Datasheet

Data Sheet AD5421
Rev. G | Page 19 of 36
2.5012
2.4994
2.4996
2.4998
2.5000
2.5002
2.5004
2.5006
2.5008
2.5010
–40 100806040
20
0–20
REFOUT1 VOLTAGE (V)
TEMPERATURE (°C)
60 DEVICES SHOWN
09128-036
Figure 37. REFOUT1 Voltage vs. Temperature, 60 Devices Shown
(C Grade Device)
30
0
5
10
15
20
25
0
0.25
0.50 0.75
1.00 1.25
1.50 1.75
2.00
2.25 2.50
2.75
3.00 3.25 3.50 3.75
4.00 4.25 4.50 4.75 5.00
POPULATION (%)
TEMPERATURE COEFFICIENT (ppm/°C)
MEAN TC = 1.5ppm/°C
09128-037
Figure 38. REFOUT1 Temperature Coefficient Histogram
(C Grade Device)
250
0
50
100
150
200
–40 100
8060
40
200–20
ADC CODE (Decimal)
DIE TEMPERATURE (°C)
V
LOOP
= 24V
EXT NMOS
R
LOAD
= 250Ω
I
LOOP
= 3.2mA
09128-038
Figure 39. On-Chip ADC Code vs. Die Temperature
250
200
150
100
50
0
0 2.52.01.51.00.5
ADC CODE (Decimal)
V
LOOP
PIN INPUT VOLTAGE (V)
V
LOOP
= 24V
EXT NMOS
T
A
= 25°C
09128-039
Figure 40. On-Chip ADC Code vs. V
LOOP
Pin Input Voltage