LTC2484
7
2484fd
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
2484 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
2484 G11
0.7
0.6
01
35
6
0.5
0.4
VCC = 5V
VREF = 5V
VIN = 0V
VIN(CM) = GND
TA = 25°C
TEMPERATURE (°C)
–45
0.4
RMS
NOISE
(μV)
0.5
0.6
0.7
0.8
1.0
–30 –15
15
030
45
60
2484 G12
75
90
0.9
VCC = 5V
VREF = 5V
VIN = 0V
VIN(CM) = GND
VCC (V)
2.7
RMS
NOISE
(μV)
0.8
0.9
1.0
3.9
4.7
2484 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
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
2484 G14
5
VCC = 5V
VIN = 0V
VIN(CM) = GND
TA = 25°C
VIN(CM) (V)
–1
OFFSET
ERROR
(ppm
OF
V
REF
)
0.1
0.2
0.3
24
2484 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
2484 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
2484 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
2484 G18
5
VCC = 5V
REF– = GND
VIN = 0V
VIN(CM) = GND
TA = 25°C