Part Number: TMP125AIDBVR

Manufacturer: Texas Instruments

Description: SENSOR DIGITAL -40C-125C SOT23-6

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Technical Specifications of TMP125AIDBVR

Datasheet  TMP125AIDBVR datasheet
Category Sensors, Transducers
Family Temperature Sensors – Analog and Digital Output
Manufacturer Texas Instruments
Packaging Cut Tape (CT)
Part Status Active
Sensor Type Digital, Local
Sensing Temperature – Local -40°C ~ 125°C
Sensing Temperature – Remote
Output Type SPI
Voltage – Supply 2.7 V ~ 5.5 V
Resolution 9 b
Features One-Shot, Shutdown Mode
Accuracy – Highest (Lowest) ±2°C (±2.5°C)
Test Condition -25°C ~ 85°C (-40°C ~ 125°C)
Operating Temperature -55°C ~ 125°C
Mounting Type Surface Mount
Package / Case SOT-23-6
Supplier Device Package SOT-23-6

TMP125AIDBVR Introduction

The TMP125AIDBVR is a small, flexible temperature monitor that uses the Serial Peripheral Interface (SPI) protocol. This thorough guide will give you a deep understanding of the TMP125AIDBVR’s features, specs, and uses. Whether you’re working on a communication, computer, consumer, environmental, industrial, or instrumentation project, the TMP125AIDBVR can help you get correct temperature readings.

Overview of the TMP125AIDBVR

The TMP125AIDBVR is a temperature monitor with a small size that can measure temperatures accurately. It is made to work with the Serial Peripheral Interface (SPI) standard, which makes it easy to connect to other devices and microcontrollers. The sensor is in a SOT23-6 package, which is a small and common type of package in the electronics business.

The TMP125AIDBVR can measure temperatures between -25°C and +85°C with a precision of 2°C. It also has a bigger temperature range, from -40°C to +125°C, and a more accurate reading of 2.5°C over that range. With this level of accuracy, the sensor can be used in a wide range of situations where accurate monitoring of temperature is important.

One of the best things about the TMP125AIDBVR is that it doesn’t need any extra parts to work. This means that you can connect it straight to your microcontroller or other devices without adding extra circuitry. This makes the design simpler and reduces the number of parts. This makes the TMP125AIDBVR a good choice for projects with limited room or applications where ease of use and low cost are important.

The TMP125AIDBVR has a lot of benefits because it works with SPI. SPI is a widely used serial communication system that lets the sensor and the host device send and receive data quickly and reliably. It can send data quickly, which makes it good for applications that need to track temperatures in real time. The SPI interface also gives you options for how to communicate and lets you add multiple devices to the same bus, so it can be used for multi-sensor applications.

Overall, the TMP125AIDBVR’s SPI compatibility, small SOT23-6 package, and accurate temperature measurement make it a flexible option for a wide range of applications, such as communication, computer, consumer, environmental, industrial, and instrumentation systems. It uses little power and has a wide range of supply voltages, which makes it even better for low-power and portable apps.

Key Features and Specifications

The TMP125AIDBVR temperature monitor has a number of important features and specs that make it versatile and effective. Here are some of the most important parts and features of the TMP125AIDBVR

Temperature Measurement Accuracy

  • The TMP125AIDBVR can measure temperatures between -25°C and +85°C with a precision of 2°C. This amount of accuracy makes sure that temperature monitoring in this range is accurate and reliable.
  • The TMP125AIDBVR can measure temperatures from -40°C to +125°C with an accuracy of 2.5°C over a wider range of temperatures. Because it is more accurate, it can be used for applications that need to keep track of temperature in harsher circumstances.

No External Components Required

  • The TMP125AIDBVR is a temperature monitor that has everything built in and doesn’t need any extra parts to work. This feature makes the circuit design easier and reduces the number of parts, which saves money and room.

Low Supply Current

  • The TMP125AIDBVR is made to use little power, so it can be used in low-power apps and systems that save energy.
  • The exact source current specs may change depending on how the device is used, but in general, the TMP125AIDBVR uses a small amount of current. This helps save power and extend the life of batteries in portable devices.

