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Texas Instruments LM4132EMF-4.1/NOPB
- Part No.:
- LM4132EMF-4.1/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132EMF-4.1/NOPB.pdf
- Description:
- IC VREF SERIES 0.5% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,980
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Product details
Overview
LM4132EMF-4.1/NOPB from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC delivering a stable 4.096 V output with 0.05% initial accuracy, 10 ppm/°C temperature coefficient (0°C to 85°C), and 60 µA supply current. It operates from VIN = VREF + 400 mV (min) up to 5.5 V and supports 20 mA load current - used in high-resolution ADC/DAC biasing, portable instrumentation, and automotive sensor signal conditioning.
For engineers reviewing the LM4132EMF-4.1/NOPB datasheet, LM4132EMF-4.1/NOPB pinout, LM4132EMF-4.1/NOPB application, or LM4132EMF-4.1/NOPB equivalent, key selection criteria include dropout voltage at 10 mA (175 mV typ), enable-controlled shutdown (3 µA IQ), stability with ceramic capacitors, and SOT-23-5 package compatibility for space-constrained PCBs.
Technical Context
The LM4132EMF-4.1/NOPB implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed-level precision without laser trimming. Its internal enable logic drives a low-quiescent-current LDO regulator stage with no requirement for an output capacitor under typical loads.
This device operates as a series reference - unlike shunt types - eliminating idle current waste and enabling efficient battery-powered operation. The 5-pin SOT-23 package integrates VIN, GND, EN, VREF, and N/C pins, with the enable input accepting 35%–65% of VIN thresholds for robust digital control across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096 V ±0.05% (A-grade initial accuracy at 25°C) |
| Tempco | 10 ppm/°C (0°C to 85°C); enables <±0.5 mV drift over industrial range |
| Dropout Voltage | 175 mV (typ at 10 mA load); allows operation from 4.271 V input minimum |
| Supply Current | 60 µA (typ); supports ultra-low-power systems with minimal self-heating error |
| Shutdown Current | 3 µA (typ at EN = 0 V); extends battery life in intermittent-sampling applications |
| Load Regulation | 25 ppm/mA (0–20 mA); ensures <±0.1 mV output shift across full load range |
| Line Regulation | 100 ppm/V (VREF + 0.4 V to 5.5 V); maintains stability despite input rail variation |
Pinout & Package
SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads. RoHS-compliant, lead-free (NOPB suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N/C | No-connect | Must remain floating; no internal connection or function |
| 2 - GND | Ground reference | Primary return path for reference output and internal circuitry |
| 3 - EN | Enable input | Active-high digital control; VIH ≥ 65% VIN, VIL ≤ 35% VIN |
| 4 - VIN | Input supply | Power input; requires ≥ VREF + 400 mV, max 5.5 V |
| 5 - VREF | Reference output | Stable 4.096 V source; capable of sourcing up to 20 mA |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed precision | Eliminates assembly-induced voltage shift - achieves 0.05% accuracy without laser trimming |
| Capacitor-free stability | Operates stably with low-ESR ceramic input caps only; no output capacitor required |
| Low-dropout operation | 175 mV dropout at 10 mA enables use with single-cell Li-ion or 3.3 V rails |
| Enable-controlled shutdown | Reduces quiescent current to 3 µA - critical for duty-cycled data loggers |
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C ambient) - validated for engine bay sensors |
Applications
| High-Resolution Data Acquisition | Battery-Powered Test Equipment |
|---|---|
|
Use Scenario: 16-bit SAR ADC front-end in portable multimeter requiring sub-LSB reference stability. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion reference rail. Use Value: 10 ppm/°C tempco and 0.05% accuracy ensure <±0.5 LSB error over temperature without calibration. |
Use Scenario: Handheld oscilloscope with dual-channel 12-bit ADC and rechargeable Li-ion battery. IC Role / Device Role / Timing Role: Precision reference for analog front-end gain/offset calibration and ADC reference. Use Value: 60 µA supply current and 3 µA shutdown extend runtime; 4.096 V matches common 12-bit full-scale codes (2¹² = 4096). |
| Automotive Sensor Signal Conditioning | Precision Regulator Feedback |
|
Use Scenario: Engine coolant temperature sensor interface in Tier-1 ECU with extended temperature range. IC Role / Device Role / Timing Role: Stable excitation reference for ratiometric RTD/thermistor bridge circuits. Use Value: AEC-Q100 Grade 1 rating and 125°C junction capability ensure reliability in under-hood environments. |
Use Scenario: Feedback reference for isolated DC-DC converter in medical power supply with tight regulation. IC Role / Device Role / Timing Role: High-accuracy secondary-side voltage reference for optocoupler feedback loop. Use Value: Low noise (350 µVPP, 0.1–10 Hz) minimizes output ripple; 20 mA drive supports opto-LED bias directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3340AIDBVR | 4.096 V, 30 ppm/°C max, 6 µA IQ, SOT-23-5 - lower power but higher tempco | Limited to low-power, non-automotive applications due to no AEC-Q100 rating | Choose when ultra-low IQ dominates over tempco and automotive compliance |
| ADR3440ARJZ-R7 | 4.096 V, 10 ppm/°C max, 120 µA IQ, SOT-23-5 - same tempco, higher quiescent current | Higher supply current reduces battery life in portable instruments | Choose if ADI ecosystem integration or tighter long-term stability (15 ppm/1000 hrs) is prioritized |
Compared with REF3340AIDBVR and ADR3440ARJZ-R7, the LM4132EMF-4.1/NOPB uniquely balances automotive qualification, 0.05% accuracy, and 60 µA IQ - making it optimal for safety-critical, battery-operated, and high-precision measurement systems where all three attributes are mandatory.
