D98L8B [FREQUENCYDEVICES]
8 Pole Single Power Supply Anti-Aliasing Low-Pass Filters; 8杆单电源抗混叠低通滤波器
| 型号： | D98L8B |
| 厂家： | 
FREQUENCY DEVICES, INC. |
| 描述： | 8 Pole Single Power Supply Anti-Aliasing Low-Pass Filters |
| 文件： | 总5页 (文件大小：202K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
D98 Series
1 Hz to 400 kHz*
Low Noise Fixed Frequency
8- Pole Single Power Supply
Anti-Aliasing Low-Pass Filters
Description:
Applications
The D98 Series of small 8-pole fixed-frequency,
precision active filters provide high performance
linear active filtering in a compact package, with a
broad range of corner frequencies and a choice
of Butterworth or Bessel transfer functions. These
filters are designed to work with up to 16 Bit A/D
converters. These fully self-contained units
•
•
•
•
•
•
•
•
•
Anti–alias filtering
Data acquisition systems
Communication systems and electronics
Medical electronics equipment and research
Aerospace, navigation and sonar applications
Sound and vibration testing
Acoustic and vibration analysis and control
Noise elimination
require no external components or adjustments.
Each model comes factory tuned to a user-
specified corner frequency between 1 Hz and 400
kHz* and operate with low total harmonic
distortion over a wide dynamic input voltage
range from non-critical single +5VDC to +18VDC
power supply. Each filter has a built in internal
+6VDC and -6VDC power supplies to power the
filter.
Signal reconstruction
Features/Benefits:
•
Low harmonic distortion and wide signal–
to–noise ratio to 16 bit resolution.
Available with Single or Differential inputs.
Available with DC coupled or AC coupled
inputs. (The AC corner frequency is a
single pole at 2 Hz.)
•
•
•
•
Compact 1.5"L x 2.0"W x 0.4"H minimizes
board space requirements.
Plug–in ready–to–use, reducing
engineering design and manufacturing
cycle time.
Available Low-Pass Models:
D98L8B
D98L8L
8-Pole Butterworth
8-Pole Bessel
•
•
Factory tuned, no external clocks or
adjustments needed.
Available in Butterworth or Bessel transfer
functions to meet a wide range of
applications.
•
•
Requires a single +5V to +18V power
supply to operate (The module generates
± 6 VDC internally to operate the filter).
One to one offset input that works with
your A/Ds reference output to set the
output of the filter in the center of your
A/Ds input range.
•
Available with built in gains from 0 dB to
60 dB.
* Bessel 1 Hz to 200 Khz
1
1784 Chessie Lane, Ottawa, Illinois 61350 • Tel:800/252-7074, 815/434-7800 • FAX:815/434-8176
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com
D98 Series
1 Hz to 400 kHz*
Low Noise Fixed Frequency
8- Pole Single Power Supply
Anti-Aliasing Low-Pass Filters
D98L8B
D98L8L
Transfer Function
Size
8-Pole Butterworth
1.5” x 2.0” x 0.4”
1.0 Hz to 400 kHz
8-Pole Bessel
1.5” x 2.0” x 0.4”
Range fc
1.0 Hz to 200 kHz
Theoretical Transfer
Characteristics
Passband Ripple
(theoretical)
Appendix A
Page 9
Appendix A
Page 4
0.0 dB
0.0 dB
DC Voltage Gain
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
0 ± 0.1 dB max.
0 ± 0.05 dB typ.
(non-inverting)
Stopband
Attenuation Rate
48 dB/octave
36 dB/octave
Cutoff Frequency
Stability
Amplitude
Phase
fc
± 1% max.
fc
± 1% max.
± 0.01%/°C
-3 dB
-360°
± 0.01%/°C
-3 dB
-182°
Filter Attenuation
0.12 dB
3.01 dB
60.0 dB
80.0 dB
0.80 fc
1.00 fc
2.37 fc
3.16 fc
1.91 dB
3.01 dB
60.0 dB
80.0 dB
0.80 fc
1.00 fc
4.52 fc
6.07 fc
(theoretical)
Amplitude Accuracy
0 – 0.8 fc
0 – 0.8 fc
(theoretical)
±0.2 dB max.
±0.1 dB typ.
±0.2 dB max.
±0.1 dB typ.
0.8 fc – 1.0 fc
0.8 fc – 1.0 fc
±0.3 dB max.
±0.15 dB typ.
±0.3 dB max.
±0.15 dB typ.
(THD) Total Harmonic
Distortion @ 1 kHz
<-100 dB
<-100 dB
Wide Band Noise
< 200 µVrms
<-100 dB
< 200 µVrms
<-100 dB
(5 Hz – 2 MHz)
SINAD
2
1784 Chessie Lane, Ottawa, Illinois 61350 • Tel:800/252-7074, 815/434-7800 • FAX:815/434-8176
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com
D98 Series
Specifications
Pin-Out and Package Data
Ordering Information
(25ºC and Vs + 5 VDC to + 18 VDC)
Pin-Out and Package Data
Analog Input Characteristics1
Impedance
1 MΩ
Voltage Range
Max. Safe Voltage
±6 V peak
± 6V
0.1" GRID
2.00”
Analog Output Characteristics
Impedance
GND GND
IN+
IN-
+V
OS
1 Ω typ., 10 Ω max.
