |
| Junction-to-ambient thermal resistance, D SOIC-8 and DGK VSSOP-8 packages | 120 °C/W |
| Junction-to-case top thermal resistance, D SOIC-8 and DGK VSSOP-8 packages | 66.7 °C/W |
| Junction-to-board thermal resistance, D SOIC-8 and DGK VSSOP-8 packages | 60.4 °C/W |
| Junction-to-top characterization parameter, D SOIC-8 and DGK VSSOP-8 packages | 17.8 °C/W |
| Junction-to-board characterization parameter, D SOIC-8 and DGK VSSOP-8 packages | 59.9 °C/W |
| Pin 1 function | SDA, serial data, open-drain I/O requiring pullup resistor |
| Pin 2 function | SCL, serial clock input requiring pullup resistor |
| Pin 3 function | ALERT, overtemperature alert open-drain output requiring pullup resistor |
| Pin 8 function | V+, supply voltage 2.7 V to 5.5 V |
| Datasheet Status | request_only |
Product Overview
The TMP275 is a Texas Instruments digital temperature sensor for systems that require a bus-connected temperature measurement device. It provides a digital output interface compatible with SMBus, two-wire, and I2C signaling, and it supports eight selectable addresses through A0, A1, and A2 pins tied to GND or V+.
The sensor operates from a recommended 2.7 V to 5.5 V supply and has a specified temperature range of -40°C to 125°C. Resolution is user-selectable from 9 to 12 bits, with 0.0625°C resolution in 12-bit mode. Conversion time scales with resolution, from 27.5 ms typical at 9-bit resolution to 220 ms typical at 12-bit resolution.
Package options include SOIC-8 measuring 4.90 mm x 3.91 mm and VSSOP-8 measuring 3.00 mm x 3.00 mm. Pin functions include SDA open-drain serial data, SCL serial clock input, ALERT open-drain overtemperature output, and V+ supply input.
Key Features
- Digital temperature sensor with SMBus, two-wire, and I2C interface
- Selectable 9-bit to 12-bit digital temperature resolution
- 0.0625°C resolution in 12-bit operating mode
- 2.7 V to 5.5 V recommended supply range
- Specified -40°C to 125°C temperature measurement range
- Eight selectable I2C/SMBus addresses using A0, A1, A2
- Open-drain ALERT output for overtemperature signaling
- Shutdown current 0.1 µA typical with inactive bus
- SOIC-8 and VSSOP-8 package options available
- Fast-mode and high-speed SCL timing specifications
Typical Applications
- I2C temperature monitoring
- SMBus temperature sensing
- Board-level thermal measurement
- Overtemperature alert circuits
- Low-power temperature sensing
- Multi-address sensor bus designs
- SOIC-8 sensor assemblies
- VSSOP-8 compact sensor layouts
Procurement Notes
When requesting a quote for TMP275, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For memory and storage sourcing, density, organization, speed grade, voltage, package, temperature grade, date code, lifecycle status and original packing condition should be verified before approval.
FAQ
What supply voltage range does the TMP275 support?
The TMP275 recommended operating supply range is 2.7 V to 5.5 V. Pin 8 is the V+ supply input, and the pin configuration fact also lists this same 2.7 V to 5.5 V supply range.
What digital interfaces are compatible with the TMP275?
The TMP275 digital output interface is compatible with SMBus, two-wire, and I2C. It also provides eight selectable I2C/SMBus addresses using address pins A0, A1, and A2 connected to GND or V+.
What temperature resolution is available on the TMP275?
The TMP275 supports user-selectable digital resolution from 9 to 12 bits. In 12-bit resolution mode, the listed temperature resolution is 0.0625°C.
What packages are listed for the TMP275?
The listed package options are SOIC-8 measuring 4.90 mm x 3.91 mm and VSSOP-8 measuring 3.00 mm x 3.00 mm. Thermal resistance values are specified for D SOIC-8 and DGK VSSOP-8 packages.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.