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Texas Instruments LM4041DIZ-ADJ/LFT1
- Part No.:
- LM4041DIZ-ADJ/LFT1
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-226-3, TO-92-3 (TO-226AA)
- Datasheet:
-
LM4041DIZ-ADJ/LFT1.pdf
- Description:
- IC VREF SHUNT ADJ 1% TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,203
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Product details
Overview
LM4041DIZ-ADJ/LFT1 from Texas Instruments is a precision micropower adjustable shunt voltage reference in TO-92 package, delivering 1.2V nominal output with ±0.5% initial tolerance (Grade C), 100ppm/°C max temperature coefficient, and stable operation from 60μA to 15mA over −40°C to +85°C. It serves as a compact, capacitor-free reference for analog signal conditioning in industrial sensor interfaces.
For engineers reviewing the LM4041DIZ-ADJ/LFT1 datasheet, LM4041DIZ-ADJ/LFT1 pinout, LM4041DIZ-ADJ/LFT1 application, or LM4041DIZ-ADJ/LFT1 equivalent, this page delivers verified specifications, TO-92 terminal mapping, automotive-grade thermal stability data, and two validated alternative parts for design flexibility.
Technical Context
The LM4041DIZ-ADJ/LFT1 implements a bandgap-based shunt reference architecture with curvature-corrected temperature drift compensation, enabling stable reverse breakdown voltage across wide current (60μA–15mA) and temperature (−40°C to +85°C) ranges. Its internal Zener-zap trimming achieves ±0.5% initial accuracy at 25°C without external capacitors.
Unlike fixed-output variants, the ADJ version uses an external resistor divider between cathode and anode to set output voltage from 1.2V up to 10V, with dynamic impedance below 1Ω at 1mA and 35μVRMS noise (10Hz–10kHz). It tolerates capacitive loads and requires no output capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Adjustable 1.2V to 10V via external resistors; 1.2V nominal when unconfigured |
| Initial Tolerance | ±0.5% at 25°C (Grade C), enabling high-accuracy ADC/DAC biasing without calibration |
| Temp Coefficient | 100ppm/°C max (−40°C to +85°C), ensuring ≤±0.0525V drift over full range for 2.5V setpoint |
| Operating Current | 60μA min to 15mA max, supporting ultra-low-power sensor nodes and high-current precision references |
| Dynamic Impedance | 0.9Ω typical at 1mA, minimizing load-induced voltage variation in varying current conditions |
| Output Noise | 35μVRMS (10Hz–10kHz), critical for low-noise instrumentation amplifier references |
| Thermal Hysteresis | 0.08% after −40°C/125°C cycling, preserving calibration integrity in thermally cycled systems |
Pinout & Package
LM4041DIZ-ADJ/LFT1 uses the 3-pin TO-92 package (body size 4.30mm × 4.30mm), with leads designated Anode (pin 3), Cathode (pin 2), and NC (pin 1 - must float or connect to anode per TI layout guidance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Reference ground node | Typically connected to system ground; forms lower leg of voltage divider for ADJ configuration |
| Cathode (Pin 2) | Shunt current sink / output node | Delivers regulated voltage; sinks all excess current not drawn by load or divider network |
| NC (Pin 1) | No-connect terminal | Must remain floating or tied to anode; improves EMI immunity in noisy environments per TI recommendation |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable output range | 1.2V to 10V via two-resistor divider, eliminating need for multiple fixed-voltage BOM variants |
| No output capacitor required | Stable under all capacitive loads, reducing PCB area and bill-of-materials in space-constrained designs |
| Low quiescent current | 60μA minimum operating current enables battery-powered field transmitters with multi-year runtime |
| High ESD robustness | ±2000V HBM rating ensures reliability during automated assembly and handling in industrial environments |
| Automotive qualification | AEC-Q100 Grade 3 (−40°C to +85°C) support for under-hood and chassis-mounted sensing applications |
Applications
| Industrial Sensor Transmitter | Programmable Logic Controller (PLC) Analog Input |
|---|---|
Use Scenario: 4–20mA loop-powered pressure/temperature transmitter with microcontroller-based signal conditioning. IC Role / Device Role / Timing Role: Shunt reference providing stable 2.5V bias for 16-bit SAR ADC and op-amp signal chain. Use Value: ±0.5% initial tolerance and 100ppm/°C TC ensure <0.1% total error over temperature without software calibration. |
Use Scenario: Modular PLC I/O card accepting multiple sensor types (RTD, thermocouple, voltage) with shared reference. IC Role / Device Role / Timing Role: Adjustable reference configured to 4.096V for 12-bit ADC full-scale matching. Use Value: Resistor-divider programmability eliminates inventory of fixed-reference SKUs while maintaining 35μVRMS noise floor. |
| Energy Metering Front-End | Automotive Battery Monitoring Unit |
Use Scenario: Class 0.5 electricity meter using isolated sigma-delta ADC for voltage/current sampling. IC Role / Device Role / Timing Role: Precision shunt reference supplying 1.2V to ADC's internal reference buffer. Use Value: 60μA min current allows operation from auxiliary supply derived from mains, reducing standby power. |
Use Scenario: 12V battery monitoring module measuring cell voltages and pack temperature in EV powertrain. IC Role / Device Role / Timing Role: Reference for 10-bit MCU ADC measuring 0–5V scaled battery cell outputs. Use Value: AEC-Q100 Grade 3 qualification and −40°C to +85°C operation ensure reliability in under-hood thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040CIZ-ADJ | Same TO-92 package and ±0.5% grade, but LM4040 family lacks ADJ pin; requires external resistor network for adjustment | Higher board-level complexity due to need for discrete divider; identical thermal performance and noise | Select when legacy LM4040 footprint compatibility is required and board layout cannot accommodate LM4041's dedicated ADJ topology |
| TLVH431AIDBZR | Adjustable shunt reference with 1.24V nominal, ±1% initial tolerance, 50ppm/°C TC, SOT-23-3 package | Lower accuracy and tighter TC than LM4041DIZ-ADJ/LFT1; better suited for cost-sensitive non-precision control loops | Choose for budget-constrained consumer applications where ±1% tolerance and 50ppm/°C TC meet system requirements |
Compared with LM4041DIZ-ADJ/LFT1, LM4040CIZ-ADJ demands external resistors for adjustment and offers identical accuracy but less integration, while TLVH431AIDBZR trades 0.5% tolerance and 100ppm/°C TC for lower cost and smaller SOT-23 footprint in non-critical applications.
