LM4040_07 Datasheet, PDF (1/6 Pages) Zetex Semiconductors – Precision micropower shunt voltage references

LM4040
Precision micropower shunt voltage references
Description
The LM4040 is a family of bandgap circuits
designed to achieve precision micro-power
voltage references of 2.5V and 5.0V. The
devices are available in 0.5% C-grade and 1%
D-grade initial tolerances.
They are available in small outline SOT23
surface mount package which is ideal for
applications where space saving is important.
Features
Excellent performance is maintained over the
60µA to 15mA 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 LM4040 voltage reference.
Applications
• Small packages: SOT23
• No output capacitor required
• Output voltage tolerance
• LM4040C ±0.5% at 25°C
• LM4040D ±1% at 25°C
• Low output noise
(10Hz to 10kHz) .............. 45␮V_RMS
• Wide operating current range 60␮A to 15mA
• Extended temperature range -40°C to +125°C
• Low temperature coefficient 100 ppm/°C (max)
Pinout information
• Battery powered equipment
• Precision power supplies
• Portable instrumentation
• Portable communications devices
• Notebook and palmtop computers
• Data acquisition systems
LM4040_F (SOT23)
Cathode 1
3_*
Anode 2
Top view
* Pin 3 must be left floating or connected to pin 2
Ordering information
25°C Voltage
Tol. (V)
2.5
0.5%
5.0
2.5
1%
5.0
Order code
LM4040C25FTA
LM4040C50FTA
LM4040D25FTA
LM4040D50FTA
Pack
SOT23
SOT23
SOT23
SOT23
Part
mark
R2C
R5C
R2D
R5D
Status
Preview
Preview
Preview
Preview
Reel size
7”, 180mm
7”, 180mm
7”, 180mm
7”, 180mm
Tape QuantIty
width per reel
8mm 3000
8mm 3000
8mm 3000
8mm 3000
Issue 2 - February 2007
1
© Zetex Semiconductors plc 2007
www.zetex.com