LTC2430/LTC2431
典型PERFOR一个CE特征
RMS噪声VS V
INCM
3.4
V
CC
= 5V
REF
+
= 5V
REF
–
= GND
V
IN
= 0V
V
INCM
= GND
F
O
= GND
T
A
= 25°C
3.4
3.2
RMS噪声（ μV ）
RMS噪声（ μV ）
RMS噪声（ μV ）
3.0
2.8
2.6
2.4
–1
0
1
3
2
V
INCM
(V)
4
5
6
RMS噪声VS V
REF
3.4
失调误差（ ppm的V型
REF
)
失调误差（ ppm的V型
REF
)
3.2
RMS噪声（ μV ）
3.0
V
CC
= 5V
REF
–
= GND
V
IN
= 0V
V
INCM
= GND
F
O
= GND
T
A
= 25°C
2.8
2.6
2.4
0
1
3
2
V
REF
(V)
失调误差VS V
CC
1.0
0.8
5
4
满量程误差（ ppm的V型
REF
)
失调误差（ ppm的V型
REF
)
失调误差（ ppm的V型
REF
)
0.6
0.4
0.2
0
REF
+
= V
CC
REF
–
= GND
V
IN
= 0V
V
INCM
= GND
F
O
= GND
T
A
= 25°C
2.7
3.1
3.5
3.9 4.3
V
CC
(V)
4.7
5.1
5.5
–0.2
–0.4
–0.6
–0.8
–1.0
ü W
24301 G11
RMS噪声与温度（T
A
)
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
V
INCM
= GND
F
O
= GND
3.4
RMS噪声VS V
CC
REF
+
= 2.5V
REF
–
= GND
V
IN
= 0V
V
INCM
= GND
F
O
= GND
T
A
= 25°C
3.2
3.2
3.0
3.0
2.8
2.8
2.6
2.6
2.4
–50
2.4
–25
0
25
50
温度（℃）
75
100
2.7
3.1
3.5
3.9 4.3
V
CC
(V)
4.7
5.1
5.5
24301 G12
24301 G13
失调误差VS V
INCM
1.0
0.8
0.6
0.4
0.2
0
V
CC
= 5V
REF
+
= 5V
REF
–
= GND
V
IN
= 0V
F
O
= GND
T
A
= 25°C
–1
0
1
3
2
V
INCM
(V)
4
5
6
1.0
0.8
0.6
0.4
0.2
0
失调误差与温度
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
V
CC
= 5V
V
REF
=5V
V
IN
= 0V
V
INCM
= GND
F
O
= GND
0 15 30 45 60
温度（℃）
75
90
4
5
24301 G14
–1.0
–45 –30 –15
24301 G15
24301 G16
失调误差VS V
REF
20
满量程误差与温度
3
2
1
0
–1
–2
–3
–4
–5
0
V
CC
= 5V
REF
–
= GND
V
IN
= 0V
V
INCM
= GND
F
O
= GND
T
A
= 25°C
1
3
2
V
REF
(V)
4
5
24301 G18
+ FS错误
10
V
CC
= 5V
V
REF
= 5V
F
O
= GND
V
INCM
= 2.5V
-FS错误
–10
0
–20
–45 –30 –15
0 15 30 45 60
温度（℃）
75
90
24301 G17
24301 G19
24301f
7
