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Texas Instruments LM4040BIM7X-2.5/NOPB
- Part No.:
- LM4040BIM7X-2.5/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4040BIM7X-2.5/NOPB.pdf
- Description:
- IC VREF SHUNT 0.2% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,421
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Product details
Overview
LM4040BIM7X-2.5/NOPB from Texas Instruments is a precision micropower shunt voltage reference in SC70-3 package, delivering a stable 2.5 V reverse breakdown voltage with ±0.2% initial tolerance (Grade B) at 25°C, 100 ppm/°C max temperature coefficient, and 35 μVrms wideband noise (10 Hz–10 kHz). It operates from 60 μA to 15 mA over −40°C to +85°C and requires no output capacitor - used in analog input modules, field transmitters, and data acquisition systems where space and stability are critical.
For engineers reviewing the LM4040BIM7X-2.5/NOPB datasheet, LM4040BIM7X-2.5/NOPB pinout, LM4040BIM7X-2.5/NOPB application, or LM4040BIM7X-2.5/NOPB equivalent, this page provides verified electrical specs, thermal behavior, SC70-3 terminal mapping, automotive-grade AEC-Q100 qualification context (Grade 3), and real-world selection guidance against comparable shunt references.
Technical Context
The LM4040BIM7X-2.5/NOPB uses Zener-zap trimming during wafer sort to achieve ±0.2% initial accuracy and integrates bandgap-derived temperature drift curvature correction for stable output across industrial temperature range. Its low dynamic impedance (0.8 Ω typical at 1 mA) ensures minimal voltage shift under load variation.
Designed as a two-terminal shunt device, it functions by sinking current through its cathode to maintain precise 2.5 V across external load/resistor networks. It tolerates capacitive loads without oscillation and exhibits 0.08% thermal hysteresis after cycling from −40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V nominal reverse breakdown voltage, specified at 100 μA test current |
| Initial Tolerance | ±0.2% (Grade B) at 25°C - translates to ±5 mV absolute error in 2.5 V output |
| Temp Coefficient | ≤100 ppm/°C max - contributes ≤±16.25 mV drift over −40°C to +85°C |
| Operating Current | 60 μA to 15 mA - supports ultra-low-power sensor biasing and high-current reference buffering |
| Output Noise | 35 μVrms (10 Hz–10 kHz) - enables high-resolution ADC reference without added filtering |
| Dynamic Impedance | 0.8 Ω typical at 1 mA - ensures <1 mV output shift per 1 mA load change |
| Long-Term Stability | 120 ppm after 1000 hours - ≈±0.3 mV drift over extended operation |
Pinout & Package
LM4040BIM7X-2.5/NOPB is packaged in SC70-3 (DCK), with 2.00 mm × 1.25 mm body size and gull-wing leads. Pin 1 is Anode (ground reference), Pin 2 is Cathode (shunt current sink/output node), and Pin 3 is NC (no connect, must float or tie to anode per EMI mitigation guidance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Reference ground node | Internally tied to substrate; must be connected to system ground or low-impedance return path |
| Cathode (Pin 2) | Shunt output terminal | Sinks current to regulate 2.5 V across external resistor; connects to load or feedback network |
| NC (Pin 3) | No-connect terminal | Not internally bonded; leave floating or connect to anode only in high-EMI environments |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Stable operation with any capacitive load eliminates BOM cost and layout area for stabilization caps |
| Micropower operation | 60 μA minimum operating current enables use in battery-powered field transmitters and IoT sensors |
| AEC-Q100 Grade 3 qualified | Validated for automotive applications from −40°C to +85°C with full production testing and traceability |
| Low thermal hysteresis | 0.08% hysteresis after −40°C/+125°C cycling ensures repeatable accuracy in cyclic thermal environments |
| Zener-zap trimmed accuracy | Fuse-based wafer-level trimming achieves tight ±0.2% initial tolerance without post-package calibration |
Applications
| Field Transmitter Calibration | Data Acquisition Reference |
|---|---|
Use Scenario: 4–20 mA loop-powered transmitter conditioning analog sensor signals before current conversion. IC Role / Device Role / Timing Role: Shunt reference providing stable 2.5 V excitation for bridge sensors and ADC reference for digitizing analog inputs. Use Value: Enables ±0.1% total unadjusted error (TUE) in 16-bit DAQ channels by minimizing reference drift and noise contribution. |
Use Scenario: Industrial PLC analog input module measuring thermocouples, RTDs, and voltage signals. IC Role / Device Role / Timing Role: Precision voltage reference for SAR ADCs and programmable gain instrumentation amplifiers. Use Value: Delivers 35 μVrms noise floor and <100 ppm/°C drift - directly supporting 16-bit effective resolution over temperature. |
| Energy Infrastructure Monitoring | Automotive Battery Management |
Use Scenario: Smart meter voltage monitoring and anti-tampering detection circuits in utility-grade meters. IC Role / Device Role / Timing Role: Stable 2.5 V reference for voltage scaling and comparator thresholds in energy measurement ASICs. Use Value: Maintains accuracy over 10+ year field life with only 120 ppm long-term drift - meeting IEC 62053 metrology requirements. |
Use Scenario: Cell voltage monitoring in 12 V lead-acid or 48 V mild-hybrid battery packs. IC Role / Device Role / Timing Role: Shunt reference for precision voltage dividers feeding BMS ADC inputs. Use Value: AEC-Q100 Grade 3 qualification and −40°C to +85°C operation ensure reliability in under-hood environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL4050B25IDBZR | 2.5 V, ±0.2% initial tolerance, SOT-23-3, 75 ppm/°C max tempco, 20 μVrms noise | Lower noise and tighter tempco, but higher minimum current (75 μA) and no AEC-Q100 qualification | Preferred for high-precision, non-automotive DAQ where noise dominates error budget |
| MAX6002BESA+ | 2.5 V, ±0.2% initial tolerance, SO-8, 50 ppm/°C max tempco, 25 μVrms noise, 100 μA min current | SO-8 package offers better thermal dissipation and lower tempco, but larger footprint and no automotive grade | Chosen when board space allows and thermal stability at high ambient (>85°C) is critical |
Compared with TL4050B25IDBZR and MAX6002BESA+, the LM4040BIM7X-2.5/NOPB uniquely combines SC70-3 miniaturization, AEC-Q100 Grade 3 compliance, and 60 μA ultra-low operating current - making it optimal for space-constrained automotive and portable industrial sensors where qualification and micropower coexist.
