LM4030 Ultra-high-precision shunt voltage reference | TI.com

LM4030 (ACTIVE) Ultra-high-precision shunt voltage reference

 

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Description

The LM4030 is an ultra-high precision shunt voltage reference, having exceptionally high initial accuracy (0.05%) and temperature stability (10ppm/°C). The LM4030 is available with fixed voltage options of 2.5V and 4.096V. Despite the tiny SOT-23 package, the LM4030 exhibits excellent thermal hysteresis (75ppm) and long-term stability (40ppm) as well as immunity to board stress effects.

The LM4030 is designed to operate without an external capacitor, but any capacitor up to 10µF may be used. The LM4030 can be powered off as little as 120µA (max) but is capable of shunting up to 30mA continuously. As with any shunt reference, the LM4030 can be powered off of virtually any supply and is a simple way to generate a highly accurate system reference.

The LM4030 is available in three grades (A, B, and C). The best grade devices (A) have an initial accuracy of 0.05% with ensured temperature coefficient of 10 ppm/°C or less, while the lowest grade parts (C) have an initial accuracy of 0.15% and a temperature coefficient of 30 ppm/°C.

Features

  • High Output Voltage Accuracy 0.05%
  • Low Temperature Coefficient 10 ppm/°C
  • Extended Temperature Operation -40-125°C
  • Excellent Thermal Hysteresis, 75ppm
  • Excellent Long-Term Stability, 40ppm
  • High Immunity to Board Stress Effects
  • Capable of Handling 50 mA Transients
  • Voltage Options 2.5V, 4.096V
  • SOT-23 Package

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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)
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-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    
   
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    
15     SOT-23 | 3        
LM4050-N-Q1 Order now Fixed     2.048
2.5
4.096
5
8.192
10    
2.048     10     0.1
0.2
0.5    
50     Automotive     -40 to 125
-40 to 85    
60
60
68
74