My Inquiry
My Account
Texas Instruments LM4041BIM7-1.2/NOPB
- Part No.:
- LM4041BIM7-1.2/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4041BIM7-1.2/NOPB.pdf
- Description:
- IC VREF SHUNT 0.2% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,234
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4041BIM7-1.2/NOPB from Texas Instruments is a precision 1.225 V shunt voltage reference in SOT-23-3 package, rated for industrial temperature range (−40°C to +85°C), with ±0.2% initial tolerance at 25°C, 100 ppm/°C max temperature coefficient, and 20 μVRMS wideband noise (10 Hz–10 kHz). It delivers stable reference performance in low-power data-acquisition front-ends and battery-powered instrumentation.
For engineers reviewing the LM4041BIM7-1.2/NOPB datasheet, LM4041BIM7-1.2/NOPB pinout, LM4041BIM7-1.2/NOPB application, or LM4041BIM7-1.2/NOPB equivalent, key selection criteria include reverse breakdown voltage accuracy over temperature, minimum operating current (60 μA), dynamic impedance (≤1.5 Ω), capacitive load stability, and AEC-Q100 Grade 3 qualification for automotive subsystems.
Technical Context
The LM4041BIM7-1.2/NOPB uses bandgap-based Zener-zap trimmed architecture with curvature-corrected temperature drift compensation, enabling tight initial accuracy and low thermal hysteresis (0.08%). Its two-terminal shunt topology requires no output capacitor and tolerates arbitrary capacitive loads without oscillation.
It operates as a precision current-sink reference: cathode supplies regulated 1.225 V against anode (typically grounded), with reverse current ranging from 60 μA to 12 mA. The device achieves <1.5 mV load regulation across its full current range and maintains ≤10.4 mV total voltage error over −40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.225 V nominal reverse breakdown voltage; fixed value, not adjustable. |
| Initial Tolerance | ±0.2% at 25°C (±2.4 mV); grade B specification per TI datasheet section 5.5. |
| Temp Coefficient | ≤100 ppm/°C over −40°C to +85°C; ensures ≤±9.2 mV drift across full industrial range. |
| Min Operating Current | 60 μA at 25°C; enables ultra-low-power operation in sleep-mode sensor nodes. |
| Noise (10 Hz–10 kHz) | 20 μVRMS; supports high-resolution ADC biasing without added filtering. |
| Dynamic Impedance | ≤1.5 Ω at 1 mA / 120 Hz; provides stable regulation under varying load currents. |
| Long-Term Stability | 120 ppm after 1000 hours; critical for metrology-grade calibration retention. |
Pinout & Package
SOT-23-3 package (DBZ), body size 1.30 mm × 2.92 mm, with gull-wing leads. Pin 1 = Cathode (I/O), Pin 2 = Anode (O, typically grounded), Pin 3 = NC (no connect; must float or tie to anode per TI layout guidance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Cathode) | Shunt current sink and output node | Provides regulated 1.225 V referenced to anode; sinks all operating current. |
| Pin 2 (Anode) | Reference ground terminal | Typically connected to system ground; defines voltage reference point for cathode. |
| Pin 3 (NC) | No-connect terminal | Must remain unconnected or tied to anode; floating NC improves EMI immunity in noisy environments. |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Enables direct integration into space-constrained PCB layouts without stability-compensation components. |
| Capacitive load tolerance | Stable with any output capacitance-eliminates need for output isolation resistors in ADC reference buffers. |
| AEC-Q100 Grade 3 qualified | Validated for automotive applications up to +85°C ambient; suitable for infotainment and body-control modules. |
| Low 60 μA minimum current | Supports microamp-level system power budgets in always-on sensor interfaces and energy-harvesting designs. |
| 20 μVRMS broadband noise | Meets noise floor requirements of 16-bit+ SAR and delta-sigma ADCs without post-regulation filtering. |
Applications
| Battery-Powered Instrumentation | Data-Acquisition Front-End |
|---|---|
Use Scenario: Portable multimeter measuring DC voltage with 0.1% accuracy over 0–50°C ambient. IC Role / Device Role / Timing Role: Shunt reference providing stable 1.225 V for ADC reference input and analog front-end biasing. Use Value: ±0.2% initial tolerance and ≤100 ppm/°C TC ensure measurement accuracy remains within spec without recalibration. |
Use Scenario: Industrial PLC analog input module digitizing 4–20 mA sensor signals. IC Role / Device Role / Timing Role: Precision voltage reference for 24-bit delta-sigma ADC reference rail and op-amp bias networks. Use Value: 20 μVRMS noise and ≤1.5 Ω dynamic impedance prevent quantization noise degradation and maintain ENOB. |
| Automotive Body Electronics | Energy Metering Subsystem |
Use Scenario: Door control unit monitoring window position via resistive potentiometer with MCU ADC. IC Role / Device Role / Timing Role: AEC-Q100 Grade 3 shunt reference supplying ratiometric reference to 12-bit internal ADC. Use Value: Qualified operation from −40°C to +85°C and 120 ppm long-term stability ensure consistent readings over vehicle lifetime. |
Use Scenario: Smart electricity meter measuring RMS voltage/current using isolated sigma-delta converters. IC Role / Device Role / Timing Role: Primary reference for metrology-grade ADCs and anti-tampering voltage monitors. Use Value: Thermal hysteresis of only 0.08% prevents offset drift during repeated thermal cycling in outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4041CIM3-1.2/NOPB | ±0.5% initial tolerance (vs. ±0.2%), same SOT-23-3 package and 1.225 V output. | Lower accuracy acceptable in cost-sensitive consumer sensors where 0.5% system error budget exists. | Select when tighter initial tolerance is unnecessary and BOM cost reduction is prioritized. |
| REF3012AIDBZR | 1.2 V output, ±0.2% tolerance, but series topology with 50 μA quiescent current and 3.6 V min input. | Requires supply voltage ≥3.6 V; unsuitable for direct shunt replacement in low-voltage (<2 V) or floating-node designs. | Choose only if system has ≥3.6 V rail and benefits from series regulator's higher PSRR and lower output impedance. |
Compared with LM4041CIM3-1.2/NOPB, the LM4041BIM7-1.2/NOPB offers 2.5× tighter initial accuracy at identical package and temperature rating; compared with REF3012AIDBZR, it enables true two-terminal operation down to 1.225 V with no minimum supply constraint.
