My Inquiry
My Account
Texas Instruments LM4132EMFX-2.0
- Part No.:
- LM4132EMFX-2.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4132EMFX-2.0.pdf
- Description:
- IC VREF SERIES 0.5% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,896
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4132EMFX-2.0 from Texas Instruments is a precision low-dropout voltage reference IC in SOT-23-5 package, delivering a stable 2.048 V output with ±0.05% initial accuracy (Grade A), 10 ppm/°C temperature coefficient (0°C to 85°C), and 60 µA quiescent current. It features an enable pin for 3 µA shutdown mode and supports up to 20 mA load current-ideal for high-resolution ADC/DAC biasing in portable instrumentation.
For engineers reviewing the LM4132EMFX-2.0 datasheet, LM4132EMFX-2.0 pinout, LM4132EMFX-2.0 application, or LM4132EMFX-2.0 equivalent, key selection criteria include dropout voltage (175 mV at 10 mA), line regulation (30 ppm/V), load regulation (25 ppm/mA), thermal hysteresis (75 ppm), and compatibility with low-ESR ceramic capacitors without requiring an output buffer.
Technical Context
The LM4132EMFX-2.0 implements a CMOS band-gap architecture with EEPROM-based curvature and tempco correction, enabling laser-trimmed-level precision in cost-effective plastic packaging. Its internal topology eliminates need for external output capacitance while maintaining stability across –40°C to +125°C ambient operation.
It operates as a series reference with VIN range from VREF + 400 mV (i.e., ≥2.448 V) to 5.5 V, and uses a dedicated enable input (EN) referenced to VIN to control active/shutdown states-supporting power-gating in battery-powered systems without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.048 V ±0.05% (Grade A) - matches common 12-bit DAC/ADC full-scale scaling and simplifies ratio-metric design |
| Tempco | 10 ppm/°C (0°C to 85°C) - ensures ≤0.85 mV drift over industrial temperature range, critical for metrology-grade measurements |
| Dropout Voltage | 175 mV at 10 mA - enables operation from single-cell Li-ion (3.0 V min) or regulated 2.5 V rails with margin |
| Quiescent Current | 60 µA - supports >1-year battery life in always-on sensor nodes drawing <10 µA average system current |
| Shutdown Current | 3 µA - reduces standby power by 20× vs active mode, enabling deep-sleep modes in portable equipment |
| Load Regulation | 25 ppm/mA - maintains <52 µV error across 0–20 mA load, sufficient for driving SAR ADC references directly |
| Noise (0.1–10 Hz) | 190 µVPP - contributes <0.009% RMS error in 2.048 V reference, suitable for 16-bit data acquisition |
Pinout & Package
SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N/C | No-connect pin; must remain floating-no internal connection or parasitic path |
| 2 | GND | Analog ground reference; requires low-impedance PCB connection to minimize noise coupling into VREF |
| 3 | EN | Enable input referenced to VIN; asserts active state when ≥65% of VIN, disables at ≤35% of VIN |
| 4 | VIN | Input supply rail; minimum 2.448 V (VREF + 400 mV); decoupling capacitor (CIN) required per layout guidelines |
| 5 | VREF | Precision output terminal; drives load directly-no buffer or COUT needed for stability |
Key Features
| Feature | Design Value |
|---|---|
| EEPROM-trimmed curvature compensation | Eliminates need for external trimming components and achieves 0.05% accuracy without laser calibration |
| Low-ESR capacitor stability | Operates stably with standard 0.1 µF X7R ceramic capacitors-no tantalum or electrolytic required |
| Grade-selectable precision | A-grade (0.05%/10 ppm/°C) to E-grade (0.5%/30 ppm/°C) allows cost/performance optimization per application |
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C) support enables use in engine control and ADAS sensor modules |
| High output drive capability | 20 mA sourcing capacity permits direct interface to multiple op-amp inputs or ADC reference pins |
Applications
| Portable Data Loggers | Industrial PLC Analog Input Modules |
|---|---|
Use Scenario: Battery-powered environmental sensor node recording temperature, humidity, and pressure at 1-second intervals for 12 months. IC Role / Device Role / Timing Role: Provides stable 2.048 V reference for 16-bit sigma-delta ADC and microcontroller VREF pin. Use Value: 60 µA quiescent current and 3 µA shutdown mode extend coin-cell life beyond 3 years; 10 ppm/°C tempco ensures <±0.5 LSB error across operating temperature. | Use Scenario: DIN-rail mounted programmable logic controller acquiring 4–20 mA loop signals via precision 24-bit ADCs. IC Role / Device Role / Timing Role: Supplies ratiometric reference for isolated ADC front-end and DAC output stage calibration. Use Value: 0.05% initial accuracy and 75 ppm thermal hysteresis eliminate field recalibration; SOT-23 footprint saves board space in dense I/O modules. |
| Medical Patient Monitor Front-Ends | Automotive Battery Management Systems |
Use Scenario: Portable ECG device digitizing biopotential signals with 100 dB SNR requirement. IC Role / Device Role / Timing Role: Reference source for instrumentation amplifier gain-setting and ADC conversion. Use Value: 190 µVPP (0.1–10 Hz) noise ensures baseline stability; AEC-Q100 qualification supports reuse in certified medical subsystems. | Use Scenario: Cell-voltage monitoring IC in 12S lithium-ion pack with integrated temperature sensing. IC Role / Device Role / Timing Role: Precision reference for 12-bit SAR ADC measuring 0–5 V cell voltages with ±1 mV accuracy. Use Value: 175 mV dropout enables operation from 3.3 V auxiliary rail; 20 mA drive supports simultaneous sampling of 4 channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 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; lower drive (10 mA); smaller package but no EN functionality | Select when board space is constrained and always-on operation suffices |
| ADR3420ARJZ-R7 | 2.048 V, 10 ppm/°C, 120 µA IQ, no enable, SOT-23-5, higher long-term drift (150 ppm) | Higher supply current limits battery life; no power gating; tighter tempco but less stable over time | Choose for ultra-low tempco where shutdown is unnecessary and lifetime drift is managed externally |
Compared with REF3020AIDBZR and ADR3420ARJZ-R7, the LM4132EMFX-2.0 uniquely combines A-grade precision, integrated enable control, 20 mA drive, and SOT-23-5 pinout-making it optimal for space-constrained, battery-sensitive, and power-gated measurement systems.
