LT1251CS#PBF

LT1251CS#PBF is a linear-amplifier video-amp module from Linear Technology Corporation. The device is designed to deliver up to ±100mA to the load, providing regulation and temperature compensation for a wide range of line source- and load- resistances. It can operate at up to 176V and require a modest 12V supply voltage and 6mA quiescent current.

The device is made up of two independent amplifiers, one for the primary output, and one for the secondary-buffer output. The primary output consists of a series connection of an adjustable transconductance amplifier, a mid-band gain control, and a unity gain outputs stage. This allows LT1251CS#PBF to deliver a low-noise, stable signal suitable for video applications.

The secondary-buffer output is driven by an output follower that produces a high-output current signal, which can be used, for example, for driving LEDs. The device also provides a gain control input, allowing the amplitude of the output signal to be controlled. The output signal can be adjusted using a potentiometer, or it can be programmed using an external DC control voltage.

The LT1251CS#PBF is an ideal choice for applications such as driving a colour monitor, providing a voltage source for a motor speed controller, or for lighting control. It is also suitable for applications such as LED drivers, LED lighting, LED advertising displays, and similar applications requiring high current drive.

In terms of its working principle, the LT1251CS#PBF operates by driving a load with an internally regulated and temperature compensated current, with the load being connected directly to the primary output stage. The device regulates the current through the load by varying the voltage at the output stage as the load varies, thus providing a stable current. The secondary-buffer output is driven by the primary output stage, with the output stage being adjustable by the gain control input. This allows the LT1251CS#PBF to deliver a low-noise, stable signal suitable for video applications.

In conclusion, LT1251CS#PBF is an efficient and reliable linear-amplifier video-amp module from Linear Technology Corporation, specifically designed for applications such as driving a colour monitor, providing a voltage source for a motor speed controller, or for lighting control. It provides a regulated and temperature compensated current to the load, with a secondary-buffer output driven by an adjustable output stage, allowing flexible control over the output signal.