Data Sheet
OP400
under 25 µV/mA. Line regulation is better than 15 µV/V,
MULTIPLE OUTPUT TRACKING VOLTAGE
REFERENCE
and output voltage drift is under 20 µV/°C. Output voltage
noise from 0.1 Hz to 10 Hz is typically 75 µV p-p from the
10 V output and proportionately less from the 7.5 V, 5 V, and
2.5 V outputs.
Figure 34 shows a circuit that provides outputs of 10 V, 7.5 V, 5 V,
and 2.5 V for use as a system voltage reference. Maximum
output current from each reference is 5 mA with load regulation
10V
15V
10kΩ
22kΩ
1N4002
+
1/4
7.5V
OP400A
–
1μF
10kΩ
2
10kΩ
10kΩ
REF 43
2.5V
REFERENCE
6
+
1/4
OP400A
+
1/4
OP400A
4
5V
–
10kΩ
2μF
–
10kΩ
10kΩ
+
1/4
2.5V
OP400A
–
1μF
Figure 34. Multiple Output Tracking Voltage Reference
Rev. H | Page 13 of 16
ADI [ ADI ]
