BUF802

AKTIV

JFET-Eingangspuffer mit großer Bandbreite, 2,3 nV/√Hz

Produktdetails

Architecture FET / CMOS Input, Fixed Gain/Buffer Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 9 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 13 GBW (typ) (MHz) 3100 BW at Acl (MHz) 3100 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 7000 Vn at flatband (typ) (nV√Hz) 2.3 Vn at 1 kHz (typ) (nV√Hz) 10 Iq per channel (typ) (mA) 34 Vos (offset voltage at 25°C) (max) (mV) 800 Rail-to-rail No Features Adjustable BW/IQ/IOUT, Integrated Clamps Rating Catalog Operating temperature range (°C) -40 to 85 Input bias current (max) (pA) 25 Offset drift (typ) (µV/°C) 700 Iout (typ) (mA) 15 2nd harmonic (dBc) -55 3rd harmonic (dBc) -59 Frequency of harmonic distortion measurement (MHz) 1000
Architecture FET / CMOS Input, Fixed Gain/Buffer Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 9 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 13 GBW (typ) (MHz) 3100 BW at Acl (MHz) 3100 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 7000 Vn at flatband (typ) (nV√Hz) 2.3 Vn at 1 kHz (typ) (nV√Hz) 10 Iq per channel (typ) (mA) 34 Vos (offset voltage at 25°C) (max) (mV) 800 Rail-to-rail No Features Adjustable BW/IQ/IOUT, Integrated Clamps Rating Catalog Operating temperature range (°C) -40 to 85 Input bias current (max) (pA) 25 Offset drift (typ) (µV/°C) 700 Iout (typ) (mA) 15 2nd harmonic (dBc) -55 3rd harmonic (dBc) -59 Frequency of harmonic distortion measurement (MHz) 1000
VQFN (RGT) 16 9 mm² 3 x 3
  • Large-signal bandwidth (1 VPP): 3.1 GHz
  • Slew rate: 7000 V/µs
  • Input voltage noise: 2.3 nV/√Hz
  • 1% settling time: 0.7 ns
  • Input-impedance: 50 GΩ || 2.4 pF
  • Capable of driving 50 Ω load
  • Adjustable quiescent current for power and performance trade-off
  • Integrated input and output clamp with fast overdrive recovery
  • Voltage supply: ±4.5 V to ±6.5 V
  • Large-signal bandwidth (1 VPP): 3.1 GHz
  • Slew rate: 7000 V/µs
  • Input voltage noise: 2.3 nV/√Hz
  • 1% settling time: 0.7 ns
  • Input-impedance: 50 GΩ || 2.4 pF
  • Capable of driving 50 Ω load
  • Adjustable quiescent current for power and performance trade-off
  • Integrated input and output clamp with fast overdrive recovery
  • Voltage supply: ±4.5 V to ±6.5 V

The BUF802 device 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 3.1 GHz of bandwidth while offering excellent distortion and noise performance across the frequency range.

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

The BUF802 features an adjustable quiescent current pin, which enables 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.

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The BUF802 device 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 3.1 GHz of bandwidth while offering excellent distortion and noise performance across the frequency range.

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

The BUF802 features an adjustable quiescent current pin, which enables 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.

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Technische Dokumentation

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Alle anzeigen 6
Typ Titel Datum
* Data sheet BUF802 Wide-Bandwidth, 2.3 nV/√Hz, High-Input Impedance Buffer datasheet (Rev. C) PDF | HTML 18 Mär 2022
Product overview Pairing High-Speed JFET Amplifiers With Hi-Z DAQ Systems PDF | HTML 08 Apr 2024
Application note Choosing an Amplifier for Wide Bandwidth, High-Impedance, Data Acquisition AFEs PDF | HTML 02 Mär 2023
Application brief How to Tune the S-Parameters of Your Analog Front-End Signal Chain PDF | HTML 25 Feb 2022
EVM User's guide BUF802RGTEVM User's Guide (Rev. A) PDF | HTML 04 Feb 2022
Technical article Achieving high-DC precision and wide large signal bandwidth with Hi-Z buffers PDF | HTML 18 Jan 2022

Design und Entwicklung

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