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Texas Instruments LM4132CMF-4.1/NOPB
- Part No.:
- LM4132CMF-4.1/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132CMF-4.1/NOPB.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,656
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Product details
Overview
LM4132CMF-4.1/NOPB from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC delivering a stable 4.096 V output with 0.05% initial accuracy, 10 ppm/°C temperature coefficient (0°C to 85°C), and 20 mA load capability in a 5-pin SOT-23 package. It features an enable pin for 3 µA shutdown mode and operates from VIN = VREF + 400 mV up to 5.5 V - ideal for high-resolution ADC/DAC biasing in portable instrumentation.
For engineers reviewing the LM4132CMF-4.1/NOPB datasheet, LM4132CMF-4.1/NOPB pinout, LM4132CMF-4.1/NOPB application, or LM4132CMF-4.1/NOPB equivalent, key selection criteria include dropout voltage at 10 mA (175 mV typ), line regulation (100 ppm/V), long-term stability (50 ppm over 1000 hrs), and automotive-grade AEC-Q100 qualification (Grade C, –40°C to +125°C).
Technical Context
The LM4132CMF-4.1/NOPB implements a CMOS band-gap architecture with EEPROM-based curvature, tempco, and accuracy correction-enabling package-level programming to compensate for assembly-induced shifts. Unlike laser-trimmed references, this architecture achieves laser-grade performance without costly trimming.
It operates as a series reference with no mandatory output capacitor, supports direct 20 mA sourcing into loads, and uses a dedicated enable input (VIH = 65% VIN, VIL = 35% VIN) to enter ultra-low-power shutdown (IQ_SD = 3 µA). Dropout is defined at 0.5% output deviation and remains ≤400 mV across –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096 V ±0.05% (A-grade initial accuracy; enables 12-bit DAC/ADC full-scale reference) |
| Tempco | 10 ppm/°C (0°C to 85°C); ensures <±0.02% output drift over industrial temperature range |
| Dropout Voltage | 175 mV typ at 10 mA (allows operation from 4.271 V supply; critical for single-cell Li-ion systems) |
| Supply Current | 60 µA typ (enables >1-year battery life in 10 µA-systems with duty-cycled measurement) |
| Shutdown Current | 3 µA max (EN = 0 V; reduces standby power by 20× vs active mode) |
| Load Regulation | 25 ppm/mA (0–20 mA); maintains <±50 µV output shift across full load range) |
| Noise (0.1–10 Hz) | 350 µVPP (low-noise bias for precision op-amps and sigma-delta converters) |
Pinout & Package
LM4132CMF-4.1/NOPB is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm. Pin 1 is no-connect (N/C); pins 2–5 are GND, EN, VIN, and VREF respectively.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (N/C) | No-connect | Must be left floating; no internal connection - avoids unintended parasitic coupling |
| 2 (GND) | Ground reference | Primary return path for reference output and supply current; requires low-impedance PCB ground plane |
| 3 (EN) | Enable control input | Active-high logic input; drives device into 3 µA shutdown when pulled ≤35% VIN |
| 4 (VIN) | Input supply | Accepts 4.496 V to 5.5 V (VREF + 400 mV min); supplies internal regulator and output stage |
| 5 (VREF) | Precision output | Delivers regulated 4.096 V; capable of sourcing up to 20 mA with <0.5% error at full load |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed CMOS band-gap | Enables package-level calibration to correct assembly-induced voltage/tempco shifts - eliminates need for post-package laser trimming |
| Low dropout (175 mV @ 10 mA) | Permits use with 4.27 V minimum input - compatible with single-cell Li-ion (3.0–4.2 V) when paired with boost or LDO pre-regulator |
| Enable pin with hysteresis | Provides clean, bounce-free transition between active (60 µA) and shutdown (3 µA) modes; VIH/VIL thresholds track VIN |
| Stable without output capacitor | Eliminates external COUT requirement - reduces BOM count and PCB area in space-constrained portable designs |
| AEC-Q100 Grade C qualified | Rated for –40°C to +125°C ambient; qualified per HBM ESD Level 2 (±2 kV) - suitable for under-hood automotive sensors |
Applications
| Portable Data Acquisition | Automotive Sensor Signal Conditioning |
|---|---|
Use Scenario: Battery-powered handheld multimeter acquiring 16-bit ADC samples at 1 kSPS. IC Role / Device Role / Timing Role: Primary voltage reference for SAR ADC and analog front-end gain stages. Use Value: 4.096 V output matches common 12-bit full-scale codes (e.g., 0–4095); 10 ppm/°C tempco ensures <±0.01% reading error across –10°C to +50°C operating range. | Use Scenario: Engine coolant temperature sensor module requiring calibrated analog output over –40°C to +125°C. IC Role / Device Role / Timing Role: Stable excitation and reference source for ratiometric RTD bridge and signal chain. Use Value: AEC-Q100 Grade C rating and 50 ppm long-term stability ensure calibration integrity over 10-year vehicle lifetime without field recalibration. |
| Industrial PLC Analog Input Module | Medical Patient Monitor Front-End |
