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LTC1068-200IG#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
LTC1068 Series
7
1068fc
ELECTRICAL CHARACTERISTICS
LTC1068
Maximum Q vs Center Frequency
(Modes 1, 1b, 2)
LTC1068
Maximum Q vs Center Frequency
(Modes 2, 3)
LTC1068-200
Maximum Q vs Center Frequency
(Modes 1, 1b, 2)
Table 1. Output DC Offsets One 2nd Order Section
MODE V
OSN
V
OSBP
V
OSLP
1 V
OS1
[(1/Q) + 1 + ||HOLP||] – V
OS3
/Q V
OS3
V
OSN
– V
OS2
1b V
OS1
[(1/Q) + 1 + R2/R1] – V
OS3
/Q V
OS3
~(V
OSN
– V
OS2
)(1 + R5/R6)
2 [V
OS1
(1 + R2/R1 + R2/R3 + R2/R4) – V
OS3
(R2/R3)X
[R4/(R2 + R4)] + V
OS2
[R2/(R2 + R4)]
V
OS3
V
OSN
– V
OS2
3 V
OS2
V
OS3
V
OS1
[1 + R4/R1 + R4/R2 + R4/R3] – V
OS2
(R4/R2) – V
OS3
(R4/R3)
TYPICAL PERFORMANCE CHARACTERISTICS
CENTER FREQUENCY, f
O
(kHz)
0
A B C
0
MAXIMUM Q
5
15
20
25
50
35
20
40
50
1068 G01
10
40
45
30
10
30
60
70
A. V
S
= 3.3V, f
CLK(MAX)
= 1.5MHz
B. V
S
= 5V, f
CLK(MAX)
= 3.4MHz
C. V
S
= ±5V, f
CLK(MAX)
= 5.6MHz
(FOR MODE 2 R4 ≥ 10R2)
CENTER FREQUENCY, f
O
(kHz)
0
A B C
0
MAXIMUM Q
5
15
20
25
50
35
20
40
50
1068 G02
10
40
45
30
10
30
60
A. V
S
= 3.3V, f
CLK(MAX)
= 1MHz
B. V
S
= 5V, f
CLK(MAX)
= 3MHz
C. V
S
= ±5V, f
CLK(MAX)
= 5MHz
(FOR MODE 2 R4 < 10R2)
CENTER FREQUENCY, f
O
(kHz)
0
A
B C
55
50
45
40
35
30
25
20
15
10
5
0
TYPICAL MAXIMUM Q
8
16
20 24
1068 G03
4
12
28
32
A: V
S
= 3.3V, f
CLK(MAX)
= 1.2MHz
B: V
S
= 5V, f
CLK(MAX)
= 3.2MHz
C: V
S
= ±5V, f
CLK(MAX)
= 6.1MHz
(FOR MODE 2, R4 ≥ 10R2)
LTC1068-200
Maximum Q vs Center Frequency
(Modes 2, 3)
LTC1068-50
Maximum Q vs Center Frequency
(Modes 1, 1b, 2)
LTC1068-50
Maximum Q vs Center Frequency
(Modes 2, 3)
CENTER FREQUENCY, f
O
(kHz)
0
A
B C
55
50
45
40
35
30
25
20
15
10
5
0
TYPICAL MAXIMUM Q
8
16
20 24
1068 G04
4
12
28
32
A: V
S
= 3.3V, f
CLK(MAX)
= 1.2MHz
B: V
S
= 5V, f
CLK(MAX)
= 3.2MHz
C: V
S
= ±5V, f
CLK(MAX)
= 6.1MHz
(FOR MODE 2, R4 < 10R2)
CENTER FREQUENCY, f
O
(kHz)
0
A
B
C
55
50
45
40
35
30
25
20
15
10
5
0
TYPICAL MAXIMUM Q
8
16
20 24
1068 G05
4
12
28
32
A: V
S
= 3.3V, f
CLK(MAX)
= 1.1MHz
B: V
S
= 5V, f
CLK(MAX)
= 2.1MHz
C: V
S
= ±5V, f
CLK(MAX)
= 3.6MHz
(FOR MODE 2, R4 ≥ 10R2)
CENTER FREQUENCY, f
O
(kHz)
0
A
B
C
55
50
45
40
35
30
25
20
15
10
5
0
TYPICAL MAXIMUM Q
8
16
20 24
1068 G06
4
12
28
32
A: V
S
= 3.3V, f
CLK(MAX)
= 1.1MHz
B: V
S
= 5V, f
CLK(MAX)
= 2.1MHz
C: V
S
= ±5V, f
CLK(MAX)
= 3.6MHz
(FOR MODE 2, R4 < 10R2)
LTC1068 Series
8
1068fc
TYPICAL PERFORMANCE CHARACTERISTICS
LTC1068-25
Maximum Q vs Center Frequency
(Modes 1, 1b, 2)
LTC1068-25
Maximum Q vs Center Frequency
(Modes 2, 3)
LTC1068 Center Frequency
Variation vs Clock Frequency
LTC1068-200 Center Frequency
Variation vs Clock Frequency
LTC1068-50 Center Frequency
Variation vs Clock Frequency
LTC1068-25 Center Frequency
