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).
| Type | Title | Date | |
|---|---|---|---|
| * | Data sheet | LM4040-N/-Q1 Precision Micropower Shunt Voltage Reference datasheet (Rev. K) | 02 Jun 2016 |
| Application note | Voltage Reference Design Tips For ADC Pairing (Rev. A) | 02 Jun 2021 | |
| E-book | Tips and tricks for designing with voltage references (Rev. A) | 07 May 2021 | |
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 28 Jun 2019 | |
| Technical article | How to use a voltage reference as a voltage regulator | 04 Dec 2018 | |
| Application note | Using Voltage Supervisors in High Voltage Applications | 09 Oct 2018 | |
| Technical article | Can I get that shunt reference to go, please? | 29 Feb 2016 | |
| Application note | AN-1525 Single Supply Operation of the DAC0800 and DAC0802 (Rev. A) | 22 Apr 2013 | |
| Application note | TO-92 Packing Options / Ordering Instructions (Rev. A) | 23 Jun 2010 | |
| Application note | Implementing Single-Chip FPGA Power Solutions | 21 Mar 2007 | |
| Application note | Negative Buck Switching Regulator (using LM258x) | 21 Mar 2007 |
For additional terms or required resources, click any title below to view the detail page where available.
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| Package | Pins | Download |
|---|---|---|
| SC70 (DCK) | 5 | View options |
| SOT-23 (DBZ) | 3 | View options |
| TO-92 (LP) | 3 | View options |
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