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other parts : LM4040  LM4040LP  LM4040DBZ  LM4040DCK  LM4040A20I  LM4040B10I  LM4040A10I  LM4040A82I  LM4040A30I  LM4040B20I 

Texas Instruments

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 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 requiring a minimum current of 45 µA (typ), the LM4040 also is ideal for portable applications. The LM4040xI is characterized for operation over an ambient temperature range of –40°C to 85°C. The LM4040xQ is characterized for operation over an ambient temperature range of –40°C to 125°C.

• 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
• Low Output Noise…35 µVRMS Typ
• Wide Operating Current Range…45 µA Typ to
   15 mA
• Stable With All Capacitive Loads; No Output
   Capacitor Required
• Available in Extended Temperature
   Range…–40°C to 125°C

• Data-Acquisition Systems
• Power Supplies and Power-Supply Monitors
• Instrumentation and Test Equipment
• Process Controls
• Precision Audio
• Automotive Electronics
• Energy Management
• Battery-Powered Equipment



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