Description The D74 and DP74 Series of low-power, fixedfrequency, linear active filters are high performance, 4-pole filters in a compact package. These Butterworth and Bessel low-pass and Butterworth high-pass filters (D74 only) combine linear active filter design with the space savings 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 to 5kHz). These fully self-contained units require no external components or adjustments and operate with dynamic input voltage range from non-critical 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 Noise elimination Process control Available D74L4L DP74L4L Low-Pass Models:. Butterworth.2 4-pole Butterworth (Low Bessel.2 4-pole Bessel (Low Power).2
Available High-Pass Models: 4-pole Butterworth.2 General Specifications: Pin-out/package data & ordering information.3
25 Locust St, Haverhill, Massachusetts 01830 Tel: 800/252-7074, 978/374-0761 FAX: 978/521-1839 e-mail: email@example.com Web Address: http://www.freqdev.com
Model Product Specifications Transfer Function Size Range D74 DP74 Theoretical Transfer Characteristics Passband Ripple
& DP74L4L Low-Pass 4-Pole, Bessel to 100 kHz to 5 kHz Appendix A Page 0.1 dB typ. Transfer Function Size Range fc Theoretical Transfer Characteristics Passband RippleStopband Attenuation Rate Power Bandwidth Small Signal Bandwidth
Cutoff Frequency Stability Amplitude Phase Filter Attenuation
Total Harmonic Distortion @ 1 kHz D74 DP74 Wide Band Noise
Total Harmonic Distortion @ 1 kHz D74 Wide Band Noise
Analog Input Characteristics Impedance 10 kW min. Voltage Range � 10 Vpeak Max. Safe Voltage � Vs Analog Output Characteristics Impedance 1W Linear Operating Range� V 2 Maximum Current 5 mA Offset Voltage 10 mV max. 3 mV typ. Offset Temp. Coeff. / �C Power Supply (�V) Rated Voltage � 15 Vdc Operating Range � 18 Vdc Maximum Safe Voltage � 18 Vdc Quiescent Current 5 mA max. 3 mA typ. Quiescent Current 1 mA max. 600 mA typ. Temperature Operating 70 �C Storage 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.All dimensions are in inches All case dimensions � 0.01" Grid Dimensions x 0.1"
Filter Type L - Low Pass H - High Pass Transfer Function B - Butterworth L - Bessel
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 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-00D74-01