Overview
The TMP04FS-REEL, produced by Analog Devices Inc., is a monolithic temperature detector that generates a modulated serial digital output proportional to the temperature of the device. This component integrates an onboard temperature sensor, a voltage reference, and a precision digital modulator, providing a ratiometric encoding format that is independent of clock drift errors. The TMP04 is designed for high accuracy and reliability in temperature measurement, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Accuracy (Temperature Error) | - | TA = 25°C | 1.0 | 3.0 | - | °C |
| - | - | -25°C < TA < +100°C | 1.5 | 4.0 | - | °C |
| - | - | -40°C < TA < -25°C | 2.0 | 5.0 | - | °C |
| Temperature Linearity | - | - | - | 0.5 | - | °C |
| Long-Term Stability (1000 Hours at 125°C) | - | - | - | 0.5 | - | °C |
| Nominal Mark-Space Ratio (T1/T2) at TA = 0°C | - | - | - | 58.8% | - | % |
| Nominal T1 Pulsewidth (T1) | - | - | - | 10 ms | - | ms |
| Power Supply Rejection Ratio (PSRR) Over Rated Supply | - | TA = 25°C | 0.7 | 1.2 | - | °C/V |
| Output High Voltage (VOH) | - | IOH = 800 µA | - | V+ –0.4 V | - | V |
| Output Low Voltage (VOL) | - | IOL = 800 µA | - | 0.4 V | - | V |
| Digital Output Capacitance (COUT) | - | - | - | 15 pF | - | pF |
| Fall Time (tHL) | - | See Test Load | - | 200 ns | - | ns |
| Rise Time (tLH) | - | See Test Load | - | 160 ns | - | ns |
Key Features
- High Accuracy: The TMP04 offers an accuracy of ±1.5°C (typical) from –25°C to +100°C, ensuring reliable temperature measurements.
- Digital Output: The component provides a CMOS/TTL compatible digital output, facilitating easy interface with most microprocessors.
- Temperature Linearity: Excellent transducer linearity with a temperature linearity of 0.5°C.
- Long-Term Stability: Maintains stability over time, with a long-term stability of 0.5°C after 1000 hours at 125°C.
- Power Supply Rejection Ratio (PSRR): Offers a PSRR of 0.7 to 1.2 °C/V over the rated supply, ensuring minimal impact from supply voltage variations.
- Package and Mounting: Available in an 8-pin SOP (Small Outline Package) and is surface mountable.
Applications
The TMP04FS-REEL is versatile and can be used in various applications, including:
- Industrial Automation: For precise temperature monitoring in industrial control systems.
- Medical Devices: In medical equipment where accurate temperature measurement is critical.
- Aerospace and Defense: For temperature sensing in harsh environments.
- Consumer Electronics: In devices such as thermostats, HVAC systems, and other consumer appliances.
- Automotive Systems: For temperature monitoring in automotive electronics.
Q & A
- What is the accuracy of the TMP04FS-REEL temperature sensor?
The TMP04FS-REEL has an accuracy of ±1.5°C (typical) from –25°C to +100°C. - What type of output does the TMP04FS-REEL provide?
The TMP04FS-REEL provides a CMOS/TTL compatible digital output. - What is the temperature linearity of the TMP04FS-REEL?
The temperature linearity is 0.5°C. - How stable is the TMP04FS-REEL over long-term use?
The component maintains a long-term stability of 0.5°C after 1000 hours at 125°C. - What is the power supply rejection ratio (PSRR) of the TMP04FS-REEL?
The PSRR is 0.7 to 1.2 °C/V over the rated supply. - What is the package type and mounting method of the TMP04FS-REEL?
The TMP04FS-REEL is available in an 8-pin SOP package and is surface mountable. - Can the TMP04FS-REEL be used in harsh environments?
Yes, it is suitable for use in harsh environments due to its robust design and stability. - Is the TMP04FS-REEL compatible with most microprocessors?
Yes, the digital output is CMOS/TTL compatible, making it easily interfaced with most popular microprocessors. - What are some common applications of the TMP04FS-REEL?
Common applications include industrial automation, medical devices, aerospace and defense, consumer electronics, and automotive systems. - Is the TMP04FS-REEL still in production?
No, the TMP04FS-REEL is no longer manufactured, but substitutes or alternative package types may be available.
