By eliminating the need for customized ASICs and simplifying front-end design, testing and measurement engineers can save several months of design time
Beijing, January 20, 2022/Associated Press/- Texas Instruments (TI) (NASDAQ code: TXN) today launched the High Input Impedance (Hi Z) buffer amplifier BUF802 with industry wide bandwidth, which can support frequency bandwidth up to 3GHz. BUF802 has a wider bandwidth and high voltage swing rate, enabling higher signal throughput and a greater reduction in input stabilization time. Designers can utilize this faster throughput to more accurately measure higher frequency signals in testing and measurement applications such as oscilloscopes, active probes, and high-frequency data acquisition systems. For more information, please refer to.
Previously, the bandwidth provided by BUF802 could only be achieved through dedicated integrated circuits (ASICs), which would increase system design time, complexity, and cost. BUF802 now does not require ASICs, and designers can use TI's buffers to accelerate time to market while achieving a wide dynamic range at a lower cost. You can read the following reference design: "Flexible 3.2GSPS multi-channel AFE reference design for DSO, radar, and 5G wireless testing systems"
Utilizing industry wide bandwidth to achieve ASIC level performance
Previously, alternative designs based on ASICs required dozens of discrete components, such as field-effect transistors (FETs), protective diodes, and transistors. These FET input amplifier based discrete designs increased the cost of bill of materials (BOM) and system complexity, and were unable to provide the same bandwidth as ASICs, thereby limiting the signal throughput of data acquisition applications.
The BUF802 integrates the characteristics of discrete components and provides a bandwidth 10 times wider than the FET input amplifier, matching the performance of customized ASICs, thus providing a single chip alternative for ASIC or FET input amplifier design. For a detailed understanding of the differences between BUF802 and discrete design solutions, please refer to the technical article "Simplifying Simulation Frontend Using Hi-Z Buffers".
Expand front-end design from 100MHz to 3GHz using the same BOM
The flexible BUF802 is an industry-leading buffer amplifier that can adjust static current to meet various bandwidth and signal swing requirements, such as 100MHz to 3GHz at 1V peak to peak (Vpp) and up to 2GHz at 2V peak to peak. With this wide adjustment range of bandwidth and signal swing, designers can easily expand their front-end design in multiple data acquisition applications, thereby reducing system costs and easily redesigning.
Reduce design complexity by utilizing integrated functional patterns

The integrated functional mode supports engineers to use BUF802 as an independent buffer or in combination with precision amplifiers such as OPA140 for composite loops as an independent buffer. BUF802 helps achieve high input impedance in applications that can withstand 100mV offset voltage or signal chain AC coupling

Reduce design complexity by utilizing integrated functional patterns
The integrated functional mode supports engineers to use BUF802 as an independent buffer or in combination with precision amplifiers such as OPA140 for composite loops as an independent buffer. BUF802 helps achieve high input impedance and high voltage swing rate in applications that can withstand 100mV offset voltage or signal chain AC coupling. In composite loops, the new buffer can achieve high DC accuracy and 3GHz bandwidth in applications that require a maximum temperature drift of 1 microvolt per degree Celsius.