Buffering op-amp removes complexity in measurement DAQ front ends

Mouser now stocks the BUF802 high-speed buffering operational amplifier from Texas Instruments. The device exponentially raises signal bandwidth in data acquisition systems, allowing design engineers to scale front-end designs across multiple data-acquisition applications for various test and measurement applications, including oscilloscopes, active probes and high-frequency data-acquisition systems.

The device is a high-input-impedance (Hi-Z), open-loop, unity gain buffer amplifier with a JFET-input stage that provides the industry’s widest bandwidth, able to support frequency bandwidths up to 3.1GHz. Replacing complex and costly ASIC-based design implementations, the device incorporates features of discrete components in a single chip that increases bandwidth tenfold compared to FET-input amplifiers. This performance allows design engineers to leverage higher signal throughput with minimal input settling time, leading to faster throughput and enhanced accuracy in higher-frequency signal measurement.

For development, Mouser also offers the BUF802RGTEVM evaluation module, which provides two separate signal configurations: a composite loop with a precision amplifier and the standalone BUF802 buffer. The device provides single or split supplies and footprints for SMA connectors into all analog inputs and outputs. Further, the layout is optimised to lower parasitic coupling and offer the best signal fidelity across frequency.