D100L Series
100 Hz to 100 kHz
Low Noise Fixed Frequency
Description:
D100L Series filters are low noise and distortion
4- and 8-pole, Butterworth or Bessel fixed
frequency low-pass filters. These filters feature
near theoretical low noise and distortion
performance, by providing up to -120 dB noise
floors (20-Bit). D100L’s take advantage of FDI’s
design expertise utilizing high performance
amplifiers and surface-mount technology to
provide design engineers with precision signal
conditioning solutions in a compact package.
These fully self-contained units require no
external components or adjustments.
Each
D100L comes factory tuned to a user specified
corner frequency between 100 Hz to 100 kHz and
operate with low harmonic distortion over an input
voltage range to ±10 V.
Available Low-Pass Models:
D100L4L
4-Pole Bessel
D100L4B
4-Pole Butterworth
D100L8L
8-Pole Bessel
D100L8B
8-Pole Butterworth
General Specifications
Pin-out/package data & order information
Page
2
2
2
2
3
4- and 8- Pole
Low-Pass Filters
Features/Benefits:
•
Small 32-pin DIP (1.8"L x 0.8"W) footprint
minimizes board space requirements.
•
Plug-in ready-to-use, reducing engineering
design and manufacturing cycle time.
•
Factory tuned, no external clocks or
adjustments needed
•
Broad range of corner frequencies to meet a
wide range of applications.
Applications
•
Transducer output filtering:
•
Production test instrumentation
•
Medical electronics equipment and research
•
Noise and harmonic analysis
•
Frequency spectrum analysis
1
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
D100L Series
100 Hz to 100 kHz
Low Noise Fixed Frequency
D100L4B
Product Specifications
4-Pole Butterworth
Transfer Function
Size
Range f
c
Theoretical Transfer
Characteristics
Passband Ripple
(
theoretical)
DC Voltage Gain
(non-inverting)
4- and 8- Pole
Low-Pass Filters
D100L4L
4-Pole Bessel
1.8” x 0.8” x 0.3”
100 Hz to 100 kHz
Appendix A
Page 2
0.0 dB
0
±
0.2 dB typ.
0
±
0.4 dB max.
24 dB/octave
f
c
±
1% max.
±
0.01%/°C
-3 dB
-121°
1.86 dB
3.01 dB
30.0 dB
40.0 dB
0.80 f
c
1.00 f
c
3.50 f
c
4.72 f
c
D100L8B
8-Pole Butterworth
1.8” x 0.8” x 0.3”
100 Hz to 100 kHz
Appendix A
Page 9
0.0 dB
0
±
0.2 dB typ.
0
±
0.4 dB max.
48 dB/octave
f
c
±
1% max.
±
0.01%/°C
-3 dB
-360°
0.12 dB
3.01 dB
60.0 dB
80.0 dB
0.80 f
c
1.00 f
c
2.37 f
c
3.16 f
c
D100L8L
8-Pole Bessel
1.8” x 0.8” x 0.3”
100 Hz to 100 kHz
Appendix A
Page 4
0.0 dB
0
±
0.2 dB typ.
0
±
0.4 dB max.
48 dB/octave
f
c
±
1% max.
±
0.01%/°C
-3 dB
-182°
1.91 dB
3.01 dB
60.0 dB
80.0 dB
0.80 f
c
1.00 f
c
4.52 f
c
6.07 f
c
1.8” x 0.8” x 0.3”
100 Hz to 100 kHz
Appendix A
Page 7
0.0 dB
0
±
0.2 dB typ.
0
±
0.4 dB max.
