Description The D01 Series of small, fixed-frequency, linear active DIP filters provide high performance linear, multi-pole filtering in a compact package, with a broad range of pole configurations. These Butterworth and Bessel low-pass filters combine the excellent performance of linear multi-pole filter design with the space saving of the dual in-line package (DIP). Each model comes factory tuned to a user-specified corner frequency between 100Hz and 1 MHz. These fully self-contained units require no external components or adjustments. They operate with dynamic input voltage range from non-critical ±2.5V to ±7.5V power supplies. Features/Benefits: Low harmonic distortion and wide signal-to-noise ratio to 12 bit resolution 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 Broad range of pole configurations aner frequencies to meet a wide range of applications     Applications Anti-alias filtering Data acquisition systems Video systems Communication systems and electronics Medical electronics equipment and research Aerospace, navigation and sonar applications Sound and vibration testing Real and compressed time data analysis Noise elimination Signal reconstruction Available Low-Pass Models: D01L8B 8-pole Butterworth D01L6B 6-pole Butterworth D01L4B 4-pole Butterworth D01L8L 8-pole Bessel D01L6L 6-pole Bessel D01L4L 4-pole Bessel Fixed Frequency 8-, 6-, 4-Pole Low-Pass Filters Model D01L8B D01L6B D01L4B Product Specifications Transfer Function Size Range fc 8-Pole, Butterworth 1.80” x 0.80” x 0.30” 100 Hz to 1 MHz 6-Pole, Butterworth 1.80” x 0.80” x 0.30” 100 Hz to 1 MHz 4-Pole, Butterworth 1.80” x 0.80” x 0.30” 100 Hz to 1 MHz Theoretical Transfer Characteristics Click to view Click to view Click to view Passband Ripple    (theoretical) 0.0 dB 0.0 dB 0.0 dB DC Voltage Gain    (non-inverting) 0 ± 0.1 dB max. 0 ± 0.02 dB typ. 0 ± 0.1 dB max. 0 ± 0.02 dB typ. 0 ± 0.1 dB max. 0 ± 0.02 dB typ. Stopband Attenuation Rate 48 dB/octave 36 dB/octave 24 dB/octave Cutoff Frequency   Stability   Amplitude   Phase fc              ± 5% max. ± 0.02% /°c - 3 dB -360° fc              ± 5% max. ± 0.02% /°c - 3 dB -270° fc              ± 5% max. ± 0.02% /°c - 3 dB -180° Filter Attenuation    (theoretical) 0.12 dB       0.80 fc 3.01 dB       1.00 fc 60.0 dB       2.37 fc 80.0 dB       3.16 fc 0.12 dB       0.80 fc 3.01 dB       1.00 fc 60.0 dB       3.16 fc 80.0 dB       4.64 fc 0.12 dB      0.80 fc 3.01 dB       1.00 fc 60.0 dB       5.62 fc 80.0 dB       10.0 fc Phase Match1         Amplitude Accuracy1         Total Harmonic Distortion @ 2.5VRMS 1 kHz        < -80 dB typ. 100 kHz    < -65 dB typ. 1 kHz        < -80 dB typ. 100 kHz    < -65 dB typ. 1 kHz        < -80 dB typ. 100 kHz    < -65 dB typ. Wide Band Noise    (5 Hz - 2 MHz) 250 µVrms typ. 160 µVrms typ. 70 µVrms typ. Narrow Band Noise (5 Hz - 100 kHz) 30 µVrms typ. 20 µVrms typ. 20 µVrms typ. Filter Mounting Assembly NA NA NA   1. Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot. NA - Not available Fixed Frequency 8-, 6-, 4-Pole Low-Pass Filters Model D01L8L D01L6L D01L4L Product Specifications Transfer Function Size Range fc 8-Pole, Bessel 1.80” x 0.80” x 0.30” 100 Hz to 1 MHz 6-Pole, Bessel 1.80” x 0.80” x 0.30” 100 Hz to 1 MHz 4-Pole, Bessel 1.80” x 0.80” x 0.30” 100 Hz to 1 MHz Theoretical Transfer Characteristics Click to view Click to view Click to view Passband Ripple    (theoretical) 0.0 dB 0.0 dB 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. 0 ± 0.1 dB max. 0 ± 0.05 dB typ. Stopband Attenuation Rate 48 dB/octave 36 dB/octave 24 dB/octave Cutoff Frequency   Stability   Amplitude   Phase fc              ± 5% max. ± 0.02% /°c - 3 dB -182° fc              ± 5% max. ± 0.02% /°c - 3 dB -155° fc              ± 5% max. ± 0.02% /°c - 3 dB -121° Filter Attenuation    (theoretical) 1.91 dB       0.80 fc 3.01 dB       1.00 fc 60.0 dB       4.52 fc 80.0 dB       6.07 fc 1.91 dB       0.80 fc 3.01 dB       1.00 fc 60.0 dB       5.41 fc 80.0 dB       7.99 fc 1.91 dB       0.80 fc 3.01 dB       1.00 fc 60.0 dB       8.48 fc 80.0 dB       15.12 fc Phase Match1        Amplitude Accuracy1        Total Harmonic Distortion @ 2.5VRMS 1 kHz        < -80 dB typ. 100 kHz    < -65 dB typ. 1 kHz        < -80 dB typ. 100 kHz    < -65 dB typ. 1 kHz        < -80 dB typ. 100 kHz    < -65 dB typ. Wide Band Noise    (5 Hz - 2 MHz) 250 µVrms typ. 160 µVrms typ. 70 µVrms typ. Narrow Band Noise (5 Hz - 100 kHz) 30 µVrms typ. 20 µVrms typ. 20 µVrms typ. Filter Mounting Assembly NA NA NA   1. Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot. NA - Not available Specifications (@ 25°C and Vs ± 5 Vdc) Analog Input Characteristics 1 Impedance: 250 kΩ min. Voltage Range: ± 3.5 Vpeak Max. SafeVoltage: ± Vs Analog Output Characteristics Impedance (Closed Loop): <1 Ω typ. Linear Operating Range: ± 5V Maximum Current 2: ± 30 mA Offset Voltage 3: ±10 mV max. Offset Temp. Coeff.: 50 µV / °C Notes: Input and output signal voltage referenced to supply common. Output is short circuit protected to common. DO NOT CONNECT TO ± Vs. Adjustable to zero. Units operate with or without offset pin connected. Power Supply (± Vs) Rated Voltage: ± 7.5 Vdc Operating Range: ± 2.5 to ± 7.5 Vdc Maximum Safe Voltage: ± 7.5 Vdc Quiescent Current: 8-pole - ± 30 mA max. 6-pole - ± 23 mA max. 4-pole - ± 15 mA max. Temperature Operating: 0 to + 70°C Storage: -25 to+85°C 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 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.