LTC1067 Linear Technology, LTC1067 Datasheet - Page 6
LTC1067
Manufacturer Part Number
LTC1067
Description
Rail-to-Rail/ Very Low Noise Universal Dual Filter Building Block
Manufacturer
Linear Technology
Datasheet
1.LTC1067.pdf
(20 pages)
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LTC1067/LTC1067-50
6
TYPICAL PERFORMANCE CHARACTERISTICS
–100
–60
–65
–70
–75
–80
–85
–90
10.0
–20
–30
–40
–50
–60
–70
–80
–90
9.8
9.6
9.4
9.2
9.0
8.8
8.6
8.4
8.2
8.0
0.1
LTC1067-50
Output Voltage Swing vs Load
Resistance, 5V Supply Voltage
1
0
LTC1067-50
Noise + THD vs Input Voltage
LTC1067-50
Noise + THD vs Input Frequency
4TH ORDER BUTTERWORTH LPF
V
V
4TH ORDER BUTTERWORTH LPF
V
f
R
CLK
S
IN
V
S
L
S
2
= SINGLE 5V, f
= SINGLE 5V, f
= 20k
= 0.5V
= 5V
= 250kHz, f
LOAD RESISTANCE (k TO GND)
4
INPUT FREQUENCY (kHz)
INPUT VOLTAGE (V
RMS,
6
f
–3dB
–3dB
8
CLK
2
IN
= 1kHz
= 5kHz, R
10
= 5kHz
= 250kHz
12 14 16 18 20
RMS
3
L
MODE 1
= 20k
MODE 3
)
W
1
MODE 1
MODE 3
4
1067 G16
1067 G19
1067 G22
U
5
2
–100
–60
–65
–70
–75
–80
–85
–90
–20
–30
–40
–50
–60
–70
–80
–90
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.1
1
LTC1067-50
Output Voltage Swing vs Load
Resistance, Single Supply Voltage
LTC1067-50
Noise + THD vs Input Voltage
LTC1067-50
Noise + THD vs Input Frequency
0
4TH ORDER BUTTERWORTH LPF
V
V
R
4TH ORDER BUTTERWORTH LPF
V
f
f
CLK
–3dB
S
IN
L
S
= 5V, f
= 20k
2
= 5V, f
= 1V
= 250kHz (225kHz FOR MODE 2)
= 10kHz, R
LOAD RESISTANCE (k TO V
4
RMS
INPUT FREQUENCY (kHz)
INPUT VOLTAGE (V
CLK
IN
, f
6
= 1kHz
–3dB
= 250kHz
L
8
2
= 20k
= 5kHz
10
MODE 2
1
12 14 16 18 20
MODE 3
RMS
3
V
V
S
S
)
= 5V
MODE 1
= 3V
MODE 3
–
MODE 1
)
4
1067 G20
1067 G17
1067 G23
5
5
–60
–65
–70
–75
–80
–85
–90
400
350
300
250
200
150
100
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
50
0
LTC1067-50
Noise + THD vs Input Frequency
LTC1067-50
Noise vs Q
0
1
3
LTC1067-50
Power Supply Current
vs Power Supply
4TH ORDER BUTTERWORTH LPF
V
V
S
IN
5
= SINGLE 3V, f
= 0.34V
4
10 15 20
TOTAL POWER SUPPLY (V)
INPUT FREQUENCY (kHz)
RMS,
5
f
–3dB
CLK
2
6
MODE 3
MODE 1
25
Q
= 200kHz
= 4kHz, R
70 C
25 C
7
30 35 40 45 50
20 C
3
5V
3V
5V
8
L
= 20k
4
9
1067 G18
1067 G24
1067 G21
10
5