LTC1067-50IS 반도체 회로 부품 판매점
Rail-to-Rail/ Very Low Noise Universal Dual Filter Building Block
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 Linear Technology |
LTC1067/LTC1067-50
Rail-to-Rail, Very Low Noise
Universal Dual Filter Building Block
FEATURES
s Rail-to-Rail Input and Output Operation
s Operates from a Single 3V to ±5V Supply
s Dual 2nd Order Filter in a 16-Lead SSOP Package
s > 80dB Dynamic Range on Single 3.3V Supply
s Clock-to-Center Frequency Ratio of 100:1 for the
LTC1067 and 50:1 for the LTC1067-50
s Internal Sampling-to-Center Frequency Ratio of
200:1 for the LTC1067 and 100:1 for the LTC1067-50
s Center Frequency Error < ±0.2% Typ
s Low Noise: < 40µVRMS, Q ≤ 5
s Customizable with Internal Resistors
U
APPLICATIONS
s Notch Filters
s Narrowband Bandpass Filters
s Tone Detection
s Noise Reduction Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
DESCRIPTION
The LTC®1067/LTC1067-50 consist of two identical rail-
to-rail, high accuracy and very wide dynamic range 2nd
order switched-capacitor building blocks. Each building
block, together with three to five resistors, provides 2nd
order filter functions such as bandpass, highpass, lowpass,
notch and allpass. High precision 4th order filters are
easily designed.
The center frequency of each 2nd order section is tuned by
the external clock frequency. The internal clock-to-center
frequency ratio (100:1 for the LTC1067 and 50:1 for the
LTC1067-50) can be modified by the external resistors.
These devices have a double sampled architecture which
places aliasing and imaging components at twice the clock
frequency. The LTC1067-50 is a low power device con-
suming about one half the current of the LTC1067. The
LTC1067-50’s typical supply current is about 1mA from a
3.3V supply.
The LTC1067 and LTC1067-50 are available in 16-pin
narrow SSOP and SO packages.
Mask programmable versions of the LTC1067 and
LTC1067-50, with thin film resistors on-chip and custom
clock-to-cutoff frequency ratios, can be designed in an
SO-8 package to realize application specific monolithic
filters. Please contact LTC Marketing for more details.
TYPICAL APPLICATION
Single 3.3V Supply Rail-to-Rail,
4th Order, 10kHz Bandpass Filter
1 V+
CLK 16 fCLK = 500kHz
2
NC
15
AGND
3.3V
3 V+
V– 14
1µF
0.1µF
4 13
SA SB
5
LTC1067-50
LPA LPB
12
R31, 200k 6
BPA
11
BPB
R21, 10k 7
10
R11 HPA/NA HPB/NB
200k
IN
8
INV A
9
INV B
OUT
R32, 200k
R22, 10k
RB1, 200k
TOTAL OUTPUT NOISE: 90µVRMS
S/N RATIO: 80dB
1067 TA01
Frequency Response
0
–10
–20
–30
–40
8
9 10 11
FREQUENCY (kHz)
12
1067 • TA02
1
LTC1067/LTC1067-50
ABSOLUTE MAXIMUM RATINGS
Total Voltage Supply (V + to V –) .............................. 12V
Input Voltage ........................ (V + + 0.3V) to (V – – 0.3V)
Output Short-Circuit Duration .......................... Indefinite
Power Dissipation............................................... 500mV
Operating Temperature Range
LTC1067C................................................ 0°C to 70°C
LTC1067I............................................ – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
V+ 1
NC 2
V+ 3
SA 4
LPA 5
BPA 6
HPA/NA 7
INV A 8
TOP VIEW
16 CLK
15 AGND
14 V–
13 SB
12 LPB
11 BPB
10 HPB/NB
9 INV B
GN PACKAGE
S PACKAGE
16-LEAD PLASTIC SSOP 16-LEAD PLASTIC SO
TJMAX = 110°C, θJA = 135°C/ W (GN)
TJMAX = 110°C, θJA = 115°C/ W (S)
ORDER PART
NUMBER
LTC1067CGN
LTC1067-50CGN
LTC1067IGN
LTC1067-50IGN
LTC1067CS
LTC1067-50CS
LTC1067IS
LTC1067-50IS
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS LTC1067 (internal op amps) VS = 4.75V, TA = 25°C, unless otherwise noted.
PARAMETER
Operating Supply Range
Positive Output Voltage Swing
Negative Output Voltage Swing
Output Short-Circuit Current
(Source/Sink)
DC Open-Loop Gain
GBW Product
Slew Rate
CONDITIONS
VS = 3V, RL = 10k
VS = 4.75V, RL = 10k
VS = ±5V, RL = 10k
VS = 3V, RL = 10k
VS = 4.75V, RL = 10k
VS = ±5V, RL = 10k
VS = 3V
VS = 4.75V
VS = ±5V
RL = 10k
RL = 10k
RL = 10k
MIN
3
q 2.65
q 4.25
q 4.15
q
q
q
TYP
2.80
4.50
4.50
0.020
0.025
– 4.96
16/1.0
33/2.2
70/7.2
90
2.8
2.25
MAX
11
0.200
0.225
– 4.80
UNITS
V
V
V
V
V
V
V
mA
mA
mA
dB
MHz
V/µs
LTC1067 (complete filter) VS = 4.75V, fCLK = 250kHz, TA = 25°C, unless otherwise noted.
PARAMETER
Center Frequency Range, fO (Note 1)
Input Frequency Range
Clock-to-Center Frequency, fCLK/fO
Clock-to-Center Frequency Ratio,
Side-to-Side Matching
CONDITIONS
VS = 3V, fCLK = 250kHz, Mode 1, fO = 2.5kHz, Q = 5
R1 = R3 = 49.9k, R2 = 10k
VS = 4.75V, fCLK = 250kHz, Mode 1, fO = 2.5kHz, Q = 5
R1 = R3 = 49.9k, R2 = 10k
VS = ±5V, fCLK = 500kHz, Mode 1, fO = 5kHz, Q = 5
R1 = R3 = 49.9k, R2 = 10k
VS = 3V, fCLK = 250kHz, Q = 5
VS = 4.75V, fCLK = 250kHz, Q = 5
VS = ±5V, fCLK = 500kHz, Q = 5
MIN
q
q
q
q
q
q
TYP
0.001 to 20
0 to 1
100:1 ±0.2
100:1 ±0.2
100:1 ±0.2
±0.1
±0.1
±0.1
MAX
±0.70
±0.70
±0.70
±0.35
±0.35
±0.35
UNITS
kHz
MHz
%
%
%
%
%
%
%
%
%
2
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( linear )
LTC1067-50IS filter
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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관련 데이터시트
LTC1067-50IGN
Rail-to-Rail/ Very Low Noise Universal Dual Filter Building Block - Linear Technology
LTC1067-50IS
Rail-to-Rail/ Very Low Noise Universal Dual Filter Building Block - Linear Technology