Availability
LM4040BIM7X-2.5/NOPB is available at Aetrix Electronics and suitable for field transmitters, energy infrastructure monitoring, and data acquisition systems requiring stable component supply, long-lifecycle support, and automotive-grade reliability.
Supply support for LM4040BIM7X-2.5/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 focused on analog and embedded processing technologies, with decades of expertise in precision analog ICs and automotive-qualified components.
The LM4040-N series was designed specifically for space-constrained, high-stability applications such as industrial process control, automotive sensing, and portable instrumentation - emphasizing micropower operation, no-capacitor stability, and wafer-level trimming for accuracy.
FAQ
What is the maximum operating current for LM4040BIM7X-2.5/NOPB?
The LM4040BIM7X-2.5/NOPB supports a maximum operating current of 15 mA, as specified in the Recommended Operating Conditions table. This limit ensures safe power dissipation within the SC70-3 package's 241 mW rating at 25°C ambient. Exceeding 15 mA risks thermal overload and parametric shift, especially above 85°C ambient.
Does LM4040BIM7X-2.5/NOPB require an output capacitor for stability?
No, the LM4040BIM7X-2.5/NOPB does not require an output capacitor. Its internal design provides inherent stability with any capacitive load, including direct connection to ADC reference inputs or op-amp feedback nodes. This eliminates external components and PCB area typically needed for shunt reference stabilization.
Is LM4040BIM7X-2.5/NOPB qualified for automotive applications?
Yes, LM4040BIM7X-2.5/NOPB is AEC-Q100 qualified for automotive use (Grade 3: −40°C to +85°C). It undergoes stress testing per AEC-Q100-002 (HBM ±2000 V) and AEC-Q100-011 (CDM ±750 V), and is manufactured with automotive-specific process controls and traceability - confirmed in TI's official LM4040-N-Q1 documentation.
What is the thermal hysteresis specification for LM4040BIM7X-2.5/NOPB?
The LM4040BIM7X-2.5/NOPB has a thermal hysteresis of 0.08%, 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 accuracy in systems experiencing repeated thermal cycles, such as outdoor energy meters or engine-bay BMS units.
Can LM4040BIM7X-2.5/NOPB be used in place of LM4040AIM7X-2.5/NOPB?
Yes, LM4040BIM7X-2.5/NOPB can replace LM4040AIM7X-2.5/NOPB in most designs, with the trade-off of relaxed initial tolerance: ±0.2% vs. ±0.1%. Both share identical SC70-3 package, pinout, temperature range, noise, and dynamic impedance. Use the B-grade where ±0.2% total error budget accommodates the 2.5 mV wider tolerance band.
LM4040BIM7X-2.5/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):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 35µVrms
- 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
LM4040BIM7X-2.5/NOPB FAQ
1.How can I place an order for LM4040BIM7X-2.5/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040BIM7X-2.5/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 LM4040BIM7X-2.5/NOPB reliable?
The price and inventory of LM4040BIM7X-2.5/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4040BIM7X-2.5/NOPB is usually 5 days.
3.What payment methods are accepted for LM4040BIM7X-2.5/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040BIM7X-2.5/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040BIM7X-2.5/NOPB?
LM4040BIM7X-2.5/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040BIM7X-2.5/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 LM4040BIM7X-2.5/NOPB?
For technical support, including LM4040BIM7X-2.5/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040BIM7X-2.5/NOPB requirements.
6.How does Aetrix verify that LM4040BIM7X-2.5/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4040BIM7X-2.5/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 LM4040BIM7X-2.5/NOPB meets industry standards.
7.What is the process for return or replacement of LM4040BIM7X-2.5/NOPB?
All LM4040BIM7X-2.5/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4040BIM7X-2.5/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 LM4040BIM7X-2.5/NOPB part is unused and in its original packaging.
Return procedure for LM4040BIM7X-2.5/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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