video-banner
none

WIDEBAND OPERATIONAL AMPLIFIER

05-07-2019
by 
in 

The OPA855 decompensated amplifier from Texas Instruments is now available through Mouser Electronics. Designed as a wideband, low-noise, bipolar-input operational amplifier, the OPA855 excels in high bandwidth transimpedance and voltage amplifier applications. The 8GHz gain-bandwidth product of the OPA855 enables high-gain configurations while maintaining wide closed-loop bandwidth. Additionally, the low input-voltage noise of 0.98nV/√Hz minimises noise contribution from the amplifier, and the high slew rate of 2750V/µs enables wide output voltage swings.

For transimpedance amplifier applications, the OPA855 features a low input capacitance of only 0.8pF, which minimises the total circuit input capacitance and enables higher-speed designs. It also uses a unique package pinout design that simplifies the layout of the feedback network while simultaneously isolating pin-to-pin capacitance between the input and feedback connections. This design reduces the total parasitic capacitance around the amplifier’s feedback network, allowing for high-gain transimpedance amplifier designs to achieve wide bandwidth.

Applications include use in optical time-of-flight systems with a time-to-digital converter, such as Texas’s TDC7201. It can also be used to drive a high-speed analog-to-digital converter in high-resolution lidar systems with a differential output amplifier, such as Texas’s THS4541 or LMH5401.

The OPA855 is the latest addition to Texas’s family of ultra-wide bandwidth op amps, which also includes the FET-input OPA858 and OPA859. This family of amplifiers is ideal for wideband transimpedance circuits as well as high-speed data acquisition systems, low-noise front ends, and more. The device is supported by the dedicated OPA855DSGEVM op amp evaluation module and the general-purpose DEM-OPA-WSON8-EVM unpopulated evaluation board.

Mouser Electronics
+852 3756 4700
au.mouser.com

Related news & editorials

  1. 16.10.2019
    16.10.2019
    by      In
    Control Logic has a new range of slimline signal conditioners from Red Lion specially designed for process signal amplification, isolation and conversion in industrial environments.
    In addition to a large array of input types, the range ensures high fidelity measurement of any temperature, analogue... Read More
  2. 15.10.2019
    15.10.2019
    by      In
    Omron reckons it is taking product inspection to another level with the release of its new FHV7 smart camera for advanced visual inspections on high-mix production lines.
    The FHV7 features the world’s first multi-colour light and high-resolution image sensor – billed as the best in class. This... Read More
  3. 15.10.2019
    15.10.2019
    by      In
    When spraying any type of liquid, post-spray liquid flow can cause big problems. Unwanted drips can ruin product function on sealing or mating surfaces and ruin the appearance of painted or coated finishes. In addition, excess liquid flow wastes precious resources such as expensive coatings,... Read More
  4. 15.10.2019
    15.10.2019
    by      In
    NUM has launched a powerful new software framework tool that enables users of CNC machine tools to generate and test ISO part programs offline.
    The Flexium Office framework software runs under Windows 7/8 or 10 on any standard PC. It allows any of NUM’s technology HMIs to be used for specific... Read More