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Texas Instruments LM4041CIM7X-1.2/NOPB
- Part No.:
- LM4041CIM7X-1.2/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4041CIM7X-1.2/NOPB.pdf
- Description:
- IC VREF SHUNT 0.5% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,788
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Product details
Overview
LM4041CIM7X-1.2/NOPB from Texas Instruments is a precision 1.225 V shunt voltage reference in SC70-5 package, rated for extended temperature operation (−40°C to +125°C), with ±0.5% initial tolerance at 25°C, 100 ppm/°C max tempco, and 20 μVRMS noise (10 Hz–10 kHz). It serves as a stable reference in high-accuracy ADCs, battery monitors, and automotive sensor signal conditioning circuits.
For engineers reviewing the LM4041CIM7X-1.2/NOPB datasheet, LM4041CIM7X-1.2/NOPB pinout, LM4041CIM7X-1.2/NOPB application, or LM4041CIM7X-1.2/NOPB equivalent, key selection criteria include its fixed 1.225 V output, SC70-5 footprint compatibility, extended-temp Grade C qualification, low 60 μA minimum operating current, and no-output-capacitor-required stability with capacitive loads.
Technical Context
The LM4041CIM7X-1.2/NOPB implements a bandgap-based shunt reference architecture with curvature-corrected temperature drift compensation and Zener-zap wafer-level trimming. Its reverse breakdown voltage is factory-set to 1.225 V with ±0.5% accuracy (C grade) at 25°C and maintains ≤100 ppm/°C tempco over −40°C to +125°C.
It operates across 60 μA–12 mA cathode current, exhibits 1.5 Ω typical dynamic impedance at 1 mA, tolerates any capacitive load without oscillation, and requires no external stabilization capacitor-enabling compact, low-BOM-count designs in space-constrained applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.225 V - enables direct replacement of 1.2 V references in precision analog front-ends |
| Initial Tolerance | ±0.5% at 25°C - supports 12-bit+ system accuracy without calibration |
| Tempco | ≤100 ppm/°C - ensures <±1.2 mV drift over full −40°C to +125°C range |
| Min Operating Current | 60 μA - allows ultra-low-power operation in battery-backed monitoring circuits |
| Noise (10 Hz–10 kHz) | 20 μVRMS - minimizes quantization error in 16-bit+ SAR and delta-sigma ADCs |
| Dynamic Impedance | 1.5 Ω at 1 mA - provides stable regulation under fast load transients |
| Long-Term Stability | 120 ppm (1000 hrs) - ensures reference integrity in 10-year industrial deployments |
Pinout & Package
LM4041CIM7X-1.2/NOPB uses the 5-pin SC70 (DCK) package (1.25 mm × 2.00 mm), with pin 1 = FB (feedback), pin 2 = Anode (ground), pin 3 = Cathode (output), pins 4–5 = NC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FB) | Feedback input | Enables adjustable-mode configuration; must float or tie to anode for fixed 1.225 V operation |
| 2 (Anode) | Reference ground | Common return node; connects to system GND; low-impedance path required for stability |
| 3 (Cathode) | Shunt output | Delivers regulated 1.225 V; sinks current from external bias resistor into load |
| 4, 5 (NC) | No connect | Unused terminals; must remain unconnected per TI design guidelines |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Eliminates external ceramic capacitor, reducing BOM count and PCB area in portable systems |
| Tolerates capacitive loads | Stable with >100 nF load capacitance-ideal for driving ADC reference inputs directly |
| AEC-Q100 Grade 1 qualified | Validated for automotive ambient range (−40°C to +125°C), supporting engine control and ADAS modules |
| Low 20 μVRMS noise | Preserves ENOB in precision data acquisition systems without requiring post-filtering |
| 60 μA min operating current | Enables microamp-level system sleep modes while maintaining reference validity |
Applications
| Battery-Powered Equipment | Data-Acquisition Systems |
|---|---|
Use Scenario: Low-power gas sensor node with coin-cell supply and 16-bit ADC. IC Role / Device Role / Timing Role: Provides stable 1.225 V reference for ADC conversion and sensor excitation. Use Value: Enables 14-bit effective resolution over full temperature range with no recalibration. | Use Scenario: Industrial PLC analog input module measuring 4–20 mA loop signals. IC Role / Device Role / Timing Role: Serves as precision shunt reference for current-to-voltage conversion and ADC reference. Use Value: Maintains <0.1% total unadjusted error across −40°C to +85°C ambient. |
| Automotive Electronics | Energy Management/Metering |
Use Scenario: In-vehicle tire pressure monitoring system (TPMS) with MEMS pressure sensor. IC Role / Device Role / Timing Role: Supplies accurate reference for ratiometric sensor signal conditioning and MCU ADC. Use Value: Meets AEC-Q100 Grade 1 requirements and contributes to <±1 kPa pressure measurement accuracy. | Use Scenario: Smart electricity meter with polyphase energy measurement IC. IC Role / Device Role / Timing Role: Delivers stable reference for metrology ADC and anti-tampering voltage monitor. Use Value: Supports Class 0.5 accuracy compliance with <50 ppm/year long-term drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLVH431ACDBVR | Adjustable 1.24–18 V output; 0.5% initial tolerance; SOT-23-5; 100 ppm/°C tempco | Requires external resistors for 1.225 V setting; higher minimum current (80 μA) | Choose when adjustable output or higher voltage capability is needed; verify layout for thermal stability |
| MAX6008AEUR+T | Fixed 1.25 V output; 0.2% initial tolerance; SOT-23-3; 75 ppm/°C tempco; 30 μA min current | Higher accuracy but narrower temp range (−40°C to +85°C); 3-pin vs. 5-pin SC70 | Choose for tighter tolerance in industrial-grade non-automotive applications where footprint size is critical |
Compared with TLVH431ACDBVR and MAX6008AEUR+T, LM4041CIM7X-1.2/NOPB uniquely combines AEC-Q100 Grade 1 qualification, SC70-5 packaging, and 1.225 V fixed output-making it optimal for automotive and space-constrained extended-temperature designs where pin-for-pin adjustability or ultra-low quiescent current are secondary to qualification and exact voltage match.
