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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
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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
Low-Pass Butterworth
Model Product Specifications Transfer Function Size Range fc Theoretical Transfer Characteristics Passband Ripple
(theoretical)
Fixed Frequency 1 Hz to 100 kHz
5BAF-LPBU6 5BAF-LPBU4
5BAF-LPBU8
8-Pole Butterworth Std. 5B 1.00 Hz to 100 kHz Appendix A Page 9 0.0 dB 0 0.1 dB typ 1 0.3% 48 dB/octave 2% max. -360 0.12 dB 3.01 dB 60.0 dB 80.0 dB 1.0 M min. 20 V <-70 dB min. 10 V peak 40 V 50 Vrms max. 0.80 fc 1.00 fc 2.37 fc 3.16 fc
6-Pole Butterworth Std. 5B 1.00 Hz to 100 kHz Appendix A Page 8 0.0 dB 0 0.1 dB typ 1 0.3% 36 dB/octave 2% max. -270 0.29 dB 3.01 dB 60.0 dB 80.0 dB 1.0 M min. 20 V <-70 dB min. 10 V peak 40 V 50 Vrms max. 0.80 fc 1.00 fc 3.16 fc 4.46 fc
4-Pole Butterworth Std. 5B 1.00 Hz to 100 kHz Appendix A Page 7 0.0 dB 0 0.1 dB typ. 1 0.3% 24 dB/octave 2% max. -180 0.67 dB 3.01 dB 60.0 dB 80.0 dB 1.0 M min. 20 V <-70 dB min. 10 V peak 40 V 50 Vrms max. 0.80 fc 1.00 fc 5.62 fc 10.00 fc
DC Voltage Gain
(non-inverting)
Differential Gain Stopband Attenuation Rate Accuracy fc Phase Filter Attenuation (theoretical)
Impedance Com. Mode Voltage Range Com. Mode Rejection Ratio @ 1 kHz Linear Voltage Range Max. Safe Voltage
(Power ON or OFF)
Narrow Band Noise
(5 Hz - 100 kHz)
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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
Low-Pass Bessel
Model Product Specifications Transfer Function Size Range fc Theoretical Transfer Characteristics Passband Ripple
(theoretical)
Fixed Frequency 1 Hz to 100 kHz
5BAF-LPBE6 5BAF-LPBE4
5BAF-LPBE8
8-Pole Bessel Std. 5B 1.00 Hz to 100 kHz Appendix A Page 4 0.0 dB 0 0.1 dB typ 1 0.3% 48 dB/octave 2% max. -182 1.91 dB 3.01 dB 60.0 dB 80.0 dB 1.0 M min. 20 V <-70 dB min. 10 V peak 40 V 50 Vrms max. 0.80 fc 1.00 fc 4.52 fc 6.07 fc
6-Pole Bessel Std. 5B 1.00 Hz to 100 kHz Appendix A Page 3 0.0 dB 0 0.1 dB typ 1 0.3% 36 dB/octave 2% max. -155 1.89 dB 3.01 dB 60.0 dB 80.0 dB 1.0 M min. 20 V <-70 dB min. 10 V peak 40 V 50 Vrms max. 0.80 fc 1.00 fc 5.41 fc 7.99 fc
4-Pole Bessel Std. 5B 1.00 Hz to 100 kHz Appendix A Page 2 0.0 dB 0 0.1 dB typ. 1 0.3% 24 dB/octave 2% max. -121 1.86 dB 3.01 dB 60.0 dB 80.0 dB 1.0 M min. 20 V <-70 dB min. 10 V peak 40 V 50 Vrms max. 0.80 fc 1.00 fc 8.48 fc 15.12 fc
DC Voltage Gain
(non-inverting)
Differential Gain Stopband Attenuation Rate Accuracy fc Phase Filter Attenuation (theoretical)
Impedance Com. Mode Voltage Range Com. Mode Rejection Ratio @ 1 kHz Linear Voltage Range Max. Safe Voltage
(Power ON or OFF)
Narrow Band Noise
(5 Hz - 100 kHz)
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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
High-Pass Butterworth
Model Product Specifications Transfer Function Size Range fc Theoretical Transfer Characteristics Passband Ripple
(theoretical)
Fixed Frequency 1 Hz to 100 kHz
5BAF-HPBU6 5BAF-HPBU4
5BAF-HPBU8
8-Pole Butterworth Std. 5B 1.00 Hz to 100 kHz Appendix A Page 29 0.0 dB 0 0.1dB to 100kHz 1 0.3% 48 dB/octave (-6 dB) 1 MHz 120 kHz 2% max. -360 80.0 dB 60.0 dB 3.01 dB 00.0 dB 1.0 M min. 20 V <-70 dB min. 10 V peak 40 V 100 Vrms max. 0.31 fc 0.42 fc 1.00 fc 2.00 fc
6-Pole Butterworth Std. 5B 1.00 Hz to 100 kHz Appendix A Page 28 0.0 dB 0 0.1dB to 100kHz 1 0.3% 36 dB/octave (-6 dB) 1 MHz 120 kHz 2% max. -270 80.0 dB 60.0 dB 3.01 dB 00.0 dB 1.0 M min. 20 V <-70 dB min. 10 V peak 40 V 100 Vrms max. 0.21 fc 0.32 fc 1.00 fc 2.50 fc
4-Pole Butterworth Std. 5B 1.00 Hz to 100 kHz Appendix A Page 27 0.0 dB 0 0.1dB to 100kHz 1 0.3% 24 dB/octave (-6 dB) 1 MHz 120 kHz 2% max. -180 80.0 dB 60.0 dB 3.01 dB 00.0 dB 1.0 M min. 20 V <-70 dB min. 10 V peak 40 V 100 Vrms max. 0.10 fc 0.18 fc 1.00 fc 4.00 fc
DC Voltage Gain
(non-inverting)
Differential Gain Stopband Attenuation Rate Small Signal Bandwidth Power Bandwidth Accuracy fc Phase Filter Attenuation (theoretical)
Impedance Com. Mode Voltage Range Com. Mode Rejection Ratio @ 1 kHz Linear Voltage Range Max. Safe Voltage
(Power ON or OFF)
Narrow Band Noise
(5 Hz - 100 kHz)
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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 typ. 10 max. Linear Operating Range 10V pk Maximum Current 2.0mA Offset Voltage 3mV typ. Offset Temp. Coeff. 100 V/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 + 85C -40 to + 85C
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 k resistor and 0.0022 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 F 1.5 k
Ordering Information
BE - Bessel-LP Only BU - Butterworth Corner Frequency4 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-fc
# 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
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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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