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ADR391 View Datasheet(PDF) - Analog Devices

Part NameADR391 ADI
Analog Devices ADI
DescriptionMicropower, Low Noise Precision Voltage References with Shutdown


ADR391 Datasheet PDF : 20 Pages
First Prev 11 12 13 14 15 16 17 18 19 20
25
20
15
10
5
0
–40
–10
20
50
80
TEMPERATURE (°C)
110 125
Figure 15. ADR390 Line Regulation vs. Temperature
25
20
15
10
5
0
–40
–10
20
50
80
TEMPERATURE (°C)
110 125
Figure 16. ADR391 Line Regulation vs. Temperature
14
12
10
8
VIN = 4.4V TO 15V
6
4
2
0
–40
–5
30
65
100
125
TEMPERATURE (°C)
Figure 17. ADR392 Line Regulation vs. Temperature
ADR390/ADR391/ADR392/ADR395
14
12
10
VIN = 5.3V TO 15V
8
6
4
2
0
–40
–5
30
65
100
125
TEMPERATURE (°C)
Figure 18. ADR395 Line Regulation vs. Temperature
3.0
+125°C
2.8
2.6
–40°C
2.4
+25°C
+85°C
2.2
2.0
0
1
2
3
4
5
LOAD CURRENT (mA)
Figure 19. ADR390 Minimum Input Voltage vs. Load Current
3.6
+125°C
3.4
+85°C
3.2
+25°C
3.0
–40°C
2.8
2.6
0
1
2
3
4
5
LOAD CURRENT (mA)
Figure 20. ADR391 Minimum Input Voltage vs. Load Current
Rev. F | Page 11 of 20
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GENERAL DESCRIPTION
The ADR390, ADR391, ADR392, and ADR395 are precision 2.048 V, 2.5 V, 4.096 V, and 5 V band gap voltage references, respectively, featuring low power and high precision in a tiny footprint. Using ADI’s patented temperature drift curvature correction techniques, the ADR39x references achieve a low 9 ppm/°C of temperature drift in the TSOT package.

FEATURES
Compact TSOT-23-5 packages
Low temperature coefficient
   B grade: 9 ppm/°C
   A grade: 25 ppm/°C
Initial accuracy
   B grade: ±4 mV maximum
   A grade: ±6 mV maximum
Ultralow output noise: 5 µV p-p (0.1 Hz to 10 Hz)
Low dropout: 300 mV
Low supply current
   3 µA maximum in shutdown
   120 µA maximum in operation
No external capacitor required
Output current: 5 mA
Wide temperature range
    −40°C to + 125°C

 

APPLICATIONS
Battery-powered instrumentation
Portable medical instrumentation
Data acquisition systems
Industrial process controls
Automotive

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