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SR240A 350 MHz preamplifier (4-channel)

SR240A  350 MHz preamplifier (4-channel)

Product Details:

  • Supply Ability : 5-10 Piece piece Per Month

Price And Quantity

  • 1 Piece
  • 5000 INR

Trade Information

  • 5-10 Piece piece Per Month
  • 6-8 Week

Product Description

Gated Integrators and Boxcar Averagers
SR240A 350 MHz preamplifier (4-channel)

· Four independent channels
· DC to 350 MHz bandwidth
· 1 ns rise and fall time
· Voltage gain to 625
· 6.4 nV/√Hz input noise
· 50 Ω input and output impedance
· 3 ns overload recovery
· Excellent phase linearity

The model SR240A 350 MHz Preamplifier is a 4-channel, DC-coupled instrument with a gain of 5 per channel. The amplifiers can be used independently or cascaded to provide gains of 5, 25, 125 or 625. The fast rise time, low noise, and DC accuracy of the SR240A make it the ideal instrument for use with photomultiplier tubes and photodiodes.

The SR240A preamp is useful for amplifying small signals to levels that can be processed by other boxcar system modules. Typically, a signal of at least a few millivolts is required at the input of the SR250. If your detector does not supply this signal level, the SR240A can be used in front of the SR250 to ensure sufficient signal amplitude.

SR240A Specifications
Amplifier channels 4
Inputs and outputs 50 Ω, DC coupled
Bandwidth DC to 350 MHz (−3 dB)
Rise/fall time 1 ns (single channel)
Voltage gain 5 per channel. Up to 4 channels can
be cascaded.
Input noise 6.4 nV/√Hz
Operating range Inputs: ±200 mV, Outputs: ±1.0 V
Propagation delay 2.7 ns per channel
Recovery time 3 ns for a 10× overload
Input protection ±50 V for <1 μs
Output clamp ±1.6 V
Output overload detect ±1.3 V
Crosstalk −60 dB
Operating temperature 0 °C to 40 °C, non-condensing
Mechanical Single-width NIM module
Warranty One year parts and labor on defects
in materials and workmanship


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