5BAF Series
Lowpass & Highpass
Description
Differential Fixed
Frequency Filters
The 5BAF Series are differential-input low-pass and
high-pass filters that are pin-out and package
compatible with industry-standard 5B Series signal
conditioning modules. Each filter comes factory
tuned to a user specified corner or center frequency
from 1 Hz to 100 kHz. These filters are ideally suited
to sharply limit A/D converter bandwidth to eliminate
unwanted signals and noise.
To serve real-world applications, all 5BAF Series
filters are configured with a differential input having a
common mode rejection ratio of <-70 dB (min.) at 1
kHz. A self contained dc-to-dc converter enables the
5BAF filters to operate from a non-critical +5, ±10%
volt power source, key in many systems since +5V
logic power is readily available.
Features/Benefits:
• The 10 volt input range with overall gain of 1
provides an excellent match to both the transducer
output and the data acquisition board input.
• 5BAF modules allow for partitioning between
system segments providing a means to minimize
ground loops.
• 5B plug-in compatible provides quick and easy
insertion.
• Factory tuned, no external clocks or adjustments
needed.
• Broad range of corner or center frequencies to
meet a wide range of applications.
Available Low-Pass Models:
. . . . . . . . . . . . . .Page
5BAF-LPBE8
8-Pole Bessel . . . . . . . . . . . . . . .2
5BAF-LPBU8
8-Pole Butterworth . . . . . . . . . . . .2
5BAF-LPBE6
6-Pole Bessel . . . . . . . . . . . . . . .2
5BAF-LPBU6
6-Pole Butterworth . . . . . . . . . . . .2
5BAF-LPBE4
4-Pole Bessel . . . . . . . . . . . . . . .3
5BAF-LPBU4
4-Pole Butterworth . . . . . . . . . . . .3
Available High-Pass Models:
5BAF-HPBU8
8-Pole Butterworth . . . . . . . . . . . .4
5BAF-HPBU6
6-Pole Butterworth . . . . . . . . . . . .4
5BAF-HPBU4
4-Pole Butterworth . . . . . . . . . . . .4
General Specifications:
Pin-Out/Package Data/Order Information
. . . . . .5
Note:
Contact factory for lower frequency, noise or
distortion options.
Applications
• Vibration analysis
• Industrial and process control
• Noise reduction
• Signal reduction
• Test systems
1
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
5BAF Series
Specifications
Analog Input Characteristics
See transfer function specifications.
Analog Output Characteristics
Impedance (Closed Loop)
<1
Ω
typ.
10
Ω
max.
Linear Operating Range
±10V pk
Maximum Current
±2.0mA
Offset Voltage
±3mV typ.
Offset Temp. Coeff.
±100
µV/°C
Gain Drift
3
± 30 ppm/°C
Output Load
See note 3
Power Supply (±Vs)
Rated Voltage
Quiescent Current
Package Data
1,2
1
Pin-Out, Package Data
And Order Information
Pin Designations
23
NA
Vout
NA
POWER COM
INHI
NA
NA
22
21
20
19
18
17
16
6
5
4
3
2
1
NA
NA
INLO
+ 5V
I/O COM
NA
NA
Bottom View
+ 5V ± 0.5 Vdc
Typ.
Max.
8P 113mA 150mA
6P 101mA 127mA
4P 75mA 98mA
-25 to + 85°C
-40 to + 85°C
5BAF
Filter Series
2.250
(57.2)
0.590
(15.0)
0.350
(8.6)
0.075
(1.8)
typ
0.150
(3.8)
0.375 (9.2)
Temperature
Operating
Storage
0.525 (12.9)
Notes:
1. Input and output signal voltage referenced to
I/O COM.
2. Output is short circuit protected to common.
DO NOT CONNECT TO +5V or POWER COM.
3. Output can drive a series 1.5 kΩ resistor and
0.0022
µ
F capacitor without slew rate limiting
with a ± 10 V square wave input.
5BAF - LPBU6
6 Pole Butterworth Filter
20.0 kHz
Made in the USA
2.250
(57.2)
0.275 (6.7)
INSERT
for
3mm
SCREW
2.250
(57.2)
0.475 (11.6)
0.375 (9.5)
0.375
(9.5)
1.175
(29.8)
1.605
(41.9)
0.100 (2.5)
0.150 (3.8)
0.250 (6.3)
SOCKET
for
0.038 PIN
0.590
(15.0)
Dimensions in inches (mm)
0.0022
µF
1.5 k
Ω
Ordering Information
BE
- Bessel-LP Only
BU
- Butterworth
Corner Frequency
4
1 Hz to 100 kHz
4.
How to specify Corner Frequencies:
Corner frequencies are specified by attaching a
three digit frequency designator to the basic
model number. Corner frequencies can range
from 1 Hz to 50 kHz.
5BAF-LPBE6-f
c
# of Poles
LP
- Lowpass
HP
- Highpass
4, 6, 8
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-005BAF-03
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
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