LT1389ACS8-1.25#PBF Integrated Circuits (ICs)

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The LT1389ACS8-1.25#PBF is a voltage reference, which is part of a family of voltage references offered by Linear Technology Corporation. It is a precision, low-dropout voltage reference that operates from a single 5 V supply and delivers up to 0.2 A of output current. The device exhibits excellent temperature coefficient, dynamic response, and low noise performance.

The LT1389ACS8-1.25#PBF is ideal for applications requiring precise and stable voltage outputs over a wide operating temperature range, such as instrumentation and control, process control, data acquisition, and communications. It offers improved accuracy, stability, and noise performance over competitive devices, making it the perfect choice for precision systems.

The LT1389ACS8-1.25#PBF is offered in a very small package and takes up minimal board space. It incorporates a high-precision reference circuit, a current sense amplifier and a series P-channel MOSFET. It is designed to operate from a supply voltage range from 4.75 V to 5.25 V and has positive temperature coefficient of 0.8 mV/ºC (typical).

The device is monolithic and consists of an accurated current source, an adjustable high-side current source and a low-dropout output buffer. The adjustable current source enables the user to set the output voltage of the reference to any desired value within the specified range. The precision current source also provides controlled and thermal tracking accuracy.

The LT1389ACS8-1.25#PBF\'s principle of operation is based on a high accuracy current source reference circuit. The circuit is configured to have a constant, low temperature coefficient current source. This current source is connected in series with an adjustable resistor, which allows the current source output voltage to be set by the user. The output of the reference circuit is fed to the output buffer, which is a low drop-out linear regulator and features low distortion, fast transient response and low noise performance.

The LT1389ACS8-1.25#PBF is offered in a very small SOT-23 package and it has excellent temperature characteristics, making it ideal for use in space-constrained systems. The device has low voltage noise (100μVmax) and temperature coefficient (0.8mV/ºC). The device also features short-circuit protection and is RoHS compliant.

In summary, the LT1389ACS8-1.25#PBF is an ideal solution for applications requiring precision and stable voltage reference over a wide operating temperature range. It exhibits excellent temperature coefficient, dynamic response, and low noise performance and is offered in a very small package to save space. The device is also RoHS compliant and has short-circuit protection.

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