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Texas Instruments LM4132BMF-3.3/NOPB
- Part No.:
- LM4132BMF-3.3/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132BMF-3.3/NOPB.pdf
- Description:
- IC VREF SERIES 0.1% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,689
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Product details
Overview
LM4132BMF-3.3/NOPB from Texas Instruments is a precision low-dropout series voltage reference IC delivering 3.3 V output with 0.1% initial accuracy, 10 ppm/°C temperature coefficient (0°C to 85°C), and 60 µA quiescent current - used in high-resolution ADCs, portable instrumentation, and battery-powered test equipment requiring stable excitation or calibration references.
For engineers reviewing the LM4132BMF-3.3/NOPB datasheet, LM4132BMF-3.3/NOPB pinout, LM4132BMF-3.3/NOPB application, or LM4132BMF-3.3/NOPB equivalent, this page provides verified electrical specs, SOT-23-5 package details, enable-controlled shutdown functionality, and validated alternative options for precision analog signal chains.
Technical Context
The LM4132BMF-3.3/NOPB implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed reference performance in cost-effective plastic packaging. It operates as a series reference with internal pass element, eliminating need for output buffer or mandatory output capacitor.
Its enable pin supports active-high control (VIH ≥ 65% VIN) and 3 µA shutdown mode, while dropout voltage remains ≤175 mV at 10 mA load. Input range is VREF + 400 mV to 5.5 V, supporting direct use with 3.7 V Li-ion or 5 V rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±0.1% (B-grade initial accuracy at 25°C) |
| Tempco | 10 ppm/°C (0°C to 85°C), 20 ppm/°C (–40°C to 125°C) |
| Quiescent Current | 60 µA typical; enables >1-year battery life in 10-µA-systems |
| Shutdown Current | 3 µA at EN = 0 V - reduces standby power in portable devices |
| Dropout Voltage | 175 mV at 10 mA load - supports operation from 3.475 V input |
| Load Regulation | 25 ppm/mA (0–20 mA) - maintains stability under dynamic sensor bias loads |
| Output Noise | 310 µVPP (0.1 Hz to 10 Hz) - suitable for 16-bit+ data acquisition |
Pinout & Package
SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, surface-mount, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N/C | No-connect terminal; must remain floating per datasheet |
| 2 | GND | Analog ground reference; requires low-impedance PCB connection |
| 3 | EN | Active-high enable input; VIH ≥ 65% VIN activates reference output |
| 4 | VIN | Input supply pin; accepts 3.7 V to 5.5 V with ≥400 mV headroom over VREF |
| 5 | VREF | Stable 3.3 V output; capable of sourcing up to 20 mA into load |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed curvature compensation | Enables 0.1% initial accuracy and 10 ppm/°C tempco without laser trimming |
| Enable-controlled shutdown | Reduces supply current from 60 µA to 3 µA - critical for duty-cycled sensors |
| No mandatory output capacitor | Stable with ceramic COUT ≥ 1 nF; eliminates BOM cost and board space for buffer cap |
| Low-noise 0.1–10 Hz output | 310 µVPP noise floor supports 16-bit SAR ADCs without external filtering |
| Wide input voltage range | VIN = VREF + 400 mV to 5.5 V allows direct use with single-cell Li-ion or USB 5 V |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
|
Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and pressure with 16-bit ADC. IC Role / Device Role / Timing Role: Provides stable 3.3 V reference for ADC excitation and sensor bridge biasing. Use Value: 10 ppm/°C tempco and 310 µVPP noise ensure <±0.01% measurement drift across –20°C to 70°C operating range. |
Use Scenario: 4–20 mA loop-powered transmitter with HART communication in factory automation. IC Role / Device Role / Timing Role: Supplies precision reference for DAC and current-sense amplifier calibration. Use Value: 0.1% initial accuracy and 25 ppm/mA load regulation maintain loop accuracy despite varying supply and load conditions. |
| Handheld Test Meters | Medical Vital Sign Monitors |
|
Use Scenario: Portable multimeter with auto-ranging and true RMS conversion. IC Role / Device Role / Timing Role: Reference source for dual-slope integrator and gain-setting DACs. Use Value: 175 mV dropout enables operation from depleting alkaline cells down to 3.475 V while maintaining 3.3 V output stability. |
Use Scenario: Portable ECG/SpO₂ monitor requiring FDA-compliant analog front-end accuracy. IC Role / Device Role / Timing Role: Precision voltage reference for analog signal conditioning and ADC reference rail. Use Value: Long-term stability of 50 ppm/1000 hrs and thermal hysteresis ≤75 ppm ensure clinical-grade repeatability over device lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3333AIDBVR | Fixed 3.3 V, 30 ppm/°C max tempco, 6 µA IQ, no enable pin | Lacks shutdown control; lower power but no active enable for intermittent operation | Preferred when ultra-low IQ dominates over enable flexibility and tempco |
| ADR3433ARJZ-R7 | 3.3 V, 10 ppm/°C max tempco, 120 µA IQ, no enable, ±0.1% initial accuracy | Higher quiescent current; requires external enable circuitry if shutdown needed | Chosen when AEC-Q100 qualification is not required and higher supply current is acceptable |
Compared with REF3333AIDBVR and ADR3433ARJZ-R7, the LM4132BMF-3.3/NOPB uniquely combines 0.1% accuracy, 10 ppm/°C tempco, 60 µA IQ, and integrated enable - making it optimal for battery-powered instruments needing both precision and controllable power states without added components.