Availability
LM4041BIM7-1.2/NOPB is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial data-acquisition systems, and automotive body electronics requiring stable component supply with guaranteed long-term availability.
Supply support for LM4041BIM7-1.2/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 specializing in analog and embedded processing technologies, with decades of expertise in precision reference design and automotive-grade qualification.
The LM4041-N product line delivers micro-power, high-accuracy shunt references for space- and power-constrained applications including portable test equipment, automotive subsystems, and smart metering ICs.
FAQ
What is the maximum operating current for LM4041BIM7-1.2/NOPB?
The LM4041BIM7-1.2/NOPB supports a maximum operating current of 12 mA, as specified in TI's recommended operating conditions. This allows robust regulation under heavy load transients while maintaining thermal safety in the SOT-23 package. Exceeding 12 mA risks exceeding absolute maximum ratings and may degrade long-term stability. The LM4041BIM7-1.2/NOPB is designed to operate reliably across its full 60 μA to 12 mA range.
Does LM4041BIM7-1.2/NOPB require an external capacitor for stability?
No, the LM4041BIM7-1.2/NOPB does not require an external output capacitor due to its internally compensated shunt architecture. TI explicitly states "no output capacitor required" and confirms stability with arbitrary capacitive loads. This eliminates board area and BOM cost associated with external stabilization components. The LM4041BIM7-1.2/NOPB maintains phase margin across all load capacitances, making it ideal for direct connection to ADC reference inputs or op-amp feedback networks.
Is LM4041BIM7-1.2/NOPB qualified for automotive use?
Yes, LM4041BIM7-1.2/NOPB is AEC-Q100 Grade 3 qualified for automotive applications, with validated operation from −40°C to +85°C ambient temperature. It meets stringent reliability and stress-test requirements for non-powertrain body electronics, including door modules, lighting controllers, and HVAC sensors. While not Grade 1 (−40°C to +125°C), its Grade 3 rating makes LM4041BIM7-1.2/NOPB suitable for cabin and chassis applications outside the engine bay.
What is the thermal hysteresis specification for LM4041BIM7-1.2/NOPB?
The LM4041BIM7-1.2/NOPB exhibits 0.08% thermal hysteresis, defined as the voltage difference measured at +25°C after cycling to −40°C versus after cycling to +125°C. This low hysteresis ensures repeatable reference accuracy during thermal cycling in field-deployed equipment such as portable meters and outdoor energy monitors. The value is consistent across all LM4041-N variants and is verified per TI's characterization methodology in datasheet section 5.5.
Can LM4041BIM7-1.2/NOPB be used in adjustable-output configurations?
No, LM4041BIM7-1.2/NOPB is a fixed 1.225 V shunt reference and lacks a feedback (FB) pin. Adjustable versions (e.g., LM4041AIM3-ADJ) use a 5-pin SC70 or different SOT-23 pinout with dedicated FB terminal. The LM4041BIM7-1.2/NOPB has only three pins (cathode, anode, NC) and cannot be configured for adjustable output. Attempting external resistor networks on its cathode will violate its two-terminal operation and invalidate regulation accuracy.
LM4041BIM7-1.2/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:
- ±0.2%
- 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
LM4041BIM7-1.2/NOPB FAQ
1.How can I place an order for LM4041BIM7-1.2/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4041BIM7-1.2/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 LM4041BIM7-1.2/NOPB reliable?
The price and inventory of LM4041BIM7-1.2/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4041BIM7-1.2/NOPB is usually 5 days.
3.What payment methods are accepted for LM4041BIM7-1.2/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4041BIM7-1.2/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4041BIM7-1.2/NOPB?
LM4041BIM7-1.2/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4041BIM7-1.2/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 LM4041BIM7-1.2/NOPB?
For technical support, including LM4041BIM7-1.2/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4041BIM7-1.2/NOPB requirements.
6.How does Aetrix verify that LM4041BIM7-1.2/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4041BIM7-1.2/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 LM4041BIM7-1.2/NOPB meets industry standards.
7.What is the process for return or replacement of LM4041BIM7-1.2/NOPB?
All LM4041BIM7-1.2/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4041BIM7-1.2/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 LM4041BIM7-1.2/NOPB part is unused and in its original packaging.
Return procedure for LM4041BIM7-1.2/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4041BIM7-1.2/NOPB Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
