LTC2487
Typical perForMance characTerisTics
RMS Noise
vs Input Differential Voltage
RMS Noise vs V
RMS Noise vs Temperature (T )
A
IN(CM)
1.0
0.9
0.8
0.7
1.0
0.9
0.8
0.7
0.6
0.5
0.4
1.0
0.9
V
V
V
T
= 5V
= 5V
V
V
V
V
F
= 5V
= 5V
V
V
V
T
= 5V
= 5V
CC
REF
IN
A
O
CC
REF
IN
CC
REF
= 0V
= 0V
= 2.5V
IN(CM)
= 25°C
= GND
= GND
= 25°C
IN(CM)
A
O
F
= GND
F
= GND
O
0.8
0.7
GAIN = 256
GAIN = 256
0.6
0.5
0.4
0.6
0.5
0.4
3
5
6
–1
0
1
2
4
–45
0
30 45 60 75 90
–30 –15
15
–2.5 –2 –1.5 –1 –0.5
0
0.5
1
1.5
2
2.5
TEMPERATURE (°C)
V
(V)
INPUT DIFFERENTIAL VOLTAGE (V)
IN(CM)
2487 G11
2487 G12
2487 G10
RMS Noise vs V
RMS Noise vs V
Offset Error vs V
IN(CM)
CC
REF
0.3
0.2
0.1
0
1.0
0.9
0.8
0.7
1.0
0.9
V
V
V
T
= 5V
= 0V
V
V
V
T
= 5V
= 5V
V
V
V
T
= 2.5V
CC
IN
CC
REF
IN
REF
= 0V
IN
IN(CM)
= GND
= 0V
= GND
= 25°C
IN(CM)
= 25°C
= 25°C
= GND
A
O
A
O
A
O
F
= GND
F
F
= GND
0.8
0.7
GAIN = 256
GAIN = 256
0.6
0.5
0.4
–0.1
–0.2
–0.3
0.6
0.5
0.4
3
5
6
–1
0
1
2
4
4.3
(V)
5.1 5.5
0
1
2
3
(V)
4
5
2.7 3.1 3.5 3.9
V
4.7
V
V
(V)
REF
IN(CM)
CC
2487 G15
2487 G13
2487 G14
Offset Error vs Temperature
Offset Error vs V
Offset Error vs V
REF
CC
0.3
0.2
0.3
0.2
0.1
0
0.3
0.2
+
V
= 5V
REF = 2.5V
V
V
V
V
F
= 5V
CC
CC
–
–
REF = GND
REF = GND
= 5V
REF
V
V
T
= 0V
V
V
T
= 0V
= 0V
IN
IN(CM)
IN
IN(CM)
A
O
IN
IN(CM)
= GND
= 25°C
= GND
= 25°C
= GND
= GND
A
O
O
0.1
0.1
0
F
= GND
F
= GND
0
–0.1
–0.1
–0.2
–0.3
–0.1
–0.2
–0.3
–0.2
–0.3
0
1
2
3
4
5
4.3
(V)
5.1
5.5
2.7 3.1
3.5 3.9
4.7
–45 –30 –15
0
15 30 45 60 75 90
V
(V)
TEMPERATURE (°C)
V
CC
REF
2487 G18
2487 G17
2487 G16
2487fa
ꢆ
Linear [ Linear ]
