LT1460ACS8-10#PBF

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A voltage reference typically produces a fixed and constant output voltage irrespective of the inputs and load conditions. This makes them ideal for different applications, including feedback systems and level shifting devices. The LT1460ACS8-10#PBF voltage reference (hereafter referred to as the LT1460) is a precision integrated circuit (IC) designed for high precision voltage reference purposes. It offers a wide range of features and benefits that make it suitable for various high precision voltage reference applications.

The LT1460 can provide stable output voltages over temperatures ranging from -40 °C to 85 °C. It provides very low temperature coefficients and low noise operation over the entirety of its temperature range. The LT1460 has a high precision bandgap circuit, enabling it to provide a very low temperature coefficient (0.2 ppm/°C) and excellent long-term stability (0.1 ppm/year).

The LT1460\'s output can be adjusted with an external resistor. This provides an advantage of providing flexibility in selecting a reference voltage tailored to the application. For certain applications, adjusting an output voltage can result in higher performance or enhanced noise immunity. The LT1460 can also be configured as what is known as a precision buffer, which allows it to drive up to two active loads. This is useful for applications that may require addressing multiple devices with a single reference voltage.

The LT1460 can be supplied with a wide operating range of supplies, from 2.5V to 18V. This makes the LT1460 particularly suitable for automotive and similar applications, where the supply rail can vary widely. The LT1460 is typically used in power supply and precision measurement applications, including analog-to-digital converters (ADCs), switching power supplies, and instrumentation amplifiers.

The working principle of the LT1460 is based on a bandgap reference circuit. The reference voltage is derived from the voltage drop developed across a semiconductor junction that is maintained at a temperature of absolute zero (0 Kelvin, or -273.15 °C). The voltage obtained is proportional to the temperature, meaning it will begin to deviate from its nominal value as the temperature of the junction increases.

The bandgap reference circuit imitates the tunnel effect of a PN-diode to produce a constant voltage. A differential amplifier compares the output voltage of the bandgap reference to an adjustable reference value. A negative feedback loop is then triggered when the output does not match the programmed reference voltage, which is then adjusted accordingly. This creates a precision voltage reference output, which can be tailored to suit specific application requirements.

To sum up, the LT1460ACS8-10#PBF is a precision integrated circuit designed for high precision voltage reference purposes. Its features make it suitable for a variety of applications, including power supplies, switching power supplies, analog-to-digital converters (ADCs), and instrumentation amplifiers. Its working principle is based on a bandgap reference circuit that helps to produce a constant and adjustable reference voltage.

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