D66 & DP66 Series
1.0 Hz to 100 kHz 32 Pin DIP
Fixed Frequency 6-Pole Filters
Description
The D66 and DP66 Series of small 6-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 D66 filters can serve in low-pass or high-
pass applications (DP66, low-pass only) 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 1 Hz and 100 kHz (DP66,
1 Hz to 5 kHz) 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 to 16 bit resolution.
· Compact 1.8"L x 0.8"W x 0.3"H minimizes board
space requirements.
· Plug-in ready-to-use, reducing engineering design
and manufacturing cycle time.
· Factory tuned, no external clocks or adjustments Available Low-Pass Models: ......................Page
needed D66L6B 6-pole Butterworth ....................................2
DP66L6B 6-pole Butterworth (Low Power) ..............2
· Broad range of transfer characteristics and corner D66L6L 6-pole Bessel ............................................2
frequencies to meet a wide range of applications. DP66L6L 6-pole Bessel (Low Power) ......................2
Applications
Available High-Pass Models: ..................................
· Anti-alias filtering
D66H8B 6-pole Butterworth ....................................2
· Data acquisition systems
· Communication systems and electronics General Specifications: ........................................
Pin-out/package data & ordering information ..........3
· Medical electronics equipment and research
· Aerospace, navigation and sonar applications
· Sound and vibration testing
· Acoustic and vibration analysis and control
· Noise elimination
· Signal reconstruction
1
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
D66 & DP66 Series
6-Pole
Fixed Frequency Low-Pass and High-Pass Filters
Model D66L6B & DP66L6B D66L6L & DP66L6L Model D66H6B
Product Specifications Low-Pass Low-Pass High-pass
Transfer Function 6-Pole, Butterworth 6-Pole, Bessel Transfer Function 6-Pole, Butterworth
Size 1.8" x 0.8" x 0.3" 1.8" x 0.8" x 0.3" Size 1.8" x 0.8" x 0.3"
Range fc Range fc
D66 1 Hz to 100 kHz 1 Hz to 100 kHz D66 1 Hz to 100 kHz
DP66 1 Hz to 5 kHz 1 Hz to 5 kHz DP66 Not Available
Theoretical Transfer Appendix A Appendix A Theoretical Transfer Appendix A
Characteristics Page 8 Page 3 Characteristics Page 28
Passband Ripple 0.0 dB 0.0 dB Passband Ripple 0.0 dB
(theoretical) (theoretical)
DC Voltage Gain 0 ± 0.1 dB max. 0 ± 0.1 dB max. Voltage Gain 0 ± 0.1 dB to 100 kHz
(non-inverting) 0 ± 0.05 dB typ. 0 ± 0.05 dB typ. (non-inverting) 0 ± 0.05 dB to 120 kHz
Stopband Stopband
Attenuation Rate 36 dB/octave 36 dB/octave Attenuation Rate 36 dB min.
Power Bandwidth (-6dB) 1 MHz
Power Bandwidth 120 kHz
Cutoff Frequency fc ± 1% max. fc ± 1% max. Cutoff Frequency fc ± 1% max.
Stability ± 0.01% /°C ± 0.01% /°C Stability ± 0.01% /°C
Amplitude -3dB -3dB Amplitude -3dB
Phase -270° -155° Phase -270°
Filter Attenuation 0.29 dB 0.80 fc 1.89 dB 0.80 fc Filter Attenuation 80.0 dB .21 fc
(theoretical) 3.01 dB 1.00 fc 3.01 dB 1.00 fc (theoretical) 60.0 dB .32 fc
60.0 dB 3.16 fc 60.0 dB 5.41 fc 3.01 dB 1.00 fc
80.0 dB 4.64 fc 80.0 dB 7.99 fc 0.00 dB 2.5 fc
Phase Match1 0 - 0.8 fc ± 2° max. 0 - fc ± 2° max. Phase Match1 fc - 100 kHz ± 3° max.
± 1° typ. ± 1° typ. ± 1.5° typ.
0.8 fc - 1.0 fc ± 3° max.
± 1.5° typ.
Amplitude Accuracy 0 - 0.8 fc ± 0.2 dB max. 0 - fc ± 0.2 dB max. Amplitude Accuracy 1.0 - 1.25 fc ± 0.3 dB max.
