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Texas Instruments LM4041CIM7X-ADJ/NOPB
- Part No.:
- LM4041CIM7X-ADJ/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4041CIM7X-ADJ/NOPB.pdf
- Description:
- IC VREF SHUNT ADJ 0.5% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:13,398
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Product details
Overview
LM4041CIM7X-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 at 25°C, 100 ppm/°C max temperature coefficient, and 20 μVRMS wideband noise (10 Hz–10 kHz). It operates from 60 μA to 12 mA and supports output voltages from 1.24 V to 10 V - ideal for high-accuracy ADC biasing in portable instrumentation.
For engineers reviewing the LM4041CIM7X-ADJ/NOPB datasheet, LM4041CIM7X-ADJ/NOPB pinout, LM4041CIM7X-ADJ/NOPB application, or LM4041CIM7X-ADJ/NOPB equivalent, key selection criteria include adjustable output range, low quiescent current stability, thermal hysteresis (0.08%), reverse dynamic impedance (0.3 Ω), and AEC-Q100 Grade 1 qualification for automotive ambient operation up to +125°C.
Technical Context
The LM4041CIM7X-ADJ/NOPB uses a bandgap-based shunt architecture with curvature-corrected temperature drift compensation and Zener-zap trimming at wafer sort to achieve ±0.5% initial accuracy. Its feedback (FB) pin enables resistor-divider programming of output voltage while maintaining tight regulation across load and temperature.
It requires no external capacitor for stability and tolerates arbitrary capacitive loads - a critical advantage over series references in space-constrained, battery-powered systems where layout simplicity and EMI resilience are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Voltage | 1.233 V nominal at 100 μA, programmable to 10 V via external resistors |
| Initial Tolerance | ±0.5% at 25°C (C-grade), enabling <12 mV error in 5 V systems without calibration |
| Temp Coefficient | ≤100 ppm/°C over −40°C to +125°C, limiting drift to ±12.5 mV across full range |
| Operating Current | 60 μA min to 12 mA max - supports ultra-low-power sensor nodes and high-current DAC references |
| Noise (10 Hz–10 kHz) | 20 μVRMS - suitable for 16-bit+ data acquisition without added filtering |
| Dynamic Impedance | 0.3 Ω at 1 mA - ensures stable regulation under fast load transients |
| Thermal Hysteresis | 0.08% - guarantees repeatable voltage after thermal cycling in automotive ECUs |
Pinout & Package
SOT-23-3 package (1.30 mm × 2.92 mm), surface-mount, lead-free (NOPB), rated for −40°C to +125°C extended temperature operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Ground reference node | Must be connected to system ground; serves as return path for shunt current |
| Cathode (Pin 2) | Output voltage node | Delivers regulated voltage; sinks current from external supply through load/resistor divider |
| FB (Pin 1) | Feedback input | High-impedance (≤100 nA) node that sets output voltage via external resistor divider (VOUT = VREF × (1 + R1/R2)) |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable output range | 1.24 V to 10 V - enables single BOM for multiple voltage rails in modular designs |
| No external capacitor required | Guaranteed stability with any capacitive load - eliminates board area and cost of output cap |
| AEC-Q100 Grade 1 qualified | Validated for −40°C to +125°C ambient - meets automotive powertrain and ADAS requirements |
| Low feedback current | ≤100 nA at 25°C - minimizes divider current error and improves accuracy in high-R networks |
| Reverse breakdown protection | Withstands up to 15 V output - prevents damage during overvoltage fault conditions |
Applications
| Portable Data Loggers | Automotive Battery Monitoring Units |
|---|---|
Use Scenario: Continuous 16-bit ADC sampling in handheld environmental sensors powered by coin cells. IC Role / Device Role / Timing Role: Shunt reference providing stable 2.5 V bias for SAR ADC, replacing larger, higher-current series references. Use Value: Enables 6-month battery life at 100 SPS due to 60 μA minimum operating current and zero capacitor requirement. | Use Scenario: High-side voltage monitoring of 12 V lead-acid and 48 V Li-ion traction batteries in EV gate drivers. IC Role / Device Role / Timing Role: Precision shunt reference feeding isolated sigma-delta modulator inputs for cell-level voltage sensing. Use Value: Delivers ±0.5% accuracy over −40°C to +125°C ambient, meeting ASIL-B diagnostic coverage requirements. |
| Industrial Flow Meters | Medical Infusion Pump Controllers |
Use Scenario: Analog front-end for ultrasonic time-of-flight measurement in Coriolis flow transmitters. IC Role / Device Role / Timing Role: Low-noise (20 μVRMS) reference for PGA and 24-bit delta-sigma ADC. Use Value: Reduces RMS noise floor by 4× vs. standard bandgap references, improving resolution to ±0.05% full-scale. | Use Scenario: Closed-loop pressure control loop with piezoresistive sensor and microcontroller-based PID. IC Role / Device Role / Timing Role: Adjustable reference (set to 4.096 V) for 12-bit DAC output scaling and sensor excitation. Use Value: Eliminates need for external trim pot via ±0.5% initial tolerance, reducing assembly steps and field calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL431CDBZR | Fixed 2.495 V output; higher 1 mA min current; 22 Ω typical ZOUT; no AEC-Q100 qualification | Not suitable for sub-2.4 V or >5 V adjustable outputs; limited to industrial temp range (−40°C to +85°C) | Select when fixed 2.5 V and cost sensitivity outweigh need for adjustability, low current, or automotive qualification |
| MAX6008AEUR+T | Fixed 1.25 V output; 35 ppm/°C tempco; 1.5 μA max supply current; SC70-3 package | Cannot be adjusted; lower noise (12 μVRMS) but narrower output range; not qualified for automotive use | Prefer for ultra-low-power (<2 μA) fixed-voltage biasing in wearables, where size and current dominate over adjustability |
Compared with TL431CDBZR and MAX6008AEUR+T, the LM4041CIM7X-ADJ/NOPB uniquely combines adjustable output (1.24–10 V), 60 μA minimum current, AEC-Q100 Grade 1 rating, and 20 μVRMS noise - making it the only option qualified for high-accuracy, thermally demanding, programmable-reference applications in automotive and industrial systems.
