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Issue 3 - February 2007 1 www.zetex.com
© Zetex Semiconductors plc 2007
LM4041
1.225V Precision micropower shunt voltage reference
Description
Ordering information
The LM4041 is a bandgap circuit designed to
achieve a precision micro-power voltage
reference of 1.225 V. The device is available in
the small outline SOT23 surface mount
packages which is ideal for applications
where space saving is important.
The LM4041 is available to 0.5% C grade for
precision applications. Excellent performance
is maintained over the 60A to 12mA
operating current range with a typical
temperature coefficient of only 20ppm/°C.
The device has been designed to be highly
tolerant of capacitive loads so maintaining
excellent stability.
This device offers a pin for pin compatible
alternative to the LM4041 voltage reference.
Features
• Small packages: SOT23
• No output capacitor required
• Output voltage tolerance
• LM4041C ±0.5% at 25°C
• LM4041D ±1% at 25°C
• Low output noise
(10 Hz to 10kHz) ........... 60Vrms
• Wide operating current range 60
A to 12mA
• Extended temperature range -40°C to +125°C
• Low temperature coefficient 100ppm/°C (max)
Applications
• Battery powered equipment
• Precision power supplies
• Portable instrumentation
• Portable communications devices
• Notebook and palmtop computers
• Data acquisition systems
Pinout information
25°C
tol.
Voltage
(V)
Order code Pack Part
mark
Status Reel size Tape
width
QuantIty
per reel
0.5% 1.225 LM4041CFTA SOT23 R1C Preview 7”, 180mm 8mm 3000
1% 1.225 LM4041DFTA SOT23 R1D Preview 7”, 180mm 8mm 3000
*
Anode
Cathode
LM4041_12F (SOT23)
Top view
* Pin 3 must be left floating or connected to pin 2
1
3
2
Verzeichnis
