0.1% 3-ppm/°C precision micropower low-dropout series voltage reference with enable pin
Product details
Parameters
Package | Pins | Size
Features
- High Initial Accuracy: 0.1%
- Ultra-Low Noise
- Low Temperature Coefficient: 3 ppm/°C (A Grade)
- Low Voltage Operation: 1.8V
- Low Dropout Voltage: 20 mV (Typical) at 1mA
- Supply Current: 230 µA (Typical), ≤ 1 µA Disable Mode
- Enable Pin
- Output Voltage Options: 1.024 V, 1.25 V, 2.048 V, 2.5 V, and 4.096 V
- Custom Voltages From 0.5 V to 4.5 V
- Temperature Range: 0°C to 70°C
Description
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 industrys 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.
Similar but not functionally equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | LM4140 High Precision Low Noise Low Dropout Voltage Reference datasheet (Rev. F) | Sep. 16, 2016 |
E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | Jun. 28, 2019 | |
White paper | Voltage reference selection basics white paper (Rev. A) | Oct. 23, 2018 | |
Technical articles | Find the "Goldilocks" voltage reference for your application | Sep. 02, 2016 | |
More literature | How to Select the Right Voltage Reference (Rev. A) | Jun. 30, 2015 | |
Selection guide | Voltage Reference Overview | Jul. 26, 2013 | |
Application note | AN-1559 Practical RTD Interface Solutions (Rev. B) | May 01, 2013 | |
Application note | AN-1852 Designing With pH Electrodes (Rev. A) | May 01, 2013 | |
Application note | Improving Machinery Vibration Analysis | Jul. 07, 2006 | |
White paper | A precision interface for a Resistance Temperature Detector (RTD) | Dec. 01, 2004 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
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 (...)
Features
- All-in-one solution for evaluating two DDC2256A devices in a system-like setting
- On-board FPGA, memory, and USB interface allow for data capture and analysis of large sample datasets
- Flexible supply configurations for simple or advanced experimentation
- Various input voltage configurations allow for (...)
Description
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 (...)
Features
- Simplifies prototyping of SMT IC’s
- Supports 6 common package types
- Low Cost
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
Design files
-
download TIDA-00499 BOM.zip (388KB) -
download TIDA-00499 Assembly Drawing.zip (289KB) -
download TIDA-00499 Layer Plots.zip (2806KB) -
download TIDA-00499 Layer Plots (Combined).zip (829KB) -
download TIDA-00499 Altium.zip (10108KB) -
download TIDA-00499 Gerber.zip (4384KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOIC (D) | 8 | View options |
Ordering & quality
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- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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