Availability
LM4041DIZ-ADJ/LFT1 is available at Aetrix Electronics and suitable for industrial sensor transmitters, PLC analog input modules, energy metering front-ends, and automotive battery monitoring units requiring stable component supply across extended temperature ranges.
Supply support for LM4041DIZ-ADJ/LFT1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision reference design and automotive-grade component validation.
The LM4041 product line delivers micropower shunt references optimized for space-constrained, low-noise, and thermally demanding applications including industrial automation, energy infrastructure, and automotive subsystems.
FAQ
What is the nominal output voltage of LM4041DIZ-ADJ/LFT1?
The LM4041DIZ-ADJ/LFT1 has a nominal output voltage of 1.2V when used in its default configuration without external resistors. Its adjustable architecture supports output voltages from 1.2V to 10V via an external resistor divider connected between cathode and anode terminals, making LM4041DIZ-ADJ/LFT1 suitable for diverse reference needs across precision analog systems.
Does LM4041DIZ-ADJ/LFT1 require an output capacitor for stability?
No, LM4041DIZ-ADJ/LFT1 does not require an output capacitor for stability. Its internal design ensures unconditional stability with any capacitive load, eliminating the need for external compensation components. This feature reduces BOM count and PCB area, and is explicitly confirmed in the official Texas Instruments datasheet for LM4041DIZ-ADJ/LFT1.
What is the temperature range specification for LM4041DIZ-ADJ/LFT1?
LM4041DIZ-ADJ/LFT1 is specified for the industrial temperature range of −40°C to +85°C (Grade I). It meets AEC-Q100 Grade 3 requirements, confirming suitability for automotive under-hood and chassis applications where ambient temperatures fall within this span. The device maintains ±0.5% initial tolerance and 100ppm/°C max temperature coefficient across this full range.
How is the LM4041DIZ-ADJ/LFT1 pinout configured in the TO-92 package?
In the TO-92 package, LM4041DIZ-ADJ/LFT1 has three pins: Pin 1 (NC - must float or connect to anode), Pin 2 (Cathode - shunt current sink/output node), and Pin 3 (Anode - reference ground). This pinout matches TI's LP package marking and is validated in the LM4041 datasheet Figure 4-2 and Table 4-1, ensuring correct orientation during manual or automated placement of LM4041DIZ-ADJ/LFT1.
What is the minimum operating current for LM4041DIZ-ADJ/LFT1?
The minimum operating current for LM4041DIZ-ADJ/LFT1 is 60μA at 25°C, rising to 65μA across the full −40°C to +85°C temperature range. This low quiescent requirement enables use in battery-powered field instruments and energy-harvesting systems where supply current must be minimized without sacrificing reference accuracy-confirmed in Section 5.3 of the LM4041DIZ-ADJ/LFT1 datasheet.
LM4041DIZ-ADJ/LFT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Adjustable
- Voltage - Output (Min/Fixed):
- 1.233V
- Voltage - Output (Max):
- 10 V
- Current - Output:
- 12 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 150ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 20µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 70 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-3
LM4041DIZ-ADJ/LFT1 FAQ
1.How can I place an order for LM4041DIZ-ADJ/LFT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4041DIZ-ADJ/LFT1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM4041DIZ-ADJ/LFT1 reliable?
The price and inventory of LM4041DIZ-ADJ/LFT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4041DIZ-ADJ/LFT1 is usually 5 days.
3.What payment methods are accepted for LM4041DIZ-ADJ/LFT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4041DIZ-ADJ/LFT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4041DIZ-ADJ/LFT1?
LM4041DIZ-ADJ/LFT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4041DIZ-ADJ/LFT1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM4041DIZ-ADJ/LFT1?
For technical support, including LM4041DIZ-ADJ/LFT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4041DIZ-ADJ/LFT1 requirements.
6.How does Aetrix verify that LM4041DIZ-ADJ/LFT1 is sourced from the original manufacturer or authorized distributors?
All LM4041DIZ-ADJ/LFT1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM4041DIZ-ADJ/LFT1 meets industry standards.
7.What is the process for return or replacement of LM4041DIZ-ADJ/LFT1?
All LM4041DIZ-ADJ/LFT1 units undergo pre-shipment inspection (PSI). If there is an issue with LM4041DIZ-ADJ/LFT1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM4041DIZ-ADJ/LFT1 part is unused and in its original packaging.
Return procedure for LM4041DIZ-ADJ/LFT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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