LM336BZ-2.5/LFT1

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PMIC - Voltage Reference is a type of integrated circuit (IC) used to control the reference voltage in circuits that require a precise and stable output voltage. The LM336BZ-2.5/LFT1 is a precision two-terminal adjustable voltage reference with a temperature coefficient of 2.5 ppm/°C, and is a common example of this type of device. Here we will discuss its application field and working principle.

Application Field

The LM336BZ-2.5/LFT1 is especially well-suited as a reference in temperature-sensitive, high-accuracy applications, including precision bandgap and biasing circuits, active filters, instrumentation amplifiers, precision operational amplifiers, and voltage-to-frequency converters. It is also an excellent choice for automated test equipment (ATE) reference requirements, as well as low-cost, precision, battery backup supplies.

The LM336BZ-2.5/LFT1 device package is a hermetically sealed, axial-lead, TO-92 plastic package, allowing the device to be used in a variety of orientations. This makes it ideal for surface-mount applications, since it does not require any special hardware for mounting. Other features of the LM336BZ-2.5/LFT1 include a wide operating temperature range (– 55°C to +125°C), low supply current (2.5 mA max), low output impedance (0.1 Ω typical), and an adjustable output range from 2.495 V to 36 V.

Working Principle

The LM336BZ-2.5/LFT1 device operates according to a simple design principle. It consists of a high-gain voltage reference amplifier, which is responsible for providing a stable and accurate output voltage, and a pair of control pins. The input voltage is applied to the reference pin, with the output voltage being determined by the control voltage applied to the control pin (once the reference voltage is set). The control voltage can be adjusted externally (with an external voltage divider), or by using the built-in internal temperature coefficient.

The LM336BZ-2.5/LFT1 voltage reference is stable over full temperature and is self-compensating for temperature drift. This makes it well-suited for precise applications where temperature stability is required. Furthermore, the LM336BZ-2.5/LFT1 voltage reference has the added advantage of being low-noise and low-leakage, making it ideal for use in audio and radio frequency (RF) applications.

In summary, the LM336BZ-2.5/LFT1 voltage reference is an ideal choice for a wide range of applications that require precision and stability. It is easy to use, has a wide operating temperature range, and is relatively low-cost. Furthermore, its low noise, low leakage, and low supply current make it well-suited for audio and RF applications. As such, it is an excellent choice for virtually any circuit design requiring a precise and stable reference voltage.

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