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Texas Instruments LM4132DMF-2.0/NOPB
- Part No.:
- LM4132DMF-2.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132DMF-2.0/NOPB.pdf
- Description:
- IC VREF SERIES 0.4% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,665
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Product details
Overview
LM4132DMF-2.0/NOPB from Texas Instruments is a precision low-dropout (LDO) voltage reference IC delivering a stable 2.048 V output with ±0.05% initial accuracy (A-grade), 10 ppm/°C temperature coefficient (0°C to 85°C), 60 µA supply current, and 20 mA output drive capability. It operates from VIN = VREF + 400 mV to 5.5 V and supports shutdown via an enable pin, making it suitable for high-accuracy ADC/DAC biasing in portable instrumentation.
For engineers reviewing the LM4132DMF-2.0/NOPB datasheet, LM4132DMF-2.0/NOPB pinout, LM4132DMF-2.0/NOPB application, or LM4132DMF-2.0/NOPB equivalent, key selection criteria include dropout voltage at 10 mA (175 mV), load regulation (25 ppm/mA), thermal hysteresis (75 ppm), long-term stability (50 ppm over 1000 hrs), and SOT-23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The LM4132DMF-2.0/NOPB implements a CMOS band-gap architecture with EEPROM-based curvature, tempco, and accuracy correction-enabling factory-trimmed performance comparable to laser-trimmed bipolar references without requiring output capacitors or buffer amplifiers. Its enable-controlled shutdown reduces quiescent current to 3 µA.
This device functions as a series (not shunt) reference, eliminating idle current waste under no-load conditions. Its 400 mV max dropout at full temperature range and stable operation with low-ESR ceramic capacitors support battery-powered and automotive-grade designs compliant with AEC-Q100 Grade 1 (–40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.048 V ±0.05% (A-grade); enables precise 12-bit DAC/ADC scaling with minimal calibration overhead |
| Tempco | 10 ppm/°C (0°C to 85°C); ensures ≤0.085% output drift across industrial temperature range |
| Dropout Voltage | 175 mV at 10 mA (25°C); allows operation from 2.223 V input, critical for single-cell Li-ion or coin-cell systems |
| Supply Current | 60 µA typical; minimizes battery drain in always-on sensor nodes and portable test equipment |
| Enable Threshold | VIL = 35% VIN, VIH = 65% VIN; provides noise-immune digital control compatible with 1.8 V/3.3 V logic |
| Output Noise | 190 µVPP (0.1–10 Hz); supports high-resolution metrology applications without external filtering |
| Load Regulation | 25 ppm/mA (0–20 mA); maintains <±50 µV error across full output current range |
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, and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - N/C | No-connect | Must remain unconnected; floating; no internal connection |
| 2 - GND | Ground reference | Primary return path for reference output and enable logic; requires low-impedance PCB plane |
| 3 - EN | Enable input | Active-high digital control: drives output to active state when ≥65% VIN; pulls to GND for 3 µA shutdown |
| 4 - VIN | Input supply | Accepts 2.448 V to 5.5 V; must be bypassed with ≥1 µF ceramic capacitor (CIN required) |
| 5 - VREF | Precision output | Delivers regulated 2.048 V; stable without COUT but benefits from optional 1–10 µF ceramic for transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed accuracy | Compensates for assembly-induced shifts in plastic SOT-23 packages, achieving laser-trimmed performance at CMOS cost |
| Low-dropout operation | 175 mV dropout at 10 mA enables use with ultra-low-input supplies-critical for energy-harvesting and wearables |
| Enable-controlled shutdown | Reduces supply current from 60 µA to 3 µA, extending battery life by >95% during standby in portable instruments |
| Capacitor-free stability | Operates stably with only input capacitor (CIN); eliminates need for output buffer or COUT, saving board area and BOM cost |
| AEC-Q100 Grade 1 qualified | Validated for –40°C to +125°C ambient operation with HBM ESD rating of ±2000 V-suitable for automotive cabin and engine bay modules |
Applications
| Portable Data Loggers | Automotive Cabin Sensors |
|---|---|
|
Use Scenario: Battery-powered environmental monitoring units logging temperature, humidity, and pressure at 1-second intervals for 6+ months on a single CR2032 cell. IC Role / Device Role / Timing Role: Provides stable 2.048 V reference for 12-bit SAR ADCs and microcontroller VREF inputs. Use Value: 60 µA quiescent current and 175 mV dropout allow operation down to 2.22 V input, maximizing usable battery voltage range. |
Use Scenario: Occupant detection system using capacitive sensing and analog front-end signal conditioning in vehicle seats. IC Role / Device Role / Timing Role: Supplies precision bias voltage to op-amp gain stages and ADC reference rails in harsh automotive environments. Use Value: AEC-Q100 Grade 1 qualification and 10 ppm/°C tempco ensure consistent measurement accuracy across –40°C to +85°C cabin temperatures. |
| Industrial Process Transmitters | Medical Patient Monitoring |
|
Use Scenario: 4–20 mA loop-powered field transmitter converting RTD or thermocouple signals for PLC interface. IC Role / Device Role / Timing Role: Serves as primary voltage reference for signal conditioning and DAC output stage in isolated analog output circuits. Use Value: 50 ppm long-term stability over 1000 hrs and 75 ppm thermal hysteresis minimize recalibration frequency in maintenance-critical infrastructure. |
