Datasheet

7
LTC2404/LTC2408
RMS Noise vs Reference Voltage Offset Error vs V
CC
Offset Error vs TemperatureNoise Histogram
Full-Scale Error vs Temperature
Full-Scale Error
vs Reference Voltage
RMS Noise vs CODE OUT
Full-Scale Error vs V
CC
RMS Noise vs V
CC
TYPICAL PERFOR A CE CHARACTERISTICS
UW
REFERENCE VOLTAGE (V)
0
RMS NOISE (ppm OF V
REF
)
10
15
4
24048 G10
5
0
1
2
3
5
20
V
CC
= 5V
T
A
= 25°C
V
CC
2.7
–5.0
OFFSET ERROR (ppm)
–2.5
0
2.5
5.0
3.2 3.7 4.2 4.7
24048 G11
5.2
V
REF
= 2.5V
T
A
= 25°C
V
CC
2.7
RMS NOISE (ppm)
0
2.5
5.0
3.2 3.7 4.2 4.7
24048 G12
5.2
V
REF
= 2.5V
T
A
= 25°C
OUTPUT CODE (ppm)
0
NUMBER OF READINGS
500
1000
1500
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
–0.5 0 0.5 1.0
24048 G13
1.5–1.0
CODE OUT (HEX)
0
RMS NOISE (ppm)
0.50
0.75
FFFFFF
24048 G14
0.25
0
7FFFFF
1.00
V
CC
= 5V
V
REF
= 5V
V
IN
= –0.3V TO 5.3V
T
A
= 25°C
TEMPERATURE (°C)
–50
–5.0
OFFSET ERROR (ppm)
–2.5
0
2.5
5.0
–25 0 25 50
24048 G15
75 100 125
V
CC
= 5V
V
REF
= 5V
V
IN
= 0V
TEMPERATURE (°C)
–50
–5.0
FULL-SCALE ERROR (ppm)
–2.5
0
2.5
5.0
–25 0 25 50
24048 G16
75 100 125
V
CC
= 5V
V
REF
= 5V
V
IN
= 5V
REFERENCE VOLTAGE (V)
0
FULL-SCALE ERROR (ppm)
5.0
7.5
4
24048 G17
2.5
0
1
2
3
5
10.0
V
CC
= 5V
V
IN
= V
REF
V
CC
2.7
0
FULL-SCALE ERROR (ppm)
2
1
3
5
4
6
3.2 3.7 4.2 4.7
24048 G18
5.2
V
REF
= 2.5V
V
IN
= 2.5V
T
A
= 25°C