LM385PSR-1-2

The LM385PSR-1-2 is an adjustable precision band-gap voltage reference from Texas Instruments. It is a low-cost, low-power device which is widely used for precision reference voltages in a wide range of applications including, but not limited to, automotive, consumer, industrial, and medical devices. The LM385PSR-1-2 is housed in an 8-pin PDIP package and features an adjustable output voltage range from 2.47 V to 6 V, a low quiescent current of 5 µA, and a low output voltage temperature coefficient of 1 ppm/°C. This makes it an ideal choice for a wide range of applications where temperature variations must be minimized.

The LM385PSR-1-2 is a Precision Band Gap voltage reference (PBGR), which essentially produces a precise, stable, and temperature-independent reference voltage. It achieves this stability by using a band-gap reference circuit, which is essentially an arrangement of resistors and semiconductor diodes. The resistors create a voltage divider network, while the diodes produce a voltage drop across their junction. The band-gap reference circuit then uses the voltage produced by this junction to create a stable reference voltage which is independent of temperature. The LM385PSR-1-2 is a specific implementation of this concept.

Despite its small size, the LM385PSR-1-2 features a wide range of features and benefits, which make it suitable for a wide range of different applications. Firstly, it has a wide adjustable output voltage range of 2.47 V to 6 V, which makes it suitable for applications which require a precise reference voltage but don’t require a high voltage reference. Secondly, it features a low quiescent current of just 5µA when driven full range, making it an ideal choice for battery powered applications. Thirdly, the LM385PSR-1-2 offers low output voltage temperature coefficient of just 1 ppm/°C, ensuring that the reference voltage remains stable even when exposed to temperature variations. Finally, it is housed in an 8-pin PDIP package, which allows it to be integrated into a wide range of different systems.

In conclusion, the LM385PSR-1-2 is an adjustable precision band-gap voltage reference which offers a wide range of features and benefits that make it ideally suited for a wide range of applications where precise and stable reference voltages are required. Its wide adjustable output voltage range, low quiescent current, and low voltage temperature coefficient make it an ideal choice for a wide range of different applications, from automotive to consumer and industrial devices. As such, the LM385PSR-1-2 is one of the most popular voltage references on the market today and should be considered for applications requiring precise, stable, and temperature-independent reference voltages.