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SLCS146A − FEBRUARY 2005 − REVISED FEBRUARY 2005
D
D
1.225-V Fixed and Adjustable Outputs
(1.225 V to 10 V)
D
D
Available in
− Industrial Temperature: −40°C to 85°C
− Extended Temperature: −40°C to 125°C
Tight Output Tolerances and Low
Temperature Coefficient
Applications
− Max 0.1%, 100 ppm/5C − A Grade
− Max 0.2%, 100 ppm/5C − B Grade
− Max 0.5%, 100 ppm/5C − C Grade
− Max 1.0%, 150 ppm/5C − D Grade
− Data-Acquisition Systems
− Power Supplies and Power-Supply
Monitors
− Instrumentation and Test Equipment
− Process Control
D
D
D
Low Output Noise . . . 20 µV
(Typ)
RMS
− Precision Audio
Wide Operating Current Range . . .
60 µA to 12 mA
Stable With All Capacitive Loads; No
Output Capacitor Required
− Automotive Electronics
− Energy Management/Metering
− Battery-Powered Equipment
1.2 V . . . DBZ (SOT-23) PACKAGE
1.2 V . . . DCK (SC-70) PACKAGE
(TOP VIEW)
1.2 V . . . LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
(TOP VIEW)
1
1
ANODE
ANODE
NC
NC
CATHODE
ANODE
5
4
†
NC
3
†
2
3
NC
CATHODE
NC
2
CATHODE
NC − No internal connection
This pin is connected internally to
ANODE via die substrate; leave open
or connect to ANODE.
NC − No internal connection
†
†
NC − No internal connection
This pin is connected internally to
ANODE via die substrate; leave open
or connect to ANODE.
Adjustable . . . DBZ (SOT-23) PACKAGE
(TOP VIEW)
Adjustable . . . DCK (SC-70) PACKAGE
(TOP VIEW)
Adjustable . . . LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
5
1
1
FB
FB
NC
ANODE
ANODE
3
2
3
ANODE
CATHODE
FB
2
CATHODE
4
NC
CATHODE
NC − No internal connection
description/ordering information
The LM4041 series of shunt voltage references are versatile, easy-to-use references with a vast array of
applications. They require no external resistors or capacitors for operation and are stable with all capacitive
loads. Additionally, the reference offers low dynamic impedance, low noise, and a low temperature coefficient
to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4041 uses
fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances,
ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered
to designers in choosing the best cost-to-performance ratio for their applications. The LM4041 is available in
a fixed (1.225 V nominal) or an adjustable version (which requires an external resistor divider to set the output
to a value between 1.225 V and 10 V).
Packaged in space-saving SC-70 and SOT-23-3 and operating from a minimum current of 60 to 100 µA, the
LM4041 also is ideal for portable applications. The TO-92 package also is available for through-hole packaging
needs. The LM4041xI is characterized for operation over an ambient temperature range of −40°
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e
LM4041xQ is characterized for operation over an ambient temperature range of −40°C to 125°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright 2005, Texas Instruments Incorporated
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