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Texas Instruments LM4040BIM7-5.0/NOPB
- Part No.:
- LM4040BIM7-5.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4040BIM7-5.0/NOPB.pdf
- Description:
- IC VREF SHUNT 0.2% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,637
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Product details
Overview
LM4040BIM7-5.0/NOPB from Texas Instruments is a precision micropower shunt voltage reference in SC70-5 package, delivering a stable 5.0 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 74 μA to 15 mA over −40°C to +85°C and requires no output capacitor.
For engineers reviewing the LM4040BIM7-5.0/NOPB datasheet, LM4040BIM7-5.0/NOPB pinout, LM4040BIM7-5.0/NOPB application, or LM4040BIM7-5.0/NOPB equivalent, this device serves as a space-constrained, low-noise, high-stability reference for analog signal chains, data acquisition front-ends, and automotive sensor conditioning where tight voltage accuracy and capacitive-load immunity are critical.
Technical Context
The LM4040BIM7-5.0/NOPB uses Zener-zap trimming during wafer sort to achieve ±0.2% initial accuracy and incorporates bandgap-derived temperature drift curvature correction. Its low dynamic impedance (0.3–0.8 Ω) ensures minimal voltage shift across operating current (74 μA–15 mA) and temperature (−40°C to +85°C).
Unlike series references, it functions as a two-terminal shunt device-cathode supplies regulated voltage while anode connects to ground-enabling simple biasing in high-impedance nodes and compatibility with capacitive loads without external stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V nominal reverse breakdown voltage; provides precise DC reference for ADCs, DACs, and comparators. |
| Initial Tolerance | ±0.2% at 25°C (Grade B); enables high-resolution measurement without post-calibration in industrial-grade systems. |
| Temp Coefficient | ≤100 ppm/°C max over −40°C to +85°C; ensures <±0.425 mV drift across full industrial range. |
| Operating Current | 74 μA min to 15 mA max; supports ultra-low-power sensor interfaces and robust current-sink capability. |
| Output Noise | 35 μVrms (10 Hz–10 kHz); minimizes noise contribution in precision 16-bit+ data acquisition paths. |
| Dynamic Impedance | 0.3–0.8 Ω at 1 mA; maintains voltage stability under varying load currents and fast transient conditions. |
Pinout & Package
LM4040BIM7-5.0/NOPB is packaged in a 5-pin SC70 (DCK) outline measuring 2.00 mm × 1.25 mm. Pin 1 is Anode (ground), Pin 3 is Cathode (output), Pins 4 and 5 are no-connect (NC), and Pin 2 is a floating or anode-connected terminal for EMI mitigation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Ground reference node | Must be connected to system ground; defines the 0 V reference for cathode output voltage. |
| NC (Pin 2) | EMI suppression terminal | Optional connection to anode to reduce high-frequency noise coupling in noisy environments. |
| Cathode (Pin 3) | Shunt current sink / output node | Delivers regulated 5.0 V when biased with external current; sinks all excess current to maintain voltage. |
| NC (Pins 4, 5) | No-connect | Internally unconnected; must remain unattached or grounded per layout best practices. |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Enables direct integration into compact PCB layouts without stability-compensation components. |
| Tolerates capacitive loads | Stable operation with up to 10 nF load capacitance-ideal for driving ADC input filters or op-amp buffers. |
| Zener-zap voltage trim | Ensures ±0.2% initial accuracy at 25°C without laser trimming, improving production yield and cost control. |
| Low quiescent current | 74 μA minimum operating current allows use in battery-powered field transmitters and IoT edge sensors. |
| Wide temperature range | Rated for −40°C to +85°C (Industrial Grade I), supporting deployment in factory automation and energy infrastructure. |
Applications
| Field Transmitters | Data Acquisition |
|---|---|
Use Scenario: 4–20 mA loop-powered sensor transmitter in oil & gas process control. IC Role / Device Role / Timing Role: Shunt voltage reference for DAC output scaling and current-loop regulation circuitry. Use Value: ±0.2% initial tolerance and 100 ppm/°C TC ensure ≤0.5% total error over temperature, meeting SIL-2 functional safety margin requirements. |
Use Scenario: Isolated 16-bit analog input module for PLC backplanes. IC Role / Device Role / Timing Role: Precision reference for SAR ADC driver stage and anti-aliasing filter biasing. Use Value: 35 μVrms noise and 0.8 Ω dynamic impedance prevent SNR degradation and maintain ENOB ≥15.2 bits. |
| Analog Input Module | Automotive Sensor Conditioning |
Use Scenario: Modular industrial I/O card with multiple channel types (voltage/current/thermocouple). IC Role / Device Role / Timing Role: Shared reference source for multiplexed analog front-end gain/offset calibration. Use Value: Stable 5.0 V output across 74 μA–15 mA current range enables consistent calibration across all channel configurations. |
Use Scenario: Engine coolant temperature (ECT) sensor signal conditioning in powertrain ECUs. IC Role / Device Role / Timing Role: Reference for ratiometric bridge excitation and ADC conversion in AEC-Q100-compliant designs. Use Value: Qualified to AEC-Q100 Grade 3 (−40°C to +85°C) and immune to capacitive loading from long harness traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040CIM7-5.0/NOPB | ±0.5% initial tolerance (Grade C), same SC70-5 package and 5.0 V output. | Lower accuracy acceptable in non-critical biasing or coarse calibration circuits. | Select when cost sensitivity outweighs need for <±10 mV absolute reference error at 25°C. |
| REF4132A50IDBVR | Series reference with 5.0 V output, ±0.05% initial accuracy, 12 ppm/°C TC, but requires output capacitor and higher quiescent current (380 μA). | Suitable for ultra-high-precision applications where supply headroom permits series topology. | Choose only if system design accommodates series architecture and demands sub-10 ppm/°C drift performance. |
Compared with LM4040CIM7-5.0/NOPB, the LM4040BIM7-5.0/NOPB delivers tighter initial tolerance (±0.2% vs. ±0.5%) at identical footprint and current range; versus REF4132A50IDBVR, it offers lower power, simpler layout, and shunt flexibility-but trades absolute accuracy and temperature stability for ease of use and cost.
