The LM4140 series of precision references are designed to combine high accuracy, low drift, and noise with low power dissipation in a small package.
The LM4140 is the industry’s first reference with output voltage options lower than the bandgap voltage.
The key to the advance performance of the LM4140 is the use of EEPROM registers and CMOS DACs for temperature coefficient curvature correction and trimming of the output voltage accuracy of the device during the final production testing.
The major advantage of this method is the much higher resolution available with DACs than is available economically with most methods used by other bandgap references.
The low input and dropout voltage, low supply current, and output drive capability of the LM4140 makes this product an ideal choice for battery powered and portable applications.
The LM4140 is available in three grades (A, B, C) with 0.1% initial accuracy and 3, 6, and 10 ppm/°C temperature coefficients. For even lower temperature coefficients, contact Texas Instruments.
The device performance is specified over the temperature range 0°C to 70°C, and is available in compact 8-pin package.
For other output voltage options from 0.5 V to 4.5 V, contact Texas Instruments.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM4140 High Precision Low Noise Low Dropout Voltage Reference datasheet (Rev. F) | PDF | HTML | 16 Sep 2016 |
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | 28 Jun 2019 | ||
| White paper | Voltage reference selection basics white paper (Rev. A) | 23 Oct 2018 | ||
| Technical article | Find the "Goldilocks" voltage reference for your application | 02 Sep 2016 | ||
| More literature | How to Select the Right Voltage Reference (Rev. A) | 30 Jun 2015 | ||
| Application note | AN-1559 Practical RTD Interface Solutions (Rev. B) | 01 May 2013 | ||
| Application note | AN-1852 Designing With pH Electrodes (Rev. A) | 01 May 2013 | ||
| Application note | Improving Machinery Vibration Analysis | 07 Jul 2006 | ||
| White paper | A precision interface for a Resistance Temperature Detector (RTD) | 01 Dec 2004 |
For additional terms or required resources, click any title below to view the detail page where available.
The DDC2256AEVM evaluation module (EVM) is an evaluation kit for the DDC2256A, a 256-channel, current input, 24-bit analog-to-digital (A/D) converter. The EVM kit, comprised of a DUT board and a capture board, contains two DDC2256A (...)
Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.
The (...)
| Package | Pins | Download |
|---|---|---|
| SOIC (D) | 8 | View options |
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.