(Closed Loop)
Linear Operating Range3
Maximum Current2
Offset Voltage3
± 5V
± 5 mA
± 5 VDC
1.50”
Bottom View
Power Supply (±V)
Rated Voltage
Quiescent Current
+ 5 VDC to + 18 VDC
~110 mA
Temperature Range
Operating
Storage
GND
OUT- OUT+
0ºC to +70ºC
-25ºC to +85ºC
Notes:
0.40”
FRONT VIEW
1. Input and output signal voltage referenced to supply common.
2. Output is short circuit protected to common. DO NOT CONNECT
TO ±Vs.
3. Any voltage applied to the offset pin appears at the output and an
output offset. Note that if, for instance, the offset pin is at 2 VDC the
maximum linear operating range will be ± 3V not ± 5 V. This is
because you cannot exceed +5V or -5V linear operating range. Any
voltage applied to the Offset Pin is low pass filtered to remove noise.
4. Units operate with or without offset pin connected.
PINS 0.025" DIAMETER
5. How to specify Corner Frequency. Corner frequency is specified
by attaching a three-digit frequency designator to the basic model
number. Corner frequencies can range from 1.00 Hz to 400 kHz.
ORDERING INFORMATION
Transfer Function
B = Butterworth
L = Bessel
Input Type
D = Differential
S = Single
Output Type
D = Differential
S = Single
D98L8BDAS-100 Hz-10dB
Gain
0 to 60dB
Input Coupling
A = AC Coupled Input
D = DC Coupled Input
- 3 dB Corner Frequency
e.g., 100 Hz
10.0 kHz
75.2 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.
3
1784 Chessie Lane, Ottawa, Illinois 61350 • Tel:800/252-7074, 815/434-7800 • FAX:815/434-8176
e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com
Low-Pass
8-Pole
Appendix A
Butterworth
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.50
0.00
0.00
0.00
0.00
0.00
0.00
0.00
-29.4
-59.0
-89.1
-120
-152
.816
.819
.828
.843
.867
.903
0.60
0.70
0.80
0.85
0.90
-0.001
-0.014
-0.121
-0.311
-0.738
-185
-221
-261
-283
-307
.956
1.04
1.19
1.29
1.40
2
2
3 4 5 6 7
0.1
3 4 5 6 78 1.0
10.0
Normalized Frequency(f/fc)
0.95
1.00
1.10
1.20
1.30
-1.58
-3.01
-7.48
-12.9
-18.2
-333
-360
-408
-445
-472
1.48
1.46
1.17
.873
.672
Delay (Normalized)
2.0
1.0
0.0
1.40
1.50
1.60
1.70
1.80
-23.4
-28.2
-32.7
-36.9
-40.8
-494
-511
-526
-539
-550
.540
.448
.380
.328
.287
1.90
2.00
2.25
2.50
2.75
-44.6
-48.2
-56.3
-63.7
-70.3
-560
-568
-586
-600
-611
.253
.226
.174
.139
.113
0.15 2
3
4
1.5
0.1
5 6 7 8 91.0
3.00
3.25
3.50
4.00
5.00
-76.3
-81.9
-87.1
-96.3
-112
-621
-629
-635
-646
-661
.094
.080
.069
.052
.033
Normalized Time (1/f sec)
Step Response
6.00
7.00
8.00
9.00
10.0
-125
-135
-144
-153
-160
-671
-678
-683
-687
-691
.023
.017
.013
.010
.008
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
0
1
2
3
4
5
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
9
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
8-Pole
Bessel
Appendix A
Low-Pass
Theoretical Transfer Characteristics
1
Frequency Response
0
-20
-40
-60
-80
-100
f/fc
Amp
(dB)
Phase
(deg)
Delay
(sec)
(Hz)
0.00
0.10
0.20
0.30
0.40
0.50
0.00
0.00
-18.2
-36.4
-54.7
-72.9
-91.1
.506
.506
.506
.506
.506
.506
-0.029
-0.117
-0.264
-0.470
-0.737
0.60
0.70
0.80
0.85
0.90
-1.06
-1.45
-1.91
-2.16
-2.42
-109
-128
-146
-155
-164
.506
.506
.506
.506
.506
2
2
3 4 5 6 7
0.1
3 4 5 6 781.0
10.0
Normalized Frequency(f/fc)
0.95
1.00
1.10
1.20
1.30
-2.71
-3.01
-3.67
-4.40
-5.20
-173
-182
-200
-219
-237
.506
.506
.506
.506
.506
Delay (Normalized)
1.0
0.5
0.0
1.40
1.50
1.60
1.70
1.80
-6.10
-7.08
-8.16
-9.36
-10.7
-255
-273
-291
-309
-327
.505
.504
.502
.498
.492
1.90
2.00
2.25
2.50
2.75
-12.1
-13.7
-18.1
-23.1
-28.3
-345
-362
-402
-436
-465
.482
.468
.417
.352
.291
0.15 2
3
4
5 6 7 8 9
1.5
0.1
1.0
3.00
3.25
3.50
4.00
5.00
-33.4
-38.3
-43.1
-51.8
-66.8
-489
-509
-526
-552
-587
.241
.201
.170
.126
.077
Normalized Time (1/f sec)
Step Response
1.2
1.0
0.8
0.6
0.4
0.2
6.00
7.00
8.00
9.00
10.0
-79.2
-89.8
-99.0
-107
-114
-610
-626
-638
-647
-655
.052
.038
.029
.023
.018
-0.0
-0.2
1.Normalized Group Delay:
The above delay data is normalized to a corner frequency
of 1.0Hz.The actual delay is the normalized delay divided
by the actual corner frequency (fc).
0
1
2
3
4
5
Normalized Time (1/f sec)
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
4
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
相关型号：
©2020 ICPDF网 联系我们和版权申明