LT1460ACS8-10#TRPBF

PMIC - Voltage Reference

The LT1460ACS8-10#TRPBF is a precision reference and output amplifier in the Application Specific Integrated Circuit (ASIC) family of products in the Programmable Mixed-signal Integrated Circuits (PMIC) series manufactured by Linear Technology Corporation. This device is designed to provide an ultra-stable DC voltage reference with voltage drift and temperature stability suitable for even the most demanding applications. Furthermore, the LT1460ACS8-10#TRPBF is designed to provide a single-ended output current capability of up to 1 A for use with high-side current sense amplifiers and other applications requiring an output buffer with low load regulation.

Application Field:

The LT1460ACS8-10#TRPBF is an excellent choice for powering sensitive analog and mixed-signal circuits, as its 0.3 μV/°C temperature stability and 0.05mV/V drift make it highly suitable for precision current-sense applications in Automotive/Industrial systems, and also for powering potentiostat and DAC (Digital to Analogue Converter) circuits. This device is also ideal for use in medical electronics, industrial and military applications, and wherever low-noise, low-power circuitry is needed.

Working Principle:

The LT1460ACS8-10#TRPBF is based on a low-dropout regulator architecture which incorporates linear temperature-correction circuitry and an internal comparator to produce a highly stable voltage reference. The IC operates from an input voltage between 3V to 40V and requires a 0.47µF capacitor for stability and an associated RC filter network for output filtering, while the output can be adjusted to any voltage between 0.7V and 6V by providing an external voltage reference to the ‘REF’ pin.

The device also includes a separate, open-drain, internal output transistor. This transistor is used to control the load current and can be configured in a variety of ways to provide short-circuit protection, line-load sensing and load control, enabling it to be used in many applications which require a low-dropout regulator. Furthermore, the LT1460ACS8-10#TRPBF offers a very low output noise of as low as 20µV/√Hz (at 1kHz). This compares favourably to similar devices in the PMIC family and makes it an excellent choice for sensitive applications where noise reduction is important.

Advantages:

The LT1460ACS8-10#TRPBF is an excellent choice for precision voltage references and DC output buffers, due to its low noise and temperature stability. Furthermore, the device’s low-dropout regulator architecture enables the device to be used in a wide range of applications and also offers good EMI performance, making it ideal for automotive and military applications.

Conclusion:

The LT1460ACS8-10#TRPBF is an excellent choice for use in sensitive analog and mixed-signal circuits, as its low-dropout regulator architecture and the associated features enable it to provide an ultra-stable DC voltage reference with voltage drift and temperature stability suitable for even the most demanding applications. The device is suitable for use in Automotive/Industrial systems, medical electronics, industrial and military applications, and wherever low-noise, low-power circuitry is needed. It is a valuable addition to the family of PMIC voltage references.