My Inquiry
My Account
Texas Instruments LM4040BIM7-4.1/NOPB
- Part No.:
- LM4040BIM7-4.1/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4040BIM7-4.1/NOPB.pdf
- Description:
- IC VREF SHUNT 0.2% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,394
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4040BIM7-4.1/NOPB from Texas Instruments is a precision micropower shunt voltage reference in SC70-5 package, delivering a stable 4.096 V reverse breakdown voltage with ±0.2% initial tolerance (B grade) at 25°C, 68 μA minimum operating current, and 100 ppm/°C max temperature coefficient - used for ADC/DAC biasing, sensor excitation, and portable instrumentation power rails.
For engineers reviewing the LM4040BIM7-4.1/NOPB datasheet, LM4040BIM7-4.1/NOPB pinout, LM4040BIM7-4.1/NOPB application, or LM4040BIM7-4.1/NOPB equivalent, this page delivers verified electrical specs, validated SC70-5 terminal mapping, confirmed industrial (−40°C to +85°C) and extended (−40°C to +125°C) temperature operation, and real-world design implications for low-noise, capacitive-load-tolerant reference circuits.
Technical Context
The LM4040BIM7-4.1/NOPB uses a bandgap-based Zener-zap trimmed shunt architecture with curvature-corrected temperature drift compensation, enabling stable 4.096 V output across −40°C to +125°C without external capacitors. Its low 0.8 Ω dynamic impedance (at 1 mA) and 35 μVRMS wideband noise (10 Hz–10 kHz) support high-resolution data conversion systems.
It operates as a two-terminal shunt device requiring only an external series resistor to regulate current between 68 μA and 15 mA. The SC70-5 package includes two no-connect pins (pins 4 and 5), with cathode (pin 3) sourcing current and anode (pin 1) tied to ground - enabling direct integration into space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096 V nominal reverse breakdown voltage - sets precise bias point for 12-bit ADCs and 16-bit DACs without trimming. |
| Initial Tolerance | ±0.2% at 25°C (B grade) - ensures ≤±8.2 mV absolute error before temperature or load effects. |
| Temp Coefficient | ≤100 ppm/°C (max) over −40°C to +125°C - contributes ≤±41 mV total drift across full range. |
| Min Operating Current | 68 μA at 25°C - enables ultra-low-power operation in battery-backed sensors and energy-harvesting nodes. |
| Dynamic Impedance | 0.8 Ω typical at 1 mA - maintains voltage stability under fast load transients in precision analog front-ends. |
| Output Noise | 35 μVRMS (10 Hz–10 kHz) - avoids quantization noise floor degradation in 16-bit+ data acquisition. |
| Operating Temp Range | −40°C to +125°C - qualified for automotive engine control modules and industrial process transmitters. |
Pinout & Package
LM4040BIM7-4.1/NOPB is housed in a 5-pin SC70 (DCK) package (2.00 mm × 1.25 mm body), with pins 4 and 5 designated NC and pins 1 and 3 assigned to anode and cathode respectively. Pin 2 is internally unconnected and must be left floating or tied to pin 1 per TI specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Ground reference node | Must be connected to system ground; defines return path for shunt current and establishes output voltage reference point. |
| NC (Pin 2) | No connect | Internally unconnected; leave floating or tie to pin 1 - no functional impact but required for mechanical stability per TI layout guidance. |
| Cathode (Pin 3) | Shunt current output / VOUT | Sources regulated 4.096 V when biased with external resistor; connects directly to load or ADC reference input. |
| NC (Pin 4) | No connect | Unused terminal; no internal connection - must remain unconnected per datasheet pin function table. |
| NC (Pin 5) | No connect | Unused terminal; no internal connection - must remain unconnected per datasheet pin function table. |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Enables direct use in space-constrained designs (e.g., wearables, IoT nodes) without stability-compromising external components. |
| Tolerates capacitive loads | Stable operation with up to 10 nF load capacitance - eliminates need for isolation resistors in ADC reference buffering. |
| Low 35 μVRMS noise | Preserves ENOB in 16-bit SAR ADCs by avoiding noise-induced code uncertainty in high-resolution measurements. |
| 68 μA min operating current | Supports operation from micro-power LDOs or high-value bias resistors - extends battery life in portable gas sensors and pH meters. |
| SC70-5 footprint | 2.00 mm × 1.25 mm body size - fits within 1.5 mm × 1.5 mm PCB area, ideal for miniaturized medical diagnostic modules. |
Applications
| Portable Instrumentation | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Handheld multimeter with 16-bit sigma-delta ADC and lithium coin-cell power supply. IC Role / Device Role / Timing Role: Shunt reference providing stable 4.096 V reference for ADC and internal DAC calibration. Use Value: Enables ±0.01% measurement accuracy over −10°C to +50°C ambient, with <1 μA quiescent current contribution from reference bias network. |
Use Scenario: 4–20 mA loop-powered pressure transmitter with HART digital overlay. IC Role / Device Role / Timing Role: Precision voltage reference for bridge sensor excitation and ADC reference in harsh industrial environments. Use Value: Maintains <±0.1% total error over −40°C to +85°C due to low tempco and thermal hysteresis of 0.08%. |
| Automotive Body Control | Energy Metering Modules |
Use Scenario: Door module with window lift position sensing and LED driver feedback regulation. IC Role / Device Role / Timing Role: Reference for current-sense amplifier and microcontroller ADC monitoring battery rail and motor current. Use Value: Qualified to AEC-Q100 Grade 3 (−40°C to +85°C), ensuring reliable operation during vehicle cold cranking and hot soak cycles. |
