Analog Devices Inc. presents the LT3092IST – Precision Current Source

The LT3092IST is a state-of-the-art product from Analog Devices Inc., designed to provide a precise, programmable current source with a wide range of applications. This innovative component is part of the LT3092 series and is housed in a compact SOT-223 package, making it suitable for space-constrained applications.

At the heart of the LT3092IST is a unique design that allows for easy programmability of the output current from 0.5µA to 200mA without the need for any external sense resistors. The current setting is achieved through the use of one or two resistors connected to the SET pin, providing users with a simple and flexible solution for current control.

The device operates with a high level of accuracy, featuring a typical temperature coefficient of only 20ppm/°C and a maximum of 50ppm/°C, ensuring consistent performance over a wide temperature range. Its precision is further enhanced by a low dropout voltage of merely 350mV at 200mA, which allows for efficient operation even at low input to output voltage differentials.

The LT3092IST is also designed with reliability in mind. It includes thermal overload protection that shuts down the output if the safe operating temperature is exceeded, thereby protecting the device and the application from damage due to overheating. Additionally, the current source is stable with capacitive loads up to 1000pF, which is a significant advantage in applications where load conditions may vary.

Applications for the LT3092IST are diverse and include battery charging, power supply control, LED driving, and biasing for analog circuits. Its ability to provide a stable and precise current makes it an ideal choice for calibration equipment, test systems, and sensor excitation.

Overall, the LT3092IST from Analog Devices Inc. is a versatile and reliable component that offers designers a simple yet powerful tool for current sourcing needs. Its precision, programmability, and robustness make it a valuable addition to a wide array of electronic systems.