Datasheet Texas Instruments OPA2691ID
| Manufacturer | Texas Instruments |
| Series | OPA2691 |
| Part Number | OPA2691ID |
Dual Wideband Current Feedback Operational Amplifier,with Disable 8-SOIC -40 to 85
Datasheets
Dual Wideband, Current-Feedback Operational Amplifier With Disable datasheet
PDF, 1.1 Mb, Revision: D, File published: Jul 2, 2008
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Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
Packaging
| Pin | 8 | 8 |
| Package Type | D | D |
| Industry STD Term | SOIC | SOIC |
| JEDEC Code | R-PDSO-G | R-PDSO-G |
| Package QTY | 75 | 75 |
| Carrier | TUBE | TUBE |
| Device Marking | OPA | 2691 |
| Width (mm) | 3.91 | 3.91 |
| Length (mm) | 4.9 | 4.9 |
| Thickness (mm) | 1.58 | 1.58 |
| Pitch (mm) | 1.27 | 1.27 |
| Max Height (mm) | 1.75 | 1.75 |
| Mechanical Data | Download | Download |
Parametrics
| 2nd Harmonic | 70 dBc |
| 3rd Harmonic | 74 dBc |
| @ MHz | 5 |
| Acl, min spec gain | 1 V/V |
| Additional Features | Shutdown |
| Architecture | Bipolar,Current FB |
| BW @ Acl | 280 MHz |
| CMRR(Min) | 52 dB |
| CMRR(Typ) | 56 dB |
| GBW(Typ) | 280 MHz |
| Input Bias Current(Max) | 35000000 pA |
| Iq per channel(Max) | 5.3 mA |
| Iq per channel(Typ) | 5.1 mA |
| Number of Channels | 2 |
| Offset Drift(Typ) | 20 uV/C |
| Operating Temperature Range | -40 to 85 C |
| Output Current(Typ) | 190 mA |
| Package Group | SOIC |
| Package Size: mm2:W x L | 8SOIC: 29 mm2: 6 x 4.9(SOIC) PKG |
| Rail-to-Rail | No |
| Rating | Catalog |
| Slew Rate(Typ) | 2100 V/us |
| Total Supply Voltage(Max) | 12 +5V=5, +/-5V=10 |
| Total Supply Voltage(Min) | 4 +5V=5, +/-5V=10 |
| Vn at 1kHz(Typ) | 1.7 nV/rtHz |
| Vn at Flatband(Typ) | 1.7 nV/rtHz |
| Vos (Offset Voltage @ 25C)(Max) | 3 mV |
Eco Plan
| RoHS | Compliant |
Design Kits & Evaluation Modules
- Evaluation Modules & Boards: DEM-OPA-SO-2D
DEM-OPA-SO-2D
Lifecycle Status: Active (Recommended for new designs) - Evaluation Modules & Boards: DEM-OPA268XN
DEM-OPA268xN: Demonstration Fixture
Lifecycle Status: Active (Recommended for new designs) - Evaluation Modules & Boards: DEM-OPA268XU
DEM-OPA268xU: Demonstration Fixture
Lifecycle Status: Active (Recommended for new designs) - Evaluation Modules & Boards: DEM-OPA-SO-2A
DEM-OPA-SO-2A
Lifecycle Status: Active (Recommended for new designs)
Application Notes
- Current Feedback Amplifiers: Review, Stability Analysis, and ApplicationsPDF, 53 Kb, File published: Nov 20, 2000
The majority of op amp circuits are closed-loop feedback systems that implement classical control theory analysis. Analog designers are comfortable with Voltage FeedBack (VFB) op amps in a closed-loop system and are familiar with the ideal op amp approximations feedback permit. This application bulletin will demonstrate how CFB op amps can be analyzed in a similar fashion. Once the closed-loop sim - Stabilizing Current-Feedback Op Amps While Optimizing Circuit PerformancePDF, 280 Kb, File published: Apr 28, 2004
Optimizing a circuit design with a current-feedback (CFB) op amp is a relatively straightforward task, once one understands how CFB op amps achieve stability. This application note explains a 2nd-order CFB model so that any designer can better understand the flexibility of the CFB op amp. This report also discusses stability analysis, the effects of parasitic components due to PCBs, optimization - Active filters using current-feedback amplifiersPDF, 227 Kb, File published: Feb 25, 2005
- Expanding the usability of current-feedback amplifiersPDF, 215 Kb, File published: Feb 28, 2005
- Wireline Data Transmission and ReceptionPDF, 191 Kb, File published: Jan 27, 2010
