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SLOS456 − JANUARY 2005
DBZ (SOT-23) PACKAGE
(TOP VIEW)
D
D
Fixed Output Voltages of 2.048 V, 2.5 V, 3 V,
4.096 V, 5 V, 8.192 V, and 10 V
Tight Output Tolerances and Low
Temperature Coefficient
− Max 0.1%, 100 ppm/°C − A Grade
− Max 0.2%, 100 ppm/°C − B Grade
− Max 0.5%, 100 ppm/°C − C Grade
− Max 1.0%, 150 ppm/°C − D Grade
1
CATHODE
ANODE
3*
NC
2
* This pin must be left open or connected to Pin 2, due
to an internal connection to ANODE (die substrate).
D
D
Low Output Noise . . . 35 µV
(Typ)
RMS
Wide Operating Current Range . . .
60 µA to 20 mA
DCK (SC-70) PACKAGE
(TOP VIEW)
D
D
D
Stable With All Capacitive Loads; No
Output Capacitor Required
1
ANODE
NC
CATHODE
5
4
NC
NC
2*
3
Available in Extended Temperature
Range . . . −40°C to 125°C
Applications
− Data Acquisition Systems
− Power Supplies and Power Supply
Monitors
* This pin must be left open or connected to Pin 1, due
to an internal connection to ANODE (die substrate).
LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
− Instrumentation and Test Equipment
− Process Controls
− Precision Audio
− Automotive Electronics
− Energy Management
− Battery Powered Equipment
ANODE
CATHODE
NC
NC – No internal connection
description/ordering information
The LM4040 series of shunt voltage references are versatile, easy-to-use references that cater to a vast array
of applications. The 2-pin fixed output device requires no external resistors or capacitors for operation and is
stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and low
temperature coefficient to ensure a stable output voltage over a wide range of operating currents and
temperatures. The LM4040 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.
Packaged in space-saving SC-70 and SOT-23-3 packages and operating from a minimum current of 60 µA to
100 µA, the LM4040 is also ideal for portable applications. The LM4040xI is characterized for operation over
an ambient temperature range of −40°
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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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