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LTC1264CS 数据表(PDF) 3 Page - Linear Technology

部件名 LTC1264CS
功能描述  High Speed, Quad Universal Filter Building Block
PDF  16 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC1264CS 数据表(HTML) 3 Page - Linear Technology

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LTC1264
ELECTRICAL C
C
HARA TERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC Offset Voltage (Note 2)
VOS1 (DC Offset of Input Inverter)
q
±20
mV
VOS2 (DC Offset of First Integrator)
q
±45
mV
VOS3 (DC Offset of Second Integrator)
q
±45
mV
Clock Feedthrough
VS = ±7.5V (fCLK is a Square Wave)
160
µVRMS
VS = ±5V (fCLK is a Square Wave)
120
µVRMS
VS = ±2.375V (fCLK is a Square Wave)
90
µVRMS
Maximum Clock Frequency
VS = ±7.5V, TA = 25°C
6
MHz
Power Supply Current
VS = ±5V
9
14
23
mA
q
26
mA
(Complete Filter) VS = ±5V, fCLK = 1MHz, all sides mode 1, fO = 50kHz, Q = 5, TA = 25°C, unless otherwise noted.
The q denotes specifications which apply over the full operating
temperature range.
Note 1: Please refer to Typical Maximum Q vs Clock Frequency graphs.
Note 2: Calculations of output DC offsets of one 2nd order section. Also
see Block Diagram.
CC
HARA TERISTICS
A
TYPICALPERFOR
CE
Typical Maximum Q
vs Clock Frequency
Typical Maximum Q
vs Clock Frequency
Typical Maximum Q
vs Clock Frequency
fO(measured) – fO(ideal)
fO (ideal)
VOSN
VOSBP
VOSLP
MODE
PINS 2, 11, 14, 23
PINS 3, 10, 15, 22
PINS 4, 9, 16, 21
1VOS1[(1Q) + 1 ||HOLP ||] – VOS3/Q
VOS3
VOSN – VOS2
1b
VOS1[(1/Q) + 1 + R2/R1] – VOS3/Q
VOS3
≈(VOSN – VOS2)(1 + R5/R6)
2[VOS1(1 + R2/R1 + R2/R3 + R2/R4) – VOS3(R2/R3)]
VOS3
VOSN – VOS2
• [R4/(R2 + R4)] + VOS2[R2/(R2 + R4)]
3VOS2
VOS3
VOS1[1 + R4/R1 + R4/R2 + R4/R3] – VOS2(R4/R2)
– VOS3(R4/R3)
Note 3: The center frequency fO, error is calculated as:
CLOCK FREQUENCY (MHz)
1.5
26
24
22
20
18
16
14
12
10
8
6
4
2
0
2.5
3.5
4.0
1264 G01
2.0
3.0
4.5
5.0
VS = ±7.5V
TA ≤ 85°C
A
B
A. MODES 1, 1b
B. MODES 3, 3a
CLOCK FREQUENCY (MHz)
1.0
26
24
22
20
18
16
14
12
10
8
6
4
2
0
2.0
3.0
3.5
1264 G02
1.5
2.5
4.0
VS = ±5V
TA ≤ 85°C
A
B
A. MODES 1, 1b
B. MODES 3, 3a
CLOCK FREQUENCY (MHz)
1.0
20
18
16
14
12
10
8
6
4
2
0
1.8
1264 G03
1.2
1.4
1.6
2.0
B
A
VS = SINGLE 5V
TA ≤ 85°C
A. MODES 1, 1b
B. MODES 3, 3a
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