LTC6911C-1 查看數據表（PDF） - Linear Technology
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LTC6911C-1 Datasheet PDF : 20 Pages
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LTC6911-1/LTC6911-2
TYPICAL PERFOR A CE CHARACTERISTICS (LTC6911-1)
LTC6911-1 Gain Shift
vs Temperature
0.100
0.075
0.050
GAIN = 100
VS = 5V
OUTPUT UNLOADED
0.025 GAIN = 10
0
GAIN = 1
–0.025
–0.050
–0.075
–0.100
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
6911 G01
LTC6911-1 Channel Isolation
vs Frequency
120
115
GAIN = 1
110
VS = 5V
VOUT = 1VRMS
105 GAIN = 10
100
95
GAIN = 100
90
85
100k
FREQUENCY (Hz)
1M
6911 G04
LTC6911-1 Distortion vs Frequency
with Light Loading (RL = 10k)
–30
VS = ±2.5V
–40 VOUT = 1VRMS (2.83VP-P)
–50
GAIN = 100
–60
–70
GAIN = 10
–80
–90
GAIN = 1
–100
0
50k
100k
150k
200k
FREQUENCY (Hz)
6911 G07
10
LTC6911-1 Frequency Response
50
VS = 10V, VIN = 5mVRMS
GAIN OF 100 (DIGITAL INPUT 111)
40
30 GAIN OF 50 (DIGITAL INPUT 110)
GAIN OF 20 (DIGITAL INPUT 101)
20
GAIN OF 10 (DIGITAL INPUT 100)
10 GAIN OF 5 (DIGITAL INPUT 011)
GAIN OF 2 (DIGITAL INPUT 010)
0
GAIN OF 1 (DIGITAL INPUT 001)
–10
100
1k 10k 100k 1M 10M
FREQUENCY (Hz)
6911 G02
LTC6911-1 Power Supply
Rejection vs Frequency
90
VS = ±2.5V
80
GAIN = 1
70
+SUPPLY
60
–SUPPLY
50
40
30
20
10
0
1k
10k
100k
1M
10M
FREQUENCY (Hz)
6911 G05
LTC6911-1 Distortion vs Frequency
with Heavy Loading (RL = 500Ω)
–30
VS = ±2.5V
–40 VOUT = 1VRMS (2.83VP-P)
GAIN = 100
–50
GAIN = 10
–60
GAIN = 1
–70
–80
–90
–100
0
50k
100k
150k
200k
FREQUENCY (Hz)
6911 G08
LTC6911-1 –3dB Bandwidth
vs Gain Setting
8.0
7.5
7.0
•
6.5
6.0 •
5.5
5.0
•
4.5
4.0
•
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
1
VIN = 5mVRMS
• VS = 2.7V
• VS = ±5V
•
•
•• ••
10
GAIN
••
100
6911 G03
LTC6911-1 Noise Density
vs Frequency
100
VS = ±2.5V
TA = 25°C
INPUT REFERRED
GAIN = 1
GAIN = 10
10
GAIN = 100
1
1k
10k
100k
FREQUENCY (Hz)
6911 G06
LTC6911-1 THD + Noise
vs Input Voltage
–20
–30
GAIN = 100
–40
GAIN = 10
–50
–60
–70
–80
–90
fIN = 1kHz
–100 VS = ±5V
BW = 100Hz TO 22kHz
–110
1m
10n
0.1
GAIN = 1
1
10
INPUT VOLTAGE (VP-P)
6911 G09
sn691112 691112fs
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