OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LTC1566-1IS8#TRPBF

P1-P3P4-P6P7-P8
LTC1566-1
1
15661fa
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
The LTC
®
1566-1 is a 7th order continuous time lowpass
filter with 12dB of passband gain. The selectivity, linearity
and dynamic range makes the LTC1566-1 suitable for
filtering in data communications or data acquisition
systems. The filter attenuation is 40dB at 1.5 × f
CUTOFF
and
at least 60dB for frequencies above 10MHz.
The LTC1566-1 has an input referred noise of 62µV
RMS
in
a 2MHz bandwidth. In receiver applications where the
signal levels are small, the filter features 71dB of spurious
free dynamic range.
With 5% accuracy of the cutoff frequency, the LTC1566-1
can be used in applications requiring pairs of matched
filters, such as transceiver I and Q channels.
The differential inputs and outputs provide a simple inter-
face for wireless systems. The high impedance inputs are
easily coupled to differential demodulators or D/A con-
verters. The output DC common mode voltage and output
DC offset voltage are adjustable so the signal path can be
optimized for driving an A/D converter or differential
modulator.
Other cutoff frequencies and single-ended I/O can be
provided upon request. Please contact LTC Marketing.
■
WCDMA Basestations
■
Communication Filters
■
Antialiasing Filters
■
Smoothing or Reconstruction Filters
■
Matched Filter Pairs
■
Replacement for LC Filters
, LTC and LT are registered trademarks of Linear Technology Corporation.
■
7th Order, 2.3MHz Lowpass Filter in an SO-8
■
62µV
RMS
Input Referred Noise
■
Operates on a Single 5V or a ±5V Supply
■
Differential Inputs and Outputs
■
Low Offset (3mV typical, 10mV
MAX
)
■
Adjustable Output Common Mode Voltage
■
40dB Attenuation at 1.5 × f
CUTOFF
■
Requires No External Components
Low Noise 2.3MHz
Continuous Time Lowpass Filter
Frequency Response
Single 5V Supply, Differential
2.3MHz Lowpass Filter
LTC1566-1
1
2
3
4
OUT
+
OUT
–
V
+
V
ODC
IN
+
IN
–
GND
V
–
8
7
6
5
V
IN
V
OUT
+
–
+
–
5V
10k 10k
0.1µF 0.1µF
1566-1 TA01
FREQUENCY (MHz)
0.1
GAIN (dB)
20
10
0
–10
–20
–30
–40
–50
–60
–70
–80
1000
900
800
700
600
500
400
300
200
100
0
1.0 10 100
1566-1 G01
DELAY (ns)
DELAY
GAIN
LTC1566-1
2
15661fa
Total Supply Voltage ................................................ 11V
Power Dissipation.............................................. 500mW
Operating Temperature Range
LTC1566-1CS .......................................... 0°C to 70°C
LTC1566-1IS ...................................... –40°C to 85°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER PART
NUMBER
T
JMAX
= 125°C, θ
JA
= 80°C/W
(Note 4)
Consult factory for parts specified with wider operating temperature ranges.
LTC1566-1CS8
LTC1566-1IS8
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Note 1)
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
S
= 5V (V
+
= 5V, V
–
= 0V), R
LOAD
= 10k from each output to AC ground,
Pin 5 connected to Pin 3, Pin 3 biased to mid supply, unless otherwise specified.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Filter Gain, V
S
= 5V V
IN
= 0.25V
P-P
f
IN
= 20kHz to 100kHz ● 11.8 12.1 12.3 dB
f
IN
= 1.8MHz (Gain Relative to 100kHz) ● –0.35 0 0.8 dB
f
IN
= 2MHz (Gain Relative to 100kHz) ● –0.85 – 0.1 0.8 dB
f
IN
= 2.3MHz (Gain Relative to 100kHz) ● –7.5 –3 –0.95 dB
f
IN
= 3MHz (Gain Relative to 100kHz) ● –22 –17 dB
f
IN
= 5MHz (Gain Relative to 100kHz) – 42 dB
f
IN
= 10MHz (Gain Relative to 100kHz) – 62 dB
Filter Phase, V
S
= ±5V V
IN
= 0.25V
P-P
f
IN
