Datasheet

LTC2430/LTC2431
7
24301f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
RMS Noise vs V
INCM
RMS Noise vs Temperature (T
A
)
V
INCM
(V)
–1 0
2.4
RMS NOISE (µV)
2.8
3.4
1
3
4
24301 G11
2.6
3.2
3.0
2
5
6
V
CC
= 5V
REF
+
= 5V
REF
–
= GND
V
IN
= 0V
V
INCM
= GND
F
O
= GND
T
A
= 25°C
TEMPERATURE (°C)
–50
2.4
RMS NOISE (µV)
2.6
2.8
3.0
3.2
3.4
–25
02550
24301 G12
75 100
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
V
INCM
= GND
F
O
= GND
RMS Noise vs V
CC
V
CC
(V)
2.7 3.1
2.4
RMS NOISE (µV)
2.8
3.4
3.5
4.3
4.7
24301 G13
2.6
3.2
3.0
3.9
5.1
5.5
REF
+
= 2.5V
REF
–
= GND
V
IN
= 0V
V
INCM
= GND
F
O
= GND
T
A
= 25°C
RMS Noise vs V
REF
V
REF
(V)
0
RMS NOISE (µV)
3.0
3.2
3.4
4
24301 G14
2.8
2.6
2.4
1
2
3
5
V
CC
= 5V
REF
–
= GND
V
IN
= 0V
V
INCM
= GND
F
O
= GND
T
A
= 25°C
Offset Error vs V
INCM
V
INCM
(V)
–1
–1.0
OFFSET ERROR (ppm OF V
REF
)
–0.8
–0.4
–0.2
0
1.0
0.4
1
3
4
24301 G15
–0.6
0.6
0.8
0.2
0
2
5
6
V
CC
= 5V
REF
+
= 5V
REF
–
= GND
V
IN
= 0V
F
O
= GND
T
A
= 25°C
Offset Error vs Temperature
Offset Error vs V
REF
TEMPERATURE (°C)
–45
–1.0
OFFSET ERROR (ppm OF V
REF
)
–0.8
–0.4
–0.2
0
1.0
0.4
–15
15
30 90
24301 G16
–0.6
0.6
0.8
0.2
–30 0
45
60
75
V
CC
= 5V
V
REF
=5V
V
IN
= 0V
V
INCM
= GND
F
O
= GND
Offset Error vs V
CC
V
CC
(V)
2.7
–1.0
OFFSET ERROR (ppm OF V
REF
)
–0.8
–0.4
–0.2
0
1.0
0.4
3.5
4.3
4.7
24301 G17
–0.6
0.6
0.8
0.2
3.1
3.9
5.1
5.5
REF
+
= V
CC
REF
–
= GND
V
IN
= 0V
V
INCM
= GND
F
O
= GND
T
A
= 25°C
V
REF
(V)
0
OFFSET ERROR (ppm OF V
REF
)
1
3
5
4
24301 G18
–1
–3
0
2
4
–2
–4
–5
1
2
3
5
V
CC
= 5V
REF
–
= GND
V
IN
= 0V
V
INCM
= GND
F
O
= GND
T
A
= 25°C
Full-Scale Error vs Temperature
TEMPERATURE (°C)
–45
–20
FULL-SCALE ERROR (ppm OF V
REF
)
–10
0
10
20
–30 –15 0 15
24301 G19
30 45 60 75 90
+FS ERROR
–FS ERROR
V
CC
= 5V
V
REF
= 5V
F
O
= GND
V
INCM
= 2.5V