OPA2662

The OPA2662 is a versatile driver device for ultra wide-bandwidth systems, including high-resolution video, RF and IF circuitry, communications and test equipment. The OPA2662 includes two power voltage- controlled current sources, or operational transconductance amplifiers (OTAs), in a 16-pin DIP or SOL-16 package and is specified for the extended industrial temperature range (40 to +85). The output current is zero-for-zero differential input voltage.

The OPA2662 OTAs provide a 250MHz large-signal bandwidth, a 58mA/ns slew rate, and each current source delivers up to ±75mA output current.

The transconductance of both OTAs OPA2662 can be adjusted between pin 5 and V_CC by an external resistor, allowing bandwidth, quiescent current, harmonic distortion and gain trade-offs to be optimized. The output current can be set with a degeneration resistor between the emitter and GND. The current mirror ratio between the collector and emitter currents is fixed to three. Switching stages compatible to logic TTL levels make it possible to turn each OTA separately on within 30ns and off within 200ns at full power.