FIXED FILTER(60 Hz Notch : $99.00 each)

Miniature Filters
Active/Bandpass/Band-Reject

This active notch filter is particularly useful for rejecting unwanted line frequencies such as 50, 60, 100, 120 or 400 Hz within sharply defined limits. Applications are in such diversified areas as communications, telemetry, control, analog computers or sensitive chemical measurements. Carrier frequencies can be eliminated where passive filters would affect waveform. In Biological and Medical recording equipment, this filter will eliminate 60 or 50 cycle noise signals in EEGs, ECGs, EMGs and EGGs without signal distortion such as would occur with passive filters. At 60 and 50 Hz the rejection bandwidth can be narrowed to 1 Hz

Features include:
  • 60 CYCLES (60Hz) POWER NOISE REJECTION
    Up to 60 dB attenuation.
    Q = 10 (10% - 3 db bandwidth).
    Other frequency available (e.g. 50Hz)
  • 2ND ORDER FILTER BLOCK
    Implement a 2nd order (biquad) stage.
    Cascade to build higher order filter.
  • MULTI-FUNCTION OUTPUTS
    Simultaneous outputs : Lowpass,
    Highpass, Bandpass & Bandreject
  • COMPLETELY ASSEMBLED
    Fully finished module.
    No external component required.
  • BUILT-IN ADJUSTABLE PARAMETERS
    3 dB bandwidth, Notch frequency, center frequency,
    DC offset.
  • IDEAL FUNCTION BLOCK
    High input impedance.
    Low output impedance.
  • SYMMETRICAL RESPONSES
    Same roll-off rate on lower & upper band
  • STABLE OUTPUT
    Unity gain output.
    Amplification available.
  • COMPENSATED DC OFFSET
    Internal DC offset < 2 mV.
    External adjustable to 0.0.
  • BUILT-IN DECOUPLING
    Internal power supply decoupling.
  • LOW POWER CONSUMPTION

    • Applications and Ratings

    APPLICATIONS

  • Phase correction
  • Signal Conditioner
  • Frequency selection
  • Harmonic elimination
  • 60 Hz/50Hz power
    noises rejection
  • Audio Equalizer
  • Speech Analysis

    • TYPICAL RESPONSE CURVES 

    Band Reject

    Bandpass
    ABSOLUTE MAXIMUM RATING
    Supply Voltage ± 15 V to ± 5 V
    Input Voltage ± 12 V
    Output Swing ± 12 V (2k load)
    Dynamic Range > 90 dB
    Operating Temp.

    commercial

    		 0° C to 70° C

    industrial

    		 - 25° C to 85° C

    military

    		 - 55° C to 125° C
    Storage Temp. - 65° C to 150° C
    Max.Attenuation >60 dB

    Case Style & Outline Dimensions

    24 PIN DIP PACKAGE
    PIN NO. FUNCTION
    1 No Connection
    2 Highpass Output
    3 V+ Supply
    4 Bandpass Output
    5 No Connection
    6 Filter Input
    7 Q Adjust
    8 V-Supply
    9 Band-reject Output
    10 Ground & common of supply

    11

    		 DC Adjust

    ADJUSTMENT CIRCUITS

     

    Specifications

    ELECTRICAL CHARACTERISTICS
    (Supply = ±15V., Load = 10 k‡, Temp. = 25° C)
    Supply Current 10 mA/4th order
    Input Impedance > 500 kohm
    Output Impedance < 1 ohm (@ DC)
    Cut-off Variation ± 2%
    Frequency Stability 0.01 % /°C
    Unity Gain Output 0.0 dB
    Max. Input Voltage ±12 V.
    Max. Output Voltage ±12 V.
    DC Offset < ±2mV
    MECHANICAL CHARACTERISTICS
    Dimension 1.25" x 0.80" x 0.025"
    Pin Diameter 0.025"
    Materials Glass Filled
    Thermoplastic Nylon
    Socket Standard 24 pin DIP Socket

    OPTIONS
    Suffix Description
    L ­ Low power consumption (1mA)
    I ­ Industrial temp. range (-25° C to 85° C)
    M ­ Military temp. range (-55° C to 125° C)
    A1 ­ 10x amplification
    A2 ­ 100x amplification
    A3 ­ 1000x amplification

     

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    Avens, Inc.
    P.O. Box 518 Plumsteadville, PA 18949
    800-394-5407
    Tel: 215-766-8775 • Fax: 215-997-8706
    info@avens-filter.com • www.avens-filter.com