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Details for Texas Instruments


Precision micropower shunt voltage reference
Buy Directly from Texas Instruments (4775 in Stock)
$0.3200 per unit
Series Information for LM4040D50QDBZR - Texas Instruments


  • feature
    Available in Extended Temperature Range: u201340u00b0C
  • feature
    Fixed Output Voltages of 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V
  • feature
    Low Output Noise: 35 u03bcVRMS Typ
  • feature
    Stable With All Capacitive Loads; No Output Capacitor Required
  • feature
    Tight Output Tolerances and Low Temperature Coefficient u2013 Max 0.1%, 100 ppm/u00b0C u2013 A Grade u2013 Max 0.2%, 100 ppm/u00b0C u2013 B Grade u2013 Max 0.5%, 100 ppm/u00b0C u2013 C Grade u2013 Max 1.0%, 150 ppm/u00b0C u2013 D Grade
  • feature
    Wide Operating Current Range: 45 u03bcA Typ to 15 mA


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-toperformance 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.


Reference Type:
Reference Voltage:
Reference Voltage Tolerance:
Voltage Reference Case Style:
No. of Pins:
Temperature Coefficient:
± 15ppm/°C
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Alternate Descriptions

Avnet America

V-Ref Precision 5V 15mA 3-Pin SOT-23 T/R

Avnet America product

Avnet Europe

V-Ref Precision 5V 15mA 3-Pin SOT-23 T/R

Avnet Europe product

Texas Instruments

Precision micropower shunt voltage reference

Texas Instruments product