Overview
The TMP75AQDGKRQ1 is a digital temperature sensor produced by Texas Instruments. It is part of the TMP75-Q1 series, which is designed for automotive and industrial applications. This sensor is ideal for replacing negative temperature coefficient (NTC) and positive temperature coefficient (PTC) thermistors. It offers high accuracy and linearity without the need for calibration or external component signal conditioning. The TMP75AQDGKRQ1 operates over a wide temperature range of –40°C to +125°C and is available in an 8-pin VSSOP package, conforming to the industry-standard LM75 form factor and pinout.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | VSSOP (DGK) | |
| Pins | 8 | |
| Operating Temperature Range | –40 to 125 | °C |
| Supply Voltage | 2.7 to 5.5 | V |
| Accuracy (Typical) | ±1 | °C |
| Accuracy (Maximum) | ±3 | °C |
| Resolution | 9 to 12 Bits, User-Selectable | |
| Quiescent Current | 50-µA, 0.1-µA Standby | |
| Interface | SMBus™, Two-Wire, and I²C | |
| Address Capability | Up to 8 devices on one bus | |
| ESD Classification | HBM Level 2, CDM Level C6 |
Key Features
- AEC-Q100 Qualified: Temperature Grade 1: –40°C to +125°C ambient operation temperature range.
- High Accuracy: Typical accuracy of ±1°C and maximum accuracy of ±3°C over the operating temperature range.
- Resolution: User-selectable resolution from 9 to 12 bits, offering a resolution down to 0.0625°C.
- Low Power Consumption: Quiescent current of 50-µA and standby current of 0.1-µA.
- Wide Supply Range: Operates from 2.7 V to 5.5 V.
- Interface Compatibility: Supports SMBus, two-wire, and I²C interfaces.
- Alert Function: Features an SMBus alert function for overtemperature conditions.
- NIST Traceable: Production units are 100% tested against NIST-traceable sensors and verified through ISO/IEC 17025 accredited calibrations.
Applications
- Communication Systems: Ideal for temperature monitoring in communication equipment.
- Computer Systems: Used in computer and server systems for thermal management.
- Consumer Electronics: Suitable for various consumer electronic devices requiring temperature monitoring.
- Environmental Monitoring: Used in environmental monitoring systems to measure temperature accurately.
- Industrial Applications: Applied in industrial automation, control systems, and instrumentation.
- Automotive Systems: Used in automotive applications such as climate controls, infotainment systems, engine control units, and battery control units.
Q & A
- What is the operating temperature range of the TMP75AQDGKRQ1?
The operating temperature range is –40°C to +125°C.
- What is the typical accuracy of the TMP75AQDGKRQ1?
The typical accuracy is ±1°C).
- What interfaces does the TMP75AQDGKRQ1 support?
The TMP75AQDGKRQ1 supports SMBus, two-wire, and I²C interfaces).
- What is the resolution of the TMP75AQDGKRQ1?
The resolution is user-selectable from 9 to 12 bits, offering a resolution down to 0.0625°C).
- What is the supply voltage range for the TMP75AQDGKRQ1?
The supply voltage range is 2.7 V to 5.5 V).
- Is the TMP75AQDGKRQ1 AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified with Temperature Grade 1: –40°C to +125°C ambient operation temperature range).
- How many devices can be connected on one bus using the TMP75AQDGKRQ1?
Up to eight devices can be connected on one bus).
- Does the TMP75AQDGKRQ1 have an alert function?
Yes, it features an SMBus alert function for overtemperature conditions).
- What is the quiescent current of the TMP75AQDGKRQ1?
The quiescent current is 50-µA, and the standby current is 0.1-µA).
- Are the TMP75AQDGKRQ1 production units NIST-traceable?
Yes, the production units are 100% tested against NIST-traceable sensors and verified through ISO/IEC 17025 accredited calibrations).
