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OPA691IDBVR Datasheet(PDF) 1 Page - Texas Instruments |
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OPA691IDBVR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 23 page OPA6 91 OPA6 91 Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable DESCRIPTION The OPA691 sets a new level of performance for broadband current feedback op amps. Operating on a very low 5.1mA supply current, the OPA691 offers a slew rate and output power normally associated with a much higher supply cur- rent. A new output stage architecture delivers a high output current with minimal voltage headroom and crossover distor- tion. This gives exceptional single-supply operation. Using a single +5V supply, the OPA691 can deliver a 1V to 4V output swing with over 150mA drive current and 190MHz band- width. This combination of features makes the OPA691 an ideal RGB line driver or single-supply Analog-to-Digital Con- verter (ADC) input driver. The OPA691’s low 5.1mA supply current is precisely trimmed at 25 °C. This trim, along with low drift over-temperature, FEATURES q FLEXIBLE SUPPLY RANGE: +5V to +12V Single-Supply ±2.5V to ±6V Dual-Supply q UNITY-GAIN STABLE: 280MHz (G = 1) q HIGH OUTPUT CURRENT: 190mA q OUTPUT VOLTAGE SWING: ±4.0V q HIGH SLEW RATE: 2100V/ µs q LOW dG/dφ: 0.07% /0.02 ° q LOW SUPPLY CURRENT: 5.1mA q LOW DISABLED CURRENT: 150 µA q WIDEBAND +5V OPERATION: 190MHz (G = +2) APPLICATIONS q xDSL LINE DRIVER q BROADBAND VIDEO BUFFERS q HIGH-SPEED IMAGING CHANNELS q PORTABLE INSTRUMENTS q ADC BUFFERS q ACTIVE FILTERS q WIDEBAND INVERTING SUMMING q HIGH SFDR IF AMPLIFIER ensures lower maximum supply current than competing products. 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. If pulled LOW, the OPA691 supply current drops to less than 150 µA while the output goes into a high impedance state. This feature may be used for power savings. OPA691 SBOS226A – DECEMBER 2001– REVISED SEPTEMBER 2002 OPA691 RELATED PRODUCTS SINGLES DUALS TRIPLES Voltage Feedback OPA690 OPA2690 OPA3690 Current Feedback OPA681 OPA2691 OPA3691 Fixed Gain OPA692 OPA3692 100 Ω 50 Ω OPA691 +5V DIS –5V V O = –(V1 + V2 + V3 + V4 + V5) 100MHz, –1dB Compression = 15dBm 50 Ω V 2 50 Ω V 3 50 Ω V 4 50 Ω V 1 50 Ω RG-58 50 Ω V 5 30 Ω 200MHz RF Summing Amplifier www.ti.com 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. Copyright © 2001, Texas Instruments Incorporated 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. |
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