LM4040_08 Datasheet, PDF (1/12 Pages) Texas Instruments – PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE

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, 3.0V and 5.0V. The
devices are available in 0.2% B-grade, 0.5% C-
grade and 1% D-grade initial tolerances.
They are available in small outline SOT23 and
SC75 surface mount package which are ideal
for applications where space saving is
important.
Features
• Small packages: SOT23 & SC75
• No output capacitor required
• Output voltage tolerance
• LM4040B ±0.2% at 25°C
• 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
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. The
LM4040 is also available with AEC-Q100
approval; see LM4040Q datasheet
Applications
• Battery powered equipment
• Precision power supplies
• Portable instrumentation
• Portable communications devices
• Notebook and palmtop computers
• Data acquisition systems
LM4040 F (SOT23)
Cathode 3
LM4040 H5 (SC70)
Anode
N/C
1_*
N/C
Anode 2
Top view
* Pin 1 must be left floating or connected to pin 2
Cathode
N/C
Top view
* Pin 1 must be left floating or connected to pin 2
Issue 4 - July 2008
1
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