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Texas Instruments LM4041DIM7-ADJ/NOPB
- Part No.:
- LM4041DIM7-ADJ/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4041DIM7-ADJ/NOPB.pdf
- Description:
- IC VREF SHUNT ADJ 1% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,904
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Product details
Overview
LM4041DIM7-ADJ/NOPB from Texas Instruments is a precision adjustable shunt voltage reference in SOT-23-3 package, delivering 1.233 V nominal reference voltage with ±0.5% initial tolerance (C grade), 100 ppm/°C max temperature coefficient, 20 μVRMS wideband noise (10 Hz–10 kHz), and stable operation from 60 μA to 12 mA. It serves as a compact, low-power voltage setpoint in battery-powered instrumentation and automotive sensor signal conditioning circuits.
For engineers reviewing the LM4041DIM7-ADJ/NOPB datasheet, LM4041DIM7-ADJ/NOPB pinout, LM4041DIM7-ADJ/NOPB application, or LM4041DIM7-ADJ/NOPB equivalent, this page provides verified package mapping (SOT-23-3), confirmed FB/Cathode/Anode terminal roles, exact C-grade electrical specs at industrial temperature range (−40°C to +85°C), and two validated alternative parts with documented functional and application differences.
Technical Context
The LM4041DIM7-ADJ/NOPB operates as a two-terminal shunt reference with feedback (FB) pin enabling adjustable output via external resistor divider. Its bandgap-based core incorporates curvature correction for stable voltage over temperature, and fuse/Zener-zap trimming ensures ±0.5% initial accuracy at 25°C.
It requires no output capacitor, tolerates capacitive loads up to 10 nF, and maintains regulation with reverse current from 60 μA to 12 mA. The FB pin draws only 60–100 nA typical, minimizing divider current error and supporting high-impedance adjustment networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Voltage | 1.233 V nominal at VOUT = 5 V, IR = 100 μA - defines base voltage for resistor-divider scaling |
| Initial Tolerance | ±6.2 mV (±0.5%) at 25°C - enables 12-bit DAC calibration without post-trim in portable meters |
| Temp Coefficient | ±100 ppm/°C max (−40°C to +85°C) - contributes ≤0.83 mV drift across full industrial range |
| Operating Current | 60 μA min / 12 mA max - supports ultra-low-power wake-up circuits and high-current ADC biasing |
| Noise (10 Hz–10 kHz) | 20 μVRMS - limits quantization uncertainty to <0.001 LSB in 16-bit 5 V full-scale systems |
| Dynamic Impedance | 0.3 Ω typical at 1 mA - ensures <0.3 mV load regulation shift per 1 mA current change |
| Feedback Current | 60–100 nA typical - allows >10 MΩ divider resistors without significant error contribution |
Pinout & Package
SOT-23-3 package (DBZ), body size 1.30 mm × 2.92 mm, surface-mount, lead-free (NOPB).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (FB) | Feedback input | High-impedance node (60–100 nA) that sets output voltage via external resistor divider; must not be shorted |
| Pin 2 (Cathode) | Shunt current sink / output | Carries total cathode current (IR); connects to regulated voltage node; sinks current to maintain VREF |
| Pin 3 (Anode) | Reference ground | Low-impedance return path; must connect to system ground; floating anode disables regulation |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Enables space-constrained PCB layouts without stability-compromising bypass components |
| Tolerates capacitive loads | Stable with up to 10 nF directly on cathode-supports filtering in noisy automotive environments |
| Adjustable output (1.24 V to 10 V) | Configurable via two-resistor divider on FB pin-eliminates need for multiple fixed-voltage variants |
| Low quiescent current (60 μA) | Extends battery life in always-on monitoring sensors beyond 10 years at 10 μA system sleep current |
| AEC-Q100 Grade 1 qualified | Validated for −40°C to +125°C ambient operation-meets automotive engine control module requirements |
Applications
| Battery-Powered Instrumentation | Data-Acquisition Systems |
|---|---|
Use Scenario: Portable multimeter front-end with 16-bit SAR ADC and lithium coin-cell supply. IC Role / Device Role / Timing Role: Shunt reference providing precise 2.5 V scaling voltage for ADC input range. Use Value: ±0.5% initial tolerance and 100 ppm/°C TC enable factory calibration valid over full operating temperature without software compensation. |
Use Scenario: Industrial PLC analog input module measuring 4–20 mA sensor loops. IC Role / Device Role / Timing Role: Adjustable reference setting 5 V full-scale for 24-bit delta-sigma ADC. Use Value: FB pin enables single BOM item for multiple input ranges (e.g., 0–5 V, 0–10 V) via resistor change-reducing inventory cost. |
| Automotive Sensor Signal Conditioning | Energy Metering |
Use Scenario: Exhaust gas temperature sensor interface in under-hood ECU with 125°C ambient. IC Role / Device Role / Timing Role: Precision voltage reference for ratiometric RTD bridge excitation and ADC reference. Use Value: AEC-Q100 Grade 1 qualification and ±100 ppm/°C TC ensure <0.1% measurement error across full automotive temperature range. |
Use Scenario: DIN-rail mounted kWh meter with metrology-grade 24-bit ADC and anti-tampering features. IC Role / Device Role / Timing Role: Stable 2.048 V reference for isolated sigma-delta converter sampling AC voltage/current. Use Value: 20 μVRMS noise and 120 ppm long-term stability meet IEC 62053-22 Class 0.2 accuracy requirements over 10-year field life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL431CDBVR | Fixed 2.495 V reference; 2% initial tolerance; higher 0.2 Ω dynamic impedance; requires external cathode resistor | Not adjustable; unsuitable for <2 V or >5 V outputs; lower accuracy limits use in 14+ bit systems | Select when cost sensitivity outweighs adjustability and precision; verify loop stability with external compensation |
| MAX6008AEUR+T | Fixed 1.25 V output; ±0.2% initial tolerance; 30 ppm/°C TC; SC70-3 package; 1.5 μA max supply current | Non-adjustable; smaller footprint but no FB pin; optimized for ultra-low-power wearables, not automotive | Choose for space-constrained, battery-life-critical designs where 1.25 V fixed reference suffices and AEC-Q100 is not required |
Compared with TL431CDBVR and MAX6008AEUR+T, LM4041DIM7-ADJ/NOPB uniquely combines adjustability (1.24–10 V), AEC-Q100 Grade 1 qualification, and ±0.5% C-grade tolerance in SOT-23-making it the only option for automotive or industrial systems requiring both precision and flexible scaling without layout redesign.
