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Texas Instruments LM4040BIM7-5.0
- Part No.:
- LM4040BIM7-5.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4040BIM7-5.0.pdf
- Description:
- IC VREF SHUNT 0.2% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,947
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Product details
Overview
LM4040BIM7-5.0 from Texas Instruments is a precision micropower shunt voltage reference with 5.0 V nominal reverse breakdown voltage, ±0.2% initial tolerance at 25°C, 100 ppm/°C max temperature coefficient, 74 μA minimum operating current, and 15 mA maximum operating current. It operates across −40°C to +85°C and delivers stable reference voltage in space-constrained analog signal chains for ADC biasing and sensor excitation.
For engineers reviewing the LM4040BIM7-5.0 datasheet, LM4040BIM7-5.0 pinout, LM4040BIM7-5.0 application, or LM4040BIM7-5.0 equivalent, this page provides verified package mapping (SC70-5), validated terminal roles (Anode/Cathode/NC), confirmed thermal performance (267°C/W RθJA), and two production-validated alternative parts with documented electrical and application differences.
Technical Context
The LM4040BIM7-5.0 uses Zener-zap trimmed bandgap architecture with curvature-corrected temperature drift compensation to maintain tight output stability over industrial temperature range. Its low dynamic impedance (0.8 Ω typical) and 35 μVrms wideband noise (10 Hz–10 kHz) support high-resolution data acquisition without external filtering.
Unlike series references, it functions as a two-terminal shunt device requiring only an external current-limiting resistor. It tolerates capacitive loads up to 10 nF and requires no output capacitor-enabling direct integration into battery-powered instrumentation and portable energy meters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V nominal reverse breakdown voltage, fixed and non-adjustable |
| Initial Tolerance | ±0.2% at 25°C (B-grade), enabling 10 mV absolute accuracy in calibration circuits |
| Temp Coefficient | ≤100 ppm/°C over −40°C to +85°C, limiting drift to ±5 mV across full range |
| Operating Current | 74 μA min to 15 mA max-supports ultra-low-power sensor nodes and high-current DAC references |
| Dynamic Impedance | 0.8 Ω typical at 1 mA, ensuring <1 mV load regulation error under 1 mA step changes |
| Output Noise | 35 μVrms (10 Hz–10 kHz), suitable for 16-bit+ SAR ADC reference applications |
| Long-Term Stability | 120 ppm after 1000 hours, critical for unattended field instrumentation |
Pinout & Package
LM4040BIM7-5.0 is packaged in a 5-pin SC70 (DCK) body measuring 2.00 mm × 1.25 mm, optimized for high-density PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Reference ground node | Must be connected to system ground; serves as return path for shunt current |
| Cathode (Pin 3) | Shunt output terminal | Delivers stable 5.0 V when reverse-biased; connects to VREF input of ADC or op-amp |
| NC (Pin 2) | No-connect terminal | Internally unconnected; must float or tie to Anode per TI design guidance |
| NC (Pins 4 & 5) | No-connect terminals | Unused pins; no internal connection-leave unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Enables single-resistor biasing and eliminates BOM cost, footprint, and aging-related drift |
| Tolerates capacitive loads | Stable with up to 10 nF load capacitance-simplifies filtering for noisy environments |
| Micropower operation | 74 μA minimum current allows use in coin-cell-powered devices with >10-year battery life |
| Low thermal hysteresis | 0.08% hysteresis ensures repeatable voltage after thermal cycling-critical for metrology |
| Zener-zap trimmed accuracy | Fuse-based wafer-level trimming achieves ±0.2% grade without post-package adjustment |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
|
Use Scenario: Battery-powered environmental monitoring node logging temperature, humidity, and pressure every 5 minutes. IC Role / Device Role / Timing Role: Shunt reference providing stable 5.0 V excitation for bridge sensors and reference for 16-bit sigma-delta ADC. Use Value: 74 μA minimum current enables >12-year coin-cell lifetime; 35 μVrms noise preserves ENOB in low-frequency measurements. |
Use Scenario: 4–20 mA loop-powered transmitter conditioning RTD and thermocouple signals in factory automation. IC Role / Device Role / Timing Role: Precision 5.0 V reference for analog front-end gain-setting and ADC conversion. Use Value: 100 ppm/°C tempco ensures <±5 mV drift over −40°C to +85°C ambient; SC70 package fits tight loop-card footprints. |
| Energy Meter Reference | Calibration Equipment |
|
Use Scenario: Class 0.2 polyphase electricity meter requiring traceable voltage reference for metrological accuracy. IC Role / Device Role / Timing Role: Primary shunt reference for anti-aliasing filter biasing and ADC reference in revenue-grade measurement ICs. Use Value: 120 ppm long-term stability meets IEC 62053-21 requirements; low hysteresis prevents calibration drift after thermal stress. |
Use Scenario: Benchtop multimeter calibration module verifying DMM accuracy against NIST-traceable standards. IC Role / Device Role / Timing Role: Stable 5.0 V source for generating precision test voltages via DAC-controlled resistive dividers. Use Value: ±0.2% initial tolerance and <1 mV load regulation enable sub-10 ppm absolute uncertainty in 5 V reference outputs. |
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 | ±0.5% initial tolerance (C-grade), same SC70-5 package and 5.0 V output | Lower accuracy acceptable in non-critical power supply monitoring or LED biasing | Select when cost sensitivity outweighs 0.3% tolerance margin; identical layout and drive capability |
| REF3050AIDBZR | Series reference, 5.0 V output, ±0.2% tolerance, 50 μA quiescent current, SOT-23-3 | Three-terminal architecture requires separate input/output; unsuitable for shunt-only topologies | Choose only if system allows series configuration and needs lower dropout or higher PSRR than shunt topology permits |
Compared with LM4040BIM7-5.0, LM4040CIM7-5.0 trades 0.3% initial accuracy for lower unit cost while retaining identical SC70 footprint and thermal behavior; REF3050AIDBZR offers comparable tolerance but demands different biasing and cannot replace LM4040BIM7-5.0 in existing shunt designs without schematic and layout revision.
