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Texas Instruments LM4132CMF-3.0/NOPB
- Part No.:
- LM4132CMF-3.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132CMF-3.0/NOPB.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,190
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Product details
Overview
LM4132CMF-3.0/NOPB from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC delivering a stable 3.0 V output with 0.2% initial accuracy, 10 ppm/°C temperature coefficient (0°C to 85°C), and 60 µA quiescent current - used in high-resolution ADC/DAC biasing, portable instrumentation, and automotive sensor signal conditioning.
For engineers reviewing the LM4132CMF-3.0/NOPB datasheet, LM4132CMF-3.0/NOPB pinout, LM4132CMF-3.0/NOPB application, or LM4132CMF-3.0/NOPB equivalent, this page provides verified package mapping (SOT-23-5), enable-controlled shutdown (3 µA), dropout voltage (175 mV at 10 mA), noise performance (285 µVPP, 0.1–10 Hz), and validated alternative options for precision reference design.
Technical Context
The LM4132CMF-3.0/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 enable logic, supporting direct connection to ADC reference inputs without buffering.
It requires only an input capacitor (CIN) and tolerates low-ESR ceramic capacitors; no output capacitor (COUT) is mandatory. Its 400 mV minimum input-to-output differential supports operation down to VIN = 3.4 V at full load, making it suitable for single-cell Li-ion and 3.3 V rail-sourced systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±0.2% (C-grade, 25°C); enables accurate 12-bit+ ADC full-scale calibration |
| Initial Accuracy | ±0.2% (C grade); eliminates need for system-level trimming in industrial sensors |
| Tempco | 10 ppm/°C (0°C to 85°C); ensures ≤0.25% drift over commercial temperature range |
| Quiescent Current | 60 µA typical; supports >1-year battery life in always-on portable meters |
| Dropout Voltage | 175 mV at 10 mA load; allows operation from 3.3 V supply with 150 mV headroom |
| Enable Shutdown Current | 3 µA max; reduces standby power in wake-on-event sensor nodes |
| Output Noise | 285 µVPP (0.1–10 Hz); meets SNR requirements for 16-bit SAR ADCs |
Pinout & Package
SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N/C | No-connect | Must be left floating; not internally bonded |
| 2 - GND | Ground reference | Primary return path for reference and enable circuitry; requires low-impedance PCB connection |
| 3 - EN | Enable input | Active-high logic control; VIH ≥65% VIN, VIL ≤35% VIN; enables fast turn-on/turn-off sequencing |
| 4 - VIN | Input supply | Accepts 3.4 V to 5.5 V; must be bypassed with ≥1 µF ceramic capacitor near pin |
| 5 - VREF | Precision output | 3.0 V reference source; drives up to 20 mA; connects directly to ADC REF+ or DAC VREF pins |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed curvature compensation | Eliminates external calibration across temperature; achieves 10 ppm/°C tempco without laser trimming |
| Enable pin with hysteresis | Ensures clean power-up/power-down transitions; prevents oscillation during slow-rising supply rails |
| Stable with ceramic capacitors only | Removes need for tantalum or electrolytic output caps; reduces BOM count and board area |
| 20 mA output drive capability | Directly powers ADC reference inputs and small analog front-ends without buffer op-amps |
| Low long-term drift | 50 ppm max change over 1000 hours; maintains calibration integrity in unattended field instruments |
Applications
| Portable Data Loggers | Automotive Cabin Sensors |
|---|---|
Use Scenario: Battery-powered environmental monitors logging temperature, humidity, and pressure at 1-second intervals for 2+ years. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for 16-bit sigma-delta ADC measuring sensor bridge outputs. Use Value: 60 µA quiescent current and 3 µA shutdown extend coin-cell life; 10 ppm/°C tempco ensures <0.1% measurement error across –25°C to +70°C cabin range. |
Use Scenario: Occupancy detection using MEMS accelerometers and IR proximity sensors in HVAC control modules. IC Role / Device Role / Timing Role: Supplies precision bias to analog signal chains feeding ASIL-B compliant microcontroller ADCs. Use Value: AEC-Q100 Grade 1 qualification (–40°C to +125°C) and 0.2% initial accuracy meet automotive functional safety requirements without derating. |
| Industrial Process Transmitters | Medical Patient Monitoring |
Use Scenario: 4–20 mA loop-powered pressure transmitters with HART digital overlay in chemical plants. IC Role / Device Role / Timing Role: Generates 3.0 V reference for ratiometric bridge excitation and ADC conversion in ultra-low-power loop design. Use Value: 175 mV dropout enables operation from 3.3 V loop supply; 285 µVPP noise ensures <120 dB SNR in 24-bit delta-sigma measurements. |
Use Scenario: Portable ECG and pulse oximetry devices requiring FDA-cleared analog front-end accuracy. IC Role / Device Role / Timing Role: Serves as primary voltage reference for medical-grade ADCs digitizing biopotential signals. Use Value: Thermal hysteresis ≤75 ppm and long-term stability ≤50 ppm/1000 hrs support clinical-grade repeatability and regulatory traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | Fixed 3.0 V, 50 ppm/°C max tempco, 50 µA IQ, no enable pin, SOT-23-3 | Lacks shutdown control; lower drive (10 mA); simpler layout but less flexible power sequencing | Choose when minimal footprint and cost priority outweigh enable functionality and 20 mA drive |
| ADR3430ARJZ-R7 | 3.0 V, 10 ppm/°C max tempco, 120 µA IQ, no enable, SOT-23-5, higher noise (45 µVRMS) | Higher quiescent current limits battery life; no shutdown mode; requires external decoupling optimization | Prefer when ultra-low tempco is critical and system power budget permits higher IQ |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the LM4132CMF-3.0/NOPB uniquely combines enable control, 20 mA drive, and 10 ppm/°C tempco in a 5-pin SOT-23 - enabling compact, low-power, and functionally complete reference subsystems without external components.
