BUF802IRGTR

Overview

The BUF802IRGTR is a wide-bandwidth, high-input impedance JFET buffer manufactured by Texas Instruments. It features an open-loop unit-gain configuration with a large signal bandwidth of 3.1 GHz and a slew rate of 7,000 V/µs. The device exhibits low input voltage noise density of 2.3 nV/√Hz and achieves a 1% settling time of 0.7 ns. It operates within a supply voltage range of ±4.5 V to ±6.5 V and provides adjustable static current for power-performance trade-offs. Integrated input and output clamps protect the device from overdrive voltages.

Feature Summary

• Provides high-impedance buffering suitable for precision data acquisition front ends
• Features adjustable static current to balance bandwidth and distortion against power consumption
• Integrates input and output clamping circuits for protection against overdrive conditions

Applications

• Oscilloscope front ends
• High-frequency data acquisition systems
• Test and measurement equipment requiring high input impedance
• Active probes

Procurement Notes

Verify the specific suffix IRGTR corresponds to the reel packaging format required for your assembly line. Confirm that the ±4.5 V to ±6.5 V dual supply requirement aligns with your system design. Ensure thermal management considerations are addressed for the VQFN package during operation.

Selection Notes

Select this component when designing systems requiring ultra-wide bandwidth and minimal signal distortion at high frequencies. The adjustable quiescent current feature allows optimization for specific power constraints without sacrificing critical performance metrics like slew rate or noise density.

Part Context

This part belongs to the BUF802 family of wide-bandwidth JFET buffers. It is designed to complement precision amplifiers in composite loop configurations, offering superior speed and input impedance characteristics compared to standard operational amplifiers for high-speed signal conditioning tasks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.