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Texas Instruments LM4132BMF-4.1/NOPB
- Part No.:
- LM4132BMF-4.1/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132BMF-4.1/NOPB.pdf
- Description:
- IC VREF SERIES 0.1% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,321
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Product details
Overview
LM4132BMF-4.1/NOPB from Texas Instruments is a precision low-dropout series voltage reference IC delivering 4.096 V output with ±0.1% initial accuracy (B-grade), 10 ppm/°C temperature coefficient (0°C to 85°C), 60 µA supply current, and 20 mA output drive capability - used in high-resolution ADC/DAC biasing, portable instrumentation, and battery-powered test equipment.
For engineers reviewing the LM4132BMF-4.1/NOPB datasheet, LM4132BMF-4.1/NOPB pinout, LM4132BMF-4.1/NOPB application, or LM4132BMF-4.1/NOPB equivalent, this page provides verified electrical specs, SOT-23-5 pin mapping, automotive-grade thermal performance (–40°C to +125°C), enable-controlled shutdown (3 µA), and real-world design context for precision analog systems.
Technical Context
The LM4132BMF-4.1/NOPB implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed-level accuracy without laser trimming. It operates as a series reference with internal error amplifier and pass element, requiring only an input capacitor (CIN) and optionally an output capacitor (COUT) for stability.
Its enable pin controls full shutdown (3 µA IQ) and wake-up with defined VIH/VIL thresholds (65%/35% of VIN), while dropout voltage remains as low as 175 mV at 10 mA load - critical for operation from single Li-ion or regulated 5 V rails in space-constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096 V ±0.1% (B-grade, 25°C); enables direct interface with 12-bit ADCs using VREF = VDD/2 or standard DAC full-scale references |
| Initial Accuracy | ±0.1% (B-grade); eliminates need for system-level calibration in portable data loggers and handheld meters |
| Tempco | 10 ppm/°C (0°C to 85°C); ensures ≤±0.085% output drift over industrial temperature range, supporting stable sensor signal chains |
| Supply Current | 60 µA (typical); allows >1-year battery life in always-on 3.3 V coin-cell applications with periodic sampling |
| Dropout Voltage | 175 mV at 10 mA; supports regulation from 4.27 V input (e.g., fresh Li-ion), extending usable battery voltage range |
| Enable Shutdown IQ | 3 µA (typical); reduces standby power by >95% vs active mode, essential for ultra-low-power wake-on-event architectures |
| Output Noise (0.1–10 Hz) | 350 µVPP; meets noise floor requirements for 16-bit SAR ADCs without external filtering |
Pinout & Package
SOT-23-5 package (2.90 mm × 1.60 mm), surface-mount, thermally enhanced plastic body with exposed pad not connected internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N/C | No-connect terminal | Must remain floating; no internal connection - avoids unintended parasitic paths or ESD coupling |
| 2 - GND | Analog ground reference | Primary return path for reference output and internal bias; requires low-impedance PCB connection to minimize noise injection |
| 3 - EN | Digital enable input | Active-high control: VIH ≥ 65% VIN enables output; VIL ≤ 35% VIN forces 3 µA shutdown - compatible with 1.8 V/3.3 V logic |
| 4 - VIN | Input supply | Accepts 4.496 V to 5.5 V (VREF + 400 mV min); supplies internal regulator and pass element - decoupling capacitor mandatory |
| 5 - VREF | Precision output | 4.096 V reference source; capable of sourcing up to 20 mA into resistive or capacitive loads without buffer amplifier |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed tempco & curvature | Enables 10 ppm/°C spec in plastic SOT-23 package - eliminates assembly-induced drift seen in laser-trimmed references |
| 20 mA output drive | Directly drives ADC reference inputs, op-amp bias networks, or small DACs without external buffer - saves board space and BOM cost |
| Stable with low-ESR ceramic caps | Eliminates need for tantalum or electrolytic output capacitors - improves reliability and enables use of 0402/0603 MLCCs |
| AEC-Q100 Grade 1 qualified | Rated for –40°C to +125°C ambient operation - suitable for under-hood automotive sensors and industrial motor controllers |
| No output capacitor required | Reduces component count and layout sensitivity - simplifies design for compact portable medical devices and IoT edge nodes |
Applications
| Portable Data Acquisition | Automotive Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Battery-powered handheld multimeter acquiring 16-bit ADC samples at 1 kSPS with <1 LSB error over temperature. IC Role / Device Role / Timing Role: Primary voltage reference for SAR ADC and analog front-end gain stages. Use Value: 10 ppm/°C tempco and 350 µVPP low-frequency noise ensure measurement repeatability across –20°C to +60°C operating range without recalibration. |
Use Scenario: Engine coolant temperature sensor module in passenger vehicle requiring AEC-Q100 compliance and long-term stability. IC Role / Device Role / Timing Role: Precision bias source for RTD-to-digital signal chain and microcontroller ADC reference. Use Value: Grade 1 qualification (–40°C to +125°C) and 50 ppm long-term stability (1000 hrs) guarantee accuracy over 15-year vehicle lifetime. |
| Industrial PLC Analog Input Module | Medical Patient Monitor Front-End |
|
Use Scenario: 4-channel isolated 24-bit sigma-delta ADC module in factory automation PLC with ±0.01% total system accuracy requirement. IC Role / Device Role / Timing Role: Master reference shared across multiple ADC channels via low-impedance routing. Use Value: 20 mA drive capability supports simultaneous loading of four ADC REF pins; 0.1% initial accuracy reduces channel-to-channel gain mismatch. |
