D78L8B FREQUENCYDEVICES | Alldatasheet
Document overview
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Technical content
1784 Chessie Lane, Ottawa, IL 61350 Tel: 800/252-7074, 815/434-7800 FAX: 815/434-8176
e-mail: sales@freqdev.com Web Address: http://www.freqdev.com
1.0 Hz to 100 kHz
D78 & DP78 Series
32 Pin DIP
Available High-Pass Models: General Specifications: Pin-out/package data & ordering information . . . .3
Description
The D78 and DP78 Series of low-power, fixed- frequency, linear active filters are high performance, 8-pole filters in a compact package. These Butterworth and Bessel low-pass and Butterworth high-pass filters (D78 only) combine linear active filter design with the space savings of a 32-pin dual in-line package (DIP). Each model comes factory tuned to a user-specified corner frequency between 1 Hz and 100 kHz (DP78, 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.
Applications
Anti-alias filtering Vibration & shock analysis Automatic test equipment Aerospace, navigation and sonar Communication systems Medical electronics Sound and vibration testing Noise elimination Process control 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
D78 & DP78 Series 8-Pole Low-Pass and High-Pass Filters
1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-81769
e-mail: sales@freqdev.com Web Address: http://www.freqdev.com Model D78L8B & DP78L8B D78L8L & DP78L8L Model D78H8B Product Specifications Low-Pass Low-Pass High-Pass Transfer Function 8-Pole, Butterworth 8-Pole, Bessel Transfer Function 8-Pole, Butterworth, Size Size Range f c Range fc D78 1 Hz to 100 kHz 1 Hz to 100 kHz D78 1 Hz to 100 kHz DP78 1 Hz to 5 kHz 1 Hz to 5 kHz Theoretical Transfer Appendix A Appendix A Theoretical Transfer Appendix A Characteristics Page 9 Page 4 Characteristics Page 29 Passband Ripple 0.0 dB 0.0 dB Passband Ripple 0.0 dB (theoretical) (theoretical) (non-inverting) (non-inverting) Stopband Stopband Attenuation Rate 48 dB/octave 48 dB/octave Attenuation Rate 48 dB/octave Power Bandwidth 120 kHz Small Signal Bandwidth (-6 dB) 1 MHz Cutoff Frequency fc ± 2% max. f c ± 2% max. Cutoff Frequency fc ± 2% max. Stability ± 0.03% /°C ± 0.03% /°C Stability ± 0.03% /°C Amplitude -3 dB -3 dB Amplitude -3 dB Phase -360° -182° Phase -360° Total Harmonic Total Harmonic Distortion @ 1 kHz Distortion @ 1 kHz D78 <-70 dB <-70 dB D78 <-70 dB DP78 <-70 dB <-70 dB 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
(25°C and Vs ± 15 Vdc) D78 & DP78 Series Pin-Out and Package Data
Ordering Information
We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider th e 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 as sume 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 copyri ght. IN-00D78-00 Filter Type L - Low Pass H - High Pass Analog Input Characteristics Impedance 10 k W min. Voltage Range ± 10 Vpeak Max. Safe Voltage ± Vs Analog Output Characteristics Impedance 1 W Linear Operating Range± 10 V Maximum Current D78 ± 10 mA DP78 ± 5 mA Offset Voltage 20 mV max. 1 3 mV typ. Offset Temp. Coeff. 20 mV / °C typ. Power Supply (±V) Rated Voltage ± 15 Vdc Operating Range ± 5 to ± 18 Vdc Maximum Safe Voltage ± 18 Vdc Quiescent Current D78 12 mA max. 8 mA typ. Quiescent Current DP78 3.0 mA max. 1.5 mA typ. Temperature Operating - 0 to + 70 °C Storage - 25 to + 85 °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.
