Fixed voltage, 45-µA, precision micropower shunt voltage reference
Product details
Parameters
Package | Pins | Size
Features
- Fixed Output Voltages of 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V
- Tight Output Tolerances and Low Temperature Coefficient
- Max 0.1%, 100 ppm/°C – A Grade
- Max 0.2%, 100 ppm/°C – B Grade
- Max 0.5%, 100 ppm/°C – C Grade
- Max 1.0%, 150 ppm/°C – D Grade
- Low Output Noise: 35 µVRMS Typ
- Wide Operating Current Range: 45 µA Typ to 15 mA
- Stable With All Capacitive Loads; No Output Capacitor Required
- Available in Extended Temperature Range: –40°C to 125°C
Description
The LM4040 series of shunt voltage references are versatile, easy-to-use references that cater to a vast array of applications. The 2-pin fixed-output device requires no external capacitors for operation and is stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4040 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for their applications.
Packaged in space-saving SC-70 and SOT-23-3 packages and requiring a minimum current of 45 µA (typ), the LM4040 also is ideal for portable applications. The LM4040xI is characterized for operation over an ambient temperature range of –40°C to 85°C. The LM4040xQ is characterized for operation over an ambient temperature range of –40°C to 125°C.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Data sheet | LM4040 Precision Micropower Shunt Voltage Reference datasheet (Rev. N) | Oct. 09, 2017 |
| E-book | Tips and tricks for designing with voltage references (Rev. A) | May 07, 2021 | |
| White paper | Simplifying Signal Chain Design for High Performance in Small Systems | Oct. 22, 2020 | |
| E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | Jun. 28, 2019 | |
| Technical article | How to use a voltage reference as a voltage regulator | Dec. 04, 2018 | |
| White paper | Voltage reference selection basics white paper (Rev. A) | Oct. 23, 2018 | |
| Application note | Using Voltage Supervisors in High Voltage Applications | Oct. 09, 2018 | |
| Technical article | Can I get that shunt reference to go, please? | Feb. 29, 2016 | |
| Technical article | Understanding Voltage References: Ultra-low dropout - not just for the series reference | May 01, 2015 | |
| Technical article | Understanding Voltage References: Shunt vs series. Which topology is right for you? | Apr. 29, 2015 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
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AWR1243BOOST contains everything required to start developing using the MMWAVE-STUDIO environment and the DCA1000 real-time data capture adapter.
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- Standard interface for DCA1000 connectivity and MMWAVE-STUDIO for raw data capture
- TI LaunchPad development-kit interface to seamlessly connect to TI MCUs
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- Onboard antenna enables field testing
- XDS110-based JTAG with serial-port interface for flash programming
- UART-to-USB interface for control, configuration, and data visualization
- TI LaunchPad development-kit interface to seamlessly connect to TI MCUs
- CAN connector enables direct interface to car units
Description
AWR1642BOOST is an easy-to-use 77GHz mmWave sensor evaluation board for the AWR1642 device, with direct connectivity to the microcontroller unit (MCU) LaunchPad™ development-kit ecosystem.
The BoosterPack™ plug-in module contains everything required to start developing software for on-chip C67x (...)
Features
- Onboard antenna enables field testing
- XDS110-based JTAG with serial-port interface for flash programming
- UART-to-USB interface for control, configuration, and data visualization
- TI LaunchPad™ development-kit interface to seamlessly connect to TI MCUs
- CAN connector enables direct interface to car units
Description
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Features
- Single-chip solution with DSP integration and 1.5 MB of on-chip RAM
- Range: up to 15 m
- Resolution: 4 cm
- FOV
- Azimuth: ±70 degrees
- Elevation: ±40 degrees
Description
The AWR1843 BoosterPack™ plug-in module is an easy-to-use 77GHz mmWave sensor evaluation board for the single-chip AWR1843 device, with direct connectivity to the TI MCU LaunchPad™ development-kit ecosystem.
The BoosterPack™ contains everything required to start developing software for on-chip (...)
Features
- Onboard antenna enables field testing
- XDS110-based JTAG with serial-port interface for flash programming
- UART-to-USB interface for control, configuration, and data visualization
- TI LaunchPad development-kit interface to seamlessly connect to TI MCUs
- CAN connector enables direct interfact to car units
Description
The AWR2243 BoosterPack™ plug-in module is an easy-to-use evaluation board for the single-chip AWR2243 mmWave sensing device.
AWR2243BOOST contains everything required to start developing using the MMWAVE-STUDIO environment and the DCA1000 real-time data capture adapter.
The standard 20-pin BoosterPack (...)
