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FEATURES APPLICATIONS
CATHODE
ANODE
*
1
2
3
DCK (SC-70) PACKAGE
(TOP VIEW)
ANODE
NC
CATHODE
NC
NC
1
2
3
5
4
NC – No internal connection
DBZ (SOT-23-3) PACKAGE
(TOP VIEW)
«
Pin 3 is attached to Substrate and must
be connected to ANODE or left open.
DESCRIPTION/ORDERING INFORMATION
TL4050
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
SLOS486 – JUNE 2007
• Data-Acquisition Systems
• Fixed Output Voltages of 2.048 V, 2.5 V,
4.096 V, 5 V, 8.192 V, and 10 V
• Power Supplies and Power-Supply Monitors
• Instrumentation and Test Equipment
• Tight Output Tolerances and Low
Temperature Coefficient
• Process Controls
• Precision Audio
– Max 0.1%, 50 ppm/ ° C – A Grade
• Automotive Electronics
– Max 0.2%, 50 ppm/ ° C – B Grade
• Energy Management
– Max 0.5%, 50 ppm/ ° C – C Grade
• Battery-Powered Equipment
• Low Output Noise … 41 µ V
RMS
Typ
• Wide Operating Current Range …
60 µ A Typ to 15 mA
• Stable With All Capacitive Loads; No Output
Capacitor Required
• Available in Extended Temperature
Range … –40 ° C to 125 ° C
The TL4050 series of shunt voltage references are versatile easy-to-use references suitable for a wide array of
applications. The two-terminal fixed-output device requires no external 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 TL4050 is offered in three initial tolerances, ranging from 0.1% (max) for the A grade to 0.5% (max) for the
C grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for
their applications. Packaged in the space-saving SOT-23-3 and SC-70 packages and requiring a minimum
current of 45 µ A (typ), the TL4050 also is ideal for portable applications.
The TL4050xI is characterized for operation over an ambient temperature range of –40 ° C to 85 ° C. The
TL4050xQ 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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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