(theoretical) ± 0.1 dB typ. ± 0.1 dB typ. (theoretical) ± 0.15 dB typ.
0.8 fc - 1.0 fc ± 0.3° dB max. 1.25fc-100kHz ± 0.2 dB max.
± 0.15° dB typ. ± 0.1 dB typ.
Total Harmonic Total Harmonic
Distortion @ 1 kHz Distortion @ 1 kHz
D66 <-100 dB typ. <-100 dB typ. D66 <-88 dB typ.
DP66 <-80 dB typ. <-80 dB typ.
Wide Band Noise 200 mVrms typ. 200 mVrms typ. Wide Band Noise 400 mVrms typ.
(5 Hz - 2 MHz) (5 Hz - 2 MHz)
Narrow Band Noise 50 mVrms typ. 50 mVrms typ. Narrow Band Noise 100 mVrms typ.
(20 Hz - 100 kHz) (20 Hz - 100 kHz)
Filter Mounting Filter Mounting
Assembly FMA-01A FMA-01A Assembly FMA-01A
1. Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
2
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
D66 & DP66 Series
Specification Pin-Out and Package Data
(25°C and Vs ± 15 Vdc) Ordering Information
1
Analog Input Characteristics 0.80
Impedance 10 kW min.
Voltage Range ± 10 Vpeak Side View
All dimensions are in inches
All case dimensions ± 0.01"
Max. Safe Voltage ± Vs 0.025 dia.
Analog Output Characteristics 1.80
Impedance(Closed Loop) 1 W typ. Front View 0.30
10 W max.
Linear Operating Range ± 10 V 0.15 (min)
2
Maximum Current ± 2 mA
3 0.80
Offset Voltage 2 mV typ. 0.70
20 mV max. OUT +VS -VS OS4
Offset Temp. Coeff. 50 mV / °C Bottom View
Power Supply (±V) GND IN
0.10
Rated Voltage ± 15 Vdc 0.00
0.00
0.15
0.45
0.55
1.55
1.65
1.80
Operating Range ± 5 to ± 18 Vdc
Maximum Safe Voltage ± 18 Vdc
Quiescent Current D66 Filter Mounting Assembly-See FMA-01A
± 19 mA typ.
± 30 mA max.
Quiescent Current DP66
± 7.0 mA typ.
± 8.0 mA max.
Ordering Information
Temperature Filter Type Transfer Function
Operating - 0 to + 70 °C L - Low Pass B - Butterworth
Storage - 25 to + 85 °C H - High Pass L - Bessel
DC Offset Adjustment
± Vs
D66L6B-849 Hz
Do not connect Power Level 5
if trim is not - 3 dB Corner Frequency
required. D Standard Power
e.g., 849 Hz
20 k W DP Low Power 2.50 kHz
(Cermet) OS Notes: 33.3 kHz
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 with out offset pin connected.
- Vs
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
1.00 Hz to 100 kHz.
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. IN-00D66-00
3
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
Low-Pass
6-Pole
Appendix A Bessel
Theoretical Transfer Characteristics Frequency Response
1 0
f/fc Amp Phase Delay
(Hz) (dB) (deg) (sec)
-20
0.00 0.00 0.00 .430
Amp (dB)
0.10 -0.029 -15.5 .430 -40
0.20 -0.116 -31.0 .430
0.30 -0.261 -46.5 .430 -60
0.40 -0.465 -62.0 .430
0.50 -0.728 -77.4 .430
-80
0.60 -1.05 -92.9 .430
0.70 -1.44 -108 .430 -100
0.80 -1.89 -124 .430 2 3 4 56781.0 2 3 4 567 10.0
0.85 -2.15 -132 .430 0.1
0.90 -2.42 -139 .430 Normalized Frequency(f/fc)
0.95 -2.70 -147 .430
1.00 -3.01 -155 .430
1.10 -3.68 -170 .429 Delay (Normalized)
1.20 -4.44 -186 .428 1.0
1.30 -5.29 -201 .426
1.40 -6.23 -216 .422
Delay (sec)
1.50 -7.29 -232 .416
1.60 -8.46 -246 .401
1.70 -9.74 -261 .393 0.5
1.80 -11.1 -275 .376
1.90 -12.6 -287 .357
2.00 -14.2 -300 .335
