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OPA693IDR Datasheet(PDF) 1 Page - Burr-Brown (TI) |
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OPA693IDR Datasheet(HTML) 1 Page - Burr-Brown (TI) |
1 / 25 page OPA6 93 OPA6 93 OPA693 SBOS285 – OCTOBER 2003 www.ti.com DESCRIPTION The OPA693 provides an easy to use, broadband, fixed gain buffer amplifier. Depending on the external connections, the internal resistor network may be used to provide either a fixed gain of +2 video buffer or a gain of ±1 voltage buffer. Operating on a low 13mA supply current, the OPA693 offers a slew rate (2500V/ µs) and bandwidth (> 700MHz) normally associated with a much higher supply current. A new output stage architecture delivers high output current with a minimal headroom and crossover distortion. This gives exceptional single-supply operation. Using a single +5V supply, the OPA693 can deliver a 2.5VPP swing with over 90mA drive current and 500MHz bandwidth at a gain of +2. This combi- nation of features makes the OPA693 an ideal RGB line driver or single-supply undersampling Analog-to-Digital Con- verter (ADC) input driver. The OPA693’s low 13mA supply current is precisely trimmed at 25 °C. This trim, along with low drift over temperature, ensures lower maximum supply current than competing products that report only a room temperature nominal supply current. System power may be further reduced by using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, gives normal operation. This optional dis- able allows the OPA693 to fit into existing video buffer layouts where the disable pin is unconnected to get improved performance with no board changes. If pulled LOW, the OPA693 supply current drops to less than 170 µA while the output goes into a high impedance state. This feature may be used for power savings. The low gain stable current-feedback architecture used in the OPA693 is particularly suitable for high full-power bandwidth cable driving requirements. Where the additional flexibility of an op amp is required, consider the OPA695 ultra-wideband current feedback op amp. Where a unity gain stable voltage feedback op amp with very high slew rate is required, consider the OPA690. FEATURES q VERY HIGH BANDWIDTH (G = +2): 700MHz q FLEXIBLE SUPPLY RANGE: +5V to +12V Single Supply ±2.5V to ±6V Dual Supplies q INTERNALLY FIXED GAIN: +2 or ±1 q LOW SUPPLY CURRENT: 13mA q LOW DISABLED CURRENT: 120 µA q HIGH OUTPUT CURRENT: ±120mA q OUTPUT VOLTAGE SWING: ±4.1V q SOT23-6 AVAILABLE Copyright © 2002-2003, Texas Instruments Incorporated Ultra-Wideband, Fixed Gain Video BUFFER AMPLIFIER with Disable Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. APPLICATIONS q BROADBAND VIDEO LINE DRIVERS q MULTIPLE LINE VIDEO DA q PORTABLE INSTRUMENTS q ADC BUFFERS q HIGH FREQUENCY ACTIVE FILTERS q HFA1112 IMPROVED DROP-IN OPA693 RELATED PRODUCTS SINGLES DUALS TRIPLES Voltage Feedback OPA690 OPA2690 OPA3690 Current Feedback OPA691 OPA2691 OPA3691 Fixed Gain OPA692 — OPA3692 > 900MHz OPA695 — — 75 Ω Video Out Video Out 75 Ω RG-59 75 Ω 75 Ω RG-59 75 Ω 300 Ω 300 Ω 1 2 3 4 8 7 6 5 DIS OPA693 SO-8 G = +2 700MHz, 2-Output Component Video DA +5V −5V Video In PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. All trademarks are the property of their respective owners. |
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