MAX445

The MAX445 is a high-performance, monolithic, variablegain transconductance amplifier with a high-voltage open-collector output capable of directly driving a video display (CRT cathode). A 2.5ns rise time is achieved using a peaking network with a 200½ load resistor and an 8pF total load (CRT and parasitic capacitance).

Differential inputs and a linear adjustable gain stage with an output offset adjustment make the versatile MAX445 well suited for many video display applications. A buffered bandgap reference voltage is available for the gain contrast) and offset adjustments along with a TTL BLANK input to turn off the output current, independent of signal input.

The MAX445 is available in a 24-pin power-tab DIP package. A suitable heatsink must be attached to maintain the junction temperature within the recommended operating range.