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OPA3680 Datasheet(PDF) 1 Page - Texas Instruments |
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OPA3680 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page Dual Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable DESCRIPTION The OPA2681 sets a new level of performance for broadband dual current feedback op amps. Operating on a very low 6mA/ch supply current, the OPA2681 offers a slew rate and output power normally associated with a much higher supply current. A new output stage architecture delivers a high output current with minimal voltage headroom and crossover distortion. This gives exceptional single supply operation. Using a single +5V supply, the OPA2681 can deliver a 1V to 4V output swing with over 100mA drive current and 150MHz bandwidth. This combination of features makes the OPA2681 an ideal RGB line driver or single supply ADC input driver. OPA2681 FEATURES q WIDEBAND +5V OPERATION: 225MHz (G = +2) q UNITY GAIN STABLE: 280MHz (G = 1) q HIGH OUTPUT CURRENT: 150mA q OUTPUT VOLTAGE SWING: ±4.0V q HIGH SLEW RATE: 2100V/ µs q LOW SUPPLY CURRENT: 6mA/ch q LOW DISABLED CURRENT: 200 µA/ch q ENABLE/DISABLE TIME: 25ns/100ns APPLICATIONS q xDSL LINE DRIVER q MATCHED I/Q CHANNEL AMPLIFIER q BROADBAND VIDEO BUFFERS q HIGH SPEED IMAGING CHANNELS q PORTABLE INSTRUMENTS q DIFFERENTIAL ADC DRIVERS q ACTIVE FILTERS q WIDEBAND INVERTING SUMMING The OPA2681’s low 6mA/ch supply current is precisely trimmed at 25 °C. This trim, along with low drift over temperature, guaran- tees lower guaranteed maximum supply current than competing products. System power may be further reduced by using the optional disable control pin (SO-14 only). Leaving this disable pin open, or holding it high, gives normal operation. If pulled low, the OPA2681 supply current drops to less than 400 µA while the output goes into a high impedance state. This feature may be used for either power savings or for video MUX applications. Copyright © 1997, Texas Instruments Incorporated SBOS091A Printed in U.S.A. January, 2001 Single Supply ADSL Upstream Driver 100 Ω 2k Ω 2k Ω 1 µF 12.4 Ω 100 Ω 2Vp-p 324 Ω 324 Ω 1/2 OPA2681 1/2 OPA2681 +12V 1:2 15Vp-p 12.4 Ω +6.5V OPA2681 RELATED PRODUCTS SINGLES DUALS TRIPLES Voltage Feedback OPA680 OPA2680 OPA3680 Current Feedback OPA681 OPA2681 OPA3681 Fixed Gain OPA682 OPA2682 OPA3682 OPA2681 OPA2681 TM www.ti.com |
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