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REF50 Datasheet(PDF) 27 Page - Texas Instruments

Part # REF50
Description  REF50xx Low-Noise, Very Low Drift, Wide VIN Precision Voltage Reference
PDF  52 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

REF50 Datasheet(HTML) 27 Page - Texas Instruments

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200mV more than the output voltage in an unloaded condition. For loaded conditions, Figure 6-6 shows a typical
dropout voltage versus load plot.
8.4.3 Negative Reference Voltage
For applications requiring a negative and positive reference voltage, use REF50xx and OPA735 to provide a
dual-supply reference from a 5V supply. Figure 8-7 shows the REF5025 used to provide a 2.5V supply reference
voltage. The low-drift performance of the REF50xx complements the low offset voltage and zero drift of the
OPA735 to provide an accurate solution for split-supply applications. Verify that the temperature coefficients of
R1 and R2 match.
-
2.5V
+2.5V
+5V
NOTE:Bypasscapacitorsnotshown.
R
1
10kW
R
2
10kW
-
5V
OPA735
+5V
DNC
TEMP
V
OUT
V
IN
GND
DNC
NC
TRIM/NR
REF5025
1 F
m
Figure 8-7. REF5025 and OPA735 Create Positive and Negative Reference Voltages
www.ti.com
REF50, REF50E
SBOS410O – JUNE 2007 – REVISED OCTOBER 2025
Copyright © 2025 Texas Instruments Incorporated
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27
Product Folder Links: REF50 REF50E



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