D72 & DP72 Series 1.0 Hz to 100 kHz Fixed Frequency 16 Pin DIP 2-Pole Filters Description The D72 and DP72 Series of low-power, fixedfrequency, linear active filters are high performance, 2-pole filters in a compact package. These Butterworth and Bessel low-pass and Butterworth high-pass filters (D72 only) combine linear active filter design with the space savings of a 16-pin dual in-line package (DIP). Each model comes factory tuned to a user-specified corner frequency between 1 Hz and 100 kHz (DP72, 1 Hz to 5kHz). These fully self-contained units require no external components or adjustments and operate with dynamic input voltage range from non-critical ±5V to ±18V power supplies. Features/Benefits: • Low cost solution for low frequency signal conditioning • Compact DIP design minimizes board space requirements • Plug-in ready-to-use, reducing engineering design and manufacturing time • Factory tuned, no external clocks or adjustments needed saving time and labor of other discrete assembly solutions • Low harmonic distortion and wide signal-to-noise ratio to 12 bit resolution Applications • Anti-alias filtering • Vibration & shock analysis • Automatic test equipment • Aerospace, navigation and sonar • Communication systems • Medical electronics • Sound and vibration testing Available D72L2B DP72L2B D72L2L DP72L2L Low-Pass Models: . . . . . . . . . . . . . . . . 2-pole Butterworth . . . . . . . . . . . . . . .2 2-pole Butterworth (Low Power) . . . . .2 2-pole Bessel . . . . . . . . . . . . . . . . . . .2 2-pole Bessel (Low Power) . . . . . . . .2 Available High-Pass Models: D72H2B 2-pole Butterworth . . . . . . . . . . . . . . .2 General Specifications: Pin-out/package data & ordering information . . . .3 • Noise elimination • Process control 1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176 e-mail: [email protected] • Web Address: http://www.freqdev.com D72 & DP72 Series 2-Pole Low-Pass and High-Pass Filters Fixed Frequency Model D72L2B & DP72L2B D72L2L & DP72L2L Product Specifications Low-Pass Low-Pass Transfer Function 2-Pole, Butterworth 2-Pole, Bessel Transfer Function 2-Pole, Butterworth Size 0.88” x 0.46” x 0.375” 0.88” x 0.46” x 0.375” Size 0.88” x 0.46” x 0.375” Range fc D72 DP72 1 Hz to 100 kHz 1 Hz to 5 kHz 1 Hz to 100 kHz 1 Hz to 5 kHz Range fc 1 Hz to 100 kHz Theoretical Transfer Characteristics Appendix A Page 6 Appendix A Page 1 Theoretical Transfer Characteristics Appendix A Page 26 Passband Ripple 0.0 dB 0.0 dB Passband Ripple 0.0 dB (theoretical) 0 ± 0.1 dB typ. 0 ± 0.1 dB typ. Voltage Gain (non-inverting) Stopband Attenuation Rate 12 dB/octave fc ± 0.03% /°C -3 dB -90° Filter Attenuation 1.49 dB 3.01 dB 30.0 dB 40.0 dB ± 2% max. 0.80 fc 1.00 fc 5.62 fc 10.0 fc fc ± 0.03% /°C -3 dB -74.3° <-70 dB <-70 dB Wide Band Noise 200 mVrms typ. (20 Hz - 100 kHz) Filter Mounting Assembly 12 dB/octave Power Bandwidth 120 kHz Small Signal Bandwidth (-6 dB) 1 MHz ± 2% max. Cutoff Frequency Stability Amplitude Phase fc ± 0.03% /°C -3 dB -90° 0.80 fc 1.00 fc 7.10 fc 12.75 