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AD8392 Folha de dados(PDF) 1 Page - Analog Devices |
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AD8392 Folha de dados(HTML) 1 Page - Analog Devices |
1 / 16 page Low Power, High Output Current, Quad Op Amp, Dual-Channel ADSL/ADSL2+ Line Driver AD8392 Rev. A 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 rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2005 Analog Devices, Inc. All rights reserved. FEATURES Four current feedback, high current amplifiers Ideal for use as ADSL/ADSL2+ dual-channel Central Office (CO) line drivers Low power operation Power supply operation from ±5 V (+10 V) up to ±12 V (+24 V) Less than 3 mA/Amp quiescent supply current for full power ADSL/ADSL2+ CO applications (20.4 dBm line power, 5.5 CF) Three active power modes plus shutdown High output voltage and current drive 400 mA peak output drive current 44 V p-p differential output voltage Low distortion −72 dBc @1 MHz second harmonic −82 dBc @ 1 MHz third harmonic High speed: 900 V/µs differential slew rate Additional functionality of AD8392ACP On-chip common-mode voltage generation APPLICATIONS ADSL/ADSL2+ CO line drivers XDSL line drives High output current, low distortion amplifiers DAC output buffer GENERAL DESCRIPTION The AD8392 is comprised of four high output current, low power consumption, operational amplifiers. It is particularly well suited for the CO driver interface in digital subscriber line systems, such as ADSL and ADSL2+. The driver is capable of providing enough power to deliver 20.4 dBm to a line, while compensating for losses due to hybrid insertion and back termination resistors. In addition, the low distortion, fast slew rate, and high output current capability make the AD8392 ideal for many other applications, including medical instrumenta- tion, DAC output drivers, and other high peak current circuits. The AD8392 is available in two thermally enhanced packages, a 28-lead TSSOP/EP (AD8392ARE) and a 5 mm × 5 mm 32-lead LFCSP (AD8392ACP). Four bias modes are available via the use of two digital bits (PD1, PD0). PIN CONFIGURATIONS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NC = NO CONNECT 28 27 26 25 24 23 22 21 20 19 18 17 16 15 AD8392 PD0 1, 2 PD1 1, 2 +VIN1 NC VOUT1 –VIN1 VEE NC NC +VIN2 NC VOUT2 –VIN2 VOUT3 –VIN3 +VIN3 GND NC NC VCC –VIN4 +VIN4 VEE PD0 3, 4 PD1 3, 4 GND VCC VOUT4 1 3 2 4 Figure 1. AD8392ARE, 28-Lead TSSOP/EP NC = NO CONNECT 1 2 3 4 5 6 7 8 910 11 12 13 14 24 23 22 21 20 19 18 17 16 15 32 31 30 29 28 27 25 26 AD8392 NC VOUT1 –VIN1 NC VOUT2 –VIN2 VOUT3 –VIN3 VCC –VIN4 VCC VOUT4 NC NC NC NC 1 3 2 4 Figure 2. AD8392ACP, 32-Lead LFCSP 5 mm × 5 mm Additionally, the AD8392ACP provides VCOM pins for on-chip common mode voltage generation. The low power consumption, high output current, high output voltage swing, and robust thermal packaging enable the AD8392 to be used as the CO line drivers in ADSL and other xDSL systems, as well as other high current, single-ended or differential amplifier applications. |
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