AD8390A

Data Sheet Low Power, High Output Current Differential Amplifier AD8390A FEATURES Voltage feedback amplifier Ideal for ADSL and ADSL2+ central office (CO) and customer premises equipment (CPE) applications Enables high current differential applications Low power operation Single- or dual-supply operation from 10 V (± 5 V) up to 24 V (± 12 V) 5.5 mA total quiescent supply current for full power ADSL and ADSL2+ CO applications Adjustable supply current to minimize power consumption High output voltage and current drive 400 mA peak output drive current 44 V p-p differential output voltage Low distortion −70 dBc MTPR, 26 kHz to 1.1 MHz −65 dBc MTPR, 1.1 MHz to 2.2 MHz High speed: 260 V/μs differential slew rate FUNCTIONAL BLOCK DIAGRAM VCC INP AD8390A VCC 56kΩ 56kΩ OUTN VCOM 56kΩ VEE 56kΩ OUTP INN VEE Figure 1. 07094-002 APPLICATIONS ADSL/ADSL2+ CO and CPE line drivers xDSL line drivers High current differential amplifiers GENERAL DESCRIPTION The AD8390A is a high output current, low power consumption differential amplifier. It is particularly well suited for the central office (CO) driver interface in digital subscriber line systems such as ADSL and ADSL2+. In full bias operation, the driver delivers 20.4 dBm output power into low resistance loads while compensating for hybrid and transformer insertion losses and back termination resistors. The AD8390A is available in a thermally enhanced LFCSP package (16-lead LFCSP). Significant control and flexibility in bias...