Wide Supply Voltage Range

  • The TMP125AIDBVR can work with a wide range of power supplies, from 2.7V to 5.5V. Because of this, it can be powered by a variety of sources, such as batteries or the usual voltages used to power electronic systems.
  • The TMP125AIDBVR is more compatible with different microcontrollers and other devices because it has a wide source voltage range. This gives system integration more options.
  • The TMP125AIDBVR is a great choice for a wide range of uses because it can measure temperature accurately and doesn’t need any extra parts. It also has a low supply current and a wide supply voltage range. The TMP125AIDBVR gives you accurate temperature tracking for consumer electronics, industrial systems, or environmental monitoring.

Electrical Characteristics

Supply Voltage Range and Recommended Operating Conditions

  • The suggested supply voltage range for the TMP125AIDBVR is 2.7V to 5.5V. It can be powered by a number of different things, such as batteries or the standard voltages used in electrical systems.
  • To get accurate and reliable temperature readings, it’s important to stay within the range of supply voltage that was given.

Power Consumption and Current Draw

  • The TMP125AIDBVR is made to use little power, so it can be used in low-power systems and systems that save energy.
  • The TMP125AIDBVR can use different amounts of power and draw different amounts of current based on things like operating temperature, supply voltage, and measurement frequency.
  • It is best to look at the TMP125AIDBVR’s datasheet or technical documentation to find out how much power it uses in different situations.

Noise and Voltage Reference Specifications:

  • The TMP125AIDBVR has good noise performance, so it reduces interference and makes sure temperature readings are accurate.
  • There is no need for an external voltage reference component because the sensor has an internal voltage reference.
  • Usually, the datasheet or technical documentation for the TMP125AIDBVR has the specs for the voltage reference, such as how accurate and stable it is.

If you want to know the exact electrical properties of the TMP125AIDBVR, you should look at the manufacturer’s datasheet or technical documents. The datasheet will tell you the exact values and performance specs for the sensor under different working conditions. This will help you figure out how the sensor will work electrically and how well it will work in your application.

Temperature Measurement and Calibration

Temperature Measurement Principles

  • The TMP125AIDBVR sensor uses the idea that the voltage output of a temperature-sensitive diode can be used to measure temperature. A built-in analog-to-digital converter (ADC) in the sensor turns the voltage that changes with temperature into a digital number.
  • The temperature-sensitive diode has been carefully made to show a known and exact link between temperature and voltage. By looking at the voltage output, the sensor can figure out the temperature very closely.

Calibration Methods

  • The TMP125AIDBVR is calibrated at the factory to give exact readings of temperature. But in some uses or situations, you may need to calibrate the sensor to make it even more accurate.
  • The two-point measuring method is one that is often used. In this method, the sensor is exposed to two known temperatures, and the measured values are compared to the predicted values. Based on the deviation, an offset and gain correction can be made to the sensor’s output to bring it closer to the predicted values.

Frequently Asked Questions (FAQs) about the TMP125AIDBVR

● Can the TMP125AIDBVR be used with a different transmission protocol than SPI?

No, the TMP125AIDBVR was made to work with the SPI protocol and cannot be used directly with other transmission protocols.

● Can I use the TMP125AIDBVR in systems that run on batteries?

Yes, the TMP125AIDBVR can be used in battery-powered systems because it has a wide supply voltage range and low supply current. It helps save power and makes the battery last longer.

● Is the TMP125AIDBVR good for places with hot temperatures?

With a precision range of -40°C to +125°C, the TMP125AIDBVR can work in places with high temperatures. But it’s important to manage heat properly and keep in mind the working conditions listed in the datasheet.

● Can I connect more than one TMP125AIDBVR sensor to the same SPI bus in a chain?

Yes, the SPI interface lets you connect more than one device to the same bus by giving each sensor its own chip selects (CS) signal. This lets various sensors measure the temperature at the same time.

● Can the TMP125AIDBVR sensor be re-calibrated?

Even though the TMP125AIDBVR is calibrated at the plant, it is possible to do more calibration if needed. Using known temperature references, the two-point calibration method can be used to adjust the sensor’s values.


In conclusion, the TMP125AIDBVR temperature sensor stands out because it can measure temperatures accurately, is small, works with SPI, uses little power, and can work with a wide range of input voltages. Because it has these features, it is an excellent and reliable choice for monitoring temperature in a wide range of applications and businesses. Don’t miss out on what the TMP125AIDBVR can do for you. Get your TMP125AIDBVR from ICRFQ today and use it in your projects to get the most out of accurate temperature reading.

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