My Inquiry
My Account
Texas Instruments LM4041CIM7X-1.2
- Part No.:
- LM4041CIM7X-1.2
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4041CIM7X-1.2.pdf
- Description:
- IC VREF SHUNT 0.5% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,174
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4041CIM7X-1.2 from Texas Instruments is a precision micropower shunt voltage reference in SC70-5 package, delivering a fixed 1.225 V reverse breakdown voltage with ±0.5% initial tolerance at 25°C, 100 ppm/°C max temperature coefficient, and stable operation from 60 μA to 12 mA - used for ADC/DAC biasing and sensor excitation in portable instrumentation.
For engineers reviewing the LM4041CIM7X-1.2 datasheet, LM4041CIM7X-1.2 pinout, LM4041CIM7X-1.2 application, or LM4041CIM7X-1.2 equivalent, key selection criteria include industrial temperature range (−40°C to +85°C), no-output-capacitor requirement, low 20 μVrms noise (10 Hz–10 kHz), and SC70 package compatibility with high-density PCB layouts.
Technical Context
The LM4041CIM7X-1.2 employs bandgap reference architecture with curvature-corrected temperature drift compensation and Zener-zap wafer-level trimming to achieve ±0.5% initial accuracy. Its shunt topology operates by sinking current through the cathode to maintain precise 1.225 V across external load resistors.
It requires no output capacitor and remains stable with any capacitive load up to 10 nF, enabled by low dynamic impedance (≤1.5 Ω at 1 mA) and optimized internal compensation - eliminating external stability components in space-constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.225 V nominal; enables direct biasing of 12-bit ADCs requiring ≤1 LSB error at 3.3 V full-scale |
| Initial Tolerance | ±0.5% at 25°C; ensures ≤6.1 mV absolute error without calibration in production test fixtures |
| Temp Coefficient | ≤100 ppm/°C; contributes ≤8.5 mV drift over −40°C to +85°C ambient, critical for field-deployed sensors |
| Operating Current | 60–12,000 μA; supports ultra-low-power sleep modes (60 μA) and fast wake-up regulation (12 mA) |
| Noise (10 Hz–10 kHz) | 20 μVrms; limits quantization uncertainty to <0.025 LSB in 16-bit 3.3 V systems |
| Long-Term Stability | 120 ppm over 1000 hrs; guarantees ≤1.5 mV output shift during 5-year product lifecycle |
| Thermal Hysteresis | 0.08%; prevents repeatable offset errors after thermal cycling in automotive cabin modules |
Pinout & Package
LM4041CIM7X-1.2 is packaged in a 5-pin SC70 (DCK) body measuring 1.25 mm × 2.00 mm, optimized for automated placement and thermal performance in high-density layouts.
| 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 and defines 0 V reference point |
| Cathode (Pin 3) | Shunt output terminal | Sinks current to maintain 1.225 V across external load; connects to top of resistor divider or ADC REF+ input |
| FB (Pin 5) | Feedback input | Unused in fixed 1.225 V configuration; must float or tie to anode per datasheet guidance |
| NC (Pins 2, 4) | No-connect terminals | Internally unconnected; no electrical function; may be left unpopulated or grounded for mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Enables direct integration into compact battery-powered sensor nodes without stability-compromising layout constraints |
| Tolerates capacitive loads | Stable with up to 10 nF load capacitance, supporting filtering on reference outputs without oscillation risk |
| Low 20 μVrms wideband noise | Preserves signal integrity in precision data acquisition paths where SNR > 90 dB is required |
| 60 μA minimum operating current | Permits use in always-on monitoring circuits powered by coin cells or energy-harvesting sources |
| SC70-5 package | Reduces board area by 40% vs SOT-23 while maintaining thermal resistance of 265.3°C/W for reliable power dissipation |
Applications
| Portable Medical Sensors | Data Acquisition Front-Ends |
|---|---|
Use Scenario: Battery-powered ECG electrode interface conditioning analog front-end. IC Role / Device Role / Timing Role: Shunt reference providing stable 1.225 V bias for op-amp gain stages and SAR ADC reference input. Use Value: Enables 16-bit resolution with <0.05% total error budget across −20°C to +50°C operating range. | Use Scenario: Industrial 4–20 mA loop-powered transmitter with local ADC digitization. IC Role / Device Role / Timing Role: Precision voltage reference for ratiometric sensor excitation and ADC reference in isolated signal chains. Use Value: Eliminates need for external trim potentiometers due to ±0.5% initial accuracy and <10 ppm/°C effective drift. |
| Automotive Cabin Sensors | Energy Metering Modules |
Use Scenario: HVAC temperature/humidity sensing module mounted near dashboard electronics. IC Role / Device Role / Timing Role: Stable reference source for bridge sensor amplification and microcontroller ADC conversion. Use Value: Maintains <±8 mV output deviation over −40°C to +85°C ambient, meeting AEC-Q100 Grade 3 requirements. | Use Scenario: DIN-rail mounted smart electricity meter with metrology-grade ADC subsystem. IC Role / Device Role / Timing Role: Low-noise reference for polyphase energy measurement ICs requiring stable 1.2 V reference rails. Use Value: 20 μVrms noise ensures Class 0.5 accuracy compliance under IEC 62053-21 without additional filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4041DIM7X-1.2 | ±1.0% initial tolerance (vs ±0.5%); otherwise identical SC70-5 package and electrical specs | Suitable for cost-sensitive industrial controls where 12-bit ADC accuracy suffices | Select when tighter initial tolerance is unnecessary and BOM cost reduction is prioritized |
| TLVH431ACDBVR | Adjustable 1.24–18 V output; 2% initial tolerance; SOT-23-3 package; higher 80 μA min current | Used where programmable reference voltage or higher output flexibility is needed | Choose only if adjustable output or wider voltage range justifies trade-offs in accuracy and quiescent current |
Compared with LM4041DIM7X-1.2, the LM4041CIM7X-1.2 provides 2× tighter initial tolerance for high-resolution measurement systems; versus TLVH431ACDBVR, it delivers superior accuracy and lower noise but lacks output adjustability - making it optimal for fixed-voltage, low-noise, space-constrained applications.
