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

Fixed Frequency

D74 & DP74 Series

16 Pin DIP

4-Pole Filters

D74L4B

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

DP74L4B 4-pole Butterworth (Low Power) . . . . .2

D74L4L

4-pole Bessel . . . . . . . . . . . . . . . . . . .2

DP74L4L 4-pole Bessel (Low Power) . . . . . . . .2

Available High-Pass Models:

D74H4B

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

General Specifications:

Pin-out/package data & ordering information . . . .3

Description

The D74 and DP74 Series of low-power, fixed-

frequency, 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 of 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 (DP74, 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