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OP179 Scheda tecnica(PDF) 1 Page - Analog Devices |
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OP179 Scheda tecnica(HTML) 1 Page - Analog Devices |
1 / 16 page PIN CONFIGURATIONS a Rail-to-Rail High Output Current Operational Amplifiers OP179/OP279 GENERAL DESCRIPTION The OP179 and OP279 are rail-to-rail, high output current, single-supply amplifiers. They are designed for low voltage applications that require either current or capacitive load drive capability. The OP179/OP279 can sink and source currents of ±60 mA (typical) and are stable with capacitive loads to 10 nF. Applications that benefit from the high output current of the OP179/OP279 include driving headphones, displays, transform- ers and power transistors. The powerful output is combined with a unique input stage that maintains very low distortion with wide common-mode range, even in single supply designs. The OP179/OP279 can be used as a buffer to provide much greater drive capability than can usually be provided by CMOS outputs. CMOS ASICs and DAC often have outputs that can swing to both the positive supply and ground, but cannot drive more than a few milliamps. Bandwidth is typically 5 MHz and the slew rate is 3 V/ µs, making these amplifiers well suited for single supply applications that require audio bandwidths when used in high gain configurations. Operation is guaranteed from voltages as low as 4.5 V, up to 12 V. Very good audio performance can be attained when using the OP179/OP279 in 5 volt systems. THD is below 0.01% with a 600 Ω load, and noise is a respectable 21 nV/√Hz. Supply current is less than 3.5 mA per amplifier. The single OP179 is available in the 5-lead SOT-23-5 package. It is specified over the industrial (–40 °C to +85°C) tempera- ture range. The OP279 is available in 8-lead TSSOP and SO-8 surface mount packages. They are specified over the industrial (–40 °C to +85 °C) temperature range. 8-Lead SOIC and TSSOP SO-8 (S) and RU-8 1 2 3 4 8 7 6 5 OP279 IN A V +IN A OUT B IN B V+ +IN B OUT A FEATURES Rail-to-Rail Inputs and Outputs High Output Current: 60 mA Single Supply: 5 V to 12 V Wide Bandwidth: 5 MHz High Slew Rate: 3 V/ s Low Distortion: 0.01% Unity-Gain Stable No Phase Reversal Short-Circuit Protected Drives Capacitive Loads: 10 nF APPLICATIONS Multimedia Telecom DAA Transformer Driver LCD Driver Low Voltage Servo Control Modems FET Drivers 5-Lead SOT-23-5 (RT-5) 1 2 3 5 4 IN A +IN A V– OUT A OP179 V+ 8-Lead SOIC (S Suffix) 1 2 3 4 8 7 6 5 OP179 IN A V +IN A V+ OUT A NC NC NC NC = NO CONNECT REV. G 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. 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 © Analog Devices, Inc., 2002 |
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Descrizione simile - OP179_02 |
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