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The OPA846 combines very high gain bandwidth and large signal performance with very low input voltage noise, while dissipating a low 12.6mA supply current. The classical differential input stage, along with two stages of forward gain and a high power output stage, combine to make the OPA846 an exceptionally low distortion amplifier with excellent DC accuracy and output drive. The voltage-feedback architecture allows all standard op amp applications to be implemented with very high performance.
The combination of low input voltage and current noise, along with a 1.75GHz gain bandwidth product, make the OPA846 an ideal amplifier for wideband transimpedance stages. As a voltage gain stage, the OPA846 is optimized for a flat response at a gain of +10 and is stable down to a gain of +7.
A new external compensation technique can be used to give a very flat frequency response below the minimum stable gain for the OPA846, further improving its already exceptional distortion performance. Using this compensation makes the OPA846 one of the premier 12– to 16–bit Analog–to–Digital (A/D) converter input drivers. The supply current for the OPA846 is precisely trimmed to 12.6mA at +25°C. This, along with carefully defined supply current tempco in the input and output stages, combine to provide exceptional performance over the full specified temperature range.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | Wideband, Low Noise, Voltage-Feedback Operational Amplifier datasheet (Rev. E) | Dec 30, 2008 | |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | Mar 28, 2017 | |
| User guide | DEM-OPA-SO-1A User's Guide (Rev. B) | Apr 12, 2012 | ||
| User guide | DEM-OPA-SO-1B User's Guide (Rev. D) | Apr 12, 2012 | ||
| User guide | DEM-OPA-SOT-1A User's Guide (Rev. B) | Apr 12, 2012 | ||
| Application note | Transimpedance Considerations for High-Speed Operational Amplifiers | Nov 22, 2009 | ||
| User guide | DEM-OPA-SOT-1B User's Guide (Rev. B) | Apr 12, 2006 | ||
| Analog design Journal | Using a decompensated op amp for improved performance | Mar 11, 2005 | ||
| Application note | Noise Analysis for High Speed Op Amps (Rev. A) | Jan 17, 2005 | ||
| Application note | ADS5500, OPA695: PC Board Layout for Low Distortion High-Speed ADC Drivers | Apr 22, 2004 | ||
| Application note | Measuring Board Parasitics in High-Speed Analog Design | Jul 7, 2003 |
For additional terms or required resources, click any title below to view the detail page where available.
The DEM-OPA-SO-1B demonstration fixture in the non-inverting configuration helps designers evaluate the operation and performance of TI's single high speed, wideband operational amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.
For more (...)
The DEM-OPA-SOT-1B demonstration fixture in the non-inverting configuration helps designers evaluate the operation and performance of TI's single high speed, wideband operational amplifiers. This unpopulated PC board is compatible with products offered in the SOT23 (DBV) package.
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| SOT-23 (DBV) | 5 | Ultra Librarian |
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