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Texas Instruments LM4132EMF-3.0
- Part No.:
- LM4132EMF-3.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132EMF-3.0.pdf
- Description:
- IC VREF SERIES 0.5% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,379
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Product details
Overview
LM4132EMF-3.0 from Texas Instruments is a precision low-dropout series voltage reference IC delivering a stable 3.0 V output with 0.05% 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 battery-powered test equipment.
For engineers reviewing the LM4132EMF-3.0 datasheet, LM4132EMF-3.0 pinout, LM4132EMF-3.0 application, or LM4132EMF-3.0 equivalent, key selection criteria include dropout voltage (175 mV at 10 mA), enable-controlled shutdown (3 µA), load regulation (25 ppm/mA), and SOT-23-5 compatibility with ceramic capacitors only.
Technical Context
The LM4132EMF-3.0 implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed-level precision without laser trimming. It operates as a series reference with internal error amplifier, pass transistor, and enable-controlled bias network.
It requires no output capacitor for stability, supports up to 20 mA output current, and achieves low-noise operation (285 µVPP, 0.1–10 Hz) while maintaining 400 mV max dropout across –40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±0.05% (A-grade initial accuracy at 25°C) |
| Tempco | 10 ppm/°C (0°C to 85°C); enables <±0.25 mV drift over industrial range |
| Dropout Voltage | 175 mV at 10 mA load; allows operation from 3.175 V input minimum |
| Quiescent Current | 60 µA typical; supports ultra-low-power systems with minimal supply overhead |
| Shutdown Current | 3 µA at EN = 0 V; enables rapid power gating in duty-cycled applications |
| Noise (0.1–10 Hz) | 285 µVPP; suitable for 16-bit+ data acquisition without external filtering |
| Load Regulation | 25 ppm/mA; ensures <±75 µV shift across full 20 mA load range |
Pinout & Package
LM4132EMF-3.0 is housed in a 5-pin SOT-23 package (2.90 mm × 1.60 mm body), with pin 1 unconnected (N/C), pin 2 grounded, pin 3 serving as active-high enable, pin 4 as VIN input, and pin 5 as VREF output.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (N/C) | No-connect terminal | Must remain floating; no PCB trace or pad connection required |
| 2 (GND) | Analog ground reference | Primary return path for reference output and internal bias; requires low-impedance connection to system AGND |
| 3 (EN) | Enable control input | Active-high logic input; VIH ≥65% of VIN enables output; VIL ≤35% disables output |
| 4 (VIN) | Input supply rail | Accepts 3.4 V to 5.5 V (VREF + 400 mV min); supplies internal regulator and pass element |
| 5 (VREF) | Precision reference output | Provides regulated 3.0 V; capable of sourcing up to 20 mA with <0.5% deviation |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed curvature compensation | Eliminates need for laser trimming; achieves 0.05% accuracy and 10 ppm/°C tempco at package level |
| Capacitor-free stability | Operates stably with only 1 µF low-ESR ceramic CIN; no COUT required for regulation |
| Low dropout with high output current | Delivers 20 mA at 175 mV dropout - exceeds shunt reference efficiency in space-constrained designs |
| Automotive-qualified variant available | LM4132-Q1 grade meets AEC-Q100 Grade 1 (–40°C to +125°C) with HBM ESD Level 2 |
| Long-term stability | 50 ppm drift over 1000 hours - critical for calibration-critical field instruments |
Applications
| Portable Data Loggers | Industrial PLC Analog Inputs |
|---|---|
Use Scenario: Battery-powered environmental sensor nodes acquiring temperature, pressure, and humidity with 16-bit SAR ADCs. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for ADC VREF pin and signal-chain biasing. Use Value: Enables ±0.5 LSB accuracy over –20°C to +70°C ambient with no recalibration due to 10 ppm/°C tempco and 50 ppm long-term drift. | Use Scenario: Modular I/O modules in programmable logic controllers requiring precise analog input scaling. IC Role / Device Role / Timing Role: Supplies calibrated reference for 24-bit delta-sigma ADC front-ends and isolated DAC outputs. Use Value: Maintains <±1.5 mV total error (initial + tempco + load + line) across 4–20 mA loop-powered operation with 3.4–5.5 V input range. |
| Handheld Test Meters | Battery Management Systems |
Use Scenario: Portable multimeters and LCR meters performing DC voltage/current measurements with auto-ranging. IC Role / Device Role / Timing Role: Serves as primary reference for dual-slope integrator and autoranging gain stages. Use Value: Delivers 285 µVPP low-frequency noise and 0.05% initial accuracy - directly enabling 4½-digit resolution without post-calibration. | Use Scenario: Cell voltage monitoring in 12S Li-ion packs where reference stability affects SOC estimation accuracy. IC Role / Device Role / Timing Role: Supplies reference for 12-channel ADC measuring individual cell voltages (0–4.2 V). Use Value: Supports <±1 mV measurement error over full temperature and lifetime via 10 ppm/°C tempco and 50 ppm 1000-hr drift specification. |
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 output; 50 ppm/°C tempco (max); 50 µA IQ; no enable pin | Lacks shutdown mode; higher tempco limits use in wide-temperature industrial sensors | Select when enable functionality is unnecessary and cost sensitivity outweighs tempco requirements |
| ADR3430ARJZ-R7 | 3.0 V output; 10 ppm/°C tempco; 120 µA IQ; no enable; 6-pin SOT-23 | Higher quiescent current reduces battery life; extra pin increases layout area | Choose when tighter long-term stability (30 ppm/1000 h) is prioritized over power and footprint |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, LM4132EMF-3.0 uniquely combines A-grade 10 ppm/°C tempco, 3 µA shutdown, and SOT-23-5 footprint - making it optimal for space- and power-constrained portable instrumentation where precision must be maintained across temperature and battery discharge cycles.
