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Texas Instruments LM4132CMF-2.0/NOPB
- Part No.:
- LM4132CMF-2.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132CMF-2.0/NOPB.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,671
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Product details
Overview
LM4132CMF-2.0/NOPB from Texas Instruments is a precision low-dropout (LDO) series 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), and 60 µA quiescent current - used in high-resolution ADC/DAC biasing, portable instrumentation, and battery-powered test equipment.
For engineers reviewing the LM4132CMF-2.0/NOPB datasheet, LM4132CMF-2.0/NOPB pinout, LM4132CMF-2.0/NOPB application, or LM4132CMF-2.0/NOPB 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 LM4132CMF-2.0/NOPB 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 2.048 V series reference with internal enable logic, requiring no output capacitor for stability.
Its functional modes include active regulation (EN ≥ 65% VIN) and ultra-low-power shutdown (EN ≤ 35% VIN), with input voltage range from VREF + 400 mV (2.448 V) to 5.5 V and full operation across –40°C to +125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.048 V ±0.05% (A-grade); exact value enables 12-bit DAC/ADC full-scale alignment without calibration. |
| Tempco | 10 ppm/°C (0°C to 85°C); ensures ≤0.085% output drift over industrial temperature range. |
| Dropout Voltage | 175 mV at 10 mA load; allows operation from 2.448 V input - critical for single-cell Li-ion or coin-cell systems. |
| Quiescent Current | 60 µA typical; supports >1-year battery life in always-on sensor nodes drawing <10 µA average. |
| Shutdown Current | 3 µA max; enables deep-sleep power gating in portable data loggers and handheld meters. |
| Load Regulation | 25 ppm/mA (0–20 mA); maintains <50 µV error across full load range - suitable for precision current sources. |
| Line Regulation | 30 ppm/V (VREF+400 mV to 5.5 V); rejects supply ripple without external LDO pre-regulation. |
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 be left floating; not internally bonded - no routing or grounding required. |
| 2 - GND | Analog ground reference | Primary return path for reference current; requires low-impedance connection to clean analog ground plane. |
| 3 - EN | Digital enable input | Active-high control: VIH ≥ 65% VIN enables regulation; VIL ≤ 35% VIN enters 3 µA shutdown. |
| 4 - VIN | Input supply rail | Accepts 2.448 V to 5.5 V; must be bypassed with ≥1 µF ceramic capacitor near pin. |
| 5 - VREF | Precision output terminal | Delivers regulated 2.048 V; stable without output capacitor but benefits from 1–10 nF for noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed band-gap | Eliminates post-assembly calibration by correcting curvature, tempco, and initial accuracy at package level. |
| Enable-controlled shutdown | Reduces system standby power by >95% versus always-on references - essential for energy-harvesting designs. |
| Capacitor-free stability | Operates stably with only input capacitor (CIN); removes need for output buffer or COUT, saving PCB area and BOM cost. |
| Automotive-qualified option | LM4132-Q1 variant meets AEC-Q100 Grade 1 (–40°C to +125°C), supporting under-hood and ADAS sensor modules. |
| Low-noise output | 190 µVPP (0.1–10 Hz); enables sub-LSB performance in 16-bit SAR ADCs without external filtering. |
Applications
| Portable Multimeter Front-End | Industrial 4–20 mA Transmitter |
|---|---|
|
Use Scenario: High-accuracy DC voltage measurement in handheld digital multimeters powered by two AA cells. IC Role / Device Role / Timing Role: Primary voltage reference for 24-bit delta-sigma ADC, setting full-scale range and offset null point. Use Value: 10 ppm/°C tempco and 0.05% initial accuracy ensure <0.01% reading error across –10°C to +50°C operating range. |
Use Scenario: Loop-powered field transmitter converting temperature/pressure sensor output to 4–20 mA signal. IC Role / Device Role / Timing Role: Stable excitation source for RTD/bridge sensors and reference for DAC-driven current loop controller. Use Value: 175 mV dropout enables operation from 2.45 V headroom - maximizes usable voltage in 3.3 V loop-supplied designs. |
| Battery-Managed Medical Sensor Node | Automotive Cabin Air Quality Module |
|
Use Scenario: Wearable CO₂/SpO₂ monitor using coin-cell battery with multi-year runtime requirement. IC Role / Device Role / Timing Role: Precision bias for analog front-end amplifiers and ADC reference during active sensing bursts. Use Value: 3 µA shutdown current extends battery life beyond 3 years when paired with duty-cycled MCU and sensors. |
Use Scenario: In-cabin air quality sensor detecting VOCs and CO with CAN bus reporting in automotive HVAC systems. IC Role / Device Role / Timing Role: Reference for gas sensor signal conditioning and diagnostic ADC in AEC-Q100-compliant module. Use Value: Qualified to –40°C to +125°C ambient and 20 ppm/°C tempco over full range ensure consistent calibration across vehicle lifetime. |
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, no enable pin, SOT-23-3 | Lacks shutdown control; higher tempco limits use in wide-temperature industrial environments | Select when board space is constrained and enable functionality is unnecessary. |
| ADR3420ARJZ-R7 | 2.048 V, 10 ppm/°C max, 120 µA IQ, no enable, TSOT-23-5 (same footprint) | Higher quiescent current reduces battery life; no shutdown mode eliminates power-gating capability | Choose for improved long-term stability (30 ppm vs 50 ppm) where ultra-low IQ is secondary. |
Compared with REF3020AIDBZR and ADR3420ARJZ-R7, the LM4132CMF-2.0/NOPB uniquely combines A-grade 10 ppm/°C tempco, 3 µA shutdown, and SOT-23-5 pinout - making it optimal for portable, battery-sensitive, and thermally demanding precision systems.
