LTC2480
2480fd
Typical perForMance characTerisTics
RMS Noise
vs Input Differential Voltage
RMS Noise vs VIN(CM)
RMS Noise vs Temperature (TA)
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
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
2480 G10
2.5
–2
–2.5
–1
0
1
2
VCC = 5V
VREF = 5V
GAIN = 256
VIN(CM) = 2.5V
TA = 25°C
VIN(CM) (V)
–1
RMS
NOISE
(V)
0.8
0.9
1.0
2
4
2480 G11
0.7
0.6
0
1
3
5
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
(V)
0.5
0.6
0.7
0.8
1.0
–30 –15
15
0
30 45 60
2480 G12
75 90
0.9
VCC = 5V
VREF = 5V
VIN = 0V
VIN(CM) = GND
GAIN = 256
VCC (V)
2.7
RMS
NOISE
(V)
0.8
0.9
1.0
3.9
4.7
2480 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
(V)
0.5
0.6
0.7
0.8
0.9
1.0
1
2
3
4
2480 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
2
4
2480 G15
0
–0.1
0
1
3
5
6
–0.2
–0.3
VCC = 5V
VREF = 5V
VIN = 0V
GAIN = 256
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
2480 G16
–0.1
–30
0
45 60 75
0.3
VCC = 5V
VREF = 5V
VIN = 0V
VIN(CM) = GND
fO = GND
VCC (V)
2.7
OFFSET
ERROR
(ppm
OF
V
REF
)
0.1
0.2
0.3
3.9
4.7
2480 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
GAIN = 256
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
1
2
3
4
2480 G18
5
VCC = 5V
REF– = GND
VIN = 0V
VIN(CM) = GND
GAIN = 256
TA = 25°C