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AD8012ARMZ Folha de dados(PDF) 1 Page - Analog Devices |
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AD8012ARMZ Folha de dados(HTML) 1 Page - Analog Devices |
1 / 16 page REV. B 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. 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: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. AD8012* Dual 350 MHz Low Power Amplifier *Protected under U.S. Patent Number 5,537,079. FEATURES Low Power 1.7 mA/Amplifier Supply Current Fully Specified for 5 V and +5 V Supplies High Output Current, 125 mA High Speed 350 MHz, –3 dB Bandwidth (G = +1) 150 MHz, –3 dB Bandwidth (G = +2) 2,250 V/ s Slew Rate 20 ns Settling Time to 0.1% Low Distortion –72 dBc Worst Harmonic @ 500 kHz, RL = 100 –66 dBc Worst Harmonic @ 5 MHz, RL = 1 k Good Video Specifications (RL = 1 k , G = +2) 0.02% Differential Gain Error 0.06 Differential Phase Error Gain Flatness 0.1 dB to 40 MHz 60 ns Overdrive Recovery Low Offset Voltage, 1.5 mV Low Voltage Noise, 2.5 nV/ √Hz Available in 8-Lead SOIC and 8-Lead MSOP APPLICATIONS XDSL, HDSL Line Drivers ADC Buffers Professional Cameras CCD Imaging Systems Ultrasound Equipment Digital Cameras FUNCTIONAL BLOCK DIAGRAM 8 7 6 5 1 2 3 4 OUT1 –IN1 +IN1 +VS OUT2 –IN2 +IN2 –VS AD8012 PRODUCT DESCRIPTION The AD8012 is a dual, low power, current feedback amplifier capable of providing 350 MHz bandwidth while using only 1.7 mA per amplifier. It is intended for use in high frequency, wide dynamic range systems where low distortion and high speed are essential and low power is critical. With only 1.7 mA of supply current, the AD8012 also offers exceptional ac specifications such as 20 ns settling time and 2,250 V/ µs slew rate. The video specifications are 0.02% differ- ential gain and 0.06 degree differential phase, excellent for such a low power amplifier. In addition, the AD8012 has a low offset of 1.5 mV. The AD8012 is well suited for any application that requires high performance with minimal power. The product is available in standard 8-lead SOIC or MSOP packages and operates over the industrial temperature range –40 °C to +85°C. RL – –40 –90 10 1k 100 –70 –80 –60 –50 G = +2 VOUT = 2V p-p RF = 750 THIRD SECOND Figure 1. Distortion vs. Load Resistance, VS = ±5V, Frequency = 500 kHz AMP 1 VIN VREF R2 R1 RL = 100 OR 135 VOUT Np:Ns TRANSFORMER LINE POWER IN dB +VS + – –VS + – Figure 2. Differential Drive Circuit for XDSL Applications |
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