Variation vs Clock Frequency
CENTER FREQUENCY, f
O
(kHz)
0
A
B
C
TYPICAL MAXIMUM Q
55
50
45
40
35
30
25
20
15
10
5
0
64
128
160
1068 G07
32
96
192
224
A: V
S
= 3.3V, f
CLK(MAX)
= 1.2MHz
B: V
S
= 5V, f
CLK(MAX)
= 3.4MHz
C: V
S
= ±5V, f
CLK(MAX)
= 6.1MHz
(FOR MODE 2, R4 ≥ 10R2)
FREQUENCY, f
O
(kHz)
0
A
B
C
TYPICAL MAXIMUM Q
55
50
45
40
35
30
25
20
15
10
5
0
64
128
160
1068 G08
32
96
192
224
A: V
S
= 3.3V, f
CLK(MAX)
= 1MHz
B: V
S
= 5V, f
CLK(MAX)
= 3MHz
C: V
S
= ±5V, f
CLK(MAX)
= 5MHz
(FOR MODE 2, R4 < 10R2)
CLOCK FREQUENCY (MHz)
0.75 1.25 1.75 2.25 2.75 3.25 3.75
–0.6
CENTER FREQUENCY VARIATION (% ERROR)
–0.4
0
0.2
0.4
1.2
1068 G09
–0.2
4.25
0.6
0.8
1.0
MODE 3
MODE 1
V
S
= ±5V
Q = 5, REFERENCE
CENTER FREQUENCY
WITH f
CLK
= 0.75MHz
CLOCK FREQUENCY (MHz)
0.75 1.25 1.75 2.25 2.75 3.25 3.75
–0.25
CENTER FREQUENCY VARIATION (% ERROR)
–0.20
–0.10
–0.05
0
0.20
1068 G10
–0.15
4.25
0.05
0.10
0.15
MODE 3
MODE 1
V
S
= ±5V
Q = 5, REFERENCE
CENTER FREQUENCY
WITH f
CLK
= 0.75MHz
CLOCK FREQUENCY (MHz)
0.5
–0.2
CENTER FREQUENCY VARIATION (% ERROR)
–0.1
0
0.1
0.2
0.4
0.75
1.0 1.25 1.5
1068 G11
1.75 2.0
0.3
MODE 1
MODE 3
V
S
= ±5V
Q = 5, REFERENCE
CENTER FREQUENCY
WITH f
CLK
= 0.5MHz
CLOCK FREQUENCY (MHz)
0.5
0
BATTERY VOLTAGE (V)
0.3
0.8
1.3
1.8
1.0 1.5 2.0 2.5
1068 G12
3.0 3.5
MODE 1
MODE 3
V
S
= ±5V
Q = 5, REFERENCE
CENTER FREQUENCY
WITH f
CLK
= 0.5MHz
LTC1068/LTC1068-200
Noise vs Q
LTC1068-50 Noise vs Q
LTC1068-25 Noise vs Q
Q
0
0
NOISE (µV
RMS
)
50
100
150
200
10 20
30
5V
±5V
3.3V
40
1068 G13
250
300
5 15
25
35
Q
0
0
NOISE (µV
RMS
)
50
100
150
200
10 20
30
±5V
3.3V
40
1068 G14
250
300
5 15
25
35
5V
Q
0
0
NOISE (µV
RMS
)
50
100
150
200
10 20
30
±5V
3.3V
40
1068 G15
250
300
5 15
25
35
5V
LTC1068 Series
9
1068fc
TYPICAL PERFORMANCE CHARACTERISTICS
Noise Increase vs R2/R4 Ratio
(Mode 3)
Noise Increase vs R5/R6 Ratio
(Mode 1b)
LTC1068/LTC1068-200/
LTC1068-25 Power Supply
Current vs Power Supply
LTC1068-50 Power Supply
Current vs Power Supply
R2/R4 RATIO
0.2
0
RELATIVE NOISE INCREASE
(REFERENCE NOISE WHEN R2/R4 = 1)
1.1
1.3
1.4
1.5
2.0
1.7
0.4
0.6
0.7
1068 G16
1.2
1.8
1.9
1.6
0.3 0.5
0.8
0.9
1.0
R5/R6 RATIO
0
0
RELATIVE NOISE INCREASE
(REFERENCE NOISE WHEN R5/R6 = 0.02)
1.1
1.3
1.4
1.5
2.0
1.7
1.0
2.0
2.5
1068 G17
1.2
1.8
1.9
1.6
0.5
1.5
3.0
3.5
TOTAL POWER SUPPLY (V)
3
POWER SUPPLY CURRENT (mA)
8.5
9.5
10.5
6 8
1068 G18
7.5
6.5
4 5
7 9 10
5.5
4.5
25°C
70°C
–20°C
TOTAL POWER SUPPLY (V)
3
POWER SUPPLY CURRENT (mA)
6
7
8
6 8
1068 G19
5
4
4 5
7 9 10
3
2
25°C
70°C
–20°C
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

LTC1068-200IG#PBF

Mfr. #:
Buy LTC1068-200IG#PBF
Manufacturer:
Analog Devices Inc.
Description:
Active Filter Quad Universal Filter Building Block
Lifecycle:
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