Availability
LM4132EMFX-2.0 is available at Aetrix Electronics and suitable for portable instrumentation, industrial analog I/O modules, medical sensor front-ends, and automotive BMS designs requiring stable component supply with guaranteed long-term continuity.
Supply support for LM4132EMFX-2.0 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 and automotive-grade components.
The LM4132 family was designed to deliver laser-trimmed voltage reference performance using EEPROM-programmable CMOS band-gap architecture-targeting high-accuracy data acquisition, test equipment, and safety-critical automotive sensor systems.
FAQ
What is the maximum input voltage for the LM4132EMFX-2.0?
The LM4132EMFX-2.0 supports a maximum input voltage of 5.5 V, as specified in the Absolute Maximum Ratings table. Operation above this level risks permanent damage. The recommended operating range is VREF + 400 mV (≥2.448 V) to 5.5 V, with optimal performance observed between 3.0 V and 5.0 V per typical characteristics.
Does the LM4132EMFX-2.0 require an output capacitor for stability?
No, the LM4132EMFX-2.0 is internally compensated and stable without an output capacitor (COUT). The datasheet explicitly states COUT is optional and confirms stability with low-ESR ceramic capacitors if used-unlike many references that mandate minimum COUT values.
What is the function of Pin 1 (N/C) on the LM4132EMFX-2.0?
Pin 1 of the LM4132EMFX-2.0 is a no-connect (N/C) terminal with no internal electrical connection. It must be left floating-neither tied to GND nor routed on the PCB-to avoid unintended coupling or mechanical stress on the die bond wire.
How does the enable pin (EN) of the LM4132EMFX-2.0 operate?
The EN pin of the LM4132EMFX-2.0 is a VIN-referenced digital input: it enables the device when voltage exceeds 65% of VIN and disables it when below 35% of VIN. In shutdown, supply current drops to 3 µA, and VREF enters high-impedance state-ensuring zero loading of downstream circuits.
Is the LM4132EMFX-2.0 qualified for automotive applications?
Yes, the LM4132EMFX-2.0 is part of the LM4132-Q1 family and is AEC-Q100 qualified for Device Temperature Grade 1 (–40°C to +125°C ambient), including HBM ESD Level 2 certification-making it suitable for under-hood and ADAS sensor applications where reliability and thermal robustness are mandatory.
LM4132EMFX-2.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.048V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.5%
- Temperature Coefficient:
- 30ppm/°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
LM4132EMFX-2.0 FAQ
1.How can I place an order for LM4132EMFX-2.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4132EMFX-2.0 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 LM4132EMFX-2.0 reliable?
The price and inventory of LM4132EMFX-2.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4132EMFX-2.0 is usually 5 days.
3.What payment methods are accepted for LM4132EMFX-2.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4132EMFX-2.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4132EMFX-2.0?
LM4132EMFX-2.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4132EMFX-2.0 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 LM4132EMFX-2.0?
For technical support, including LM4132EMFX-2.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4132EMFX-2.0 requirements.
6.How does Aetrix verify that LM4132EMFX-2.0 is sourced from the original manufacturer or authorized distributors?
All LM4132EMFX-2.0 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 LM4132EMFX-2.0 meets industry standards.
7.What is the process for return or replacement of LM4132EMFX-2.0?
All LM4132EMFX-2.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4132EMFX-2.0, 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 LM4132EMFX-2.0 part is unused and in its original packaging.
Return procedure for LM4132EMFX-2.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4132EMFX-2.0 Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
