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Texas Instruments LM4132BMF-2.0/NOPB
- Part No.:
- LM4132BMF-2.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132BMF-2.0/NOPB.pdf
- Description:
- IC VREF SERIES 0.1% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,253
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Product details
Overview
LM4132BMF-2.0/NOPB from Texas Instruments is a precision low-dropout (LDO) voltage reference IC delivering a stable 2.048 V output with ±0.1% initial accuracy (B-grade), 10 ppm/°C temperature coefficient (0°C to 85°C), 60 µA quiescent current, and 20 mA output drive capability in a 5-pin SOT-23 package. It serves as a high-stability reference for ADCs, DACs, and sensor signal chains in portable instrumentation and battery-powered test equipment.
For engineers reviewing the LM4132BMF-2.0/NOPB datasheet, LM4132BMF-2.0/NOPB pinout, LM4132BMF-2.0/NOPB application, or LM4132BMF-2.0/NOPB equivalent, key selection criteria include its enable-controlled shutdown (3 µA), 400 mV dropout at 10 mA, stability with low-ESR ceramic capacitors, and AEC-Q100 Grade 1 qualification for automotive ambient operation (–40°C to +125°C).
Technical Context
The LM4132BMF-2.0/NOPB implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed-level precision without costly bipolar processes. Its internal enable logic drives an active-high EN pin that controls a low-leakage pass element, transitioning between 60 µA operating mode and 3 µA shutdown state.
This device operates as a series (not shunt) reference, eliminating idle load current waste and supporting efficient battery-powered designs. Input voltage range is VREF + 400 mV to 5.5 V, and it requires only a single input capacitor (CIN); output capacitance (COUT) is optional due to inherent stability with ceramic types.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.048 V ±0.1% (B-grade, 25°C), enabling precise 12-bit ADC full-scale alignment |
| Tempco | 10 ppm/°C (0°C to 85°C), ensuring ≤1.7 mV drift over industrial temperature span |
| Dropout Voltage | 175 mV at 10 mA load, allowing operation from 2.223 V input - critical for single-cell Li-ion systems |
| Quiescent Current | 60 µA typical, reducing standby power in always-on measurement nodes |
| Shutdown Current | 3 µA max with EN = 0 V, extending battery life during idle periods |
| Load Regulation | 25 ppm/mA (0–20 mA), limiting output shift to <51 µV per mA - suitable for dynamic load sensing |
| Line Regulation | 30 ppm/V (VREF + 400 mV to 5.5 V), minimizing sensitivity to supply ripple in noisy environments |
Pinout & Package
LM4132BMF-2.0/NOPB uses the DBV (SOT-23-5) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads. Pin 1 is NC (no connect, must be left floating); pin 2 is GND; pin 3 is EN (enable input); pin 4 is VIN (input supply); pin 5 is VREF (precision output).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (NC) | No-connect terminal | Internally unconnected; must remain floating - no PCB trace or pull-up/down |
| Pin 2 (GND) | Analog ground reference | Primary return path for reference output and internal bias; requires low-impedance connection to system AGND |
| Pin 3 (EN) | Digital enable input | Active-high control: ≥65% of VIN enables regulation; ≤35% of VIN forces shutdown (3 µA IQ) |
| Pin 4 (VIN) | Input supply rail | Accepts 2.448 V to 5.5 V; minimum headroom is 400 mV above VREF for specified accuracy |
| Pin 5 (VREF) | Precision output node | Delivers regulated 2.048 V; capable of sourcing up to 20 mA while maintaining ±0.1% accuracy |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed CMOS band-gap | Eliminates assembly-induced voltage shift - achieves 0.1% initial accuracy without laser trimming |
| Enable-controlled shutdown | Reduces supply current from 60 µA to 3 µA, enabling micro-power sleep modes in portable data loggers |
| Capacitor-free stability | Operates reliably with only CIN (no mandatory COUT), simplifying layout and reducing BOM count |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - suitable for under-hood automotive sensors and ECUs |
| Low 0.1–10 Hz noise | 190 µVPP output noise enables high-resolution DC measurements in precision weigh scales and medical front-ends |
Applications
| Portable Data Acquisition | Automotive Sensor Interface |
|---|---|
Use Scenario: Battery-powered handheld multimeter acquiring 16-bit ADC samples at 1 kSPS. IC Role / Device Role / Timing Role: Provides stable 2.048 V reference for SAR ADC conversion, directly determining measurement resolution and absolute accuracy. Use Value: 10 ppm/°C tempco and 0.1% initial accuracy ensure ≤±0.003% full-scale error across –10°C to +50°C operating range. |
Use Scenario: Engine coolant temperature sensor signal conditioning in Tier-1 ECU module. IC Role / Device Role / Timing Role: Supplies excitation and reference voltage for ratiometric RTD bridge measurement, rejecting supply ripple. Use Value: AEC-Q100 Grade 1 rating and 400 mV dropout allow direct use from 3.3 V domain, eliminating LDO overhead. |
| Industrial Process Controller | Medical Patient Monitor |
Use Scenario: 4–20 mA loop transmitter with HART modulation requiring ultra-low drift reference. IC Role / Device Role / Timing Role: Sets DAC output scale for analog current output stage; long-term stability minimizes calibration frequency. Use Value: 50 ppm long-term drift (1000 hrs) and 75 ppm thermal hysteresis support annual field calibration intervals. |