Availability
LM4132CMF-3.0/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, automotive cabin sensors, and industrial process transmitters requiring stable component supply with guaranteed long-term manufacturability.
Supply support for LM4132CMF-3.0/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 LM4132 family was designed for high-accuracy, low-power reference needs in space-constrained and battery-operated systems - targeting instrumentation, automotive sensing, and industrial data acquisition where laser-trimmed performance is required at CMOS cost.
FAQ
What is the maximum load current supported by the LM4132CMF-3.0/NOPB?
The LM4132CMF-3.0/NOPB delivers up to 20 mA of output current while maintaining 3.0 V regulation within specification. This allows direct driving of ADC reference inputs, op-amp bias networks, and small analog circuits without external buffers - a key advantage over shunt references and many competing series references.
Does the LM4132CMF-3.0/NOPB require an output capacitor for stability?
No, the LM4132CMF-3.0/NOPB is internally compensated and stable with no output capacitor required. A 0.1 µF ceramic capacitor on the VIN pin is mandatory; COUT is optional and only recommended if additional noise filtering is needed for sensitive ADC applications - unlike most LDO references, it does not rely on COUT for phase margin.
What is the enable pin threshold voltage for the LM4132CMF-3.0/NOPB?
The LM4132CMF-3.0/NOPB enable pin has guaranteed thresholds: VIL ≤35% of VIN (low) and VIH ≥65% of VIN (high), with built-in hysteresis to prevent chatter during slow-rising supplies. At VIN = 5 V, this translates to VIL ≤1.75 V and VIH ≥3.25 V - compatible with standard 3.3 V GPIOs and microcontroller I/Os.
Is the LM4132CMF-3.0/NOPB qualified for automotive applications?
The LM4132CMF-3.0/NOPB is not the automotive-grade variant; it is the commercial-grade part. For automotive use, TI offers the LM4132QDBVR (LM4132-Q1), which is AEC-Q100 Grade 1 qualified (–40°C to +125°C). The LM4132CMF-3.0/NOPB is rated for –40°C to +125°C junction temperature but lacks AEC-Q100 certification and automotive-specific test reporting.
How does the LM4132CMF-3.0/NOPB achieve 10 ppm/°C tempco without laser trimming?
The LM4132CMF-3.0/NOPB uses EEPROM-programmable correction registers to adjust curvature and temperature coefficient post-assembly, compensating for plastic-package-induced shifts that degrade laser-trimmed die accuracy. This CMOS-based approach delivers laser-trimmed performance at lower cost and with higher yield than traditional bipolar references.
LM4132CMF-3.0/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):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 285µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.4V ~ 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
LM4132CMF-3.0/NOPB FAQ
1.How can I place an order for LM4132CMF-3.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132CMF-3.0/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 LM4132CMF-3.0/NOPB reliable?
The price and inventory of LM4132CMF-3.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132CMF-3.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132CMF-3.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132CMF-3.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132CMF-3.0/NOPB?
LM4132CMF-3.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132CMF-3.0/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 LM4132CMF-3.0/NOPB?
For technical support, including LM4132CMF-3.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132CMF-3.0/NOPB requirements.
6.How does Aetrix verify that LM4132CMF-3.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132CMF-3.0/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 LM4132CMF-3.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132CMF-3.0/NOPB?
All LM4132CMF-3.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132CMF-3.0/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 LM4132CMF-3.0/NOPB part is unused and in its original packaging.
Return procedure for LM4132CMF-3.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132CMF-3.0/NOPB Tags
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