Overview
The TMP75AIDR is a digital temperature sensor produced by Texas Instruments. It is designed to replace negative temperature coefficient (NTC) and positive temperature coefficient (PTC) thermistors in various applications. The device offers high accuracy and linearity without the need for calibration or external component signal conditioning. The TMP75AIDR features an on-chip 12-bit analog-to-digital converter (ADC) that provides resolutions down to 0.0625 °C. It is available in industry-standard SOIC-8 and MSOP-8 packages, making it versatile for different design requirements.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC-8, MSOP-8 |
| Number of Addresses | 8 (TMP75) |
| Interface Compatibility | SMBus, Two-Wire, I2C |
| Resolution | 9 to 12 Bits, User-Selectable |
| Accuracy | ±1 °C (Typical) from −40 °C to +125 °C, ±2 °C (Maximum) from −40 °C to +125 °C |
| Quiescent Current | 50 µA, 0.1 µA Standby |
| Supply Range | 2.7 V to 5.5 V |
| Operating Temperature Range | −40 °C to +125 °C |
Key Features
- Digital output with SMBus, two-wire, and I2C interface compatibility
- User-selectable resolution from 9 to 12 bits
- High accuracy: ±1 °C (typical) and ±2 °C (maximum) over the operating temperature range
- Low quiescent current: 50 µA active, 0.1 µA standby
- Wide supply range: 2.7 V to 5.5 V
- Small footprint in SOIC-8 and MSOP-8 packages
- NIST traceable for production units
- SMBus Alert function
Applications
- Power-supply temperature monitoring
- Computer peripheral thermal protection
- Notebook computers
- Cell phones
- Battery management
- Office machines
- Thermostat controls
- Environmental monitoring and HVAC
- Electromechanical device temperature monitoring
Q & A
- What is the TMP75AIDR used for?
The TMP75AIDR is a digital temperature sensor used to measure temperature in various applications, replacing NTC and PTC thermistors.
- What are the available packages for the TMP75AIDR?
The TMP75AIDR is available in SOIC-8 and MSOP-8 packages.
- What is the resolution of the TMP75AIDR?
The resolution is user-selectable from 9 to 12 bits.
- What is the accuracy of the TMP75AIDR?
The accuracy is ±1 °C (typical) and ±2 °C (maximum) from −40 °C to +125 °C.
- What is the quiescent current of the TMP75AIDR?
The quiescent current is 50 µA active and 0.1 µA in standby mode.
- What is the supply voltage range for the TMP75AIDR?
The supply voltage range is 2.7 V to 5.5 V.
- What interfaces does the TMP75AIDR support?
The TMP75AIDR supports SMBus, two-wire, and I2C interfaces.
- How many devices can be connected on one bus for the TMP75?
Up to eight devices can be connected on one bus for the TMP75.
- Is the TMP75AIDR NIST traceable?
- What are some common applications of the TMP75AIDR?