24 dB/octave
±
1% max.
f
c
±
0.01%/°C
-3 dB
-180°
0.67 dB
3.01 dB
30.0 dB
40.0 dB
0.80 f
c
1.00 f
c
2.37 f
c
3.16 f
c
Stopband
Attenuation Rate
Cutoff Frequency
Stability
Amplitude
Phase
Filter Attenuation
(theoretical)
Phase Match
1
0 – f
c
±
2.0° max
±
1.0° typ
0 – f
c
±0.2
dB max
±0.1
dB typ
0 – f
c
±
2.0° max
±
1.0° typ
0 – f
c
±0.2
dB max
±0.1
dB typ
0 – f
c
±
2.0° max
±
1.0° typ
0 – f
c
±0.2
dB max
±0.1
dB typ
0 – f
c
±
2.0° max
±
1.0° typ
0 – f
c
±0.2
dB max
±0.1
dB typ
Amplitude Accuracy
(theoretical)
(THD) Total Harmonic
Distortion @ 10 Vp-p
F
C
≤1.0
kHz
F
C
≤20
kHz
F
C
≤100
kHz
Narrow Band Noise
100 kHz BW @ 20V p-p
<-120 dB max.
<-120 dB max.
<-110 dB max.
<-120 dB max.
<-120 dB max.
<-110 dB max.
<-120 dB max.
<-120 dB max.
<-105 dB max.
<-120 dB max.
<-120 dB max.
<-105 dB max.
F
C
≤1.0
kHz
F
C
≤20
kHz
F
C
≤100
kHz
Filter Mounting
Assembly
2
1.
2.
(µV rms)
7.0 typ., 12 max.
7.0 typ., 12 max.
22 typ., 40 max.
FMA-01S
(µV rms)
7.0 typ., 12 max.
7.0 typ., 12 max.
22 typ., 40 max.
FMA-01S
(µV rms)
12 typ., 22 max.
12 typ., 22 max.
40 typ., 70 max.
FMA-01S
(µV rms)
12 typ., 22 max.
12 typ., 22 max.
40 typ., 70 max.
FMA-01S
Unit to unit match for the same transfer function, set to the same frequency and operating configuration, and from the same manufacturing lot.
Use I/O jumpers to bypass input and output buffers, for low noise operation. With FMA, D100 distortion specs at 50k to 100kHz may degrade slightly.
2
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
D100L Series
Specifications
(25ºC and Vs ± 15 Vdc)
Pin-Out and Package Data
Ordering Information
0.80"(max)
Analog Input Characteristics
Impedance
Voltage Range
Max. Safe Voltage
1
1.0 kΩ min.
±10
V
peak
±
Vs
0.025" (dia)
F
O
<10 kHz
F
O
>10 kHz
0.50"(max)
0.30"(max)
0.15" (min)
Analog Output Characteristics
Load impedance
Linear Operating Range for THD
Operating Range for low Noise
Current
2
@ (Vs @
±15V)
Offset Voltage
3
Offset Temp. Coefficient
Power Supply (±V
S
)
Rated Voltage
Operating Range
Quiescent Current D100L4
D100L8
Temperature Range
Operating
Storage
1k
Ω
min.
±
5V
±
10V
10 mA max.
2 mV typ.
20 mV max.
50
µV/ºC.
0.10"(typ)
0.80"
0.70"
1.80"(max)
F
O
<10 kHz
F
O
>10 kHz
All dimensions are in inches
All case dimensions ± 0.01"
5
15 16
±15V
±5V
min.
±18V
max.
40 mA max.
80 mA max.
0ºC to +70ºC
-25ºC to +85ºC
1
OUT
+VS
-VS OS
Bottom View
GND
0.10"
0.00"
0.00"
0.15"
29
IN
17
0.45"
0.55"
1.55"
1.65"
DC Offset Adjustment
+Vs
Do not connect
if trim is not
required.
20 k
(Cermet)
ORDERING INFORMATION
Filter type
L = Low Pass
Transfer Function
B= Butterworth
L = Bessel
4
Os
D100L4B-10.0 kHz
-Vs
1.80"
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.
4. Units operate with or without offset pin connected.
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 100 Hz to 100 kHz.
# Poles
4 or 8
- 3 dB Corner Frequency
e.g.,
849 Hz
2.50 kHz
33.3 kHz
5
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.