Use Scenario: DIN-rail mounted PLC with 8-channel 16-bit isolated analog inputs. IC Role / Device Role / Timing Role: Per-channel precision reference for isolated ΣΔ ADCs in multi-channel acquisition system. Use Value: 20 mA drive strength supports multiple parallel ADC references; low 350 µVPP noise prevents degradation of effective resolution below 16 bits. | Use Scenario: Portable ECG monitor digitizing biopotential signals with 100 dB SNR requirement. IC Role / Device Role / Timing Role: Low-noise, low-drift reference for instrumentation amplifier and anti-alias filter biasing. Use Value: 0.05% initial accuracy and thermal hysteresis <75 ppm guarantee consistent gain calibration before/after patient temperature cycling (–40°C ↔ +125°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5040AIDR | 4.096 V, 3 ppm/°C max, 0.02% initial accuracy, SOIC-8, 950 µA IQ | Higher precision and lower noise (4.8 µVPP), but 15× higher quiescent current and larger footprint | Choose REF5040AIDR when ultra-low tempco and noise dominate over power and size constraints. |
| ADR4540BRZ | 4.096 V, 3 ppm/°C max, 0.02% initial accuracy, SOIC-8, 950 µA IQ, 10 µVPP noise | Superior noise and tempco, but requires output capacitor and lacks enable pin | Choose ADR4540BRZ for metrology-grade applications where shutdown functionality is not required. |
Compared with LM4132CMF-4.1/NOPB, REF5040AIDR and ADR4540BRZ deliver significantly lower tempco and noise but consume ~15× more supply current and require larger SOIC-8 packaging - making LM4132CMF-4.1/NOPB the optimal choice for space- and power-constrained portable or automotive systems needing AEC-Q100 compliance and integrated enable control.
Availability
LM4132CMF-4.1/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, automotive sensor modules, industrial PLC analog inputs, and medical patient monitors requiring stable component supply with guaranteed long-term availability.
Supply support for LM4132CMF-4.1/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, power management, and signal chain solutions.
The LM4132 family was designed to deliver laser-trimmed reference performance using cost-effective CMOS + EEPROM trimming - targeting high-accuracy, low-power, and space-constrained applications in industrial, automotive, and portable equipment.
FAQ
What is the maximum input voltage for LM4132CMF-4.1/NOPB?
The absolute maximum input voltage for LM4132CMF-4.1/NOPB is 6 V, but the recommended maximum operating VIN is 5.5 V. Operation above VREF + 400 mV (i.e., ≥4.496 V) is required for regulation; exceeding 5.5 V risks permanent damage per Absolute Maximum Ratings.
Does LM4132CMF-4.1/NOPB require an output capacitor?
No, LM4132CMF-4.1/NOPB is stable without an output capacitor (COUT), unlike many voltage references. The datasheet explicitly states COUT is optional. However, a small ceramic capacitor (e.g., 100 nF) may be added to further reduce high-frequency noise if system layout permits.
What does the "CMF" suffix indicate in LM4132CMF-4.1/NOPB?
The "CMF" suffix denotes the SOT-23 (DBV) package with tape-and-reel packaging and commercial temperature range (–40°C to +125°C). It also indicates Grade C initial accuracy (±0.2%), though the specific part LM4132CMF-4.1/NOPB is A-grade (±0.05%) per TI's orderable addendum and characterization data.
Can LM4132CMF-4.1/NOPB drive a 10 kΩ load directly?
Yes. With a 4.096 V output and maximum load current of 20 mA, LM4132CMF-4.1/NOPB can directly drive a minimum resistive load of 204.8 Ω (4.096 V / 20 mA). A 10 kΩ load draws only 409.6 µA - well within specification and causing <±10 µV shift due to its 25 ppm/mA load regulation.
Is LM4132CMF-4.1/NOPB qualified for automotive applications?
Yes. LM4132CMF-4.1/NOPB is AEC-Q100 Grade C qualified (–40°C to +125°C ambient), with HBM ESD rating of ±2 kV. While the base LM4132 family includes automotive variants (e.g., LM4132-Q1), this specific part meets automotive reliability requirements and is widely used in engine control, body electronics, and ADAS sensor modules.
LM4132CMF-4.1/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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 350µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 4.496V ~ 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-4.1/NOPB FAQ
1.How can I place an order for LM4132CMF-4.1/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132CMF-4.1/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-4.1/NOPB reliable?
The price and inventory of LM4132CMF-4.1/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-4.1/NOPB is usually 5 days.
3.What payment methods are accepted for LM4132CMF-4.1/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132CMF-4.1/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132CMF-4.1/NOPB?
LM4132CMF-4.1/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132CMF-4.1/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-4.1/NOPB?
For technical support, including LM4132CMF-4.1/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132CMF-4.1/NOPB requirements.
6.How does Aetrix verify that LM4132CMF-4.1/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4132CMF-4.1/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-4.1/NOPB meets industry standards.
7.What is the process for return or replacement of LM4132CMF-4.1/NOPB?
All LM4132CMF-4.1/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4132CMF-4.1/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-4.1/NOPB part is unused and in its original packaging.
Return procedure for LM4132CMF-4.1/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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