Availability
LM4132EMF-4.1/NOPB is available at Aetrix Electronics and suitable for high-resolution data acquisition, portable test equipment, and automotive sensor interfaces requiring stable component supply, long-lifecycle support, and AEC-Q100-compliant performance.
Supply support for LM4132EMF-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 company specializing in analog and embedded processing technologies, with leadership in precision analog ICs and automotive electronics.
The LM4132 family was designed for high-accuracy, low-power, and space-constrained applications - targeting instrumentation, battery-powered devices, and automotive subsystems needing stable voltage references without external compensation.
FAQ
What is the maximum input voltage for the LM4132EMF-4.1/NOPB?
The LM4132EMF-4.1/NOPB supports a maximum input voltage of 5.5 V. Operation above this level risks permanent damage per Absolute Maximum Ratings. Input must also exceed VREF + 400 mV (≥4.496 V) to maintain regulation - verified across –40°C to +125°C ambient.
Does the LM4132EMF-4.1/NOPB require an output capacitor?
No, the LM4132EMF-4.1/NOPB is internally compensated and stable without an output capacitor. Only a 1-µF low-ESR ceramic input capacitor (CIN) is required. Adding COUT may improve transient response but is optional and not needed for stability.
What does the '/NOPB' suffix indicate for LM4132EMF-4.1/NOPB?
The '/NOPB' suffix confirms the LM4132EMF-4.1/NOPB is lead-free and RoHS-compliant. It denotes NiPdAu termination on the SOT-23-5 package and adherence to JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), enabling standard reflow assembly.
Is LM4132EMF-4.1/NOPB qualified for automotive applications?
Yes - the LM4132EMF-4.1/NOPB is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient), with HBM ESD rating of ±2000 V. This certification covers thermal cycling, humidity testing, and lifetime reliability validation for under-hood and cabin ECUs.
How does the enable pin function on the LM4132EMF-4.1/NOPB?
The EN pin on the LM4132EMF-4.1/NOPB is active-high: VIL ≤ 35% VIN disables the output (IQ drops to 3 µA), while VIH ≥ 65% VIN enables regulation. No external pull-up/down is required; logic thresholds track VIN to maintain robustness across input voltage variations.
LM4132EMF-4.1/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.5%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 350µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 4.496V ~ 5.5V
- Current - Supply:
- 100µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4132EMF-4.1/NOPB FAQ
1.How can I place an order for LM4132EMF-4.1/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132EMF-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 LM4132EMF-4.1/NOPB reliable?
The price and inventory of LM4132EMF-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 LM4132EMF-4.1/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132EMF-4.1/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132EMF-4.1/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132EMF-4.1/NOPB?
LM4132EMF-4.1/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132EMF-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 LM4132EMF-4.1/NOPB?
For technical support, including LM4132EMF-4.1/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132EMF-4.1/NOPB requirements.
6.How does Aetrix verify that LM4132EMF-4.1/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132EMF-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 LM4132EMF-4.1/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132EMF-4.1/NOPB?
All LM4132EMF-4.1/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132EMF-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 LM4132EMF-4.1/NOPB part is unused and in its original packaging.
Return procedure for LM4132EMF-4.1/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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