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Start | Products | Bench Instruments | Instrumentation Modules | Small Instrumentation Modules | SRS SIM965 Bessel and Butterworth Filter Analog high-pass / low-pass filter
SRS SIM965 Bessel and Butterworth Filter Analog high-pass / low-pass filterSRS SIM965 Bessel and Butterworth Filter Analog high-pass / low-pass filterSRS SIM965 Bessel and Butterworth Filter Analog high-pass / low-pass filter
  • SRS SIM965 Bessel and Butterworth Filter Analog high-pass / low-pass filter
  • SRS SIM965 Bessel and Butterworth Filter Analog high-pass / low-pass filter
  • SRS SIM965 Bessel and Butterworth Filter Analog high-pass / low-pass filter

SRS SIM965 Bessel and Butterworth Filter Analog high-pass / low-pass filter

Art. nr: SRS SIM965

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Product description

  • 1 Hz to 500 kHz
  • 3-digit cutoff frequency resolution
  • High-pass or low-pass operation
  • Selectable rolloff
  • Continuous time (not sampled)

The SIM965 Analog Filter is ideal for signal conditioning applications where Bessel or Butterworth filters are needed.

Bessel filters offer clean step response (negligible overshoot) and linear phase response, while Butterworth filters provide excellent pass-band flatness with some overshoot.

A choice of high-pass or low-pass filtering is selected from the front panel. Cutoff frequencies are set with 3-digit resolution, and a choice of 12, 24, 36 or 48 dB/octave rolloff is provided for either filter type.

 

The SIM965 accepts input signals between ±5 V, and has unity gain. Its low noise and low harmonic distortion, along with a bandwidth of greater than 1 MHz, make it ideal in sensitive analog applications.

If signal amplification is needed, the SIM910 JFET Preamplifier, or the SIM911 BJT Preamplifier should be considered.

 

Up to eight SIM965 modules can be housed in one SIM900 mainframe. Mainframes can be cascaded, allowing an unlimited number of filter channels for complex applications.

 

The SIM965 is also fully programmable. All functions can be controlled from a computer via the SIM900 Mainframe. Both RS-232 and GPIB interfaces are supported by the mainframe.

 

 

More information

Specifications

 

Input
Impedance 1 MΩ
Coupling AC or DC
Gain
Max. input ±5 V

Filter
Filter Low-pass or high-pass
Tuneable freq. range 1 Hz to 500 kHz
Resolution 3-digit
Rolloff 12 dB/oct., 24 dB/oct.,

36 dB/oct., or 48 dB/oct.

Output
Noise <200 µVrms (1 MHz bandwidth)
THD 0.01 % (80 dB) at 1 kHz 

 

General
Operating temp. 0 °C to 40 °C, non-condensing

Interface Serial via SIM interface

Connectors BNC (2 front, 1 rear) DB15

(male) SIM interface

Power Power supplied by the SIM900

Mainframe, or optionally by a

user-supplied DC power supply

(±15 V and +5 V)

Dimensions  1.5" × 3.6" × 7.0" (WHL)
Weight 1.5 lbs.
Warranty One year parts and labor on

defects in materials and

workmanship