LTC6915I 查看數據表（PDF） - Linear Technology
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LTC6915I
Linear Technology
LTC6915I Datasheet PDF : 18 Pages
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LTC6915
Typical Performance Characteristics
Error Due to Input RS Mismatch
vs Input Common Mode
80 VS = 3V
60
40
VREF = 0.2V
CIN < 100pF
AV = 16
R+ = 0k, R– = 20k
TA = 25°C R+ = 0k, R– = 15k
20
0
–20
–40
–60
–80
0
R+ = 15k, R– = 0k
R+
+
CIN
–
R–
R+ = 20k, R– = 0k
0.5 1.0 1.5 2.0 2.5 3.0
INPUT COMMON MODE VOLTAGE (V)
6915 G10
Error Due to Input RS Mismatch
vs Input Common Mode
40
VS = 5V
30 VREF = 0.2V
CIN < 100pF
20
AV = 16
TA = 25°C
10
R+ = 0k, R– = 20k
R+ = 0k, R– = 15k
0
–10
–20
–30
–40
0
R+ = 15k, R– = 0k
R+
+
CIN
–
R–
R+ = 20k, R– = 0k
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
INPUT COMMON MODE VOLTAGE (V)
6915 G11
Error Due to Input RS Mismatch
vs Input Common Mode
30 VS = ±5V
VREF = 0V
20 CIN < 100pF
AV = 16
TA = 25°C
10
R+ = 0k, R– = 20k
0
R+ = 0k, R– = 15k
–10
R+
–20
CIN
R–
–30
–5 –4 –3
+
–
–2 –1
R+ = 15k, R– = 0k
R+ = 20k, R– = 0k
0123 45
INPUT COMMON MODE VOLTAGE (V)
6915 G12
Offset Voltage vs Temperature
15
10
VS = ±5V
5
0
VS = 3V
–5
VS = 5V
–10
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
6915 G13
Gain Nonlinearity at Gain = 1
(Gain Nonlinearity Decreases for
Gain > 1)
5
VS = ±2.5V
4 VCM = VREF = 0V
3
RL = 10k
AV = 1
2 TA = 25°C
1
0
–1
–2
–3
–4
–5
–2.4 –1.8 –1.2 –0.6 0 0.6 1.2
OUTPUT VOLTAGE (V)
1.8 2.4
6915 G16
VOS vs REF (Pin 13)
2
VIN+ = VIN– = REF
AV = 16
TA = 25°C
–3
–8
–13
VS = 3V
VS = 5V
–18
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
VREF (V)
6915 G14
Supply Current vs Supply Voltage
1.15
1.10
TA = 85°C
1.05
1.00
0.95
TA = 125°C
0.90
TA = 0°C
0.85
0.80
TA = –50°C
0.75
0.70
2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5
SUPPLY VOLTAGE (V)
6915 G17
8
VOS vs REF (Pin 13)
20
10
VIN+ = VIN– = REF
AV = 16
TA = 25°C
0
VS = 10V
–10
–20
–30
–40
0 12
34 56
VREF (V)
7 8 9 10
6915 G15
CMRR vs Frequency
130
VS = 3V, 5V, ±5V
VIN = 1VP-P
120
110
R+ = R– = 1k
100
90
80
70
1
R+ = 10k, R– = 0k
R+
+
R+ = R– = 10k
–
R–
R+ = 0k, R– = 10k
10
100
FREQUENCY (Hz)
1000
6915 G18
6915fb
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