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REF02 Datasheet(PDF) 10 Page - Analog Devices

Part # REF02
Description  5 V Precision Voltage Reference/Temperature Transducer
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

REF02 Datasheet(HTML) 10 Page - Analog Devices

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REF02
Rev. I | Page 10 of 16
OUTPUT ADJUSTMENT
The REF02 trim terminal can be used to adjust the output
voltage over a 5 V ± 300 mV range. This feature lets the system
designer trim system errors by setting the reference to a voltage
other than 5 V. The output also can be set to exactly 5.00 V or to
5.12 V for binary applications.
Adjustment of the output does not significantly affect the
temperature performance of the device. The temperature
coefficient change is approximately 0.7 ppm/°C for 100 mV of
output adjustment.
U1
REF02
VIN
VOUT
TEMP TRIM
GND
VIN
VO
pot
10k
R2
1k
R1
470k
Figure 14. Output Adjustment Circuit
VIN
GND
–18V
+18V
4
2
REF02
Figure 15. Burn-In Circuit
VIN
GND
REF02
VO
TRIM
TEMP
0.1
µF
5k
OP02
10k
10k
+15V
–15V
+15V
+5V
–5V
4
5
3
6
2
Figure 16. ±5 V Reference
REF02
R1
5.6k
R2
5.6k
2
+5V
4
6
2
OP02
+
3
4
6
7
–9V
VREF
VO+
+2.5V
+VO
–2.5V
VO+ =
(VREF),
R1
R1 + R2
VO– =
(VREF)
R2
R1 + R2
Figure 17. ±2.5 V Reference


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