LM329DZ#PBF

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The LM329DZ#PBF is a three terminal 1.241V bandgapped precision voltage reference manufactured by Texas Instruments. It is a part of the Precision Voltage Reference portfolio, which includes a range of voltage references that feature low drift, low noise, and low power components. The LM329DZ#PBF is suitable for precision systems that require a high accuracy, low current, and stable reference voltage.

This voltage reference is ideal for applications that require a stable, low-drift reference voltage such as analog-to-digital converters and comparators. It can also be used in power supply regulation circuits and sensor interface systems. The LM329DZ#PBF is a fixed 1.241V voltage reference that features an operational temperature range of -40°C to +125°C and is capable of supplying load currents as high as 5mA.

The LM329DZ#PBF works on the principle of a dual bandgap voltage reference. This type of voltage reference utilizes two interconnected series bandgap circuits to achieve a very high accuracy over a wide range of operating temperatures and pressures. The two bandgap circuits inside the voltage reference are uncoupled, meaning that the temperature coefficients do not interact and the resulting reference voltage is highly reliable.

To ensure a high degree of accuracy, the LM329DZ#PBF voltage reference incorporates several design techniques such as matched transistor pairs, dual complementary circuit architecture, and low-noise stage resistor matching. These techniques allow the device to provide an accurate fixed output voltage that is highly stable over a wide variety of operating conditions, including temperature, duty cycle, and supply voltage.

The LM329DZ#PBF can operate from a single power supply of 4.5 V to 30 V, or from dual power supplies of 4.5 V to 30 V and 4.5 V to 15 V. The output voltage is available in four versions, 1.241V, 2.50V, 2.048V, and 4.096V. The device has an output impedance of less than 10 uOhm, an accuracy of 0.3%, and a maximum load current of 5mA.

The LM329DZ#PBF voltage reference is designed for a variety of precision systems, including data acquisition systems, sensor circuitry, and power ways regulation. It offers superb accuracy over temperature and voltage while consuming very low quiescent current, making it the perfect choice for any application requiring stable and low-drift precision reference voltage.

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