Availability
LM4041CIM7X-ADJ/NOPB is available at Aetrix Electronics and suitable for battery-powered equipment, precision data-acquisition systems, and automotive electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM4041CIM7X-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 voltage references and automotive-qualified ICs.
The LM4041-N product line delivers micro-power, high-accuracy shunt references for space-constrained, thermally aggressive applications - designed specifically for battery-operated instrumentation, automotive sensor interfaces, and industrial process control where stability, low drift, and qualification rigor are mandatory.
FAQ
What is the maximum output voltage supported by the LM4041CIM7X-ADJ/NOPB?
The LM4041CIM7X-ADJ/NOPB supports an output voltage range of 1.24 V to 10 V when configured with an external resistor divider on the FB pin. This upper limit is specified in the Absolute Maximum Ratings table and validated across the full −40°C to +125°C operating range. Exceeding 10 V risks violating the 15 V absolute maximum cathode-to-anode voltage rating.
Does the LM4041CIM7X-ADJ/NOPB require an external output capacitor?
No, the LM4041CIM7X-ADJ/NOPB does not require an external output capacitor. Its internal design ensures unconditional stability with any capacitive load, including direct connection to ADC input capacitors or long PCB traces. This eliminates board space, BOM cost, and potential phase-margin issues associated with capacitor selection.
What is the feedback pin (FB) input current specification for the LM4041CIM7X-ADJ/NOPB?
The FB pin input current for the LM4041CIM7X-ADJ/NOPB is ≤100 nA at 25°C and ≤120 nA over −40°C to +125°C. This ultra-low current minimizes resistor-divider loading error - for example, using 100 kΩ/100 kΩ dividers introduces only 0.01% gain error - enabling high-accuracy programmable outputs without active buffering.
Is the LM4041CIM7X-ADJ/NOPB qualified for automotive applications?
Yes, the LM4041CIM7X-ADJ/NOPB is AEC-Q100 Grade 1 qualified, certified for operation from −40°C to +125°C ambient temperature. It meets all stress test requirements including HTOL, TC, UHAST, and ESD (HBM ±2 kV), making it suitable for automotive powertrain, body electronics, and ADAS subsystems where reliability under thermal and electrical stress is critical.
How does the LM4041CIM7X-ADJ/NOPB achieve its low 100 ppm/°C temperature coefficient?
The LM4041CIM7X-ADJ/NOPB achieves its ≤100 ppm/°C temperature coefficient through on-die curvature correction of the bandgap reference core and post-fabrication Zener-zap trimming during wafer sort. This dual-stage compensation actively counteracts second-order thermal effects, ensuring monotonic, predictable drift across the full −40°C to +125°C range without external calibration.
LM4041CIM7X-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:
- ±0.5%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 20µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 65 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
LM4041CIM7X-ADJ/NOPB FAQ
1.How can I place an order for LM4041CIM7X-ADJ/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4041CIM7X-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 LM4041CIM7X-ADJ/NOPB reliable?
The price and inventory of LM4041CIM7X-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 LM4041CIM7X-ADJ/NOPB is usually 5 days.
3.What payment methods are accepted for LM4041CIM7X-ADJ/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4041CIM7X-ADJ/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4041CIM7X-ADJ/NOPB?
LM4041CIM7X-ADJ/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4041CIM7X-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 LM4041CIM7X-ADJ/NOPB?
For technical support, including LM4041CIM7X-ADJ/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4041CIM7X-ADJ/NOPB requirements.
6.How does Aetrix verify that LM4041CIM7X-ADJ/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4041CIM7X-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 LM4041CIM7X-ADJ/NOPB meets industry standards.
7.What is the process for return or replacement of LM4041CIM7X-ADJ/NOPB?
All LM4041CIM7X-ADJ/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4041CIM7X-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 LM4041CIM7X-ADJ/NOPB part is unused and in its original packaging.
Return procedure for LM4041CIM7X-ADJ/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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