Datasheet

LTC2481
7
2481fc
TYPICAL PERFORMANCE CHARACTERISTICS
RMS Noise vs V
CC
RMS Noise vs V
REF
Offset Error vs V
IN(CM)
Offset Error vs Temperature Offset Error vs V
CC
Offset Error vs V
REF
RMS Noise
vs Input Differential Voltage RMS Noise vs V
IN(CM)
RMS Noise vs Temperature (T
A
)
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
V
CC
= 5V
V
REF
= 5V
V
IN(CM)
= 2.5V
T
A
= 25°C
V
IN(CM)
(V)
–1
RMS NOISE (µV)
0.8
0.9
1.0
24
2481 G11
0.7
0.6
01
356
0.5
0.4
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
V
IN(CM)
= GND
GAIN = 256
T
A
= 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
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
V
IN(CM)
= GND
GAIN = 256
V
CC
(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
V
REF
= 2.5V
V
IN
= 0V
V
IN(CM)
= GND
GAIN = 256
T
A
= 25°C
V
REF
(V)
0
0.4
RMS NOISE (µV)
0.5
0.6
0.7
0.8
0.9
1.0
1234
2481 G14
5
V
CC
= 5V
V
IN
= 0V
V
IN(CM)
= GND
GAIN = 256
T
A
= 25°C
V
IN(CM)
(V)
–1
OFFSET ERROR (ppm OF V
REF
)
0.1
0.2
0.3
24
2481 G15
0
–0.1
01
356
–0.2
–0.3
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
T
A
= 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
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
V
IN(CM)
= GND
V
CC
(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
V
IN
= 0V
V
IN(CM)
= GND
T
A
= 25°C
V
REF
(V)
0
–0.3
OFFSET ERROR (ppm OF V
REF
)
–0.2
–0.1
0
0.1
0.2
0.3
1234
2481 G18
5
V
CC
= 5V
REF
–
= GND
V
IN
= 0V
V
IN(CM)
= GND
T
A
= 25°C