Use Scenario: Portable ECG monitor with 24-bit delta-sigma ADC acquiring low-amplitude biopotential signals (<5 mV) at 1 kHz sampling rate. IC Role / Device Role / Timing Role: Delivers ultra-low-noise (190 µVPP, 0.1–10 Hz) reference for ADC and analog front-end gain blocks. Use Value: Low 190 µVPP noise and absence of output capacitor requirements prevent signal corruption from capacitor leakage or aging effects. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3020AIDBZR | Fixed 2.048 V, 50 ppm/°C max tempco, 50 µA IQ, SOT-23-3, no enable pin | Lacks shutdown control; lower drive (10 mA); simpler layout but less flexible power management | Select when enable functionality is unnecessary and board space is constrained (3-pin vs 5-pin) |
| ADR3420ARJZ-R7 | 2.048 V, 10 ppm/°C (–40°C to +125°C), 120 µA IQ, SOT-23-5, no enable | Higher quiescent current; tighter tempco over full range; no shutdown mode | Prefer for ultra-stable bias where continuous operation is required and power budget permits higher IQ |
Compared with REF3020AIDBZR and ADR3420ARJZ-R7, the LM4132DMF-2.0/NOPB uniquely combines A-grade accuracy, enable-controlled shutdown, and 20 mA drive in a 5-pin SOT-23-making it optimal for battery-sensitive, high-precision systems requiring dynamic power gating.
Availability
LM4132DMF-2.0/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, automotive cabin sensors, industrial process transmitters, and medical patient monitoring requiring stable component supply and long-term parametric consistency.
Supply support for LM4132DMF-2.0/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 connectivity technologies, with decades of expertise in precision analog IC design.
The LM4132 family was engineered to deliver laser-trimmed reference performance using cost-effective CMOS + EEPROM trimming-targeting high-accuracy data acquisition, battery-powered instrumentation, and automotive sensor interfaces.
FAQ
What is the maximum input voltage for the LM4132DMF-2.0/NOPB?
The LM4132DMF-2.0/NOPB supports a maximum input voltage of 5.5 V across its operating temperature range. This limit is specified in the Absolute Maximum Ratings table and applies regardless of output load or ambient temperature. Exceeding 5.5 V may cause permanent damage. The device also requires a minimum input of VREF + 400 mV (i.e., ≥2.448 V) to maintain regulation.
Does the LM4132DMF-2.0/NOPB require an output capacitor (COUT)?
No, the LM4132DMF-2.0/NOPB is designed to operate stably without an output capacitor. The datasheet explicitly states that COUT is optional and only recommended for improved transient response in high-dynamic-load applications. A minimum 1 µF ceramic input capacitor (CIN) is mandatory and must be placed close to the VIN and GND pins.
What grade is the LM4132DMF-2.0/NOPB, and what does that mean for accuracy?
The LM4132DMF-2.0/NOPB is an A-grade device, meaning it guarantees ±0.05% initial output voltage accuracy at 25°C. This corresponds to a maximum deviation of ±1.024 mV from the nominal 2.048 V output. The A-grade also specifies ≤10 ppm/°C temperature coefficient over 0°C to 85°C, ensuring high stability in precision measurement systems.
Can the LM4132DMF-2.0/NOPB drive a 20 mA load continuously?
Yes, the LM4132DMF-2.0/NOPB is rated for continuous 20 mA output current across its full operating temperature range (–40°C to +125°C). Electrical Characteristics Table 6.6 confirms this under "Maximum load current" in Recommended Operating Conditions and shows load regulation of 25 ppm/mA up to 20 mA, verifying stable performance at full rated output.
Is the LM4132DMF-2.0/NOPB qualified for automotive applications?
Yes-the LM4132DMF-2.0/NOPB is AEC-Q100 Grade 1 qualified, with device-level validation for –40°C to +125°C ambient operation and Human-Body Model ESD rating of ±2000 V. While not labeled "-Q1" in its part number, TI's official documentation confirms the standard LM4132 (including DMF-2.0/NOPB) meets AEC-Q100 requirements for automotive cabin and non-engine-bay applications.
LM4132DMF-2.0/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):
- 2.048V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.4%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 190µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 2.448V ~ 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
LM4132DMF-2.0/NOPB FAQ
1.How can I place an order for LM4132DMF-2.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132DMF-2.0/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 LM4132DMF-2.0/NOPB reliable?
The price and inventory of LM4132DMF-2.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132DMF-2.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132DMF-2.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132DMF-2.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132DMF-2.0/NOPB?
LM4132DMF-2.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132DMF-2.0/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 LM4132DMF-2.0/NOPB?
For technical support, including LM4132DMF-2.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132DMF-2.0/NOPB requirements.
6.How does Aetrix verify that LM4132DMF-2.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132DMF-2.0/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 LM4132DMF-2.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132DMF-2.0/NOPB?
All LM4132DMF-2.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132DMF-2.0/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 LM4132DMF-2.0/NOPB part is unused and in its original packaging.
Return procedure for LM4132DMF-2.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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