The OPA2662 is a versatile driver device for ultrawide-bandwidth systems, including high-resolutionvideo, RF and IF circuitry, communications and testequipment. The OPA2662 includes two power voltage-controlled current sources, or operationaltransconductance amplifiers (OTAs), in a 16-pin DIPor SOL-16 package and is specified for the extendedindustrial temperature range (–40°C to +85°C). Theoutput current is zero-for-zero differential input voltage.The OTAs provide a 250MHz large-signal bandwidth,a 58mA/ns slew rate, and each current sourcedelivers up to ±75mA output current.The transconductance of both OTAs can be adjustedbetween pin 5 and –VCC by an external resistor,allowing bandwidth, quiescent current, harmonic distortionand gain trade-offs to be optimized. The outputcurrent can be set with a degeneration resistorbetween the emitter and GND. The current mirrorratio between the collector and emitter currents isfixed to three. Switching stages compatible to logicTTL levels make it possible to turn each OTA separatelyon within 30ns and off within 200ns at fullpower.