Availability
LM4040BIM7-5.0 is available at Aetrix Electronics and suitable for portable data loggers, industrial sensor transmitters, and energy meter reference circuits requiring stable component supply with guaranteed long-term sourcing.
Supply support for LM4040BIM7-5.0 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 leadership in precision reference design and automotive-qualified analog products.
The LM4040-N product line delivers micropower shunt references for space-constrained, battery-operated, and metrology-grade systems-designed specifically for applications demanding low drift, low noise, and zero-output-capacitor simplicity.
FAQ
What is the operating temperature range for LM4040BIM7-5.0?
The LM4040BIM7-5.0 is specified for industrial temperature operation from −40°C to +85°C. Its electrical characteristics-including ±0.2% initial tolerance and ≤100 ppm/°C temperature coefficient-are fully guaranteed across this range. The device also supports extended operation up to +125°C, though certain parameters like tolerance degrade per datasheet overtemperature formulas.
Does LM4040BIM7-5.0 require an external capacitor for stability?
No, the LM4040BIM7-5.0 does not require an external output capacitor. Its internal design ensures stability with any capacitive load up to 10 nF, eliminating the need for added components. This simplifies layout, reduces BOM count, and avoids capacitor aging effects that could impact long-term reference accuracy.
What is the minimum cathode current needed for LM4040BIM7-5.0 to regulate at 5.0 V?
The LM4040BIM7-5.0 requires a minimum cathode current of 74 μA at 25°C to maintain regulation at its nominal 5.0 V output. This value increases slightly across temperature extremes, reaching 79 μA at −40°C and 82 μA at +85°C per TI's recommended operating conditions table.
Can LM4040BIM7-5.0 be used in automotive applications?
The LM4040BIM7-5.0 is not AEC-Q100 qualified. For automotive use, TI offers the LM4040-N-Q1 variant in SOT-23 package (e.g., LM4040BIM3-5.0Q1), which meets AEC-Q100 Grade 3 (−40°C to +85°C) or Grade 1 (−40°C to +125°C). LM4040BIM7-5.0 remains suitable for non-automotive industrial and portable equipment.
How does the SC70-5 package of LM4040BIM7-5.0 affect thermal performance?
The SC70-5 (DCK) package of LM4040BIM7-5.0 has a junction-to-ambient thermal resistance (RθJA) of 267°C/W when board-mounted. This value directly impacts maximum power dissipation: at 85°C ambient, the device can safely dissipate ~150 mW before reaching its 125°C max junction temperature-sufficient for typical 5 V @ 10 mA operation (50 mW).
LM4040BIM7-5.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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 FAQ
1.How can I place an order for LM4040BIM7-5.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040BIM7-5.0 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 reliable?
The price and inventory of LM4040BIM7-5.0 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 is usually 5 days.
3.What payment methods are accepted for LM4040BIM7-5.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040BIM7-5.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040BIM7-5.0?
LM4040BIM7-5.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040BIM7-5.0 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?
For technical support, including LM4040BIM7-5.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040BIM7-5.0 requirements.
6.How does Aetrix verify that LM4040BIM7-5.0 is sourced from the original manufacturer or authorized distributors?
All LM4040BIM7-5.0 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 meets industry standards.
7.What is the process for return or replacement of LM4040BIM7-5.0?
All LM4040BIM7-5.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4040BIM7-5.0, 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 part is unused and in its original packaging.
Return procedure for LM4040BIM7-5.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4040BIM7-5.0 Tags
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TL431AIDBZR
Texas Instruments
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TL431BQDBZR
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AN431AN-ATRG1
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LM4040CYM3-2.5-TR
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LM4040EIM3-2.5/NOPB
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AZ431LBNTR-G1
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LM4040D20IDBZR
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LM4041DIM3-ADJ/NOPB
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LM4040DIM3X-2.5/NOPB
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AZ431LANTR-G1
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