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.
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| Part number | Order | Reference voltage | VO (V) | VO adj (Min) (V) | VO adj (Max) (V) | Initial accuracy (Max) (%) | Temp coeff (Max) (ppm/ degree C) | Rating | Operating temperature range (C) | Iz for regulation (Min) (uA) | Iout/Iz (Max) (mA) | Package Group |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LM4040 |
|
Fixed |
2.048
2.5 3 4.096 5 8.192 10 |
2.048 | 10 |
0.1
0.2 0.5 1 |
150 | Catalog |
-40 to 125
-40 to 85 |
45
47 50 65 67 75 |
15 |
SC70 | 5
SOT-23 | 3 TO-92 | 3 |
| LM4040-N |
|
Fixed |
2.048
2.5 3 4.096 5 8.192 10 |
2.048 | 10 |
0.1
0.2 0.5 1 2 |
100
150 |
Catalog | -40 to 85 |
60
60 62 68 74 91 100 |
15 |
SC70 | 5
SOT-23 | 3 TO-92 | 3 |
