Datasheet

LTC6603
7
6603fa
TYPICAL PERFORMANCE CHARACTERISTICS
Gain and Group Delay
vs Frequency Distortion vs Input Frequency
Distortion vs Input Frequency
Gain and Group Delay
vs Frequency
Distortion vs Input Frequency Distortion vs Input Frequency
Distortion vs Output Voltage
Filter Cutoff Accuracy
vs Supply Voltage
Filter Cutoff Accuracy
vs Temperature
FREQUENCY (Hz)
GAIN (dB)
6603 G06
30
10
0
20
–60
–40
–50
–30
–20
–10
–70
GROUP DELAY (ns)
3.5
3.1
2.9
3.3
1.7
2.1
1.9
2.3
2.5
2.7
1.5
10k 1M 10M100k
R
BIAS
= 30.9k, V
S
= 3V
LPF1 = 0, LPF0 = 1,
BW = 625kHz
T
A
= 25°C
GAIN = 24dB
GAIN = 0dB
GROUP DELAY
GAIN = 6dB
GAIN = 12dB
FREQUENCY (Hz)
GAIN (dB)
6603 G07
30
10
0
20
–60
–40
–50
–30
–20
–10
–70
GROUP DELAY (µs)
12.0
11.0
10.5
11.5
7.5
8.5
8.0
9.0
9.5
10.0
7.0
1k 100k 1M10k
R
BIAS
= 30.9k, V
S
= 3V
LPF1 = LPF0 = 0,
BW = 156.25kHz
T
A
= 25°C
GAIN = 24dB
GAIN = 0dB
GROUP DELAY
GAIN = 6dB
GAIN = 12dB
INPUT FREQUENCY (kHz)
100
DISTORTION (dBc)
–50
–60
–80
–70
–90
900 1700500 1300
6603 G08
R
BIAS
= 30.9k, V
S
= 3V
LPF1 = 1, BW = 2.5MHz
V
OUT
= 2V
P-P
, T
A
= 25°C
HD2, GAIN = 24dB
HD3, GAIN = 24dB
HD3, GAIN = 0dB
HD2, GAIN = 0dB
INPUT FREQUENCY (kHz)
100
DISTORTION (dBc)
–60
–65
–80
–85
–70
–75
–90
900500
6603 G09
700300 1100
R
BIAS
= 54.9k, V
S
= 3V
LPF1 = 1, BW = 1.41MHz
T
A
= 25°C
HD2, GAIN = 24dB
HD3, GAIN = 24dB
HD3, GAIN = 0dB
HD2, GAIN = 0dB
INPUT FREQUENCY (kHz)
20
DISTORTION (dBc)
–60
–65
–80
–85
–70
–75
–90
420220
6603 G10
320120 520
R
BIAS
= 30.9k, V
S
= 3V
LPF1 = 0, LPF0 = 1, BW = 625kHz
V
OUT
= 2V
P-P
, T
A
= 25°C
HD2, GAIN = 24dB
HD3, GAIN = 0dB
HD2, GAIN = 0dB
HD3, GAIN = 24dB
INPUT FREQUENCY (kHz)
10
DISTORTION (dBc)
–70
–75
–90
–95
–80
–85
–100
9050
6603 G11
7030 110 130 150
R
BIAS
= 30.9k, V
S
= 3V
LPF1 = LPF0 = 0, BW = 156.25kHz
V
OUT
= 2V
P-P
, T
A
= 25°C
HD2, GAIN = 24dB
HD3, GAIN = 0dB
HD2, GAIN = 0dB
HD3, GAIN = 24dB
OUTPUT VOLTAGE (V
P-P
)
1.0
DISTORTION (dBc)
–60
–70
–90
–80
–100
1.81.4
6603 G11
1.61.2 2.0 2.2 2.4 2.6 2.8 3.0
R
BIAS
= 30.9k, V
S
= 3V, LPF1 = 0, LPF0 = 1,
BW = 2.5MHz, GAIN = 24dB, T
A
= 25°C
HD2, f = 1MHz
HD2, f = 200kHz
HD3, f = 1MHz
HD3, f = 200kHz
SUPPLY VOLTAGE (V)
2.7
FILTER CUTOFF FREQUENCY DEVIATION (%)
0.2
–0.6
–0.4
–0.5
–0.3
–0.2
–0.1
0.0
0.1
–0.8
–0.7
–0.9
3.12.9
6603 G13
3.02.8 3.2 3.3 3.4 3.5 3.6
R
BIAS
= 30.9k
T
A
= 25°C
LPF1 = LPF0 = 0, BW = 156.25kHz
LPF1 = 0, LPF0 = 1,
BW = 625kHz
LPF1 = 1, BW = 2.5MHz
TEMPERATURE (°C)
–50
FILTER CUTOFF FREQUENCY DEVIATION (%)
1.0
–0.6
–0.2
–0.4
0.0
0.2
0.4
0.6
0.8
–0.8
30–10
6603 G14
10–30 50 70 90
V
S
= 3V
R
BIAS
= 30.9k
BW = 2.5MHz
BW = 156.25kHz
BW = 625kHz