Availability
LM4041CIM7X-1.2 is available at Aetrix Electronics and suitable for portable medical sensors, industrial data acquisition systems, automotive cabin sensors, and energy metering modules requiring stable component supply with guaranteed long-term availability.
Supply support for LM4041CIM7X-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 leader specializing in analog and embedded processing technologies, with decades of expertise in precision reference design and automotive-qualified components.
The LM4041-N family was engineered for space-constrained, battery-powered, and automotive-grade applications demanding micropower operation, high accuracy, and robust thermal performance - targeting instrumentation, sensor interfaces, and portable measurement equipment.
FAQ
What is the maximum operating temperature range for LM4041CIM7X-1.2?
The LM4041CIM7X-1.2 is rated for industrial temperature range: −40°C to +85°C ambient. This is confirmed in Section 6.3 "Recommended Operating Conditions" of the SNOS641G datasheet, where LM4041C-grade devices are explicitly specified for this range. It is not qualified for extended (−40°C to +125°C) operation like LM4041E-grade variants.
Does LM4041CIM7X-1.2 require an external output capacitor?
No, the LM4041CIM7X-1.2 does not require an external output capacitor. Its internal design ensures stability with any capacitive load, including direct connection to ADC reference inputs or op-amp feedback networks. This is stated in the "Features" section and verified in Section 9.1 "Application Information" of the SNOS641G datasheet.
What is the pin configuration of LM4041CIM7X-1.2 in the SC70-5 package?
The LM4041CIM7X-1.2 uses the DCK (SC70-5) package with pins: Pin 1 = Anode (ground), Pin 2 = NC, Pin 3 = Cathode (output), Pin 4 = NC, Pin 5 = FB (feedback). The FB pin must float or connect to anode in fixed-voltage mode. This mapping is defined in "Pin Configuration and Functions" (Section 5) of SNOS641G.
How does the 100 ppm/°C temperature coefficient impact accuracy over temperature?
With a nominal 1.225 V output and 100 ppm/°C coefficient, the LM4041CIM7X-1.2 exhibits ≤10.4 mV total drift over −40°C to +85°C (ΔT = 125°C). Combined with ±0.5% initial tolerance (±6.1 mV), worst-case total error is ±16.5 mV - sufficient for 12-bit systems (LSB = 0.8 mV at 3.3 V) and acceptable for calibrated 14-bit implementations.
Is LM4041CIM7X-1.2 automotive-qualified?
No, LM4041CIM7X-1.2 is not AEC-Q100 qualified. Only LM4041-N-Q1 variants (e.g., LM4041CQIM7X-1.2) carry Q100 Grade 3 qualification. The "C" grade in LM4041CIM7X-1.2 denotes ±0.5% initial tolerance, not automotive qualification - confirmed in Table "Device Information" and Section 1 "Features" of SNOS641G.
LM4041CIM7X-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:
- ±0.5%
- 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
LM4041CIM7X-1.2 FAQ
1.How can I place an order for LM4041CIM7X-1.2 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4041CIM7X-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 LM4041CIM7X-1.2 reliable?
The price and inventory of LM4041CIM7X-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 LM4041CIM7X-1.2 is usually 5 days.
3.What payment methods are accepted for LM4041CIM7X-1.2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4041CIM7X-1.2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4041CIM7X-1.2?
LM4041CIM7X-1.2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4041CIM7X-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 LM4041CIM7X-1.2?
For technical support, including LM4041CIM7X-1.2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4041CIM7X-1.2 requirements.
6.How does Aetrix verify that LM4041CIM7X-1.2 is sourced from the original manufacturer or authorized distributors?
All LM4041CIM7X-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 LM4041CIM7X-1.2 meets industry standards.
7.What is the process for return or replacement of LM4041CIM7X-1.2?
All LM4041CIM7X-1.2 units undergo pre-shipment inspection (PSI). If there is an issue with LM4041CIM7X-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 LM4041CIM7X-1.2 part is unused and in its original packaging.
Return procedure for LM4041CIM7X-1.2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4041CIM7X-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…
