HomedatasheetD61Series

D61Series Datasheet

0.05 HZ to 1.00 HZ Fixed Frequency 32-pin Dip 4 - Pole Filters
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Description

Features, Applications

Description The D61 Series of small 4-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 D61 filters can serve in low-pass or highpass applications or be combined to create custom band-pass or band reject filters. These fully selfcontained units require no external components or adjustments. Each model comes factory tuned to a user-specified corner frequency between 0.02 Hz and 1.00 Hz and operate with low total harmonic distortion over a wide dynamic input voltage range from non-critical to +/-18V power supplies.

Features/Benefits: Low harmonic distortion and wide signal-to-noise ratio Compact x 0.5"H minimizes board space requirements. Plug-in ready-to-use, reducing engineering design and manufacturing cycle time. Factory tuned, no external clocks or adjustments needed Broad range of transfer characteristics and corner frequencies to meet a wide range of applications. Available Low-Pass Models:.Page 4-pole Bessel.2

Applications Anti-alias filtering Data acquisition systems Communication systems and electronics Medical electronics equipment and research Aerospace, navigation and sonar applications Sound and vibration testing Acoustic and vibration analysis and control Noise elimination Signal reconstruction

25 Locust St, Haverhill, Massachusetts 01830 Tel: 800/252-7074, 978/374-0761 FAX: 978/521-1839 e-mail: sales@freqdev.com Web Address: http://www.freqdev.com

Model Product Specifications Transfer Function Size Range fc D61 Theoretical Transfer Characteristics Passband Ripple

D61L4L Low-Pass 4-Pole, Bessel 1.00 Hz Appendix A Page 0.1 dB max. 0.05 dB typ. Transfer Function Size Range fc D61 Theoretical Transfer Characteristics Passband Ripple

D61L4B Low-Pass 4-Pole, Butterworth 1.00 Hz Appendix A Page 0.1 dB max. 0.05 dB typ.

D61H4B High-Pass 4-Pole, Butterworth 1.00 Hz Appendix A Page to 100 kHz to 120 kHz 120 kHz (-6dB) 1 MHz 24 dB/octave � 0.01% /�C - 100 kHz � 2% max.

Power Bandwidth Small Signal Bandwidth Stopband Attenuation Rate Cutoff Frequency Stability Amplitude Phase Filter Attenuation

Stopband Attenuation Rate Cutoff Frequency Stability Amplitude Phase Filter Attenuation
0.2 dB max. 0.1 dB typ. 0.3 dB max. 0.15 dB typ. 200 mVrms typ. 50 mVrms typ.
0.30 dB max. 0.15 dB typ. fc -100 kHz 0.20 dB max. 0.10 dB typ. 400 mVrms typ. 100 mVrms typ.

1. Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.

Specification

Analog Input Characteristics Impedance 10 kW min. Voltage Range � 10 Vpeak Max. Safe Voltage � Vs Analog Output Characteristics Impedance(Closed Loop) 1 W typ. 10 W max. Linear Operating Range V 2 Maximum Current 02 mV typ. Offset Voltage 10 mV max. Offset Temp. Coeff. / �C Power Supply (�V) Rated Voltage Operating Range Maximum Safe Voltage Quiescent Current D61 Temperature Operating Storage

Filter Type L - Low Pass H - High Pass Transfer Function 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. 3. Adjustable to zero.

4. Units operate with or without offset pin connected.

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 to 1.00 Hz.

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-00D61-00


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