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

100 Hz to 50 kHz

Fixed Frequency

D70 Series

DIP Filters

8-, 6-, 4-Pole Filters

Description

The D70 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 and Butterworth

high-pass filters combine the excellent performance

of linear multi-pole filter design with the space sav-

ing of the dual in-line package (DIP). Each model

comes factory tuned to a user-specified corner fre-

quency between 100Hz and 50kHz. These fully

self-contained units require no external compo-

nents or adjustments. They operate with dynamic

input voltage range from non-critical ±5V to ±18V

power supplies.

Features/Benefits:

• 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

• Low harmonic distortion and wide signal-to-noise

ratio to 14 bit resolution

• Broad range of pole configurations and corner fre-

quencies to meet a wide range of applications

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

• Real and compressed time data analysis

• Noise elimination

• Signal reconstruction

D70L8B

8-pole Butterworth . . . . . . . . . . . . . . .2

D70L6B

6-pole Butterworth . . . . . . . . . . . . . . .2

D70L4B

4-pole Butterworth . . . . . . . . . . . . . . .2

D70L8L

8-pole Bessel . . . . . . . . . . . . . . . . . . .3

D70L6L

6-pole Bessel . . . . . . . . . . . . . . . . . . .3

D70L4L

4-pole Bessel . . . . . . . . . . . . . . . . . . .3

Available High-Pass Models:

D70H8B

8-pole Butterworth . . . . . . . . . . . . . . .4

D70H6B

6-pole Butterworth . . . . . . . . . . . . . . .4

D70H4B

4-pole Butterworth . . . . . . . . . . . . . . .4

General Specifications:

Pin-out/package data & ordering information . . . .5