LM4040-N 100-ppm/°C precision micropower shunt voltage reference | TI.com

LM4040-N (ACTIVE)

100-ppm/°C precision micropower shunt voltage reference

 

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Description

Ideal for space-critical applications, the LM4040-N precision voltage reference is available in the sub-miniature SC70 and SOT-23 surface-mount package. The advanced design of the LM4040-N eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4040-N easy to use. Further reducing design effort is the availability of several fixed reverse breakdown voltages: 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V. The minimum operating current increases from 60 µA for the 2.5-V LM4040-N to 100 µA for the 10-V LM4040-N. All versions have a maximum operating current of 15 mA.

The LM4040-N uses a fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25°C. Bandgap reference temperature drift curvature correction and low dynamic impedance ensure stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.

Also available is the LM4041-N with two reverse breakdown voltage versions: adjustable and 1.2 V. See the LM4041-N data sheet (SNOS641).

Features

  • SOT-23 AEC Q-100 Grades 1 and 3 available
  • Small Packages: SOT-23, TO-92, and SC70
  • No Output Capacitor Required
  • Tolerates Capacitive Loads
  • Fixed Reverse Breakdown Voltages of 2.048 V,
    2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V
  • Key Specifications (2.5-V LM4040-N)
    • Output Voltage Tolerance (A Grade,
      25°C): ±0.1% (Maximum)
    • Low Output Noise (10 Hz to 10 kHz):
      35 µVrms (Typical)
    • Wide Operating Current Range: 60 µA
      to 15 mA
    • Industrial Temperature Range: –40°C
      to 85°C
    • Extended Temperature Range: –40°C
      to 125°C
    • Low Temperature Coefficient: 100 ppm/°C
      (Maximum)

Parametrics

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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 Iref (uA) I I(dev) (uA)
LM4040-N Order now 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    
   
LM4030 Order now Fixed     2.5
4.096    
2.5     4.096     0.05
0.1
0.15    
10
20
30    
Catalog     -40 to 125     120     30     SOT-23 | 5        
LM4040 Order now 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-Q1 Order now Fixed     2.5
3    
2.048     3     0.1
0.2
0.5
1
2    
100
150    
Automotive     -40 to 125     60
60
62
68
74
91
100    
15     SOT-23 | 3        
LM4041-N Order now Adjustable
Fixed    
1.225     1.24     10     0.1
0.2
0.5
1
2    
100
150    
Catalog     -40 to 125
-40 to 85    
60     12     SC70 | 5
SOT-23 | 3
TO-92 | 3    
0.06     0.09    
LM4041-N-Q1 Order now Adjustable
Fixed    
1.225     1.24     10     0.1
0.2
0.5
1
2    
100
150    
Automotive     -40 to 125
-40 to 85    
60     12     SOT-23 | 3     0.06     0.09    
LM4050-N Order now Fixed     2.048
2.5
4.096
5
8.192
10    
2.048     10     0.1
0.2
0.5    
50     Catalog     -40 to 125
-40 to 85    
60
60
68
74
91
100