My Inquiry
My Account
Texas Instruments LM4041BIM7-1.2
- Part No.:
- LM4041BIM7-1.2
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4041BIM7-1.2.pdf
- Description:
- IC VREF SHUNT 0.2% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,004
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4041BIM7-1.2 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 and battery-powered instrumentation.
For engineers reviewing the LM4041BIM7-1.2 datasheet, LM4041BIM7-1.2 pinout, LM4041BIM7-1.2 application, or LM4041BIM7-1.2 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 uses a bandgap-based Zener-zap trimmed shunt architecture with curvature-corrected temperature drift compensation. Its design eliminates need for output capacitor while maintaining stability across 0–10 nF capacitive loads.
It operates as a two-terminal device: cathode sinks current to establish precise 1.225 V across external load/resistor network, with anode tied to system ground. Reverse breakdown voltage is fixed-not adjustable-and specified under 100 μA test current per JEDEC-standard characterization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.225 V nominal; enables accurate 12-bit+ ADC biasing and sensor excitation in space-constrained designs |
| Initial Tolerance | ±0.2% at 25°C (B-grade); corresponds to ±2.4 mV absolute error for calibration-critical systems |
| Temp Coefficient | ≤100 ppm/°C over −40°C to +85°C; contributes ≤±8.5 mV drift across full industrial range |
| Min Operating Current | 60 μA; supports ultra-low-power wake-up circuits and energy-harvesting applications |
| Noise (10Hz–10kHz) | 20 μVRMS; ensures <0.0017% RMS noise contribution to 1.225 V reference, critical for high-resolution measurements |
| Dynamic Impedance | ≤1.5 Ω at 1 mA; maintains voltage regulation under fast load transients up to 12 mA |
| Long-Term Stability | 120 ppm after 1000 hrs; translates to ~1.5 mV drift over 10 years in continuous operation |
Pinout & Package
SOT-23-3 package (1.30 mm × 2.92 mm body size), surface-mount, thermally enhanced plastic case with standard DBZ footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Pin 1) | Shunt output terminal | Sinks current to develop 1.225 V across external resistor; connects to regulated node or ADC reference input |
| Anode (Pin 2) | Ground reference | Must be connected to system ground; serves as return path for shunt current and defines reference potential |
| NC (Pin 3) | No-connect | Internally unconnected; must float or tie to anode per TI EMI mitigation guidance |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Enables direct integration into compact PCB layouts without stability-compromising bypass components |
| Tolerates capacitive loads | Stable with 0–10 nF load capacitance-ideal for driving ADC sample-and-hold inputs directly |
| Low quiescent current | 60 μA minimum operating current allows use in always-on monitoring nodes powered by coin cells |
| AEC-Q100 Grade 3 qualified | Validated for automotive subsystems operating from −40°C to +85°C ambient, including infotainment and body control modules |
| Reverse breakdown voltage trim | Fuse and Zener-zap wafer-level trimming ensures ±0.2% initial accuracy without post-package calibration |
Applications
| Battery-Powered Equipment | Data-Acquisition Systems |
|---|---|
Use Scenario: Portable multimeter with 3.3 V supply and 16-bit SAR ADC requiring stable reference under varying battery voltage (3.0–4.2 V). IC Role / Device Role / Timing Role: Shunt reference providing 1.225 V reference voltage to ADC REF+ pin, sinking current via series resistor from battery rail. Use Value: Enables ±0.2% full-scale accuracy over battery life and temperature, eliminating need for recalibration during field use. | Use Scenario: Industrial 4–20 mA loop-powered transmitter measuring pressure with analog front-end conditioning. IC Role / Device Role / Timing Role: Precision voltage reference for DAC output scaling and sensor bridge excitation within tight power budget (<100 μA quiescent). Use Value: Delivers 20 μVRMS noise floor and <100 ppm/°C drift-meeting IEC 61000-4-3 immunity requirements for measurement integrity. |
| Instrumentation and Test Equipment | Automotive Electronics |
Use Scenario: Benchtop digital storage oscilloscope channel input stage requiring calibrated DC offset and gain references. IC Role / Device Role / Timing Role: Fixed 1.225 V reference for programmable gain amplifier (PGA) offset nulling and ADC reference buffer. Use Value: 120 ppm long-term stability ensures calibration validity over 12-month intervals without hardware intervention. | Use Scenario: Cabin temperature sensor module in HVAC control unit, operating across −40°C to +85°C ambient with 5 V supply. IC Role / Device Role / Timing Role: AEC-Q100 Grade 3 qualified shunt reference for thermistor-to-voltage conversion circuitry. Use Value: Guaranteed ±0.2% initial accuracy and ≤±10.4 mV total error over temperature meets ASAM MCD-2 MC functional safety constraints. |
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 | ±0.5% initial tolerance (C-grade), same SOT-23-3 package and 1.225 V output | Lower accuracy grade suitable for non-critical biasing where cost sensitivity outweighs precision | Select when ±0.5% tolerance satisfies system error budget and long-term drift is less constrained |
| TLVH431ACDBVR | Adjustable 1.24–18 V output via external resistors; 2% initial tolerance; higher 80 μA min current | Requires external feedback network; not drop-in compatible due to 3-pin topology and different pinout | Choose only when variable reference voltage is needed and board layout allows redesign of feedback divider |
Compared with LM4041CIM3-1.2, the LM4041BIM7-1.2 offers tighter initial accuracy (±0.2% vs ±0.5%) at identical package and thermal performance; versus TLVH431ACDBVR, it provides fixed 1.225 V output with lower noise and no external resistor dependency-critical for miniaturized, high-precision sensing nodes.