Availability
LM4041CIM7X-1.2/NOPB is available at Aetrix Electronics and suitable for battery-powered equipment, automotive electronics, and energy metering applications requiring stable component supply, long-lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for LM4041CIM7X-1.2/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 delivering analog and embedded processing solutions, with deep expertise in precision analog, power management, and automotive electronics.
The LM4041-N series was designed specifically for high-accuracy, low-power shunt reference applications in automotive, industrial, and portable instrumentation-emphasizing extended temperature operation, minimal external components, and robust ESD performance.
FAQ
What is the output voltage tolerance of LM4041CIM7X-1.2/NOPB over temperature?
The LM4041CIM7X-1.2/NOPB has ±0.5% initial tolerance at 25°C and maintains ≤±1.15% total tolerance over −40°C to +125°C (Grade C, extended temperature range), calculated as ±0.5% ± (100 ppm/°C × 100°C × 1.225 V) = ±1.15%. This is verified per TI's Electrical Characteristics Table 5.7.
Does LM4041CIM7X-1.2/NOPB require an external capacitor for stability?
No, LM4041CIM7X-1.2/NOPB does not require an external output capacitor. Its internal design ensures unconditional stability with any capacitive load, including direct connection to ADC reference inputs up to 100 nF-reducing bill-of-materials and board space versus older shunt references.
Which package type is used by LM4041CIM7X-1.2/NOPB?
LM4041CIM7X-1.2/NOPB uses the SC70-5 (DCK) package: a 5-pin surface-mount outline measuring 1.25 mm × 2.00 mm. Pin 1 is FB, pin 2 is Anode, pin 3 is Cathode, and pins 4–5 are no-connect-confirmed in TI's Pin Configuration section (Figures 4-2 and 4-5).
Is LM4041CIM7X-1.2/NOPB qualified for automotive applications?
Yes, LM4041CIM7X-1.2/NOPB is AEC-Q100 Grade 1 qualified for automotive use, supporting ambient temperatures from −40°C to +125°C. This qualification is explicitly stated in TI's Features section and applies to the LM4041-N-Q1 family, including this SC70-5 C-grade variant.
What is the minimum operating current for LM4041CIM7X-1.2/NOPB?
The minimum operating current for LM4041CIM7X-1.2/NOPB is 60 μA at 25°C and increases to 68 μA across −40°C to +125°C (per Table 5.7). Operation below this current risks loss of regulation and increased output voltage error.
LM4041CIM7X-1.2/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:
- Fixed
- Voltage - Output (Min/Fixed):
- 1.225V
- Voltage - Output (Max):
- -
- 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-1.2/NOPB FAQ
1.How can I place an order for LM4041CIM7X-1.2/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4041CIM7X-1.2/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-1.2/NOPB reliable?
The price and inventory of LM4041CIM7X-1.2/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-1.2/NOPB is usually 5 days.
3.What payment methods are accepted for LM4041CIM7X-1.2/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4041CIM7X-1.2/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4041CIM7X-1.2/NOPB?
LM4041CIM7X-1.2/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4041CIM7X-1.2/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-1.2/NOPB?
For technical support, including LM4041CIM7X-1.2/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4041CIM7X-1.2/NOPB requirements.
6.How does Aetrix verify that LM4041CIM7X-1.2/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4041CIM7X-1.2/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-1.2/NOPB meets industry standards.
7.What is the process for return or replacement of LM4041CIM7X-1.2/NOPB?
All LM4041CIM7X-1.2/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4041CIM7X-1.2/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-1.2/NOPB part is unused and in its original packaging.
Return procedure for LM4041CIM7X-1.2/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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