LTC1067C 查看數據表（PDF） - Linear Technology
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LTC1067C Datasheet PDF : 20 Pages
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LTC1067/LTC1067-50
TYPICAL PERFORMANCE CHARACTERISTICS
LTC1067-50
Noise + THD vs Input Voltage
–20
4TH ORDER BUTTERWORTH LPF
–30 VS = SINGLE 5V, fIN = 1kHz
fCLK = 250kHz, f–3dB = 5kHz
–40 RL = 20k
–50
–60
–70
MODE 1
–80
–90
MODE 3
–100
0.1
1
INPUT VOLTAGE (VRMS)
2
1067 G16
LTC1067-50
Noise + THD vs Input Frequency
–60
4TH ORDER BUTTERWORTH LPF
–65
VS = SINGLE 5V, fCLK = 250kHz
VIN = 0.5VRMS, f–3dB = 5kHz, RL = 20k
–70
–75
MODE 1
–80
MODE 3
–85
–90
1
2
3
INPUT FREQUENCY (kHz)
45
1067 G19
LTC1067-50
Output Voltage Swing vs Load
Resistance, ±5V Supply Voltage
10.0
9.8 VS = ±5V
9.6
9.4
9.2
9.0
8.8
8.6
8.4
8.2
8.0
0 2 4 6 8 10 12 14 16 18 20
LOAD RESISTANCE (kΩ TO GND)
1067 G22
LTC1067-50
Noise + THD vs Input Voltage
–20
4TH ORDER BUTTERWORTH LPF
–30 VS = ±5V, fIN = 1kHz
fCLK = 250kHz (225kHz FOR MODE 2)
–40 f–3dB = 10kHz, RL = 20k
–50
–60
–70
MODE 3
MODE 2
–80
MODE 1
–90
–100
0.1
1
INPUT VOLTAGE (VRMS)
5
1067 G17
LTC1067-50
Noise + THD vs Input Frequency
–60
4TH ORDER BUTTERWORTH LPF
–65
VS = ±5V, fCLK = 250kHz
VIN = 1VRMS, f–3dB = 5kHz
RL = 20k
–70
MODE 1
–75
MODE 3
–80
–85
–90
1
2
3
INPUT FREQUENCY (kHz)
45
1067 G20
LTC1067-50
Output Voltage Swing vs Load
Resistance, Single Supply Voltage
5.0
4.5
VS = 5V
4.0
3.5
3.0
VS = 3V
2.5
2.0
1.5
1.0
0
2 4 6 8 10 12 14 16 18 20
LOAD RESISTANCE (kΩ TO V–)
1067 G23
6
LTC1067-50
Noise + THD vs Input Frequency
–60
MODE 1
–65
–70
–75
MODE 3
–80
–85
4TH ORDER BUTTERWORTH LPF
VS = SINGLE 3V, fCLK = 200kHz
VIN = 0.34VRMS, f–3dB = 4kHz, RL = 20k
–90
1
2
3
45
INPUT FREQUENCY (kHz)
1067 G18
LTC1067-50
Noise vs Q
400
350
±5V
300
250
5V
200
150
3V
100
50
0
0 5 10 15 20 25 30 35 40 45 50
Q
1067 G21
LTC1067-50
Power Supply Current
vs Power Supply
2.2
2.0
1.8
70°C
1.6
1.4
20°C
1.2
25°C
1.0
0.8
3
4 5 6 7 8 9 10
TOTAL POWER SUPPLY (V)
1067 G24
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