ANALOG DEVICES AD8390A

Low Power, High Output Current Differential Amplifier AD8390A FEATURES PIN CONFIGURATION Voltage feedback amplifier Ideal for ADSL and ADSL2+ central office (CO) and customer premises equipment (CPE) applications PIN 1 Enables high current differential applications INP 1 INDICATOR 12 OUTN Low power operation PD1 2 11 VEE AD8390A PD0 3 10 VCC Single- or dual-supply operation from 10 V (± 5 V) TOP VIEW INN 4 (Not to Scale) 9OUTP up to 24 V (± 12 V) 5.5 mA total quiescent supply current for full power ADSL NC = NO CONNECT and ADSL2+ CO applications Adjustable supply current to minimize power consumption Figure 1. Thermally Enhanced, 4 mm × 4 mm 16-Lead LFCSP High output voltage and current drive FUNCTIONAL BLOCK DIAGRAM 400 mA peak output drive current VCC 44 V p-p differential output voltage Low distortion AD8390A INP −70 dBc MTPR, 26 kHz to 1.1 MHz OUTN −65 dBc MTPR, 1.1 MHz to 2.2 MHz VCC 56kΩ High speed: 260 V/μs differential slew rate 56kΩ VCOM APPLICATIONS 56kΩ VEE 56kΩ ADSL/ADSL2+ CO and CPE line drivers OUTP xDSL line drivers INN High current differential amplifiers VEE Figure 2. GENERAL DESCRIPTION Four power modes are selectable via two digital inputs, PD0 and 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 delivers 20.4 dBm output power into low resistance loads while The low power consumption, high output current, high output compensating for hybrid and transformer insertion losses and voltage swing, and robust thermal packaging enable the back termination resistors. AD8390A to be used as the central office line driver in ADSL, 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. For more information about the AD8390A, contact Analog Devices, Inc., at Broadband.products@analog.com. Rev. SpA Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 ©2007–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 07094-002 07094-001 NC 5 16 NC 15 VCOM DGND 6 I 7 14 NC ADJ 13 NC NC 8 AD8390A NOTES ©2007–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07094-0-1/09(SpA) Rev. SpA | Page 2 of 2