Availability
LM4132EMF-3.0 is available at Aetrix Electronics and suitable for portable instrumentation, industrial PLC analog inputs, and handheld test equipment requiring stable component supply with guaranteed long-term availability and automotive-grade traceability.
Supply support for LM4132EMF-3.0 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 industrial-grade components.
The LM4132 family was designed for high-accuracy, low-power reference needs in portable, automotive, and industrial measurement systems - replacing laser-trimmed references with cost-effective, EEPROM-calibrated CMOS solutions.
FAQ
What is the maximum input voltage for LM4132EMF-3.0?
The absolute maximum input voltage for LM4132EMF-3.0 is 6 V, but the recommended operating maximum is 5.5 V. Operation above VREF + 400 mV (i.e., ≥3.4 V) is required for regulation; exceeding 5.5 V risks permanent damage per Absolute Maximum Ratings. The LM4132EMF-3.0 datasheet specifies 5.5 V as the upper limit for continuous operation under Recommended Operating Conditions.
Does LM4132EMF-3.0 require an output capacitor for stability?
No, LM4132EMF-3.0 does not require an output capacitor for stability. The device is internally compensated and remains stable with only a 1 µF low-ESR ceramic capacitor on VIN (CIN). Adding COUT is optional and may reduce noise but is not needed for loop stability - a key differentiator from most LDO and shunt references. This simplifies layout and reduces BOM count in the LM4132EMF-3.0 design.
What is the enable pin behavior for LM4132EMF-3.0?
The EN pin on LM4132EMF-3.0 is an active-high digital control input. When pulled to ≥65% of VIN, the device enables and delivers 3.0 V output; when pulled to ≤35% of VIN, it enters shutdown mode drawing only 3 µA. The pin has no internal pull-up/down and must be driven externally. This behavior is confirmed in Section 6.5 of the LM4132EMF-3.0 datasheet under Electrical Characteristics.
Is LM4132EMF-3.0 qualified for automotive applications?
The LM4132EMF-3.0 is not automotive-qualified; it belongs to the commercial-grade LM4132 series. For automotive use, TI offers the LM4132-Q1 variant (e.g., LM4132Q30IDBVRQ1), which is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient) and tested for HBM ESD Level 2. LM4132EMF-3.0 is rated for –40°C to +125°C junction temperature but lacks automotive-specific qualification testing and documentation.
What grade (A–E) does LM4132EMF-3.0 correspond to?
LM4132EMF-3.0 is the A-grade variant, indicated by the "E" suffix in the orderable part number (where "E" denotes SOT-23-5 package and "A" is implied by the "EMF" prefix per TI's naming convention for LM4132 family). It guarantees 0.05% initial accuracy and 10 ppm/°C temperature coefficient (0°C to 85°C), matching the LM4132A-3.0 specifications in Section 6.8 of the datasheet.
LM4132EMF-3.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.5%
- Temperature Coefficient:
- 30ppm/°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
LM4132EMF-3.0 FAQ
1.How can I place an order for LM4132EMF-3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132EMF-3.0 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-3.0 reliable?
The price and inventory of LM4132EMF-3.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132EMF-3.0 is usually 5 days.
3.What payment methods are accepted for LM4132EMF-3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132EMF-3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132EMF-3.0?
LM4132EMF-3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132EMF-3.0 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-3.0?
For technical support, including LM4132EMF-3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132EMF-3.0 requirements.
6.How does Aetrix verify that LM4132EMF-3.0 is sourced from the original manufacturer or authorized distributors?
All LM4132EMF-3.0 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-3.0 meets industry standards.
7.What is the process for return or replacement of LM4132EMF-3.0?
All LM4132EMF-3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4132EMF-3.0, 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-3.0 part is unused and in its original packaging.
Return procedure for LM4132EMF-3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132EMF-3.0 Tags
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