LT1460DCN8-10#PBF

PMIC-Voltage Reference: LT1460DCN8-10#PBF Application Field and Working Principle

A voltage reference or voltage regulator is an electronic circuit, which provides a stable DC voltage reference over a wide range of operating conditions. The LT1460DCN8-10#PBF is a monolithic reference device produced by Linear Technology Corporation. It is designed for applications requiring a stable, low-noise precision reference output. This circuit provides a wide range of utility in communication systems, precision analog monitoring, and signal processing.

Application Field

The LT1460DCN8-10#PBF is a low-noise voltage reference ideal for use in precision instrumentation and data acquisition equipment, temperature and pressure transducers, as well as medical monitoring devices, and any application requiring a low-noise, stable voltage reference. It requires only one external capacitor to complete the reference circuit, reducing external part count and saving space.

Other potential applications of the LT1460DCN8-10#PBF include:

• Thermo-couples
• Thriac temperature control circuits
• Piezo-electric transducers
• Battery-powered instrumentation
• DC/DC converters
• Motion detectors

Working Principle

The precision voltage reference design used by the LT1460DCN8-10#PBF is based on a band gap voltage reference. The device uses an internal voltage reference circuit to provide a stable voltage over all ranges of ambient temperature and power line change, eliminating the need for external components. The output voltage is set by an internal voltage divider connected to the band gap reference.

The output voltage can be adjusted to a specific level through the use of external resistors. This adjustment is done by adding two resistors in series to the voltage reference output and the ground reference. The two resistors create a voltage-divider circuit, and by changing their values the output voltage can be adjusted to the desired setpoint.

The LT1460DCN8-10#PBF also features low noise, with a typical peak-to-peak output noise of 8 microvolts at 25 °C. This noise drift over temperature is maintained at a very low level, due to the precision temperature compensation circuit included in the design. The device also features an internal temperature sensor, which constantly monitors the temperature of the device and compensates the reference voltage for variations in temperature.

Conclusion

The LT1460DCN8-10#PBF is a high performance and low noise voltage reference from Linear Technology Corporation. It requires only one external capacitor to complete the reference circuit and offers a wide range of applications in communication systems, precision analog monitoring, and signal processing. It features low noise output and a temperature compensation circuit to maintain a very low noise level.