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Texas Instruments LM4132EMF-3.0/NOPB
- Part No.:
- LM4132EMF-3.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132EMF-3.0/NOPB.pdf
- Description:
- IC VREF SERIES 0.5% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,528
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Product details
Overview
LM4132EMF-3.0/NOPB from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC delivering a stable 3.0 V output with 0.05% initial accuracy, 10 ppm/°C temperature coefficient, and 60 µA supply current. It features an enable pin for 3 µA shutdown mode, supports up to 20 mA load, and operates from VIN = VREF + 400 mV to 5.5 V - ideal for high-accuracy ADC/DAC biasing in portable instrumentation.
For engineers reviewing the LM4132EMF-3.0/NOPB datasheet, LM4132EMF-3.0/NOPB pinout, LM4132EMF-3.0/NOPB application, or LM4132EMF-3.0/NOPB equivalent, key selection factors include its SOT-23-5 package, A-grade precision, dropout voltage ≤400 mV at 125°C, stability with ceramic capacitors, and automotive-grade qualification (LM4132-Q1 variant).
Technical Context
The LM4132EMF-3.0/NOPB uses EEPROM-trimmed CMOS band-gap architecture to achieve laser-trimmed bipolar-level accuracy without laser trimming, correcting curvature, tempco, and initial offset at package level to overcome assembly-induced shifts. Its internal LDO regulator eliminates need for output buffer or mandatory COUT.
It implements a rail-to-rail enable input (VIH = 65% VIN, VIL = 35% VIN), supports indefinite short-circuit protection, and maintains 0.5% output accuracy down to 230 mV dropout (at 10 mA, 25°C). Thermal hysteresis is limited to 75 ppm over –40°C to 125°C cycling.
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), enabling <±0.5 mV drift over industrial range |
| Dropout Voltage | 230 mV @ 10 mA (25°C); max 400 mV @ 10 mA, –40°C to 125°C |
| Supply Current | 60 µA (typical), rising to 100 µA over full temperature range |
| Shutdown Current | 3 µA (typical) when EN = 0 V |
| Load Regulation | 25 ppm/mA (0–20 mA), equivalent to ±0.075 mV/V change per mA |
| Line Regulation | 70 ppm/V (VREF + 400 mV to 5.5 V), limiting input ripple sensitivity |
| Noise (0.1–10 Hz) | 285 µVPP, suitable for 16-bit+ data acquisition systems |
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 terminal | Must remain unconnected; no internal bond or function |
| 2 - GND | Analog ground reference | Primary return path for reference output and internal circuitry; requires low-impedance PCB connection |
| 3 - EN | Active-high enable input | Drives device into 3 µA shutdown when pulled low (<35% VIN); high threshold ≥65% VIN |
| 4 - VIN | Input supply pin | Accepts 3.4 V to 5.5 V (min VIN = VREF + 400 mV); powers internal LDO and reference core |
| 5 - VREF | Precision output terminal | Delivers regulated 3.0 V; capable of sourcing up to 20 mA; stable without COUT but requires CIN |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-based curvature correction | Compensates die-package shift post-assembly, enabling A-grade specs in plastic SOT-23 without laser trimming |
| Enable-controlled shutdown | Reduces quiescent current from 60 µA to 3 µA - critical for battery runtime extension in portable meters |
| Capacitor flexibility | Stable with low-ESR ceramic input capacitor only; no output capacitor required, saving board space and BOM cost |
| High output drive | 20 mA source capability eliminates need for external buffer op-amps in DAC reference or sensor excitation circuits |
| Automotive qualification option | LM4132-Q1 variant meets AEC-Q100 Grade 1 (–40°C to +125°C ambient), supporting under-hood applications |
Applications
| Portable Multimeter Reference | Industrial PLC Analog Input Module |
|---|---|
Use Scenario: High-precision handheld multimeter requiring stable 3.0 V reference for 24-bit sigma-delta ADC front-end. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion and DMM auto-ranging circuitry. Use Value: 10 ppm/°C tempco and 0.05% initial accuracy ensure <±0.5 LSB error over –10°C to 50°C operating range without calibration. | Use Scenario: 4–20 mA loop-powered analog input module in factory automation control cabinet. IC Role / Device Role / Timing Role: Precision reference for current-sense amplifier and isolated ADC biasing. Use Value: 400 mV dropout enables operation from 3.4 V supply derived from loop power, maintaining accuracy across full temperature range. |
| Battery-Powered Data Logger | Medical Patient Monitor Sensor Interface |
Use Scenario: Low-power environmental data logger powered by two AA cells (2.4–3.2 V nominal). IC Role / Device Role / Timing Role: Reference for thermistor/RTD measurement circuit and microcontroller ADC. Use Value: 3 µA shutdown current extends battery life >5 years in sleep mode; 60 µA active current minimizes self-heating error. | Use Scenario: ECG front-end signal conditioning stage requiring ultra-low-noise, stable bias for instrumentation amplifiers. IC Role / Device Role / Timing Role: Low-noise 3.0 V reference for PGA gain-setting and ADC reference voltage. Use Value: 285 µVPP (0.1–10 Hz) noise ensures <1 µV RMS noise contribution, preserving clinical-grade signal integrity. |
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 | 3.0 V, 0.1% initial accuracy, 50 ppm/°C tempco, 50 µA IQ, SOT-23-3, no enable pin | Lacks shutdown control and grade-A precision; lower cost but higher drift in wide-temp environments | Select when enable functionality and sub-10 ppm/°C stability are not required |
| ADR3430ARJZ-R7 | 3.0 V, 0.1% initial accuracy, 10 ppm/°C tempco, 120 µA IQ, SOT-23-5, no enable pin | Same tempco but double supply current and no shutdown - unsuitable for battery-critical designs | Choose when highest long-term stability (30 ppm/1000 hrs) is prioritized over power |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the LM4132EMF-3.0/NOPB uniquely combines A-grade accuracy, ultra-low IQ, enable-controlled shutdown, and SOT-23-5 pinout - making it optimal for space-constrained, battery-aware precision systems where dynamic power management is essential.
