LTC1258CMS8#PBF

Introduction

LTC1258CMS8#PBF is a high accuracy, low power voltage reference with integrated features, specifically designed for precision power management applications. It is one of the most popular devices used in the PMIC - Voltage Reference category. Its mission is to provide a precisely regulated output voltage for various analog and low power digital circuits.

The Basics of LTC1258CMS8#PBF

Typical LTC1258CMS8#PBF devices generate precision reference voltages of 4.096V, 5V, 10V, 12V, and 15V. The output voltage can be adjusted between 0V and 15V. These DC sources are composed of a temperature compensated bandgap reference (TCR) and a series of networks that enable shortcut channels to ground, obtaining the desired voltage output.

Applications of LTC1258CMS8#PBF

The LTC1258CMS8#PBF is suitable for many applications, including:

• Battery voltage regulators
• Digital-to-analog converters
• Instrumentation
• Communication systems
• Automotive systems
• Analog audio
• Medical equipment

Features of LTC1258CMS8#PBF

Some of the key features of the LTC1258CMS8#PBF include:

• High precision – High accuracy at a 0.2% total error band (TEB) from -40 °C to 125 °C
• Low temperature drift – 0.9ppm/°C over the full temperature range
• High output impedance – 1MΩ typically
• High power supply rejection ratio – 80 dB over the full 20 Hz to 20 kHz frequency range

LTC1258CMS8#PBF Working Principle

The working principle of the LTC1258CMS8#PBF is based on a bandgap reference generator that is connected to a current mirror with adjustable output current. The generated voltage is stable and is then connected to an adjustable current source where the output voltage is adjusted. Finally, the voltage is output through the output pins. Because the device is based on a bandgap reference, it is extremely stable and temperature-independent. The device is optimized for low-power applications and includes a shut-down mode that allows the current source to be turned off when not needed.

Conclusion

The LTC1258CMS8#PBF is a versatile, high accuracy voltage reference suitable for many applications, including automotive, communications and medical systems. Its working principle is based on a bandgap reference and a current mirror with adjustable output current. It is optimized for low power applications and has excellent temperature performance and power supply rejection. It is a great choice for precision power management applications.