N9020A MXA Signal Analyzer

Accelerate the Development of Wireless Devices with the Speed, Performance & Applications to Adapt to Evolving Test Requirements

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N9020A MXA Signal Analyzer

8753ES Network Analyzer

Attain Unrivaled Excellence. Find Out Why Over 70% of Engineering Teams Around the World Select Keysight Network Analyzers

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8753ES Network Analyzer

SM200B Spectrum Analyzer

The High Performance SM200B From Signal Hound: High Performance Speed, Accuracy, Security, and Agility Meet Very Low Cost

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Testimonials

  • ★★★★★

    "Fantastic deal. The oscilloscope is in very good condition. Packed for shipment to survive anything"
    Jeff
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    "Premium equipment. Excellent communication. Fast. Best value!"
    Avi
  • ★★★★★

    "Practically in new condition"
    Darcy
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    "There was a small issue; The people at BRL Test were 100% responsive and issue resolved. Thanks!"
    Mike
  • ★★★★★

    "Best packing ever! I would let you ship one of my children!"
    Todd
  • ★★★★★

    "Unit received in great shape. Passed Agilent calibration. Good job!!"
    Lee
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    "In every aspect these guys are great!"
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428-PROG - Keithley Current Amplifiers


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  • Model: 428-PROG
  • Manufactured by: Keithley
  • Bandwidth: 175.00kHz
  • Gain [V/A]: 10^11
  • Input Noise: 1.2fA rms
  • Extra Specifications: Programmable Current Amplifier
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Keithley 428-PROG Overview

The Model 428-PROG Programmable Current Amplifier converts fast, small currents to a voltage, which can be easily digitized or displayed by an oscilloscope, waveform analyzer, or data acquisition system. It uses a sophisticated "feedback current" circuit to achieve both fast rise times and sub-picoamp noise. The gain of the Model 428-PROG is adjustable in decade increments from 103V/A to 1011V/A, with selectable rise times from 2µs to 300ms.

  • 2µs rise time
  • 1.2fA rms noise
  • Up to 1011 V/A gain
  • IEEE-488 interface
  • Fast response at low current levels
  • Incorporates a second-order Bessel-function filter that minimizes noise without increasing rise time on high-gain ranges
  • Can be connected to an oscilloscope or waveform digitizer to display very low currents in real time
  • Simple front panel operation with LED indicators, and selectable display intensities
iso9001 Calibration

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The BRL Test Lab offers in-house ISO9001:2015 compliant calibration to its end users and industry professionals with precision accuracy, fast turn-around times, and a seamless customer experience.
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