![](http://datasheet.mmic.net.cn/Linear-Technology/LTC2481HDD-TRPBF_datasheet_105430/LTC2481HDD-TRPBF_7.png)
LTC2481
7
2481fc
TYPICAL PERFORMANCE CHARACTERISTICS
RMS Noise vs VCC
RMS Noise vs VREF
Offset Error vs VIN(CM)
Offset Error vs Temperature
Offset Error vs VCC
Offset Error vs VREF
RMS Noise
vs Input Differential Voltage
RMS Noise vs VIN(CM)
RMS Noise vs Temperature (TA)
INPUT DIFFERENTIAL VOLTAGE (V)
0.4
RMS
NOISE
(ppm
OF
V
REF
)
0.6
0.8
1.0
0.5
0.7
0.9
–1.5
–0.5
0.5
1.5
2481 G10
2.5
–2
–2.5
–1
0
1
2
VCC = 5V
VREF = 5V
VIN(CM) = 2.5V
TA = 25°C
VIN(CM) (V)
–1
RMS
NOISE
(μV)
0.8
0.9
1.0
24
2481 G11
0.7
0.6
01
35
6
0.5
0.4
VCC = 5V
VREF = 5V
VIN = 0V
VIN(CM) = GND
GAIN = 256
TA = 25°C
TEMPERATURE (°C)
–45
0.4
RMS
NOISE
(μV)
0.5
0.6
0.7
0.8
1.0
–30 –15
15
0
304560
2481 G12
75
90
0.9
VCC = 5V
VREF = 5V
VIN = 0V
VIN(CM) = GND
GAIN = 256
VCC (V)
2.7
RMS
NOISE
(μV)
0.8
0.9
1.0
3.9
4.7
2481 G13
0.7
0.6
3.1
3.5
4.3
5.1
5.5
0.5
0.4
VREF = 2.5V
VIN = 0V
VIN(CM) = GND
GAIN = 256
TA = 25°C
VREF (V)
0
0.4
RMS
NOISE
(μV)
0.5
0.6
0.7
0.8
0.9
1.0
123
4
2481 G14
5
VCC = 5V
VIN = 0V
VIN(CM) = GND
GAIN = 256
TA = 25°C
VIN(CM) (V)
–1
OFFSET
ERROR
(ppm
OF
V
REF
)
0.1
0.2
0.3
24
2481 G15
0
–0.1
01
35
6
–0.2
–0.3
VCC = 5V
VREF = 5V
VIN = 0V
TA = 25°C
TEMPERATURE (°C)
–45
–0.3
OFFSET
ERROR
(ppm
OF
V
REF
)
–0.2
0
0.1
0.2
–15
15
30
90
2481 G16
–0.1
–30
0
45
60
75
0.3
VCC = 5V
VREF = 5V
VIN = 0V
VIN(CM) = GND
VCC (V)
2.7
OFFSET
ERROR
(ppm
OF
V
REF
)
0.1
0.2
0.3
3.9
4.7
2481 G17
0
–0.1
3.1
3.5
4.3
5.1
5.5
–0.2
–0.3
REF+ = 2.5V
REF– = GND
VIN = 0V
VIN(CM) = GND
TA = 25°C
VREF (V)
0
–0.3
OFFSET
ERROR
(ppm
OF
V
REF
)
–0.2
–0.1
0
0.1
0.2
0.3
123
4
2481 G18
5
VCC = 5V
REF– = GND
VIN = 0V
VIN(CM) = GND
TA = 25°C