= 900kHz ● –165 –150 –135 deg
f
IN
= 1.8MHz ● –330 –285 –265 deg
Phase Linearity, V
S
= ±5V Ratio of phases: 1.8MHz/900kHz ● 1.9 1.95 2.05
Filter Gain, V
S
= ±5V V
IN
= 0.25V
P-P
f
IN
= 20kHz to 100kHz ● 11.9 12.1 12.3 dB
f
IN
= 900kHz (Gain Relative to 100kHz) ● –0.2 0 0.2 dB
f
IN
= 1.8MHz (Gain Relative to 100kHz) ● –0.3 0.1 0.9 dB
f
IN
= 2MHz (Gain Relative to 100kHz) ● –0.55 0.1 0.75 dB
f
IN
= 2.3MHz (Gain Relative to 100kHz) ● –6 –2 –0.3 dB
f
IN
= 3MHz (Gain Relative to 100kHz) ● –20 –16 dB
f
IN
= 5MHz (Gain Relative to 100kHz) – 41 dB
f
IN
= 10MHz (Gain Relative to 100kHz) –61 dB
Input Referred Wideband Noise Noise BW = 50kHz to 2MHz 62 µV
RMS
THD f
IN
= 100kHz, V
OUT
= 2V
P-P
(Note 2) 80 dB
Filter Differential DC Swing Maximum Difference Between Pins 7 and Pin 8 V
S
= 5V ● ±1.3 ±1.7 V
P
with Pin 5, Pin 3 Biased to Mid Supply V
S
= ±5V ● ±2.7 ±2.9 V
P
Input Bias Current ● 300 600 nA
Input Offset Current ±10 nA
Input Resistance Common Mode, V
IN
= 1.5V to 3.5V 70 MΩ
Differential 140 MΩ
Input Capacitance 2pF
Output DC Offset V
S
= 5V ±3 ±10 mV
(Notes 3, 5) V
S
= ±5V ±3 ±10 mV
TOP VIEW
OUT
+
OUT
–
V
+
V
ODC
IN
+
IN
–
GND
V
–
S8 PACKAGE
8-LEAD PLASTIC SO
1
2
3
4
8
7
6
5
S8 PART MARKING
15661
15661I
LTC1566-1
3
15661fa
PARAMETER CONDITIONS MIN TYP MAX UNITS
Output DC Offset Drift V
S
= 5V –160 µV/°C
V
S
= ±5V –160 µV/°C
Output DC Common Mode Voltage V
S
= 5V, V
S
= ±2.5V –80 mV
Power Supply Current V
S
= 5V ● 24 32 mA
V
S
= ±5V ● 25 34 mA
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
S
= 5V (V
+
= 5V, V
–
= 0V), R
LOAD
= 10k from each output to AC ground,
and Pin 5 connected to Pin 3 unless otherwise specified
Note 4: Thermal resistance varies depending upon the amount of PC board
metal attached to the device. θ
JA
is specified for a 3.8 square inch test
board covered with 2oz copper on both sides.
Note 5: Output DC offset measurements are performed by automatic test
equipment approximately 0.5 seconds after application of power.
TYPICAL PERFOR A CE CHARACTERISTICS
UW
FREQUENCY (Hz)
10k
GAIN (dB)
12.4
12.0
11.6
11.2
10.8
10.4
100k 1M 5M
1566-1 G02
1
0
DELAY (µs)
T
A
= 25°C
GAIN ±5V
GAIN 5V
DELAY
FREQUENCY (Hz)
10k
GAIN (dB)
12.4
12.0
11.6
11.2
10.8
10.4
100k 1M 5M
1566-1 G03
T
A
= 85°C
T
A
= –40°C
T
A
= 25°C
V
IN
(dbm)
–25
40
20
0
–20
–40
–60
–80
–100
–10 0
1566-1 G07
–20 –15
–5 5 10
V
OUT
(dBm)
500kHz
1MHz
1.5MHz
NOISE FLOOR
1dB COMPRESSION
Passband Gain and Delay
vs Frequency
Passband Gain
vs Frequency and Temperature
Stopband Gain vs Frequency
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Input and output voltages expressed as peak-to-peak numbers are
assumed to be fully differential.
Note 3: Output DC offset is measured between Pin 8 and Pin 7 with Pin 1,
Pin 2 and Pin 5 connected to Pin 3. Pin 3 biased to mid supply.
Stopband Gain vs Frequency
and Temperature
450k/2M Intermodulation, V
S
= 5V
500kHz Distortion
vs Input Level, V
S
= 5V
FREQUENCY (MHz)
3
GAIN (dB)
–10
–20
–30
–40
–50
–60
47895106
1566-1 G04
±5V
5V
T
A
= 25°C
FREQUENCY (MHz)
3
GAIN (dB)
–10
–20
–30
–40
–50
–60
47895106
1566-1 G05
T
A
= 25°C
T
A
= –40, 85°C
V
S
= 5V
V
X
(dBm)
–25
V
OUT
(dBm)
20
0
–20
–40
–60
–80
–100
–20 –15 –10 –5
1566-1 G06
0
450k
1.55M
2M
2.45M
3.55M
NOISE FLOOR
1.1M
OIP
3
= 38dBm
OIP
2
= 74dBm
V
IN
= V
X
COS(2π • 450kHz) + V
X
COS (2π • 2MHz)
P1-P3P4-P6P7-P8

LTC1566-1IS8#TRPBF

Mfr. #:
Buy LTC1566-1IS8#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Active Filter L N 2.3MHz Continuous Time Lpass Filt
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet