Overview
The TMP1075DSGR from Texas Instruments is a highly accurate and low-power digital temperature sensor, designed as a replacement for the industry-standard LM75 and TMP75 sensors. It offers superior performance with a temperature accuracy of ±1°C over a wide temperature range and features an on-chip 12-bit analog-to-digital converter (ADC) providing a temperature resolution of 0.0625°C. The sensor is available in various packages, including SOIC-8, VSSOP-8, WSON-8, SOT563-6, and new packages such as 2.0mm × 2.0mm DFN and 1.6mm × 1.6mm SOT563-6, significantly reducing the printed circuit board (PCB) footprint. The TMP1075 is pin-to-pin and software compatible with existing xx75 designs, making it an ideal choice for upgrading current temperature sensing applications.
Key Specifications
| Parameter | Value |
|---|---|
| Temperature Accuracy | ±0.25°C (typical) from −55°C to 125°C, ±1°C (maximum) from −40°C to 110°C, ±2°C (maximum) from −55°C to 125°C |
| Resolution | 12 Bits, 0.0625°C |
| Supply Voltage Range | 1.62V to 5.5V |
| Average Current | 2.7µA |
| Shutdown Current | 0.37µA |
| Operating Temperature Range | −55°C to 125°C (D, DGK, DSG packages), −40°C to 125°C (DRL package) |
| Interface | SMBus, I2C |
| Device Addresses | Up to 32 |
| Package Types | SOIC-8, VSSOP-8, WSON-8, SOT563-6, 2.0mm × 2.0mm DFN, 1.6mm × 1.6mm SOT563-6 |
Key Features
- High temperature accuracy: ±1°C over a wide temperature range
- Low power consumption: 2.7µA average current and 0.37µA shutdown current
- Temperature independent of supply voltage
- Digital interface: SMBus and I2C compatible
- Software compatibility with industry standard LM75 and TMP75
- Supports up to 32 I2C addresses
- ALERT pin function for temperature alerts
- NIST traceability and ISO/IEC 17025 accredited standards for production testing
- Compact packages reducing PCB footprint significantly
Applications
The TMP1075DSGR is suitable for a wide range of applications requiring precise temperature measurement, including:
- Industrial automation and control systems
- Medical devices and equipment
- Aerospace and defense systems
- Automotive systems, especially in harsh environments
- Consumer electronics requiring accurate temperature sensing
- Server and data center monitoring
Q & A
- What is the temperature accuracy of the TMP1075DSGR?
The TMP1075DSGR has a temperature accuracy of ±0.25°C (typical) from −55°C to 125°C, ±1°C (maximum) from −40°C to 110°C, and ±2°C (maximum) from −55°C to 125°C.
- What is the resolution of the TMP1075DSGR?
The TMP1075DSGR has a 12-bit resolution, providing a temperature resolution of 0.0625°C.
- What are the supported interfaces for the TMP1075DSGR?
The TMP1075DSGR supports SMBus and I2C interfaces.
- How many device addresses does the TMP1075DSGR support?
The TMP1075DSGR supports up to 32 I2C addresses.
- What are the package options available for the TMP1075DSGR?
The TMP1075DSGR is available in SOIC-8, VSSOP-8, WSON-8, SOT563-6, 2.0mm × 2.0mm DFN, and 1.6mm × 1.6mm SOT563-6 packages.
- What is the operating temperature range for the TMP1075DSGR?
The operating temperature range is −55°C to 125°C for D, DGK, and DSG packages, and −40°C to 125°C for the DRL package.
- Is the TMP1075DSGR compatible with existing xx75 designs?
Yes, the TMP1075DSGR is pin-to-pin and software compatible with existing xx75 designs, making it an ideal choice for upgrades.
- What is the power consumption of the TMP1075DSGR?
The TMP1075DSGR has an average current of 2.7µA and a shutdown current of 0.37µA.
- Does the TMP1075DSGR support ALERT functionality?
Yes, the TMP1075DSGR includes an ALERT pin function for temperature alerts.
- Are the TMP1075DSGR units NIST traceable?
Yes, the TMP1075DSGR units are 100% tested on a production setup that is NIST traceable and verified with equipment calibrated to ISO/IEC 17025 accredited standards.
