Low Power, High Output Current Differential Amplifier Data Sheet AD8390A FEATURES FUNCTIONAL BLOCK DIAGRAM VCC Voltage feedback amplifier Ideal for ADSL and ADSL2+ central office (CO) and AD8390A INP customer premises equipment (CPE) applications OUTN Enables high current differential applications VCC 56k 56k Low power operation Single- or dual-supply operation from 10 V ( 5 V) up to 24 V ( 12 V) VCOM 5.5 mA total quiescent supply current for full power ADSL 56k VEE 56k and ADSL2+ CO applications OUTP Adjustable supply current to minimize power INN consumption VEE High output voltage and current drive 400 mA peak output drive current Figure 1. 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/s differential slew rate 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 PD1, providing three levels of driver bias and one power-down differential amplifier. It is particularly well suited for the central state. In addition, the IADJ pin is available for fine quiescent office (CO) driver interface in digital subscriber line systems current trimming to tailor the performance of the AD8390A. such as ADSL and ADSL2+. In full bias operation, the driver The low power consumption, high output current, high output delivers 20.4 dBm output power into low resistance loads while voltage swing, and robust thermal packaging enable the compensating for hybrid and transformer insertion losses and AD8390A to be used as the central office line driver in ADSL, back termination resistors. ADSL2+, and proprietary xDSL systems, as well as in other high The AD8390A is available in a thermally enhanced LFCSP current applications requiring a differential amplifier. package (16-lead LFCSP). Significant control and flexibility in bias current have been designed into the AD8390A. Four power modes are selectable via two digital inputs, PD0 and Rev. 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Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 07094-002AD8390A Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Test Circuits ........................................................................................8 Applications ....................................................................................... 1 Theory of Operation .........................................................................9 Functional Block Diagram .............................................................. 1 Applications Information .............................................................. 10 General Description ......................................................................... 1 Supplies, Grounding, and Layout ............................................. 10 Revision History ............................................................................... 2 VCOM Pin .................................................................................. 10 Specifications ..................................................................................... 3 Power Management.................................................................... 10 Absolute Maximum Ratings ............................................................ 4 ADSL and ADSL2+ Applications ............................................. 11 Thermal Resistance ...................................................................... 4 Lightning and AC Power Fault ................................................. 11 Maximum Power Dissipation ..................................................... 4 Outline Dimensions ....................................................................... 12 ESD Caution .................................................................................. 4 Ordering Guide .......................................................................... 12 Pin Configuration and Function Descriptions ............................. 5 Typical Performance Characteristics ............................................. 6 REVISION HISTORY 5/2016Rev. B to Rev. C Changed CP-16-4 to CP-16-23 ................................... Throughout Change to Table 3 ............................................................................. 4 Changes to Figure 3 .......................................................................... 5 Updated Outline Dimensions ....................................................... 12 Changes to Ordering Guide .......................................................... 12 2/2013Revision B: Initial Version Rev. C Page 2 of 12