2.25 -18.3 -328 .279
2.50 -22.6 -351 .228 0.0
2.75 -26.7 -369 187 0.1 0.15 2 3 4 5 6 7 89 1.0 1.5
3.00 -30.7 -385 .156 Normalized Time (1/f sec)
3.25 -34.5 -398 .131
3.50 -38.1 -408 .111
4.00 -44.7 -426 .083
5.00 -55.9 -449 .052 Step Response
1.2
Step Response (V/V)
6.00 -65.2 -465 .036
7.00 -73.2 -476 .026 1.0
8.00 -80.1 -484 .020
9.00 -86.2 -490 .015 0.8
10.0 -91.6 -495 .013 0.6
0.4
0.2
-0.0
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency -0.2
of 1.0Hz.The actual delay is the normalized delay divided 0 1 2 3 4 5
by the actual corner frequency (fc). Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
3
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
Low-Pass
6-Pole
Appendix A Butterworth
Theoretical Transfer Characteristics Frequency Response
1 0
f/fc Amp Phase Delay
(Hz) (dB) (deg) (sec)
-20
0.00 0.00 0.00 .615
Amp (dB)
0.10 0.00 -22.2 .617 -40
0.20 0.00 -44.5 .624
0.30 0.00 -67.2 .637 -60
0.40 0.00 -90.4 .656
0.50 -0.001 -115 .685
-80
0.60 -0.009 -140 .731
0.70 -0.060 -167 .803 -100
0.80 -0.289 -198 .911 2 3 4 5 6 78
0.85 -0.578 -215 .970 0.1 1.0 2 3 4 5 6 7 10.0
0.90 -1.080 -233 1.02 Normalized Frequency(f/fc)
0.95 -1.88 -252 1.03
1.00 -3.01 -270 1.00
1.10 -6.17 -304 .845 Delay (Normalized)
1.20 -9.96 -331 .660
1.30 -13.9 -352 .518 2.0
1.40 -17.6 -368 .417
Delay (sec)
1.50 -21.2 -382 .345
1.60 -24.5 -393 .291
1.70 -27.7 -403 .251
1.80 -30.6 -412 .219 1.0
1.90 -33.5 -419 .193
2.00 -36.1 -425 .171
2.25 -42.3 -439 .132
2.50 -47.8 -450 .105
2.75 -52.7 -458 .086 0.0
0.15 2 3 4 5 6 7 89 1.5
0.1 1.0
3.00 -57.3 -465 .071 Normalized Time (1/f sec)
3.25 -61.4 -471 .060
3.50 -65.3 -476 .052
4.00 -72.2 -484 .039
5.00 -83.9 -496 .025 Step Response
Step Response (V/V)
6.00 -93.4 -503 .017 1.2
7.00 -101 -508 .012
8.00 -108 -512 .0097 1.0
9.00 -115 -515 .0076 0.8
10.0 -120 -518 .0062
0.6
0.4
0.2
1.Normalized Group Delay: -0.0
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided 0 1 2 3 4 5
by the actual corner frequency (fc). Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
8
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
High-Pass
6-Pole
Appendix A Butterworth
Theoretical Transfer Characteristics Frequency Response
1 0
f/fc Amp Phase Delay
(Hz) (dB) (deg) (sec)
-20
0.10 -120 518 0.617
Amp (dB)
0.20 -83.9 496 0.624 -40
0.30 -62.7 473 0.637
0.40 -47.8 450 0.656 -60
0.50 -36.1 425 0.685
0.60 -26.6 400 0.731 -80
0.70 -18.6 373 0.803
0.80 -11.9 342 0.911 -100
0.85 -9.05 325 0.970 2 3 4 5 6 78
0.90 -6.57 307 1.017 0.1 1.0 2 3 4 5 6 7 10.0
Normalized Frequency(f/fc)
0.95 -4.55 288 1.033
1.00 -3.01 270 1.005
1.20 -0.46 209 0.660
1.40 -0.08 172 0.417
1.60 -0.02 147 0.291
1.80 -0.00 128 0.219
2.00 -0.00 115 0.171
2.50 -0.00 90.4 0.105
3.00 -0.00 74.8 0.071
4.00 0.00 55.8 0.039
5.00 0.00 44.5 0.025
6.00 0.00 37.0 0.017
7.00 0.00 31.7 0.013
8.00 0.00 27.7 0.010
9.00 0.00 24.6 0.008
10.0 0.00 22.2 0.006
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
28
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de