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The OPA4820 provides a wideband, unity-gain stable, voltage-feedback amplifier with a very low input noise voltage and high output current using a low 5.7mA/ch supply current. At unity-gain, the OPA4820 gives > 600MHz bandwidth with < 1 dB peaking. The OPA4820 complements this high-speed operation with excellent DC precision in a low-power device. A worst-case input offset voltage of ±0.8mV and an offset current of ±500nA give excellent absolute DC precision for pulse amplifier applications.
Minimal input and output voltage swing headroom allow the OPA4820 to operate on a single +5V supply with > 2VPP output swing. While not a rail-to-rail (RR) output, this swing will support most emerging analog-to-digital converter (ADC) input ranges with lower power and noise than typical RR output op amps.
Exceptionally low dG/dP (0.01%/0.03°) supports low-cost composite video line driver applications. Existing designs can use the industry-standard quad pinout SO-14 package while emerging high-density portable applications can use the TSSOP-14.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | Quad, Unity-Gain, Low-Noise, Voltage-Feedback Operational Amplifier datasheet (Rev. D) | Aug 28, 2008 | |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | Mar 28, 2017 | |
| Application note | RLC Filter Design for ADC Interface Applications (Rev. A) | May 13, 2015 | ||
| User guide | DEM-OPA-SO-4A User's Guide (Rev. B) | Nov 26, 2008 | ||
| User guide | DEM-OPA-TSSOP-4A User's Guide (Rev. C) | Aug 12, 2008 | ||
| 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-4A demonstration fixture is a generic, unpopulated printed circuit board (PCB) for evaluating the operation and performance of TI's quad high-speed operational amplifiers in SO-14 (DDB) packages.
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) | 14 | Ultra Librarian |
| TSSOP (PW) | 14 | Ultra Librarian |
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