Availability
LM4041BIM7-1.2 is available at Aetrix Electronics and suitable for battery-powered equipment, data-acquisition systems, and automotive electronics requiring stable component supply with guaranteed long-term availability and traceable lot documentation.
Supply support for LM4041BIM7-1.2 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LM4041-N product line delivers micro-power, precision shunt voltage references optimized for space-constrained, low-current applications where stability, noise, and temperature performance are critical-especially in portable instrumentation and automotive subsystems.
FAQ
What is the maximum operating current for LM4041BIM7-1.2?
The LM4041BIM7-1.2 supports a maximum operating current of 12 mA. This limit ensures safe power dissipation within the SOT-23 package's 306 mW rating at 25°C ambient. Exceeding this current risks thermal overload and long-term reliability degradation. The LM4041BIM7-1.2 maintains regulation across its full 60 μA to 12 mA range, making it suitable for both ultra-low-power sleep modes and active measurement phases.
Does LM4041BIM7-1.2 require an external capacitor for stability?
No, the LM4041BIM7-1.2 does not require an external output capacitor. Its internal design provides inherent stability across capacitive loads from 0 to 10 nF-enabling direct connection to ADC reference inputs or op-amp feedback networks without added components. This feature reduces bill-of-materials count and PCB area, especially valuable in wearables and sensor nodes where space is constrained. The LM4041BIM7-1.2 achieves this through advanced bandgap core compensation and low dynamic impedance.
What temperature range is LM4041BIM7-1.2 rated for?
The LM4041BIM7-1.2 is rated for the industrial temperature range of −40°C to +85°C ambient. It is qualified to AEC-Q100 Grade 3 standards, confirming reliability in automotive cabin environments. Electrical characteristics-including ±0.2% initial tolerance, ≤100 ppm/°C temperature coefficient, and 20 μVRMS noise-are guaranteed across this full range. The LM4041BIM7-1.2 is not rated for extended −40°C to +125°C operation; that specification applies only to C/D/E-grade variants in SOT-23.
How does the pinout of LM4041BIM7-1.2 differ from the adjustable LM4041 variants?
The LM4041BIM7-1.2 uses a 3-pin SOT-23 (DBZ) package with Cathode (Pin 1), Anode (Pin 2), and NC (Pin 3). Adjustable versions like LM4041BIM3-ADJ use the same package but repurpose Pin 1 as FB (feedback) and Pin 3 as Cathode-making them electrically and functionally incompatible. The LM4041BIM7-1.2 has no feedback pin; its 1.225 V output is fixed and internally trimmed. Substituting an ADJ variant without circuit redesign will result in incorrect regulation or failure to start.
Is LM4041BIM7-1.2 RoHS compliant and lead-free?
Yes, the LM4041BIM7-1.2 is RoHS compliant and lead-free, meeting EU Directive 2011/65/EU and TI's Green Standard. The SOT-23 package uses matte tin (Sn) lead finish with no lead content exceeding 0.1% by weight. TI provides full material declarations and test reports upon request. This compliance ensures compatibility with modern reflow profiles and environmental requirements for medical, industrial, and consumer electronics-without compromising the LM4041BIM7-1.2's electrical performance or thermal reliability.
LM4041BIM7-1.2 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):
- 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 FAQ
1.How can I place an order for LM4041BIM7-1.2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4041BIM7-1.2 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 reliable?
The price and inventory of LM4041BIM7-1.2 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 is usually 5 days.
3.What payment methods are accepted for LM4041BIM7-1.2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4041BIM7-1.2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4041BIM7-1.2?
LM4041BIM7-1.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4041BIM7-1.2 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?
For technical support, including LM4041BIM7-1.2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4041BIM7-1.2 requirements.
6.How does Aetrix verify that LM4041BIM7-1.2 is sourced from the original manufacturer or authorized distributors?
All LM4041BIM7-1.2 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 meets industry standards.
7.What is the process for return or replacement of LM4041BIM7-1.2?
All LM4041BIM7-1.2 units undergo pre-shipment inspection (PSI). If there is an issue with LM4041BIM7-1.2, 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 part is unused and in its original packaging.
Return procedure for LM4041BIM7-1.2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4041BIM7-1.2 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…