PR-D100L
3
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
Low-Pass
4-Pole
Appendix A
Theoretical Transfer Characteristics
1
f/fc
Amp
Phase
Delay
(Hz)
(dB)
(deg)
(sec)
0.00
0.00
0.00
.336
0.10
-0.028
-12.1
.336
0.20
-0.111
-24.2
.336
0.30
-0.251
-36.3
.336
0.40
-0.448
-48.4
.336
0.50
-0.705
-60.6
.336
0.60
-1.02
-72.7
.336
0.70
-1.41
-84.8
.336
0.80
-1.86
-96.8
.335
0.85
-2.11
-103
.334
0.90
-2.40
-109
.333
0.95
-2.69
-115
.332
1.00
-3.01
-121
.330
1.10
-3.71
-133
.325
1.20
-4.51
-144
.318
1.30
-5.39
-156
.308
-166
1.40
-6.37
.295
-177
1.50
-7.42
.280
-187
1.60
-8.54
.263
-195
1.70
-9.71
.246
-204
1.80
-10.9
.228
1.90
-12.2
-212
.211
2.00
-13.4
-219
.194
2.25
-16.5
-235
.158
2.50
-19.5
-248
.129
2.75
-22.4
-259
.107
-267
3.00
-25.1
.089
-275
3.25
-27.6
.076
-281
3.50
-30.0
.065
-291
4.00
-34.4
.049
-305
5.00
-41.9
.031
6.00
-315
.021
-48.1
7.00
-321
.016
-53.4
8.00
-326
.012
-58.0
9.00
-330
.009
-62.0
10.0
-333
.008
-65.7
Bessel
Frequency Response
0
Amp (dB)
-20
-40
-60
-80
-100
0.1
2
1.0
2 3 4 5 6 7
10.0
Normalized Frequency(f/fc)
3 4 5 6 78
Delay
(Normalized)
1.0
Delay (sec)
0.5
0.0
0.1
0.15 2
1.0
1.5
Normalized Time (1/f sec)
3
4
5 6 7 89
Step Response
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
-0.2
0
Step Response (V/V)
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).
Normalized Delay
Actual Delay =
Actual Corner Frequency (fc) in Hz
1
2
3
4
Normalized Time (1/f sec)
5
2
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
Theoretical Transfer Characteristics
1
f/fc
Amp
Phase
Delay
(Hz)
(dB)
(deg)
(sec)
0.00
0.00
0.00
.506
0.10
-0.029
-18.2
.506
0.20
-0.117
-36.4
.506
0.30
-0.264
-54.7
.506
0.40
-0.470
-72.9
.506
0.50
-0.737
-91.1
.506
0.60
-1.06
-109
.506
0.70
-1.45
-128
.506
0.80
-1.91
-146
.506
0.85
-2.16
-155
.506
0.90
-2.42
-164
.506
0.95
-2.71
-173
.506
1.00
-3.01
-182
.506
-3.67
1.10
-200
.506
-4.40
1.20
-219
.506
-5.20
1.30
-237
.506
1.40
-6.10
-255
.505
1.50
-7.08
-273
.504
1.60
-8.16
-291
.502
1.70
-9.36
-309
.498
1.80
-10.7
-327
.492
1.90
-12.1
-345
.482
2.00
-13.7
-362
.468
2.25
-18.1
-402
.417
2.50
-23.1
-436
.352
2.75
-28.3
-465
.291
3.00
-33.4
-489
.241
3.25
-38.3
-509
.201
3.50
-43.1
-526
.170
4.00
-51.8
-552
.126
5.00
-66.8
-587
.077
6.00
-79.2
-610
.052
7.00
-89.8
-626
.038
8.00
-99.0
-638
.029
9.00
-107
-647
.023
10.0
-114
-655
.018
Low-Pass
Frequency Response
0
Amp (dB)
-20
-40
-60
-80
-100
0.1
2
1.0
2 3 4 5 6 7
10.0
Normalized Frequency(f/fc)
3 4 5 6 78
Delay
(Normalized)
1.0
Delay (sec)
0.5
0.0
0.1
0.15 2
3
4
5 6 7 89
Normalized Time (1/f sec)
1.0
1.5
Step Response
Step Response (V/V)
1.2
1.0
0.8
0.6
0.4
0.2
-0.0
-0.2
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).
Actual Delay =
Normalized Delay
Actual Corner Frequency (fc) in Hz
1
2
3
4
5
Normalized Time (1/f sec)
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
∑
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