- 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. D78L8B-849 Hz - 3 dB Corner Frequency e.g., 849 Hz 2.50 kHz 33.3 kHz Transfer Function B - Butterworth L - Bessel Power Level D – Standard Power DP – Low Power
1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176
e-mail: sales@freqdev.com Web Address: http://www.freqdev.com Side View 0.80 0.025 dia. All dimensions are in inches All case dimensions ± 0.01" Bottom View +VSOUT -VS INGND 0.80 0.70 0.10 0.00 0.00 0.15 0.45 0.55 1.55 1.65 1.80 0.15 (min) Front View 0.30 1.80 0.50 Filter Mounting Assembly-See FMA-01A
e-mail: sales@freqdev.com Web Address: http://www.freqdev.com Normalized Time (1/f sec) Step Response (V/V) Step Response 0 1 2 3 4 5 -0.2 -0.0 0.2 0.4 0.6 0.8 1.0 1.2 Normalized Time (1/f sec) Delay (sec) Delay (Normalized) 0.1 1.02 3 4 5 6 7 8 90.0 0.5 1.0 1.50.15 Normalized Frequency(f/fc) Amp (dB) Frequency Response 0.1 1.0 10.02 3 4 5 6 78 2 3 4 5 6 7 -100 -80 -60 -40 -20 (sec) Theoretical Transfer Characteristics 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.85 0.90 0.95 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.25 2.50 2.75 3.00 3.25 3.50 4.00 5.00 6.00 7.00 8.00 9.00 10.0 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). Actual Delay = Normalized Delay Actual Corner Frequency (fc) in Hz f/fc (Hz) Amp (dB) Phase (deg) Delay -79.2 -89.8 -99.0 -107 -114 -33.4 -38.3 -43.1 -51.8 -66.8 -12.1 -13.7 -18.1 -23.1 -28.3 -6.10 -7.08 -8.16 -9.36 -10.7 -2.71 -3.01 -3.67 -4.40 -5.20 -1.06 -1.45 -1.91 -2.16 -2.42 0.00 -0.029 -0.117 -0.264 -0.470 -0.737 -610 -626 -638 -647 -655 -489 -509 -526 -552 -587 -345 -362 -402 -436 -465 -255 -273 -291 -309 -327 -173 -182 -200 -219 -237 -109 -128 -146 -155 -164 0.00 -18.2 -36.4 -54.7 -72.9 -91.1 .052 .038 .029 .023 .018 .241 .201 .170 .126 .077 .482 .468 .417 .352 .291 .505 .504 .502 .498 .492 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506 .506
0.1 1.0 10.02 3 4 5 6 78 2 3 4 5 6 7 Normalized Frequency(f/fc) -100 -80 -60 -40 -20 Amp (dB) 0.1 1.02 3 4 5 6 7 8 9 Normalized Time (1/f sec) 0.0 1.0 2.0 Delay (sec) 1.50.15 0 1 2 3 4 5 Normalized Time (1/f sec) -0.0 0.2 0.4 0.6 0.8 1.0 1.2 Step Response (V/V) Frequency Response Delay (Normalized) Step Response (sec) Theoretical Transfer Characteristics 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.85 0.90 0.95 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.25 2.50 2.75 3.00 3.25 3.50 4.00 5.00 6.00 7.00 8.00 9.00 10.0 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). Actual Delay = Normalized Delay Actual Corner Frequency (fc) in Hz f/fc (Hz) Amp (dB) Phase (deg) Delay -125 -135 -144 -153 -160 -76.3 -81.9 -87.1 -96.3 -112 -44.6 -48.2 -56.3 -63.7 -70.3 -23.4 -28.2 -32.7 -36.9 -40.8 -1.58 -3.01 -7.48 -12.9 -18.2 -671 -678 -683 -687 -691 -621 -629 -635 -646 -661 -560 -568 -586 -600 -611 -494 -511 -526 -539 -550 -0.001 -0.014 -0.121 -0.311 -0.738 0.00 0.00 0.00 0.00 0.00 0.00 -333 -360 -408 -445 -472 -185 -221 -261 -283 -307 0.00 -29.4 -59.0 -89.1 -120 -152 .023 .017 .013 .010 .008 .094 .080 .069 .052 .033 .253 .226 .174 .139 .113 .540 .448 .380 .328 .287 1.48 1.46 1.17 .873 .672 .956 1.04 1.19 1.29 1.40 .816 .819 .828 .843 .867 .903 e-mail: sales@freqdev.com Web Address: http://www.freqdev.com
0.1 1.0 10.02 3 4 5 6 78 2 3 4 5 6 7 Normalized Frequency(f/fc) -100 -80 -60 -40 -20 Amp (dB) Frequency Response (sec) Theoretical Transfer Characteristics 0.10 0.20 0.30 0.40 0.50 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 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). Actual Delay = Normalized Delay Actual Corner Frequency (fc) in Hz f/fc (Hz) Amp (dB) Phase (deg) Delay 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -5.15 -3.01 -0.229 -0.020 -0.002 59.0 49.0 42.1 36.8 32.7 29.4 -35.5 -24.8 -15.6 -11.6 -8.06 -160 -112 -83.7 -63.7 -48.2 386 360 275 226 194 170 152 120 99.2 74.0 535 499 459 437 413 691 661 631 600 568 0.033 0.023 0.017 0.013 0.010 0.008 0.287 0.226 0.139 0.094 0.052 1.48 1.46 0.873 0.540 0.380 .956 1.04 1.19 1.29 1.40 0.819 0.828 0.843 0.867 0.903 e-mail: sales@freqdev.com Web Address: http://www.freqdev.com