Filters > D61

D61 Series

0.02 Hz to 1.00 Hz
32-Pin DIP
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Specifications

Pin-out and package data

Ordering Information


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D61 Series
Fixed Frequency
4-Pole Filters
 

 

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Description

The D61 Series of small 4-pole fixed-frequency, precision active filters provide high performance linear active filtering in a compact 32-pin DIP package, with a broad range of corner frequencies and a choice of transfer functions. Individual D61 filters can serve in low-pass or high-pass applications or be combined to create custom band-pass or band reject filters. These fully self-contained units require no external components or adjustments. Each model comes factory tuned to a user-specified corner frequency between 0.02 Hz and 1.00 Hz and operate with low total harmonic distortion over a wide dynamic input voltage range from non-critical +/-5V to +/-18V power supplies.

Features/Benefits:

  • Low harmonic distortion and wide signal-to-noise ratio
  • Compact 1.8"L x 0.8"W x 0.5"H minimizes board space requirements.
  • Plug-in ready-to-use, reducing engineering design and manufacturing cycle time.
  • Factory tuned, no external clocks or adjustments needed
  • Broad range of transfer characteristics and corner frequencies to meet a wide range of applications.

 

 

Applications

  • Anti-alias filtering
  • Data acquisition systems
  • Communication systems and electronics
  • Medical electronics equipment and research
  • Aerospace, navigation and sonar applications
  • Sound and vibration testing
  • Acoustic and vibration analysis and control
  • Noise elimination
  • Signal reconstruction

Available Low-Pass Models:

D61L4B
4-pole Butterworth
D61L4L
4-pole Bessel
 

Available High-Pass Models:

D61H4B
4-pole Butterworth


Fixed Frequency
4-Pole
Low-Pass and High-Pass Filters
Model D61L4B D61L4L   Model D61H4B
Product Specifications
 
Low-Pass
 
High-Pass
Transfer Function

Size

Range fc
   D61

4-Pole, Butterworth

1.8” x 0.8” x 0.5”


0.02 Hz to 1.00 Hz
4-Pole, Bessel

1.8” x 0.8” x 0.5”


0.02 Hz to 1.00 Hz
  Transfer Function

Size

Range fc
   D61

4-Pole, Butterworth

1.8” x 0.8” x 0.5”


0.02 Hz to 1.00 Hz
Theoretical Transfer
Characteristics
Click to view
Click to view
   
Click to view
Passband Ripple
   (theoretical)
0.0 dB 0.0 dB   Passband Ripple
   (theoretical)
0.0 dB
DC Voltage Gain
   
(non-inverting)
0 ± 0.1 dB max
0 ± 0.05 dB typ.
0 ± 0.1 dB max
0 ± 0.05 dB typ.
  Voltage Gain
   
(non-inverting)
0 ± 0.2 dB to 100 kHz
0 ± 0.5 dB to 120 kHz
        Power Bandwidth 120 kHz
        Small Signal Bandwidth (-6 dB) 1 MHz
Stopband
Attenuation Rate
24 dB/octave 24 dB/octave   Stopband
Attenuation Rate
24 dB/octave
Cutoff Frequency
Stability
Amplitude
Phase
fc          ± 2% max.
± 0.01% /°c
-3 dB
-180°
fc          ± 2% max.
± 0.01% /°c
-3 dB
-121°
  Cutoff Frequency
Stability
Amplitude
Phase
fc          ± 2% max.
± 0.01% /°c
-3 dB
-180°
Filter Attenuation
   
(theoretical)
0.67 dB       0.80 fc
3.01 dB       1.00 fc
30.0 dB       2.37 fc
40.0 dB       3.16 fc
1.86 dB       0.80 fc
3.01 dB       1.00 fc
30.0 dB       3.50 fc
40.0 dB       4.72 fc
  Filter Attenuation
   
(theoretical)
40.0 dB       0.31 fc
30.0 dB       0.42 fc
3.01 dB       1.00 fc
0.02 dB       2.00 fc
Phase Match1
0 - 0.8 fc
± 2° max.
± 1° typ.
0.8 fc - 1.0 fc
± 3° max.
± 1.5° typ.
0 - fc
± 2° max.
± 1° typ.
  Phase Match1
0 -100 kHz
± 3° max.
± 1.5° typ.
Amplitude Accuracy
   
(theoretical)
0 - 0.8 fc
± 0.2 dB max.
± 0.1 dB typ.
0.8 fc - 1.0 fc
± 0.3 dB max.
± 0.15 dB typ.
0 - fc
± 0.2 dB max.
± 0.1 dB typ.
  Amplitude Accuracy
   
(theoretical)
1.0 - 1.25 fc
± 0.30 dB max.
± 0.15 dB typ.
1.25 fc - 100 kHz
± 0.20 dB max.
± 0.10 dB typ.
Wide Band Noise
   
(5 Hz - 2 MHz)
200 µVrms typ. 200 µVrms typ.   Wide Band Noise
   
(5 Hz - 2 MHz)
400 µVrms typ.
Narrow Band Noise
  
(20 Hz - 100 kHz)
50 µVrms typ. 50 µVrms typ.   Narrow Band Noise
  
(20 Hz - 100 kHz)
100 µVrms typ.
Filter Mounting
Assembly
FMA-01S FMA-01S   Filter Mounting
Assembly
FMA-01S


Specifications

(@ 25°C and Vs ±15 Vdc)

Analog Input Characteristics1
  • Impedance: 10 kΩ min.
  • Voltage Range: ± 10 Vpeak
  • Max. Safe Voltage: ± Vs

Analog Output Characteristics

  • Impedance(Closed Loop):
    1 Ω typ., 10 Ω max.
  • Linear Operating Range: ± 10 V
  • Maximum Current2: ± 2 mA
  • Offset Voltage3:
    2 mV typ., 10 mV max.
    Offset Temp. Coeff.: 50 µV / °C

Notes:

  1. Input and output signal voltage referenced to supply common.
  2. Output is short circuit protected to common. DO NOT CONNECT TO +/-Vs.
  3. Adjustable to zero.
  4. Units operate with or without offset pin connected.
  5. How to Specify Corner Frequency:
    Corner frequencies are specified by attaching a three digit frequency designator to the basic model number. Corner frequencies can range from 0.05 Hz to 100 Hz.
Power Supply (+/-V)
  • Rated Voltage: ± 15 Vdc
  • Operating Range: ± 5 to ± 18 Vdc
  • Maximum Safe Voltage: ± 18 Vdc
  • Quiescent Current D61:
    ± 12.5 mA typ., ± 20 mA max.

Temperature

  • Operating: 0 to + 70°C
  • Storage: -25 to+85°C


Pin-Out and Package Data

Filter Mounting Assembly-See FMA-01S


Ordering Information


We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider the information to be true and accurate. Please read all statements, recommendations or suggestions herein in conjunction with our conditions of sale which apply to all goods supplied by us. We assume no responsibility for the use of these statements, recommendations or suggestions, nor do we intend them as a recommendation for any use which would infringe any patent or copyright.


Frequency Devices, Inc.
Your engineering partner for signal conditioning
  1784 Chessie Lane
Ottawa, IL 61350

Fax: (815) 434-8176
e-mail: sales@freqdev.com

 

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or (800) 252-7074 (U.S. only)

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