D70 Series
100 Hz to 50 kHz
Fixed Frequency
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
DIP Filters
8-, 6-, 4-Pole Filters
Available Low-Pass Models:
. . . . . . . . . . .Page
D70L8B
D70L6B
D70L4B
D70L8L
D70L6L
D70L4L
8-pole
6-pole
4-pole
8-pole
6-pole
4-pole
Butterworth
Butterworth
Butterworth
Bessel . . . .
Bessel . . . .
Bessel . . . .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.2
.2
.2
.3
.3
.3
Available High-Pass Models:
D70H8B
D70H6B
D70H4B
8-pole Butterworth . . . . . . . . . . . . . . .4
6-pole Butterworth . . . . . . . . . . . . . . .4
4-pole Butterworth . . . . . . . . . . . . . . .4
General Specifications:
Pin-out/package data & ordering information . . . .5
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
D70 Series
Specification
(25°C and Vs ± 15 Vdc)
Analog Input Characteristics
1
Impedance
10 kW min.
Voltage Range
± 10 Vpeak
Max. Safe Voltage
± Vs
Analog Output Characteristics
Impedance
1
W
Linear Operating Range
± 10 V
Maximum Current
2
± 10 mA
3
Offset Voltage
± 10 mV
Offset Temp. Coeff.
50
mV
/°C
Power Supply (±Vs)
Rated Voltage
Operating Range
Maximum Safe Voltage
Quiescent Current (max.)
8 Pole
6 Pole
4 Pole
Temperature
Operating
Storage
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.
Pin-Out and Package Data
Ordering Information
± 15 Vdc
± 5 to ± 18 Vdc
± 18 Vdc
± 18 mA
± 15 mA
± 10 mA
0 to + 70°C
- 25 to + 85°C
Recommend PC board hole 0.025”
Filter Mounting Assembly-See FMA-01A
Ordering Information
Filter Type
Transfer Function
B
- Butterworth
L
- Bessel
L
- Low Pass
H
- High Pass
Optional Offset Adjustment
D70L8B-849 Hz
No. of Poles
8
6
4
-3 dB Corner Frequency
e.g., 849 Hz
2.50 kHz
33.3 kHz
4
4.
How to specify Corner Frequencies:
Corner frequencies are specified by attaching a three digit frequency designa-
tor to the basic model number. Corner frequencies can range from 100 Hz to
50.0 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-00D70-01
5
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
京公网安备 11010802033920号
EEWORLD
