4.01V LOW POWER PRECISION REFERENCE SOURCE
ZRT040
DESCRIPTION
The ZRT040 is a monolithic 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 temperatures and
currents.
The ZRT040 is available in a SOT223 package for
surface mount applications. This device offers a trim
facility whereby the output voltage can be adjusted as
shown in Fig.1. This facility is used when
compensating for system errors or setting the
reference output to a particular value. When the trim
facility is not used, the pin should be left open circuit.
FEATURES
• Trimmable output
• Excellent temperature stability
• Low output noise figure
• Available in three temperature ranges
• 1 and 2% initial voltage tolerance versions
available
• No external stabilising capacitor required in
most cases
• Low slope resistance
• SOT223 small outline packages
ORDERING INFORMATION
DEVICE
TOL% OPERATING
TEMP.
ZRT040GC2
2
-40 to 85°C
ZRT040GC1
1
-40 to 85°C
ZRT040GA1
1 -55 to 125°C
A grade
C grade
-55°C to 125°C
-40°C to 85°C
PACKAGE
SOT223
SOT223
SOT223
PARTMARK
ZRT040C2
ZRT040C1
ZRT040A1
SOT223
SOT223
Package suffix G
Top view (pin 4 floating or
connected to pin 2)
ISSUE 4 - DECEMBER 2003
1
SEMICONDUCTORS