LTC6603 Linear Technology, LTC6603 Datasheet - Page 7

• Manufacturer Part Number: LTC6603
• Description: Dual Adjustable Lowpass Filter
• Manufacturer: Linear Technology

TYPICAL PERFORMANCE CHARACTERISTICS
–100
–10
–20
–30
–40
–50
–60
–70
–60
–65
–70
–75
–80
–85
–90
–60
–70
–80
–90
30
20
10
0
10k
100
1.0
Distortion vs Input Frequency
Gain and Group Delay
vs Frequency
Distortion vs Output Voltage
GROUP DELAY
R
LPF1 = 0, LPF0 = 1,
BW = 625kHz
T
R
BW = 2.5MHz, GAIN = 24dB, T
A
BIAS
BIAS
HD3, f = 200kHz
1.2
= 25°C
GAIN = 24dB
GAIN = 0dB
300
= 30.9k, V
= 30.9k, V
1.4
INPUT FREQUENCY (kHz)
HD2, f = 1MHz
OUTPUT VOLTAGE (V
100k
1.6
FREQUENCY (Hz)
500
S
S
1.8
HD3, f = 1MHz
= 3V
= 3V, LPF1 = 0, LPF0 = 1,
HD3, GAIN = 0dB
LPF1 = 1, BW = 1.41MHz
2.0 2.2 2.4 2.6 2.8 3.0
R
700
HD2, GAIN = 24dB
BIAS
HD3, GAIN = 24dB
HD2, GAIN = 0dB
1M
= 54.9k, V
HD2, f = 200kHz
A
GAIN = 12dB
900
P-P
GAIN = 6dB
= 25°C
)
T
A
= 25°C
S
1100
6603 G06
= 3V
6603 G09
6603 G11
10M
3.5
3.3
3.1
2.9
2.7
2.5
2.3
2.1
1.9
1.7
1.5
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
–0.7
–0.8
–0.9
–10
–20
–30
–40
–50
–60
–70
–60
–65
–70
–75
–80
–85
–90
0.2
0.1
0.0
30
20
10
0
20
2.7
1k
Gain and Group Delay
vs Frequency
Distortion vs Input Frequency
Filter Cutoff Accuracy
vs Supply Voltage
GAIN = 12dB
HD3, GAIN = 0dB
LPF1 = LPF0 = 0, BW = 156.25kHz
R
T
R
LPF1 = LPF0 = 0,
BW = 156.25kHz
T
A
A
BIAS
GAIN = 24dB
BIAS
GROUP DELAY
= 25°C
2.8
= 25°C
HD2, GAIN = 24dB
120
LPF1 = 1, BW = 2.5MHz
GAIN = 6dB
= 30.9k
= 30.9k, V
2.9
INPUT FREQUENCY (kHz)
HD2, GAIN = 0dB
LPF1 = 0, LPF0 = 1, BW = 625kHz
SUPPLY VOLTAGE (V)
10k
3.0
220
FREQUENCY (Hz)
GAIN = 0dB
S
= 3V
3.1
V
320
OUT
R
3.2 3.3 3.4 3.5 3.6
BIAS
LPF1 = 0, LPF0 = 1,
BW = 625kHz
HD3, GAIN = 24dB
= 2V
100k
= 30.9k, V
420
P-P
, T
A
520
= 25°C
S
= 3V
6603 G10
6603 G07
6603 G13
1M
12.0
11.5
11.0
10.5
10.0
9.5
9.0
8.5
8.0
7.5
7.0
–100
–0.2
–0.4
–0.6
–0.8
–70
–75
–80
–85
–90
–95
1.0
0.8
0.6
0.4
0.2
0.0
–50
–60
–70
–80
–90
–50
10
Distortion vs Input Frequency
Filter Cutoff Accuracy
vs Temperature
100
R
LPF1 = LPF0 = 0, BW = 156.25kHz
V
V
R
OUT
S
Distortion vs Input Frequency
BIAS
BIAS
R
LPF1 = 1, BW = 2.5MHz
V
= 3V
BW = 156.25kHz
BIAS
OUT
–30
30
= 2V
= 30.9k
= 30.9k, V
BW = 625kHz
= 2V
HD2, GAIN = 0dB
= 30.9k, V
500
P-P
INPUT FREQUENCY (kHz)
–10
www.DataSheet4U.com
50
INPUT FREQUENCY (kHz)
TEMPERATURE (°C)
P-P
, T
BW = 2.5MHz
HD3, GAIN = 0dB
A
, T
S
HD2, GAIN = 24dB
= 25°C
= 3V
70
10
A
S
900
= 25°C
= 3V
LTC6603
HD2, GAIN = 0dB
HD3, GAIN = 24dB
90
30
1300
HD2, GAIN = 24dB
HD3, GAIN = 24dB
HD3, GAIN = 0dB
110
50
1700
130
70
6603 G11
6603 G14
7
6603 G08
6603f
150
90