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Texas Instruments BUF802 High-Speed Operational Amplifier

Texas Instruments BUF802 High-Speed Operational Amplifier is an open-loop, unity gain buffer with a JFET-input stage that offers low-noise, high-impedance buffering for data acquisition system (DAQ) front-ends. The BUF802 supports DC to 3.1GHz of bandwidth while providing excellent distortion and noise performance across the frequency range.

The BUF802 may be used in a composite loop with a precision amplifier in applications requiring higher precision performance. The BUF802 uses an innovative architecture to simplify the design of high-precision, wide-bandwidth composite loops.

The Texas Instruments BUF802 features an adjustable quiescent current pin, enabling designers to trade bandwidth and distortion for a lower quiescent current, thus making the part suitable across a wide frequency range. The BUF802 has integrated input and output clamps to protect the device and its subsequent signal chain from overdrive voltages.

Features

3.1GHz large-signal bandwidth (1 VPP)
7000V/µs slew rate
2.3nV/√Hz input voltage noise
0.7ns 1% settling time
50GΩ || 2.4pF input-impedance

Capable of driving 50Ω load
Adjustable quiescent current for power and performance trade-off
Integrated input and output clamp with fast overdrive recovery
±4.5V to ±6.5V voltage supply

Applications

Oscilloscope front-end
High-frequency data acquisition
High input-impedance and high slew rate T&M systems

Oscilloscope encoder and front-end add-on cards
Active probes
Non-destructive testing (NDT)

Texas Instruments BUF802 High-Speed Operational Amplifier

Features

Applications

Functional Block Diagram

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