Many types of wires are widely used to transmit data. Specifically, Category 3 and Category 5 (Cat3 and Cat5e, respectively)—also known as unshielded twisted pair or UTP lines—are now recommended for new telephone installations. Coaxial (coax) cables are used to distribute cable television (CATV) signals throughout a home. #12 and #14 American wire gauge (AWG) electric power distribution wire is a - RLC Filter Design for ADC Interface Applications (Rev. A)PDF, 299 Kb, Revision: A, File published: May 13, 2015
As high performance Analog-to-Digital Converters (ADCs) continue to improve in their performance, the last stage interface from the final amplifier into the converter inputs becomes a critical element in the system design if the full converter dynamic range is desired. This application note describes the performance and design equations for a simple passive 2nd-order filter used successfully in AD - ADS5500, OPA695: PC Board Layout for Low Distortion High-Speed ADC DriversPDF, 273 Kb, File published: Apr 22, 2004
Once an analog-to-digital converter (ADC) and a driver/interface have been selected for a given application, the next step to achieving excellent performance is laying out the printed circuit board (PCB) that will support the application. This application report describes several techniques for optimizing a high-speed, 14-bit performance, differential driver PCB layout using a wideband operation - Measuring Board Parasitics in High-Speed Analog DesignPDF, 134 Kb, File published: Jul 7, 2003
Successful circuit designs using high-speed amplifiers can depend upon understanding and identifying parasitic PCB components. Simulating a design while including PCB parasitics can protect against unpleasant production surprises. This application report discusses an easy method for measuring parasitic components in a prototype or final PC board design by using a standard oscilloscope and low freq - Noise Analysis for High Speed Op Amps (Rev. A)PDF, 256 Kb, Revision: A, File published: Jan 17, 2005
As system bandwidths have increased an accurate estimate of the noise contribution for each element in the signal channel has become increasingly important. Many designers are not however particularly comfortable with the calculations required to predict the total noise for an op amp or in the conversions between the different descriptions of noise. Considerable inconsistency between manufactu - Single-Supply Operation of Operational AmplifiersPDF, 77 Kb, File published: Oct 2, 2000
Operation of op amps from single supply voltages is useful when negative supply voltages are not available. Furthermore, certain applications using high voltage and high current op amps can derive important benefits from single supply operation. - Tuning in AmplifiersPDF, 44 Kb, File published: Oct 2, 2000
Have you ever had the experience of designing an analog gain block with an amplifier that is specified to be unity gain stable only to find that it is oscillating out of control in your circuit? Or have you ever replaced a stable voltage feedback amplifier with a current feedback amplifier to find that the current feedback amplifier immediately oscillates when placed in the amplifier socket? Oscil - Op Amp Performance AnalysisPDF, 76 Kb, File published: Oct 2, 2000
This bulletin reflects the analysis power gained through knowledge of an op amp circuit's feedback factor. Feedback dictates the performance of an op amp both in function and in quality. The major specifications of the amplifier descibe an open-loop device awaiting feedback direction of the end circuit's function. Just how well the amplifier performs the function reflects through the feedback inte
Model Line
Series: OPA2691 (8)
Manufacturer's Classification
- Semiconductors > Amplifiers > Operational Amplifiers (Op Amps) > High-Speed Op Amps (>=50MHz)