Features
- Onboard antenna enables field testing
- Standard interface for DCA1000 connectivity and MMWAVE-STUDIO for raw data capture
- TI LaunchPad development-kit interface to seamlessly connect to TI MCUs
Description
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Description
The IWR1443 BoosterPack™ plug-in module is an easy-to-use 77GHz mmWave sensor evaluation board for the single-chip IWR1443 mmWave sensing device, with direct connectivity to the TI MCU LaunchPad™ development-kit ecosystem.
IWR1443BOOST contains everything required to start developing on a low-power (...)
Features
- Onboard antenna enables field testing
- XDS110-based JTAG with serial-port interface for flash programming
- UART-to-USB interface for control, configuration, and data visualization
- TI LaunchPad development-kit interface to seamlessly connect to TI MCUs
- CAN connector enables direct interface to car units
Description
IWR1642BOOST is an easy-to-use 77GHz mmWave sensor evaluation board for the IWR1642 device , with direct connectivity to the microcontroller (MCU) LaunchPad™ Development Kit.
The BoosterPack™ contains everything required to start developing software for on-chip C67x DSP core and low-power (...)
Features
- Onboard antenna to enable field testing
- XDS110-based JTAG with serial port interface for flash programming
- UART-to-USB interface for control, configuration, and data visualization
- TI LaunchPad interface to seamlessly connect to TI MCUs
- CAN connector enables direct interface to car units
Description
The IWR1843 BoosterPack™ plug-in module is an easy-to-use 77GHz mmWave sensor evaluation board for the single-chip IWR1843 device, with direct connectivity to the TI MCU LaunchPad™ development-kit ecosystem.
The BoosterPack™ contains everything required to start developing software for on-chip (...)
Features
- Onboard antenna enables field testing
- XDS110-based JTAG with serial-port interface for flash programming
- UART-to-USB interface for control, configuration, and data visualization
- TI LaunchPad development-kit interface to seamlessly connect to TI MCUs
- CAN connector enables direct interfact to car units
Description
Features
Hardware Features
- TMS320F280049C: 100 MHz C28x CPU with FPU and TMU, 256 KB Flash, InstaSPIN-FOC enabled, 3x 12-bit ADC, CAN, encoder, FSI, UART, and more
- On-board XDS110 debug probe for real-time debug and flash programming
- 80 pin LaunchPad leveraging the BoosterPack ecosystem
- Power domain isolation (...)
Description
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Features
- Modular connectivity to mmWave antenna plug-in module
- BoosterPack™ plug-in module interface
- Debug and emulation through onboard XDS110
- DCA1000EVM interface for raw ADC data capture
- Compatible with mmWave studio (MMWAVE-STUDIO) tools, including mmWave demo visualizer (MMWAVE-DEMO-VISUALIZER)
Description
MMWAVEPOEEVM enables Power over Ethernet (PoE) for the TI mmWave sensors carrier card platform (MMWAVEICBOOST and compatible HW moduels sold separately). MMWAVEPOEEVM simplifies deployment for development, test, and production by providing power and data transmission over a single ethernet cable (...)
Features
- Fully compatible with 60-GHz to 64-GHz mmWave sensors carrier card platform (MMWAVEICBOOST)
- Compatible with mmWave evalution modules with LaunchPad connectivity
- Integrated RJ45, transformer, and diode bridge for PoE power stage for cost-effective BOM
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Description
The SimpleLink™ Ethernet MSP432E401Y microcontroller LaunchPad™ Development Kit is an intuitive evaluation platform for SimpleLink™ Arm® Cortex®-M4F-based Ethernet MCUs. The Ethernet LaunchPad development kit highlights the MSP432E401Y MCU with integrated Ethernet MAC and (...)
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- SimpleLink Ethernet MSP432E401Y 32-bit Arm Cortex-M4F MCU
- 80 pin LaunchPad standard leveraging the BoosterPack ecosystem
- On-board XDS-110 debug probe
- Ethernet and USB-OTG
- 2 user buttons and 4 LEDs for user interaction
Description
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- On-Board Segmented LCD Display
- 2 user buttons and 2 LEDs for user interaction
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
- (...)
Features
- Case-specific tool to calculate external resistor value associated with shunt voltage reference
- Input fields for: voltage reference, supply voltage, load current and Iq bound values
- Real-time effects of input values on schematic
- Quick indicators notifying user of valid and invalid outputs
- Error messages (...)
Reference designs
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SC70 (DCK) | 5 | View options |
| SOT-23 (DBZ) | 3 | View options |
| TO-92 (LP) | 3 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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