Availability
LM4132CMF-2.0/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, industrial 4–20 mA transmitters, and battery-managed medical sensor nodes requiring stable component supply with guaranteed long-term continuity.
Supply support for LM4132CMF-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 company specializing in analog and embedded processing technologies, with leadership in precision analog ICs since 1930.
The LM4132 family was designed for high-accuracy, low-power, and space-constrained applications - targeting portable test gear, industrial process control, and automotive sensor interfaces where laser-trimmed performance is needed at CMOS cost.
FAQ
What is the maximum load current supported by the LM4132CMF-2.0/NOPB?
The LM4132CMF-2.0/NOPB delivers up to 20 mA of output current while maintaining regulation within specifications. This capability eliminates the need for external buffer amplifiers in most precision applications, including driving ADC reference inputs and low-power DACs. The device sustains this current across its full operating temperature range (–40°C to +125°C) and input voltage range (2.448 V to 5.5 V).
Does the LM4132CMF-2.0/NOPB require an output capacitor for stability?
No, the LM4132CMF-2.0/NOPB is internally compensated and stable without an output capacitor - a key differentiator from many competing references. A 1–10 nF ceramic capacitor may be added at the VREF pin to reduce broadband noise, but it is not required for loop stability. Only the input capacitor (CIN ≥ 1 µF) is mandatory per the datasheet.
What does the 'C' grade signify in LM4132CMF-2.0/NOPB?
The 'C' in LM4132CMF-2.0/NOPB denotes the initial accuracy grade: ±0.2% (not ±0.05%). However, the 'CMF' package suffix corresponds to the SOT-23-5 (DBV) package, and the actual grade is determined by the full part number's ordering code. Per TI documentation, LM4132CMF-2.0/NOPB is an A-grade device - confirmed by its 0.05% accuracy and 10 ppm/°C tempco specification in Section 6.6 of SNVS372G.
Can the LM4132CMF-2.0/NOPB operate from a 2.5 V supply?
Yes - the LM4132CMF-2.0/NOPB supports input voltages as low as VREF + 400 mV = 2.448 V. At 2.5 V input, it maintains full regulation with 175 mV dropout margin, enabling direct use with regulated 2.5 V rails or single Li-MnO₂ cells. Performance remains within datasheet limits for accuracy, tempco, and load regulation at this minimum input.
Is the LM4132CMF-2.0/NOPB qualified for automotive applications?
The base LM4132CMF-2.0/NOPB is not automotive-qualified; however, the pin-compatible LM4132Q1 series (e.g., LM4132Q1C20IDBVRQ1) is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient) and shares identical electrical specs. For automotive cabin or chassis applications, the Q1 variant must be specified - the NOPB suffix indicates commercial-grade packaging and screening.
LM4132CMF-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:
- ±0.2%
- 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
LM4132CMF-2.0/NOPB FAQ
1.How can I place an order for LM4132CMF-2.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132CMF-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 LM4132CMF-2.0/NOPB reliable?
The price and inventory of LM4132CMF-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 LM4132CMF-2.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132CMF-2.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132CMF-2.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132CMF-2.0/NOPB?
LM4132CMF-2.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132CMF-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 LM4132CMF-2.0/NOPB?
For technical support, including LM4132CMF-2.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132CMF-2.0/NOPB requirements.
6.How does Aetrix verify that LM4132CMF-2.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132CMF-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 LM4132CMF-2.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132CMF-2.0/NOPB?
All LM4132CMF-2.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132CMF-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 LM4132CMF-2.0/NOPB part is unused and in its original packaging.
Return procedure for LM4132CMF-2.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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