Home Power management Voltage references Shunt voltage references
Home
Power management
Voltage references
Shunt voltage references

LM4041B

ACTIVE

Adjustable, precision micropower shunt voltage reference with 0.2% accuracy

Order now
Data sheet

LM4041B

ACTIVE
Data sheet Order now

Product details

VO (V) 1.225 Initial accuracy (max) (%) 0.2 VO adj (min) (V) 1.225 VO adj (max) (V) 10 Iz for regulation (min) (µA) 45 Reference voltage (V) adjustable Rating Catalog Temp coeff (max) (ppm/°C) 100 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 25
VO (V) 1.225 Initial accuracy (max) (%) 0.2 VO adj (min) (V) 1.225 VO adj (max) (V) 10 Iz for regulation (min) (µA) 45 Reference voltage (V) adjustable Rating Catalog Temp coeff (max) (ppm/°C) 100 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 25
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37 SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • 1.225-V Fixed and Adjustable Outputs (1.225 V to 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 . . . 20 µVRMS (Typ)
  • Wide Operating Current Range . . . 45 µA (Typ) to 12 mA
  • Stable With All Capacitive Loads; No Output Capacitor Required
  • Available in
    • Industrial Temperature: –40°C to 85°C
    • Extended Temperature: –40°C to 125°C
  • 1.225-V Fixed and Adjustable Outputs (1.225 V to 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 . . . 20 µVRMS (Typ)
  • Wide Operating Current Range . . . 45 µA (Typ) to 12 mA
  • Stable With All Capacitive Loads; No Output Capacitor Required
  • Available in
    • Industrial Temperature: –40°C to 85°C
    • Extended Temperature: –40°C to 125°C

The LM4041 series of shunt voltage references are versatile, easy-to-use references suitable for a wide array of applications. They require no external capacitors for operation and are stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and a low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4041 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. The LM4041 is available in a fixed (1.225 V nominal) or an adjustable version (which requires an external resistor divider to set the output to a value between 1.225 V and 10 V).

Packaged in space-saving SC-70 and SOT-23-3 and requiring a minimum current of 45 µA (typ), the LM4041 also is ideal for portable applications. The TO-92 package also is available for through-hole packaging needs. The LM4041xI is characterized for operation over an ambient temperature range of –40°C to 85°C. The LM4041xQ is characterized for operation over an ambient temperature range of –40°C to 125°C.

The LM4041 series of shunt voltage references are versatile, easy-to-use references suitable for a wide array of applications. They require no external capacitors for operation and are stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and a low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4041 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. The LM4041 is available in a fixed (1.225 V nominal) or an adjustable version (which requires an external resistor divider to set the output to a value between 1.225 V and 10 V).

Packaged in space-saving SC-70 and SOT-23-3 and requiring a minimum current of 45 µA (typ), the LM4041 also is ideal for portable applications. The TO-92 package also is available for through-hole packaging needs. The LM4041xI is characterized for operation over an ambient temperature range of –40°C to 85°C. The LM4041xQ is characterized for operation over an ambient temperature range of –40°C to 125°C.
open-in-new Find other Shunt voltage references
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet LM4041 Precision Micropower Shunt Voltage Reference. datasheet (Rev. F) 21 Sep 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
More literature SLL Precision Reference Product Clip 23 Feb 2006

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Request
Reference designs

TIDA-00661 — High Resolution, Fast Startup Analog Front End for Air Circuit Breaker Reference Design

The TIDA-00661 reference design features signal processing front-end subsystem for electronic trip units (ETU) used in air circuit breakers (ACB) or molded case circuit breakers (MCCB). This subsystem consists of Delta-Sigma ADC with 24-Bit resolution and fast startup (< 3ms), ±2.5V (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00498 — Signal Processing Subsystem and Current Input Based Self Power for Breaker Applications (ACB/MCCB)

THe TIDA-00498 reference design features signal processing front-end and self-power block for electronic trip unit (ETU) used in circuit breakers.  A FRAM based micro-controller is used for processing current inputs from signal conditioning amplifiers for 3-phase, neutral and ground current. (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00809 — EMC Compliant, Group Isolated, 2-Channel Binary Input Module for Wide AC/DC Input Reference Design

This reference design showcases a cost-optimized architecture that improves resolution of a binary-input module. A microcontroller unit (MCU) is shared between two-input channels (group isolation) to minimize the cost per channel. Wide-input range is covered using an amplifier with gain and (...)
Design guide: PDF
Schematic: PDF
Reference designs

PMP11474 — 100W USB Type C PD Power Monitoring Dongle Reference Design

The PMP11474 reference design measures the voltage and current present on a USB type C cable.  Current is monitored across a 5 mΩ sense resistor by an INA213 current amplifier.  Voltage is monitored by an LM321 amplifier.  These measurements are processed and displayed on a small (...)
User guide: PDF
Schematic: PDF
Reference designs

TIDA-00222 — Measurement Module for Branch Circuit Power Monitor Reference Design

This reference design targets measurement accuracy across the rated current range while at the same time being a cost efficient solution. This is achieved by using a highly integrated SoC device which has up to 7 channels of the 24-bit Delta-Sigma ADCs available for current measurement. For voltage (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00130 — Zero drift PGA based Analog Front End Design for Circuit Breakers (ACB/MCCB-ETU)

This reference design is intended for use in molded case circuit breakers (MCCB) electronic trip units.  The programmable gain amplifier based design acts as the current monitoring for over-current earth fault relays. Utilizing a zero drift programmable amplifier, this design provides a (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00191 — Analog Front End for Motor Electronic Overload Relays with Enhanced Current Range

This reference design is the analog front end (AFE) for an electronic overload relay, used for monitoring and protecting motors from overcurrent or undercurrent events. It is an ideal tool for developers creating overload relays for sensitive AC motors in industrial applications. This programmable (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
SOT-23 (DBZ) 3 View options
SOT-SC70 (DCK) 5 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

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. ​​​​​​​​​​​​​​

Videos