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LTC1068 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC1068
Description  Clock-Tunable, Quad Second Order, Filter Building Blocks
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1068 Datasheet(HTML) 5 Page - Linear Technology

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5
LTC1068 Series
ELECTRICAL CHARACTERISTICS
LTC1068-50 (Complete Filter) VS = ±5V, TA = 25°V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fO Temperature Coefficient
±1
ppm/
°C
Q Temperature Coefficient
±5
ppm/
°C
DC Offset Voltage (Note 5)
VS = ±5V, fCLK = 500kHz, VOS1
q
0
±15
mV
(See Table 1)
(DC Offset of Input Inverter)
VS = ±5V, fCLK = 500kHz, VOS2
q
–2
±25
mV
(DC Offset of First Integrator)
VS = ±5V, fCLK = 500kHz, VOS3
q
–5
±40
mV
(DC Offset of Second Integrator)
Clock Feedthrough
VS = ±5V, fCLK = 500kHz
0.16
mVRMS
Max Clock Frequency (Note 6)
VS = ±5V, Q ≤ 1.6, Mode 1
3.4
MHz
Power Supply Current
VS = 3.14V, fCLK = 250kHz (Note 2)
q
3.0
5
mA
VS = 4.75V, fCLK = 250kHz (Note 3)
q
4.3
8
mA
VS = ±5V, fCLK = 500kHz
q
6.0
11
mA
LTC1068-25 (Internal Op Amps) VS = ±5V, TA = 25°V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Supply Voltage Range
3.14
±5.5
V
Voltage Swings
VS = 3.14V, RL = 5k (Note 2)
q
1.2
1.6
VP-P
VS = 4.75V, RL = 5k (Note 3)
q
2.6
3.4
VP-P
VS = ±5V, RL = 5k
q
±3.4
±4.1
V
Output Short-Circuit Current (Source/Sink)
VS = ±4.75V
17/6
mA
VS = ±5V
20/15
mA
DC Open-Loop Gain
RL = 5k
85
dB
GBW Product
VS = ±5V
6
MHz
Slew Rate
VS = ±5V
10
V/
µs
Analog Ground Voltage (Note 4)
VS = 5V, Voltage at AGND
2.5V
±2%
V
LTC1068-25 (Complete Filter) VS = ±5V, TA = 25°V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Clock-to-Center Frequency Ratio (Note 5)
VS = 4.75V, fCLK = 500kHz, Mode 1 (Note 3),
25
±0.3
25
±0.8
%
fO = 20kHz, Q = 5, VIN = 0.5VRMS,
q
25
±0.9
%
R1 = R3 = 49.9k, R2 = 10k
VS = ±5V, fCLK = 1MHz, Mode 1,
25
±0.3
25
±0.8
%
fO = 40kHz, Q = 5, VIN = 1VRMS,
q
25
±0.9
%
R1 = R3 = 49.9k, R2 = 10K
Clock-to-Center Frequency Ratio,
VS = 4.75V, fCLK = 500kHz, Q = 5 (Note 3)
q
±0.25
±0.9
%
Side-to-Side Matching (Note 5)
VS = ±5V, fCLK = 1MHz, Q = 5
q
±0.25
±0.9
%
Q Accuracy (Note 5)
VS = 4.75V, fCLK = 500kHz, Q = 5 (Note 3)
q
±1
±3%
VS = ±5V, fCLK = 1MHz, Q = 5
q
±1
±3%
fO Temperature Coefficient
±1
ppm/
°C
Q Temperature Coefficient
±5
ppm/
°C



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