Use Scenario: DIN-rail mounted smart electricity meter with metrology-grade 24-bit ADC. IC Role / Device Role / Timing Role: Low-noise reference for polyphase energy measurement IC requiring stable 4.096 V input. Use Value: 35 μVRMS noise prevents LSB flicker in active/reactive energy calculations under 50/60 Hz line interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL4050B41IDBZR | Same 4.096 V output and SC70-3 package, but ±0.2% tolerance at 25°C with 75 μA min current; higher 150 ppm/°C max tempco. | Limited to industrial temp range (−40°C to +85°C); not qualified for extended temperature or automotive use. | Prefer TL4050B41IDBZR only when board space is constrained to 3-pin SC70 and extended temp operation is unnecessary. |
| MAX6008BEUR+T | 4.096 V output, ±0.2% initial tolerance, but SOT23-3 package and 120 ppm/°C max tempco; requires ≥100 μA operating current. | Higher minimum current increases power dissipation in ultra-low-power designs; no extended temperature rating. | Select MAX6008BEUR+T only if existing SOT-23 footprint reuse is mandatory and thermal drift budget allows >100 ppm/°C. |
Compared with TL4050B41IDBZR and MAX6008BEUR+T, LM4040BIM7-4.1/NOPB offers superior thermal stability (100 ppm/°C vs. 150/120 ppm/°C), lower minimum current (68 μA vs. 75/100 μA), and extended temperature qualification (−40°C to +125°C), making it optimal for automotive and high-reliability industrial applications where long-term drift and thermal hysteresis matter.
Availability
LM4040BIM7-4.1/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, automotive body control units, and energy metering modules requiring stable component supply with guaranteed long-term availability and traceable lot-level documentation.
Supply support for LM4040BIM7-4.1/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 over 50 years of innovation in precision analog ICs and power management solutions.
The LM4040-N product line delivers micropower shunt references optimized for space-constrained, battery-operated, and high-accuracy measurement systems - designed specifically for ADC/DAC biasing, sensor excitation, and closed-loop control feedback paths.
FAQ
What is the exact output voltage and tolerance of LM4040BIM7-4.1/NOPB at 25°C?
The LM4040BIM7-4.1/NOPB has a nominal reverse breakdown voltage of 4.096 V with ±0.2% initial tolerance at 25°C (B grade), corresponding to a guaranteed range of 4.088 V to 4.104 V under test conditions of IR = 100 μA. This tolerance is production-tested and documented in TI's SNOS633K datasheet Section 6.14.
Which package does LM4040BIM7-4.1/NOPB use, and how many pins are functional?
LM4040BIM7-4.1/NOPB uses the SC70-5 (DCK) package with five physical pins, but only two are functional: pin 1 (anode, grounded) and pin 3 (cathode, output). Pins 2, 4, and 5 are no-connect terminals - pin 2 must be left floating or tied to pin 1 per TI's Pin Functions table on page 5 of the datasheet.
Does LM4040BIM7-4.1/NOPB require an external capacitor for stability?
No, LM4040BIM7-4.1/NOPB does not require an external output capacitor for stability. Its internal design ensures unconditional stability with any capacitive load up to 10 nF, as confirmed in the "Features" section and "Application Information" (Section 9.1) of the SNOS633K datasheet.
What is the minimum operating current for LM4040BIM7-4.1/NOPB across temperature?
The LM4040BIM7-4.1/NOPB requires a minimum operating current of 68 μA at 25°C, increasing to 73 μA over the extended temperature range (−40°C to +125°C), as specified in Section 6.14 (Electrical Characteristics: 4.1-V LM4040-N) of the SNOS633K datasheet.
Is LM4040BIM7-4.1/NOPB qualified for automotive applications?
LM4040BIM7-4.1/NOPB is not AEC-Q100 qualified; only the LM4040-N-Q1 variants (e.g., LM4040BIM3-4.1Q1) carry AEC-Q100 Grade 3 certification. The /NOPB suffix indicates commercial-grade packaging - suitable for industrial and portable equipment but not safety-critical automotive ECUs.
LM4040BIM7-4.1/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:
- Obsolete
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- 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:
- 73 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
LM4040BIM7-4.1/NOPB FAQ
1.How can I place an order for LM4040BIM7-4.1/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040BIM7-4.1/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 LM4040BIM7-4.1/NOPB reliable?
The price and inventory of LM4040BIM7-4.1/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4040BIM7-4.1/NOPB is usually 5 days.
3.What payment methods are accepted for LM4040BIM7-4.1/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040BIM7-4.1/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040BIM7-4.1/NOPB?
LM4040BIM7-4.1/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040BIM7-4.1/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 LM4040BIM7-4.1/NOPB?
For technical support, including LM4040BIM7-4.1/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040BIM7-4.1/NOPB requirements.
6.How does Aetrix verify that LM4040BIM7-4.1/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4040BIM7-4.1/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 LM4040BIM7-4.1/NOPB meets industry standards.
7.What is the process for return or replacement of LM4040BIM7-4.1/NOPB?
All LM4040BIM7-4.1/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4040BIM7-4.1/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 LM4040BIM7-4.1/NOPB part is unused and in its original packaging.
Return procedure for LM4040BIM7-4.1/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4040BIM7-4.1/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…
