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Mouser Ships Texas Instruments’ 8-GHz Operational Amplifier

Mouser Electronics is globally shipping the OPA855 decompensated amplifier from Texas Instruments. Designed as a wideband, low-noise, bipolar-input operational amplifier, the OPA855 excels in high bandwidth transimpedance and voltage amplifier applications.

Texas Instruments

The 8-GHz gain-bandwidth product (GBWP) of the OPA855 enables high-gain configurations while maintaining wide closed-loop bandwidth. Additionally, the low input-voltage noise of 0.98 nV/√Hz minimizes noise contribution from the amplifier, and the high slew rate of 2750 V/µs enables wide output voltage swings.

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

TIA applications for the OPA855 include in optical time-of-flight (ToF) systems with a time-to-digital converter, such as TI’s TDC7201. Alternatively, the OPA855 can also be used to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as TI’s THS4541 or LMH5401.

The OPA855 is the latest addition to TI’s family of ultra-wide bandwidth operational amplifiers, which also includes the FET-input OPA858 and OPA859 devices. 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.

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Jyoti Gazmer

A Mass Comm. graduate believes strongly in the power of words. A book lover who dreams to own a library some day. An introvert but will become your closest friend if you share mutual feelings about COFFEE. I prefer having more puppies over humans.

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