fc Filter Attenuation 40 dB 30 dB 3.01 dB 0.02 dB 1.91 dB 3.01 dB 30.0 dB 40.0 dB <-70 dB <-70 dB Narrow Band Noise Stopband Attenuation Rate 12 dB/octave Total Harmonic Distortion @ 1 kHz D72 DP72 (5 Hz - 2 MHz) 0 ± 0.1 dB to 100 kHz (non-inverting) Cutoff Frequency Stability Amplitude Phase (theoretical) D72H2B High-Pass (theoretical) DC Voltage Gain Model (theoretical) Total Harmonic Distortion @ 1 kHz D72 <-70 dB 200 mVrms typ. Wide Band Noise 400 mVrms typ. 50 mVrms typ. 50 mVrms typ. Narrow Band Noise FMA-01A FMA-01A Filter Mounting Assembly (5 Hz - 2 MHz) (20 Hz - 100 kHz) ± 2% max. 100 mVrms typ. FMA-01A 2 1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176 e-mail: [email protected] • Web Address: http://www.freqdev.com 0.10 fc 0.18 fc 1.00 fc 4.00 fc D72 & DP72 Series Pin-Out and Package Data Ordering Information Specification (25°C and Vs ± 15 Vdc) 1 All dimensions are in inches Analog Input Characteristics Impedance 10 kW min. Voltage Range ± 10 Vpeak Max. Safe Voltage ± Vs IN 1 All case dimensions ± 0.01" -Vs 8 Grid Dimensions 0.1" x 0.1" 15 GND Analog Output Characteristics Impedance 1W Linear Operating Range± 10 V 2 Maximum Current D72 ± 10 mA DP72 ± 5 mA Offset Voltage 10 mV max. 1 3 mV typ. Offset Temp. Coeff. 20 mV / °C 12 11 +Vs OUT BOTTOM VIEW ➝ 0.46 ➝ ➝ (max.) 0.88 (max.) ➝ ➝ 0.375 ➝ (max.) 0.15 ➝ ➝ 0.025 (dia.) ➝ ➝ 0.10 (min.) Power Supply (±V) Rated Voltage ± 15 Vdc Operating Range ± 5 to ± 18 Vdc Maximum Safe Voltage ± 18 Vdc Quiescent Current D72 5 mA max. 3 mA typ. Quiescent Current DP72 1.5 mA max. 600 mA typ. Temperature Operating - 0 to + 70 °C Storage - 25 to + 85 °C 0.30 (typ.) ➝ ➝ ➝ FRONT VIEW 0.09 (typ.) ➝ ➝ (typ.) SIDE VIEW Filter Mounting Assembly-See FMA-01A Ordering Information Filter Type Transfer Function L - Low Pass H - High Pass B - Butterworth L - Bessel Notes: 1. Input and output signal voltage referenced to supply common. 2. Output is short circuit protected to common. DO NOT CONNECT TO ±Vs. D72L2B-849 Hz Power Level D – Standard Power DP – Low Power 3 - 3 dB Corner Frequency e.g., 849 Hz 2.50 kHz 33.3 kHz 3. 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 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-00D72-00 3 1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176 e-mail: [email protected] • Web Address: http://www.freqdev.com Low-Pass 2-Pole Appendix A Bessel Theoretical Transfer Characteristics 1 f/fc Amp Phase Delay (Hz) (dB) (deg) (sec) 0.00 0.00 0.00 .217 0.10 -0.027 -7.79 .216 -0.108 0.20 -15.6 .216 -0.248 0.30 -23.4 .216 -0.448 0.40 -31.1 .215 .212 -0.712 0.50 -38.8 -1.044 -46.4 .208 0.60 -1.443 -53.8 .202 0.70 -1.907 -60.9 .195 0.80 -2.161 -64.4 .190 0.85 .185 -2.430 -67.7 0.90 0.95 -2.71 -71.0 .180 1.00 -3.01 -74.2 .175 1.10 -3.63 -80.3 .164 1.20 -4.28 -86.0 .153 .141 1.30 -4.95 -91.3 1.40 -5.65 -96.2 .130 .120 1.50 -6.35 -101 .110 1.60 -7.05 -105 -7.75 .101 1.70 -109 -8.44 .093 1.80 -112 1.90 -9.13 -115 .085 2.00 -9.80 -118 .079 -11.4 2.25 -125 .064 -12.9 2.50 -130 .053 -14.4 2.75 -134 .045 3.00 -15.7 -138 .038 3.25 -17.0 -141 .033 3.50 -18.2 -144 .028 4.00 -20.3 -148 .022 .014 5.00 -24.0 -155 6.00 -27.1 -159 .010 7.00 -29.7 -162 .007 8.00 -32.0 -164 .005 9.00 -34.1 -166 .004 -35.9 10.0 -167 .004 Frequency Response Amp (dB) 0 -20 -40 -60 -80 0.1 2 3 4 56781.0 2 3 4 567 10.0 Normalized Frequency(f/fc) Delay (Normalized) Delay (sec) 0.5 0.4 0.3 0.2 0.1 0.0 3 4 5 6 7 8 91.0 1.5 0.1 0.15 2 Normalized Frequency(f/fc) Step Response (V/V) Step Response 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 1.2 1.0 0.8 0.6 0.4 0.2 -0.0 0 4 1 2 3 1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176 e-mail: [email protected] Web Address: http://www.freqdev.com 4 5 Low-Pass 2-Pole Appendix A Butterworth Theoretical Transfer Characteristics 1 f/fc Amp Phase Delay (Hz) (dB) (deg) (sec) 0.00 0.00 0.00 .225 0.10 0.00 -8.13 .227 0.20 -0.01 -16.4 .234 0.30 -0.035 -25.0 .243 -0.110 0.40 -34.0 .255 .265 -0.263 0.50 -43.3 0.60 -0.529 -53.0 .271 0.70 -0.935 -62.7 .270 0.80 -1.491 -72.3 .262 0.85 -1.824 -77.0 .255 0.90 -2.191 -81.5 .246 0.95 -2.59 -85.8 .236 1.00 -3.01 -90.0 .225 1.10 -3.92 -97.7 .202 1.20 -4.88 -105 .179 1.30 -5.86 -111 .157 1.40 -6.85 -116 .138 .121 1.50 -7.83 -121 .106 1.60 -8.78 -125 .094 1.70 -9.71 -128 .083 1.80 -10.6 -131 1.90 -11.5 -134 .074 2.00 -12.3 -137 .066 2.25 -14.3 -142 .051 2.50 -16.0 -146 .041 2.75 -17.6 -149 .033 3.00 -19.1 -152 .027 3.25 -20.5 -154 .023 3.50 -21.8 -156 .020 4.00 -24.1 -159 .015 5.00 -28.0 -164 .009 6.00 -31.1 -166 .006 7.00 -33.8 -168 .005 8.00 -36.1 -170 .004 9.00 -38.2 -171 .003 -40.0 10.0 -172 .002 Frequency Response Amp (dB) 0 -20 -40 -60 -80 0.1 2 3 4 5 6 78 1.0 2 3 4 5 6 7 10.0 Normalized Frequency(f/fc) Delay (Normalized) Delay (sec) 0.5 0.4 0.3 0.2 0.1 0.0 0.1 0.15 2 3 4 5 6 7 89 1.0 1.5 Normalized Frequency(f/fc) Step Response (V/V) Step Response 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 1.2 1.0 0.8 0.6 0.4 0.2 -0.0 0 5 1 2 3 4 Normalized Time (1/f sec) 1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176 e-mail: [email protected] Web Address: http://www.freqdev.com 5 High-Pass 2-Pole Appendix A Butterworth Theoretical Transfer Characteristics 1 f/fc Amp Phase Delay (Hz) (dB) (deg) (sec) 0.10 -40.00 172 .227 0.20 -27.97 164 .234 0.30 -20.95 155 .243 -16.03 0.40 146 .255 .265 -12.31 0.50 137 0.60 0.70 0.80 0.85 0.90 0.95 1.00 1.20 1.40 1.60 1.80 2.00 2.50 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.0 -9.40 -7.13 -5.37 -4.65 -4.02 -3.48 -3.01 -1.71 -1.01 -0.62 -0.40 -0.26 -0.11 -0.05 -0.02 -0.01 -0.00 -0.00 -0.00 -0.00 -0.00 127 117 108 103 98.5 94.2 90.0 75.5 64.1 55.4 48.7 43.3 34.0 27.9 20.7 16.4 13.6 11.7 10.2 9.04 8.13 Frequency Response Amp (dB) 0 -20 -40 -60 .271 .270 .262 .255 .246 .236 .225 .179 .138 .106 .083 .066 .041 .027 .015 .009 .006 .005 .004 .003 .002 -80 0.1 2 3 4 5 6 78 1.0 2 3 4 5 6 7 10.0 Normalized Frequency(f/fc) 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 6 1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176 e-mail: [email protected] Web Address: http://www.freqdev.com