Use Scenario: ECG front-end amplifier gain-setting and ADC reference in portable patient monitor. IC Role / Device Role / Timing Role: Reference for 24-bit delta-sigma ADC and programmable gain amplifier, defining signal-to-noise floor. Use Value: 190 µVPP 0.1–10 Hz noise ensures ≥100 dB SNR for microvolt-level biopotential signals. |
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 (–40°C to +125°C), 50 µA IQ, no enable pin | Lacks shutdown control; lower tempco spec but wider tolerance band over full temperature range | Choose when enable functionality is unnecessary and lowest possible tempco variance across full automotive range is prioritized |
| ADR3420ARJZ-R7 | 2.048 V, 10 ppm/°C (0°C to 70°C), 120 µA IQ, no enable, SOT-23-5 package | Higher quiescent current; no automotive qualification; narrower tempco guarantee range | Choose for cost-sensitive industrial applications where AEC-Q100 compliance and sub-3 µA shutdown are not required |
Compared with REF3020AIDBZR and ADR3420ARJZ-R7, the LM4132BMF-2.0/NOPB uniquely combines automotive qualification, enable-controlled ultra-low-power shutdown, and 10 ppm/°C tempco over 0°C–85°C - making it optimal for space-constrained, battery-aware automotive and portable test systems.
Availability
LM4132BMF-2.0/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, automotive sensor modules, and industrial process controllers requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LM4132BMF-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 and embedded processing technologies, with decades of expertise in precision analog IC design and automotive-grade reliability validation.
The LM4132 family was engineered to deliver laser-trimmed reference performance using cost-effective CMOS EEPROM trimming - targeting high-accuracy, low-power, and space-constrained applications in test equipment, automotive, and industrial systems.
FAQ
What is the output voltage tolerance of the LM4132BMF-2.0/NOPB at 25°C?
The LM4132BMF-2.0/NOPB is a B-grade device with ±0.1% initial output voltage accuracy at 25°C, meaning its 2.048 V nominal output falls within 2.046 V to 2.050 V under standard test conditions. This specification is 100% production tested and applies before any temperature or load variation.
Does the LM4132BMF-2.0/NOPB require an output capacitor for stability?
No, the LM4132BMF-2.0/NOPB is internally compensated and stable with no output capacitor required. A 1 µF ceramic CIN on VIN is mandatory; COUT is optional and may be added only if improved transient response or noise filtering is needed in the specific application.
What is the minimum input voltage required for the LM4132BMF-2.0/NOPB to maintain regulation?
The LM4132BMF-2.0/NOPB requires a minimum input voltage of VREF + 400 mV, or 2.448 V, to maintain output regulation within specifications. At 10 mA load, the typical dropout is 175 mV, but the 400 mV margin ensures ±0.5% accuracy across temperature and process variation.
Is the LM4132BMF-2.0/NOPB qualified for automotive applications?
Yes, the LM4132BMF-2.0/NOPB is AEC-Q100 Grade 1 qualified, with device-level testing confirming operation from –40°C to +125°C ambient temperature, HBM ESD classification Level 2 (±2000 V), and robustness for automotive subsystems including engine control, body electronics, and ADAS sensor interfaces.
How does the enable pin (EN) function on the LM4132BMF-2.0/NOPB?
The EN pin on the LM4132BMF-2.0/NOPB is an active-high digital control: applying ≥65% of VIN enables normal operation (60 µA IQ); applying ≤35% of VIN places the device in shutdown mode (≤3 µA IQ). No external pull-up or pull-down is required - the pin has defined logic thresholds referenced to VIN.
LM4132BMF-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:
- ±0.1%
- 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
LM4132BMF-2.0/NOPB FAQ
1.How can I place an order for LM4132BMF-2.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132BMF-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 LM4132BMF-2.0/NOPB reliable?
The price and inventory of LM4132BMF-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 LM4132BMF-2.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132BMF-2.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132BMF-2.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132BMF-2.0/NOPB?
LM4132BMF-2.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132BMF-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 LM4132BMF-2.0/NOPB?
For technical support, including LM4132BMF-2.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132BMF-2.0/NOPB requirements.
6.How does Aetrix verify that LM4132BMF-2.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132BMF-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 LM4132BMF-2.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132BMF-2.0/NOPB?
All LM4132BMF-2.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132BMF-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 LM4132BMF-2.0/NOPB part is unused and in its original packaging.
Return procedure for LM4132BMF-2.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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