Precision Micropower Shunt Voltage Reference - LM4040-N

LM4040-N (ACTIVE)

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)

View more

Parametrics Compare all products in Shunt Voltage Reference

 
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)
Min Iz for Regulation (uA)
Iout/Iz (Max) (mA)
Package Group
LM4040-N LM4030 LM4040 LM4040-N-Q1 LM4041-N LM4041-N-Q1 LM4050-N LM4050-N-Q1
Fixed    Fixed      Fixed    Adjustable
Fixed   
Adjustable
Fixed   
Fixed    Fixed   
2.048
2.5
3
4.096
5
8.192
10   
2.5
4.096   
2.048, 2.5, 3, 4.096, 5, 8.192, 10    2.5
3   
1.225    1.225    2.048
2.5
4.096
5
8.192
10   
2.048
2.5
4.096
5
8.192
10   
2.048    2.5      2.048    1.24    1.24    2.048    2.048   
10    4.096      3    10    10    10    10   
0.1
0.2
0.5
1
2   
0.05
0.1
0.15   
0.1, 0.2, 0.5, 1.0    0.1
0.2
0.5
1
2   
0.1
0.2
0.5
1
2   
0.1
0.2
0.5
1
2   
0.1
0.2
0.5   
0.1
0.2
0.5   
100
150   
10
20
30   
150    100
150   
100
150   
100
150   
50    50   
Catalog    Catalog    Catalog    Automotive    Catalog    Automotive    Catalog    Automotive   
  -40 to 125    -40 to 125
-40 to 85   
-40 to 125    -40 to 125
-40 to 85   
-40 to 125
-40 to 85   
-40 to 125
-40 to 85   
-40 to 125
-40 to 85   
60
60
62
68
74
91
100   
120    45, 47, 50, 65, 67, 75    60
60
62
68
74
91
100   
60    60    60
60
68
74
91
100   
60
60
68
74
91
100   
15    30    15    15    12    12    15    15   
SC70
SOT-23
TO-92   
SOT-23    SC70
SOT-23
TO-92   
SOT-23    SC70
SOT-23
TO-92   
SOT-23    SOT-23    SOT-23   

Other qualified versions of LM4040-N

Version Part Number Definition
Automotive LM4040-N-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects