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REF80 Datasheet(PDF) 8 Page - Texas Instruments

Part # REF80
Description  REF80 Temperature-Controlled Buried Zener Reference with 0.05ppm/°C Drift and < 1ppm Stability
PDF  23 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

REF80 Datasheet(HTML) 8 Page - Texas Instruments

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6.6 Typical Characteristics (continued)
at TA = 25°C, VIN = 10V, VHEATER = 30V, CREFZ = 10μF, CVDD = 1μF, (unless otherwise noted)
Frequency [Hz]
1x100
1x101
1x102
1x103
1x104
1x105
0
50
100
150
200
250
Figure 6-7. Noise Density vs Frequency
Time [s]
0
100
200
300
400
500
600
700
-15
-12
-9
-6
-3
0
3
6
9
12
15
VDD = 12V
VHeater = 12V
Figure 6-8. Startup Behavior
Time (Hours)
0
200
400
600
800
1000
-20
-10
0
10
20
Avg
Avg + Std dev
Avg - Std dev
Figure 6-9. Long-Term Stability
Frequency (Hz)
1x101
1x102
1x103
1x104
1x105
60
70
80
90
100
110
120
130
Figure 6-10. Power-Supply Rejection Ratio vs Frequency
REF80
SNAS856 – SEPTEMBER 2024
www.ti.com
8
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Copyright © 2024 Texas Instruments Incorporated
Product Folder Links: REF80



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