Availability
LM4040BIM7-5.0/NOPB is available at Aetrix Electronics and suitable for field transmitters, data acquisition modules, and automotive sensor conditioning requiring stable component supply across industrial and automotive temperature grades.
Supply support for LM4040BIM7-5.0/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, embedded processing, and digital signal technologies, with decades of expertise in precision analog ICs.
The LM4040-N series was designed specifically for space-constrained, micropower applications demanding high initial accuracy, low noise, and robust capacitive-load stability-targeting industrial instrumentation, automotive sensing, and energy infrastructure.
FAQ
What is the maximum operating current for LM4040BIM7-5.0/NOPB?
The LM4040BIM7-5.0/NOPB supports a maximum operating current of 15 mA. This limit ensures safe power dissipation within the SC70 package's thermal constraints (241 mW at 25°C ambient) and maintains specified electrical performance across temperature. Exceeding 15 mA risks exceeding junction temperature limits and invalidating accuracy specifications.
Does LM4040BIM7-5.0/NOPB require an external capacitor for stability?
No, the LM4040BIM7-5.0/NOPB does not require an external output capacitor. Its internal design achieves unconditional stability with any capacitive load up to at least 10 nF, eliminating the need for compensation components and simplifying PCB layout in space-constrained applications.
What is the temperature coefficient specification for LM4040BIM7-5.0/NOPB?
The LM4040BIM7-5.0/NOPB has a maximum average temperature coefficient of 100 ppm/°C over the −40°C to +85°C industrial temperature range. This translates to a worst-case voltage drift of ±0.425 mV across the full range, calculated as 5.0 V × 100 ppm/°C × 85°C span.
Is LM4040BIM7-5.0/NOPB qualified for automotive applications?
The LM4040BIM7-5.0/NOPB is not AEC-Q100 qualified. It belongs to the industrial-grade LM4040-N family (Grade I, −40°C to +85°C). For automotive use, TI offers the LM4040-N-Q1 variant (e.g., LM4040BIM7-5.0Q1), which meets AEC-Q100 Grade 3 requirements and includes extended reliability testing.
How does the NC pin (Pin 2) function in LM4040BIM7-5.0/NOPB?
In the LM4040BIM7-5.0/NOPB SC70 package, Pin 2 is a no-connect terminal intended for EMI mitigation. TI recommends leaving it floating or connecting it to the anode (Pin 1) in high-noise environments-such as near switching regulators or transformers-to reduce high-frequency interference coupling into the reference node.
LM4040BIM7-5.0/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):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 80µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 80 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
LM4040BIM7-5.0/NOPB FAQ
1.How can I place an order for LM4040BIM7-5.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040BIM7-5.0/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 LM4040BIM7-5.0/NOPB reliable?
The price and inventory of LM4040BIM7-5.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4040BIM7-5.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4040BIM7-5.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040BIM7-5.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040BIM7-5.0/NOPB?
LM4040BIM7-5.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040BIM7-5.0/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 LM4040BIM7-5.0/NOPB?
For technical support, including LM4040BIM7-5.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040BIM7-5.0/NOPB requirements.
6.How does Aetrix verify that LM4040BIM7-5.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4040BIM7-5.0/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 LM4040BIM7-5.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4040BIM7-5.0/NOPB?
All LM4040BIM7-5.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4040BIM7-5.0/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 LM4040BIM7-5.0/NOPB part is unused and in its original packaging.
Return procedure for LM4040BIM7-5.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4040BIM7-5.0/NOPB Tags
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TL431AIDBZR
Texas Instruments
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TL431BQDBZR
Texas Instruments
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AZ431LBNTR-G1
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LM4040DIM3X-2.5/NOPB
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AZ431LANTR-G1
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