Datasheet

Data Sheet ADR420/ADR421/ADR423/ADR425
Rev. J | Page 13 of 24
012345
02432-022
LOAD CURRENT (mA)
DIFFERENTIAL VOLTAGE (V)
2.5
2.0
1.5
1.0
0.5
0
–40°C
+125°C
+25°C
Figure 21. ADR423 Minimum Input/Output Voltage
Differential vs. Load Current
012345
02432-023
LOAD CURRENT (mA)
DIFFERENTIAL VOLTAGE (V)
2.5
2.0
1.5
1.0
0.5
0
–40°C
+125°C
+25°C
Figure 22. ADR425 Minimum Input/Output Voltage
Differential vs. Load Current
–100
–90 –80 –70 –60 –50 –40 –30 –20 –10
0
10 20 30 40 50 60 70 80 90
100
110
120 130
MORE
02432-024
DEVIATION (ppm)
NUMBER OF PARTS
30
20
25
15
10
5
0
SAMPLE SIZE – 160
TEMPERATURE
+25°C –40°C
+125°C +25°C
Figure 23. ADR421 Typical Hysteresis
02432-025
TIME (1s/DIV)
1µV/DIV
Figure 24. ADR421 Typical Noise Voltage 0.1 Hz to 10 Hz
02432-026
TIME (1s/DIV)
50µV/DIV
Figure 25. Typical Noise Voltage 10 Hz to 10 kHz
02432-027
FREQUENCY (Hz)
VOLTAGE NOISE DENSITY (nV/ Hz)
ADR423
ADR421
ADR420
ADR425
10 100
10
100
1k
1k 10k
Figure 26. Voltage Noise Density vs. Frequency