PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
www.ti.com
SLCS146E – FEBRUARY 2005 – REVISED FEBRUARY 2006
FEATURES
•
•
1.225-V Fixed and Adjustable Outputs
(1.225 V to 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
Low Output Noise . . . 20
µV
RMS
(Typ)
Wide Operating Current Range . . .
45
µA
(Typ) to 12 mA
Stable With All Capacitive Loads; No Output
Capacitor Required
Available in
– Industrial Temperature: –40°C to 85°C
– Extended Temperature: –40°C to 125°C
1.2 V . . . DBZ (SOT-23) PACKAGE
(TOP VIEW)
•
•
•
•
•
Applications
– Data-Acquisition Systems
– Power Supplies and Power-Supply Monitors
– Instrumentation and Test Equipment
– Process Control
– Precision Audio
– Automotive Electronics
– Energy Management/Metering
– Battery-Powered Equipment
1.2 V . . . DCK (SC-70) PACKAGE
(TOP VIEW)
1.2 V . . . LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
CATHODE
1
3 *
ANODE
1
5
3
4
NC
NC
ANODE
CATHODE
NC
NC − No internal connection
*
2
CATHODE
ANODE
2
* Pin 3 must be connected to
ANODE or left open.
NC − No internal connection
* Pin 2 must be connected to
ANODE or left open.
Adjustable . . . DBZ (SOT-23) PACKAGE
(TOP VIEW)
Adjustable . . . DCK (SC-70) PACKAGE
(TOP VIEW)
Adjustable . . . LP (TO-92/TO-226) PACKAGE
(TOP VIEW)
FB
CATHODE
1
3
2
NC
1
ANODE
ANODE
2
5
FB
ANODE
CATHODE
CATHODE
3
4
NC
FB
NC − No internal connection
DESCRIPTION/ORDERING INFORMATION
The LM4041 series of shunt voltage references are versatile, easy-to-use references suitable for a wide array of
applications. They require no external 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).
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2006, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
