ZRT040
4.01V LOW POWER PRECISION REFERENCE SOURCE
DESCRIPTION
The ZRT040 is a m onolithic integrated circuit providing
a precise stable reference voltage of 4.01V at 500µA.
The circuit features a knee current of 150µA and
operation over a wide range of tem peratures and
currents.
The ZRT040 is available in a SOT223 package for
surface m ount applications. This device offers a trim
facility whereby the output voltage can be adjusted as
s h o w n in Fig .1 . Th is fa c ilit y is u s e d w h e n
co m p e n s a tin g fo r s ys te m e rro rs o r s e ttin g th e
reference output to a particular value. When the trim
facility is not used, the pin should be left open circuit.
SOT223
FEATURES
• Trim m able output
• Excellent tem perature stability
• Low output noise figure
• Available in three tem perature ranges
• 1 and 2% initial voltage tolerance versions
available
• No external stabilising capacitor required in
m ost cases
• Low slope resistance
SOT223
Package suffix G
• SOT223 sm all outline packages
Top view (pin 4 floating or
connected to pin 2)
ORDERING INFORMATION
DEVICE
TOL% OPERATING
TEMP.
PACKAGE
PARTMARK
ZRT040GC2
ZRT040GC1
ZRT040GA1
2
1
1
-40 to 85°C
-40 to 85°C
-55 to 125°C
SOT223
SOT223
SOT223
ZRT040C2
ZRT040C1
ZRT040A1
A grade
C grade
-55°C to 125°C
-40°C to 85°C
ISSUE 4 - DECEMBER 2003
S E M IC O N D U C T O R S
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