Availability
LM4132EMF-3.0/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, industrial analog I/O modules, and medical sensor interfaces requiring stable component supply with guaranteed long-term continuity.
Supply support for LM4132EMF-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 leader specializing in analog, embedded processing, and digital signal technologies, with decades of leadership in precision analog ICs.
The LM4132 family was designed specifically for high-accuracy, low-power, space-constrained applications - including portable test equipment, battery-operated sensors, and industrial control systems requiring stable voltage references without laser-trimmed cost premiums.
FAQ
What is the maximum load current supported by the LM4132EMF-3.0/NOPB?
The LM4132EMF-3.0/NOPB delivers up to 20 mA of output current while maintaining 0.5% output accuracy. This specification holds across the full operating temperature range (–40°C to +125°C) and allows direct driving of ADC references, op-amp bias networks, or small sensor excitation circuits without external buffering. The LM4132EMF-3.0/NOPB achieves this using an integrated LDO architecture optimized for low dropout and high PSRR.
Does the LM4132EMF-3.0/NOPB require an output capacitor for stability?
No, the LM4132EMF-3.0/NOPB is internally compensated and stable without an output capacitor. The datasheet explicitly states COUT is optional, and typical applications use only the required input capacitor (CIN). This eliminates BOM cost, PCB area, and potential phase-margin risks associated with output capacitance selection - a key advantage over many competing references that mandate specific COUT values or ESR ranges.
What does the "/NOPB" suffix indicate for LM4132EMF-3.0/NOPB?
The "/NOPB" suffix on LM4132EMF-3.0/NOPB denotes lead-free (Pb-free) and RoHS-compliant packaging. It confirms the device uses matte-tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), allowing standard SMT reflow without special baking. This suffix replaces older "Pb-Free" or "G3" markings and is TI's standardized designation for environmentally compliant variants of the LM4132EMF-3.0/NOPB.
How does the enable pin (EN) function on the LM4132EMF-3.0/NOPB?
The EN pin on the LM4132EMF-3.0/NOPB is an active-high digital control input. When pulled above 65% of VIN, the device operates normally; when pulled below 35% of VIN, it enters 3 µA shutdown mode. The threshold is ratiometric to VIN, ensuring robust operation across input voltage variations. No external pull-up is required - the LM4132EMF-3.0/NOPB drives VREF high within 20 µs of EN assertion, with no minimum pulse width specified.
Is the LM4132EMF-3.0/NOPB qualified for automotive applications?
The LM4132EMF-3.0/NOPB itself is not automotive-qualified; however, the pin-compatible LM4132Q3E-3.0/NOPB (or LM4132-Q1 series) is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient) and shares identical electrical specs. For automotive designs requiring qualification, engineers must select the Q1-suffixed part number - the LM4132EMF-3.0/NOPB remains suitable for industrial, medical, and portable applications where extended temperature operation is needed but formal automotive certification is not mandated.
LM4132EMF-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:
- ±0.5%
- 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/NOPB FAQ
1.How can I place an order for LM4132EMF-3.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132EMF-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 LM4132EMF-3.0/NOPB reliable?
The price and inventory of LM4132EMF-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 LM4132EMF-3.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132EMF-3.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132EMF-3.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132EMF-3.0/NOPB?
LM4132EMF-3.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132EMF-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 LM4132EMF-3.0/NOPB?
For technical support, including LM4132EMF-3.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132EMF-3.0/NOPB requirements.
6.How does Aetrix verify that LM4132EMF-3.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132EMF-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 LM4132EMF-3.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132EMF-3.0/NOPB?
All LM4132EMF-3.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132EMF-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 LM4132EMF-3.0/NOPB part is unused and in its original packaging.
Return procedure for LM4132EMF-3.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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