Availability
LM4132BMF-3.3/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, and medical vital sign monitors requiring stable component supply with guaranteed long-term availability and traceable lot control.
Supply support for LM4132BMF-3.3/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-qualified components.
The LM4132BMF-3.3/NOPB belongs to TI's precision voltage reference product line, designed specifically for high-accuracy data acquisition, portable test equipment, and industrial sensing where low dropout, low noise, and enable-controlled power states are essential.
FAQ
What is the maximum load current supported by the LM4132BMF-3.3/NOPB?
The LM4132BMF-3.3/NOPB delivers up to 20 mA continuous output current while maintaining specified accuracy and regulation. At 10 mA load, dropout voltage is 175 mV; full 20 mA capability is validated across –40°C to 125°C ambient temperature per Electrical Characteristics Table 6.9.
Does the LM4132BMF-3.3/NOPB require an output capacitor for stability?
No, the LM4132BMF-3.3/NOPB is internally compensated and stable without an output capacitor. A 1 nF ceramic capacitor on VREF is optional for improved PSRR and noise filtering but not required for basic operation - simplifying layout and reducing BOM count.
What is the enable pin logic threshold for the LM4132BMF-3.3/NOPB?
The LM4132BMF-3.3/NOPB enable pin uses active-high logic with VIH ≥ 65% of VIN and VIL ≤ 35% of VIN across –40°C to 125°C. For a 5 V input, this means EN must exceed 3.25 V to activate and drop below 1.75 V to enter 3 µA shutdown mode.
Is the LM4132BMF-3.3/NOPB qualified for automotive applications?
No - the LM4132BMF-3.3/NOPB is the commercial-grade variant. Automotive qualification is reserved for the LM4132-Q1 family (e.g., LM4132C33QDBVRQ1), which meets AEC-Q100 Grade 1 (–40°C to +125°C) and includes enhanced ESD and reliability testing.
How does the LM4132BMF-3.3/NOPB achieve 0.1% initial accuracy without laser trimming?
The LM4132BMF-3.3/NOPB uses on-chip EEPROM registers to store correction coefficients for curvature, temperature coefficient, and absolute voltage offset - applied during power-up to a CMOS band-gap core. This post-assembly calibration compensates for plastic-package-induced shifts, achieving laser-trimmed performance at CMOS cost.
LM4132BMF-3.3/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):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 310µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.7V ~ 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-3.3/NOPB FAQ
1.How can I place an order for LM4132BMF-3.3/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132BMF-3.3/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-3.3/NOPB reliable?
The price and inventory of LM4132BMF-3.3/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-3.3/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132BMF-3.3/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132BMF-3.3/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132BMF-3.3/NOPB?
LM4132BMF-3.3/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132BMF-3.3/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-3.3/NOPB?
For technical support, including LM4132BMF-3.3/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132BMF-3.3/NOPB requirements.
6.How does Aetrix verify that LM4132BMF-3.3/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132BMF-3.3/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-3.3/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132BMF-3.3/NOPB?
All LM4132BMF-3.3/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132BMF-3.3/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-3.3/NOPB part is unused and in its original packaging.
Return procedure for LM4132BMF-3.3/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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