LTC2412
典型PERFOR一个CE特征
+满量程误差VS V
CC
3
+满量程误差（ ppm的V型
REF
)
2
1
0
–1
–2
REF = GND
V
REF
= 2.5V
IN
+
= 1.25V
IN
–
= GND
F
O
= GND
T
A
= 25°C
3.1
3.5
3.9 4.3
V
CC
(V)
4.7
5.1
5.5
REF
+
= 2.5V
–
+满量程误差（ ppm的V型
REF
)
3
2
1
0
–1
–2
–3
V
CC
= 5V
REF
+
= V
REF
REF
–
= GND
IN
+
= 0.5 REF
+
IN
–
= GND
F
O
= GND
T
A
= 25°C
0
0.5
1
1.5
2 2.5 3
V
REF
(V)
3.5
4
4.5
5
- 满刻度误差（ ppm的V型
REF
)
–3
2.7
- 满量程误差VS V
CC
3
- 满刻度误差（ ppm的V型
REF
)
2
1
0
–1
–2
–3
2.7
- 满刻度误差（ ppm的V型
REF
)
REF
+
= 2.5V
REF
–
= GND
V
REF
= 2.5V
IN
+
= GND
IN
–
= 1.25V
F
O
= GND
T
A
= 25°C
3
2
1
0
–1
–2
–3
抑制（分贝）
3.1
3.5
3.9 4.3
V
CC
(V)
4.7
PSRR VS在V频率
CC
0
–20
–40
抑制（分贝）
–60
–80
–100
–120
–140
1
抑制（分贝）
抑制（分贝）
V
CC
= 4.1V
DC
REF
+
= 2.5V
REF
–
= GND
IN
+
= GND
IN
–
= GND
F
O
= GND
T
A
= 25°C
10
10k 100k
1k
100
在V频率
CC
（赫兹）
ü W
2412 G28
+满量程误差VS V
REF
3
2
1
0
–1
–2
- 满量程误差
与温度（T
A
)
V
CC
= 5V
REF
+
= 5V
REF
–
= GND
IN
+
= GND
IN
–
= 2.5V
F
O
= GND
–3
–45 –30 –15
0 15 30 45 60
温度（℃）
75
90
2412 G29
2412 G30
- 满量程误差VS V
REF
V
CC
= 5V
REF
+
= V
REF
REF
–
= GND
IN
+
= GND
IN
–
= 0.5 REF
+
F
O
= GND
T
A
= 25°C
0
–20
–40
–60
–80
–100
–120
PSRR VS在V频率
CC
V
CC
= 4.1V
DC
±
1.4V
REF
+
= 2.5V
REF
–
= GND
IN
+
= GND
IN
–
= GND
F
O
= GND
T
A
= 25°C
5.1
5.5
0
0.5
1
1.5
2 2.5 3
V
REF
(V)
3.5
4
4.5
5
–140
0.01
0.1
1
10
在V频率
CC
（赫兹）
100
2412 G33
2412 G31
2412 G32
PSRR VS在V频率
CC
0
–20
–40
–60
–80
V
CC
= 4.1V
DC
±1.4V
REF
+
= 2.5V
REF
–
= GND
IN
+
= GND
IN
–
= GND
F
O
= GND
T
A
= 25°C
0
–20
–40
–60
–80
–100
–120
PSRR VS在V频率
CC
V
CC
= 4.1V
DC
±0.7V
P-P
REF
+
= 2.5V
REF
–
= GND
IN
+
= GND
IN
–
= GND
F
O
= GND
T
A
= 25°C
–100
–120
–140
1M
0
30
60 90 120 150 180 210 240
在V频率
CC
（赫兹）
2412 G35
–140
15250
15300
15350
15400
在V频率
CC
（赫兹）
15450
2412 G36
2412 G34
2412f
9
