The AD8390 fully differential amplifier is available in a thermally enhanced lead frame chip scale package (LFCSP-16) and a 16-lead QSOP/EP. Significant control and flexibility in bias current have been designed into the AD8390. The four power modes are controlled by two digital bits, PWDN (1,0) which provide three levels of driver bias and one powered-down state. In addition, the IADJ pin can be used for fine quiescent current trimming to tailor the performance of the AD8390.