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LM4040A10
,
LM4040A20
SLOS456M –JANUARY 2005–REVISED JANUARY 2015
LM4040xxx Precision Micropower Shunt Voltage Reference
1 Features 3 Description
The LM4040 series of shunt voltage references are
1
• Fixed Output Voltages of 2.048 V, 2.5 V, 3 V,
versatile, easy-to-use references that cater to a vast
4.096 V, 5 V, 8.192 V, and 10 V
array of applications. The 2-pin fixed-output device
• Tight Output Tolerances and Low Temperature
requires no external capacitors for operation and is
Coefficient
stable with all capacitive loads. Additionally, the
reference offers low dynamic impedance, low noise,
– Max 0.1%, 100 ppm/°C – A Grade
and low temperature coefficient to ensure a stable
– Max 0.2%, 100 ppm/°C – B Grade
output voltage over a wide range of operating
– Max 0.5%, 100 ppm/°C – C Grade
currents and temperatures. The LM4040 uses fuse
– Max 1.0%, 150 ppm/°C – D Grade
and Zener-zap reverse breakdown voltage trim during
wafer sort to offer four output voltage tolerances,
• Low Output Noise: 35 μV
RMS
Typ
ranging from 0.1% (max) for the A grade to 1% (max)
• Wide Operating Current Range: 45 μA Typ to 15
for the D grade. Thus, a great deal of flexibility is
mA
offered to designers in choosing the best cost-to-
• Stable With All Capacitive Loads; No Output
performance ratio for their applications.
Capacitor Required
Packaged in space-saving SC-70 and SOT-23-3
• Available in Extended Temperature Range: –40°C
packages and requiring a minimum current of 45 μA
to 125°C
(typ), the LM4040 also is ideal for portable
applications. The LM4040xI is characterized for
operation over an ambient temperature range of
2 Applications
–40°C to 85°C. The LM4040xQ is characterized for
• Data-Acquisition Systems
operation over an ambient temperature range of
• Power Supplies and Power-Supply Monitors
–40°C to 125°C.
• Instrumentation and Test Equipment
Device Information
(1)
• Process Controls
PART NUMBER PACKAGE (PIN) BODY SIZE (NOM)
• Precision Audio
SOT-23 (3) 2.92 mm × 1.30 mm
• Automotive Electronics
LM4040xxx
SC70 (6) 2.00 mm × 1.25 mm
• Energy Management
(1) For all available packages, see the orderable addendum at
• Battery-Powered Equipment
the end of the data sheet.
4 Simplified Schematic
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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