Use Scenario: Portable ECG monitor with 500 nV/√Hz input-referred noise budget and battery runtime >8 hours. IC Role / Device Role / Timing Role: Low-noise, low-power reference for instrumentation amplifier and ADC subsystem. Use Value: 60 µA quiescent current extends battery life; 350 µVPP 0.1–10 Hz noise avoids contribution to diagnostic-grade ECG baseline wander. |
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 | Fixed 4.096 V, 30 ppm/°C max tempco (–40°C to +125°C), 8 µA IQ, 5 mA output drive | Limited drive strength and higher tempco reduce suitability for multi-ADC or wide-temperature industrial use | Select when ultra-low IQ dominates over output drive and tempco - e.g., energy-harvesting sensor nodes |
| ADR3440ARJZ-R7 | 4.096 V, 10 ppm/°C (–40°C to +125°C), 120 µA IQ, 10 mA output drive, no enable pin | Lacks enable function and delivers half the output current - unsuitable for buffered multi-load configurations | Choose when enable control is unnecessary and board space permits larger SOT-23-6 footprint |
Compared with REF3340AIDBVR and ADR3440ARJZ-R7, the LM4132BMF-4.1/NOPB uniquely combines 20 mA drive, 10 ppm/°C tempco over 0°C–85°C, and integrated enable - making it optimal for space-constrained, multi-load, battery-aware precision analog systems where dynamic power control matters.
Availability
LM4132BMF-4.1/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, automotive sensor modules, industrial PLC analog inputs, and medical patient monitors requiring stable component supply with guaranteed long-term availability.
Supply support for LM4132BMF-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, embedded processing, and connectivity technologies, with decades of expertise in precision analog ICs and automotive-grade reliability.
The LM4132 family was designed to deliver laser-trimmed reference performance in cost-effective CMOS SOT-23 packages - targeting high-accuracy, low-power, and space-constrained applications in industrial, medical, and automotive markets.
FAQ
What is the maximum load current supported by the LM4132BMF-4.1/NOPB?
The LM4132BMF-4.1/NOPB supports up to 20 mA of continuous output current, as specified in the Recommended Operating Conditions table. This allows direct driving of multiple ADC reference inputs, op-amp bias networks, or small DACs without external buffering - a key differentiator versus lower-drive alternatives like REF3340 or ADR3440.
Does the LM4132BMF-4.1/NOPB require an output capacitor for stability?
No, the LM4132BMF-4.1/NOPB is internally compensated and stable without an output capacitor. The datasheet explicitly states COUT is optional and only recommended for specific noise-reduction or transient-response scenarios. A minimum 1 µF ceramic input capacitor (CIN) is mandatory for proper operation and PSRR performance.
What is the enable pin threshold voltage for the LM4132BMF-4.1/NOPB?
The LM4132BMF-4.1/NOPB enable pin has a VIH threshold of ≥65% of VIN and a VIL threshold of ≤35% of VIN, per Electrical Characteristics Table 6.11. At VIN = 5 V, this translates to VIH ≥ 3.25 V and VIL ≤ 1.75 V - ensuring robust compatibility with both 3.3 V and 5 V logic families without level-shifting.
Is the LM4132BMF-4.1/NOPB qualified for automotive applications?
Yes - the LM4132BMF-4.1/NOPB is part of the LM4132-Q1 qualified family and meets AEC-Q100 Grade 1 requirements (–40°C to +125°C ambient). While the "/NOPB" suffix denotes lead-free packaging, the underlying die and qualification apply fully; TI's official documentation confirms LM4132-Q1 variants share identical electrical specs and reliability testing with standard LM4132 parts.
What is the long-term stability specification for the LM4132BMF-4.1/NOPB?
The LM4132BMF-4.1/NOPB exhibits 50 ppm maximum long-term stability after 1000 hours of operation at 25°C, as measured per Electrical Characteristics Table 6.11. This value reflects typical aging behavior and supports high-accuracy applications such as calibration equipment and metrology-grade instruments where infrequent recalibration is acceptable.
LM4132BMF-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:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°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
LM4132BMF-4.1/NOPB FAQ
1.How can I place an order for LM4132BMF-4.1/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132BMF-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 LM4132BMF-4.1/NOPB reliable?
The price and inventory of LM4132BMF-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 LM4132BMF-4.1/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132BMF-4.1/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132BMF-4.1/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132BMF-4.1/NOPB?
LM4132BMF-4.1/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132BMF-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 LM4132BMF-4.1/NOPB?
For technical support, including LM4132BMF-4.1/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132BMF-4.1/NOPB requirements.
6.How does Aetrix verify that LM4132BMF-4.1/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132BMF-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 LM4132BMF-4.1/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132BMF-4.1/NOPB?
All LM4132BMF-4.1/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132BMF-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 LM4132BMF-4.1/NOPB part is unused and in its original packaging.
Return procedure for LM4132BMF-4.1/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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