Rail-to-Rail, High Output Current Amplifier

The AD8397 comprises two voltage feedback operational amplifiers capable of driving heavy loads with excellent linearity. The common-emitter, rail-to-rail output stage surpasses the output voltage capability of typical emitter-follower output stages and can swing to within 0.5 V of either rail while driving a 25 Ω load. The low distortion, high output current, and wide output dynamic range make the AD8397 ideal for applications that require a large signal swing into a heavy load.

Fabricated with Analog Devices, Inc., high speed extra fast complementary bipolar high voltage (XFCB-HV) process, the high bandwidth and fast slew rate of the AD8397 keep distortion to a minimum. The AD8397 is available in a standard 8-lead SOICN package and, for higher power dissipating applications, a thermally enhanced 8-lead SOICNEP package. Both packages can operate from −40°C to +85°C.

Applications

* Twisted-pair line drivers

* Audio applications

* General-purpose ac applications

* Dual operational amplifier

* Voltage feedback

* Wide supply range from 3 V to 24 V

* Rail-to-rail output

* Output swing to within 0.5 V of supply rails

* High linear output current

* 310 mA peak into 32 Ω on ±12 V supplies while maintaining −80 dBc SFDR