LM235DT Analog Temperature Sensor IC in TO-92 Package ?C National Semiconductor

LM235DT Overview

The LM235DT is a precision temperature sensor designed for accurate temperature measurement and monitoring in industrial and commercial applications. This semiconductor-based sensor provides a linear output proportional to temperature, enabling straightforward integration with analog-to-digital converters and control systems. Engineered for stability and reliability, it operates over a wide temperature range with minimal calibration requirements. Its compact SOT-23 package ensures ease of installation in space-constrained environments. The device is suitable for temperature sensing, compensation, and control functions, making it a versatile choice for engineers and sourcing specialists seeking consistent thermal measurement performance. For more detailed specifications, visit IC Üreticisi.

LM235DT Technical Specifications

Parametre	Şartname
Sıcaklık Aralığı	-40?? C ila +125?? C
Çıkış Gerilimi	10 mV/??C
Besleme Gerilimi	4 V to 30 V
Çalışma Akımı	0.4 mA (typical)
Paket Tipi	SOT-23 (LM235DT)
Doğruluk	??2??C (typical at 25??C)
Doğrusallık	??1??C over full temperature range
Çıkış Empedansı	Low, suitable for direct ADC interfacing

LM235DT Key Features

• Geniş Çalışma Sıcaklığı Aralığı: Supports sensing from -40??C to +125??C, enabling use in diverse industrial environments.
• Linear Voltage Output: Provides a direct 10 mV/??C output, simplifying signal processing and system integration.
• Düşük Besleme Akımı: Operates typically at 0.4 mA, reducing power consumption in battery-powered or low-power applications.
• Compact SOT-23 Packaging: Facilitates easy PCB layout and installation in space-restricted designs.

Tipik Uygulamalar

• Industrial temperature monitoring systems requiring precise, stable sensing over a broad thermal range.
• Temperature compensation in semiconductor circuits and analog signal conditioning.
• Environmental sensing in HVAC control units to maintain optimal operational conditions.
• Embedded temperature measurement in portable and handheld electronic devices.

LM235DT Advantages vs Typical Alternatives

This temperature sensor offers a precise linear output with low supply current, distinguishing it from typical thermistors and other analog sensors. Its wide operating voltage and temperature range provide enhanced flexibility for integration. The SOT-23 package supports compact system designs, while the inherent device stability reduces calibration efforts, delivering reliable performance where accuracy and efficiency are critical.

LM235DT Brand Info

The LM235DT is a silicon bandgap temperature sensor produced under industry-standard quality controls by multiple semiconductor manufacturers, widely recognized for its precision and reliability. This device belongs to a family of analog temperature sensors known for providing linear voltage outputs proportional to temperature, facilitating easy interface with microcontrollers and data acquisition systems. The LM235DT??s robust design and proven performance make it a preferred choice in industrial and commercial temperature sensing applications.

SSS

What is the typical output voltage of the LM235DT at room temperature?

The LM235DT typically outputs 10 mV per degree Celsius. At room temperature (around 25??C), the output voltage is approximately 250 mV, providing a linear voltage that directly corresponds to the ambient temperature.

What supply voltage range can the LM235DT operate within?

This sensor can operate over a broad supply voltage range from 4 V to 30 V, allowing compatibility with various power systems and ensuring stable operation in different circuit environments.

How accurate is the LM235DT over its operating temperature range?

The device offers typical accuracy of ??2??C at 25??C, with linearity maintained within ??1??C across the full temperature range from -40??C to +125??C, making it suitable for precision temperature measurement.

Is the LM235DT suitable for battery-powered applications?

Yes, due to its low operating current of approximately 0.4 mA, the LM235DT is well-suited for battery-powered and portable applications where power efficiency is important.

What packaging format does the LM235DT come in, and how does it benefit system design?

The LM235DT is available in a compact S