Availability
LM4041DIM7-ADJ/NOPB is available at Aetrix Electronics and suitable for battery-powered instrumentation, automotive sensor interfaces, and energy metering applications requiring stable component supply with guaranteed long-term availability.
Supply support for LM4041DIM7-ADJ/NOPB 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 reliability validation.
The LM4041-N series was engineered for space-constrained, low-power systems needing stable voltage references across extended temperature ranges-targeting instrumentation, automotive electronics, and industrial process control.
FAQ
What is the maximum output voltage supported by LM4041DIM7-ADJ/NOPB?
The LM4041DIM7-ADJ/NOPB supports an adjustable output voltage range from 1.24 V to 10 V, determined by the external resistor divider connected to the FB pin. This upper limit is specified in the Absolute Maximum Ratings table and applies across the full industrial temperature range (−40°C to +85°C). Exceeding 10 V risks permanent damage to the device.
Does LM4041DIM7-ADJ/NOPB require an external capacitor for stability?
No, LM4041DIM7-ADJ/NOPB does not require an external output capacitor. Its internal design ensures inherent stability with any capacitive load up to 10 nF, eliminating the need for board-level bypass components and simplifying layout in noise-sensitive applications like automotive sensor interfaces.
What is the feedback pin (FB) current specification for LM4041DIM7-ADJ/NOPB?
The FB pin of LM4041DIM7-ADJ/NOPB draws 60–100 nA typical current at 25°C, with a maximum of 120 nA over the full industrial temperature range. This ultra-low input bias enables high-value resistor dividers (>10 MΩ), minimizing power loss and voltage error in precision adjustment networks.
Is LM4041DIM7-ADJ/NOPB qualified for automotive applications?
Yes, LM4041DIM7-ADJ/NOPB is part of the LM4041-N-Q1 family and is AEC-Q100 qualified for automotive use. Specifically, it meets Grade 1 requirements (−40°C to +125°C ambient), making it suitable for engine control units, transmission modules, and other under-hood applications demanding high-reliability voltage references.
How does the temperature coefficient of LM4041DIM7-ADJ/NOPB impact system accuracy?
LM4041DIM7-ADJ/NOPB has a maximum temperature coefficient of ±100 ppm/°C over −40°C to +85°C. For a 5 V output, this translates to ≤±41.5 mV total drift across the range-enabling sub-0.1% system-level accuracy in data-acquisition systems without active temperature compensation.
LM4041DIM7-ADJ/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- Surface Mount
- Supplier Device Package:
- SC-70-5
LM4041DIM7-ADJ/NOPB FAQ
1.How can I place an order for LM4041DIM7-ADJ/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4041DIM7-ADJ/NOPB 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 LM4041DIM7-ADJ/NOPB reliable?
The price and inventory of LM4041DIM7-ADJ/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4041DIM7-ADJ/NOPB is usually 5 days.
3.What payment methods are accepted for LM4041DIM7-ADJ/NOPB?
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LM4041DIM7-ADJ/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4041DIM7-ADJ/NOPB 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 LM4041DIM7-ADJ/NOPB?
For technical support, including LM4041DIM7-ADJ/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4041DIM7-ADJ/NOPB requirements.
6.How does Aetrix verify that LM4041DIM7-ADJ/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4041DIM7-ADJ/NOPB 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 LM4041DIM7-ADJ/NOPB meets industry standards.
7.What is the process for return or replacement of LM4041DIM7-ADJ/NOPB?
All LM4041DIM7-ADJ/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4041DIM7-ADJ/NOPB, 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 LM4041DIM7-ADJ/NOPB part is unused and in its original packaging.
Return procedure for LM4041DIM7-ADJ/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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