Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Reference

Texas Instruments REF4132A30DBVRQ1

Name: REF4132A30DBVRQ1
Brand: Texas Instruments
SKU: REF4132A30DBVRQ1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: REF4132A30DBVRQ1

Manufacturer:: Texas Instruments

Category:: Voltage Reference

Package:: SC-74A, SOT-753

Datasheet:: REF4132A30DBVRQ1.pdf

Description:: IC VREF SERIES 0.05% SOT23-5

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:180

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

REF4132A30DBVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified series voltage reference delivering 3.0 V output with ±0.05% initial accuracy, 12 ppm/°C max temperature coefficient (A grade), and ±10 mA output current capability in a 5-pin SOT-23 package. It enables high-precision ADC biasing in ADAS front camera and traction inverter systems where low drift and low power are critical.

For engineers reviewing the REF4132A30DBVRQ1 datasheet, REF4132A30DBVRQ1 pinout, REF4132A30DBVRQ1 application, or REF4132A30DBVRQ1 equivalent, key selection considerations include dropout voltage (100 mV max at 10 mA), quiescent current (100 µA max), 0.1–10 Hz noise (15 µV_PP), thermal hysteresis (35 ppm), and enable-controlled shutdown mode.

Technical Context

The REF4132A30DBVRQ1 implements a precision CMOS bandgap core with integrated output buffer and enable logic, supporting active and shutdown modes via the EN pin. Its architecture achieves low 1/f noise and excellent long-term stability (30 ppm/1000 hrs) through die-level trimming and stress-compensated layout.

It operates across −40°C to +125°C with input voltage as low as V_REF + V_DO (min 3.1 V for 3.0 V output), delivers ±10 mA load current, and maintains line regulation ≤15 ppm/V and load regulation ≤120 ppm/mA under full temperature range.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	3.0 V ±0.05% - ensures accurate full-scale calibration for 16-bit+ SAR and delta-sigma ADCs without software trimming
Temp Coefficient	12 ppm/°C max (A grade) - limits output drift to ±1.05 mV over −40°C to +125°C ambient
Quiescent Current	100 µA max - enables >10-year battery life in always-on automotive sensors
Dropout Voltage	100 mV max at 10 mA - allows operation from 3.1 V supply in low-voltage DC/DC rails
Output Noise	15 µV_PP (0.1–10 Hz) - preserves SNR in high-resolution data acquisition with <1 LSB error at 24-bit resolution
Enable Threshold	V_EN(HI) ≥1.6 V, V_EN(LO) ≤0.5 V - compatible with standard 3.3 V GPIO without level-shifting
Long-Term Drift	30 ppm/1000 hrs - supports 15-year functional safety compliance in ASIL-B systems without recalibration

Pinout & Package

SOT-23-5 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads, RoHS-compliant matte tin lead finish.

Pin/Terminal	Circuit Role	Design Meaning
1 - N/C	No-connect	Must be left floating; internal die connection absent - no routing or grounding permitted
2 - GND	Analog ground	Primary return path for reference core and buffer; requires low-impedance solid plane connection
3 - EN	Enable control input	Digital logic input controlling active/shutdown mode; 2.5 µA max leakage in shutdown
4 - VIN	Power input	Supplies bandgap core and buffer; accepts 3.1 V to 5.5 V with 0.1 µF ceramic bypass required
5 - VREF	Precision output	3.0 V buffered reference source; stable with 0.1–10 µF capacitive load; ±10 mA sourcing/sinking

Key Features

Feature	Design Value
AEC-Q100 Grade 1 qualification	Validated for −40°C to +125°C ambient operation with HBM ESD ≥±2500 V - meets automotive ECU reliability requirements
Low thermal hysteresis	35 ppm max after −40°C ↔ +125°C cycling - prevents calibration shift in thermally cycled ADAS modules
Shutdown mode current	5 µA max - reduces system standby power by >95% vs active mode in infotainment wake-on-LIN applications
Stable with ceramic output caps	Supports 0.1–10 µF X5R/X7R MLCCs - eliminates need for tantalum or electrolytic capacitors in space-constrained PCBs
Power supply rejection	≥60 dB up to 10 kHz - rejects ripple from switching DC/DC converters feeding HEV battery management systems

Applications

ADAS Front Camera	Traction Inverter Control
Use Scenario: High-dynamic-range image sensor biasing in 8 MP automotive camera modules operating at −40°C to +105°C under hood. IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for column ADCs and analog signal chain gain blocks. Use Value: 12 ppm/°C drift ensures <0.5 LSB gain error over full temperature range, enabling ISO 26262 ASIL-B compliance without per-unit calibration.	Use Scenario: Isolated gate driver bias and current-sense amplifier reference in 400 V traction inverter control boards. IC Role / Device Role / Timing Role: Supplies precision 3.0 V reference to isolated sigma-delta modulators (e.g., AMC1306) and shunt amplifier stages. Use Value: 15 µV_PP low-frequency noise prevents offset drift in motor phase current measurement, maintaining torque accuracy within ±0.3%.
Automotive DC/DC Converter	HEV On-Board Charger (OBC)
Use Scenario: Feedback voltage reference for 12 V/48 V bidirectional DC/DC converter in 48 V mild-hybrid architectures. IC Role / Device Role / Timing Role: Sets regulated output voltage via optocoupler feedback loop in isolated flyback controller. Use Value: ±0.05% initial accuracy eliminates need for post-manufacture trim resistors, reducing BOM count and test time.	Use Scenario: Reference for battery cell voltage monitoring and AC/DC power factor correction (PFC) controller in 6.6 kW OBC. IC Role / Device Role / Timing Role: Supplies stable 3.0 V reference to multi-channel SAR ADCs sampling battery pack voltages and grid current waveforms. Use Value: 30 ppm/1000 hrs long-term stability ensures <1 mV drift over 15-year vehicle lifetime, meeting OEM functional safety requirements.

ADAS Front Camera

Traction Inverter Control

Use Scenario: High-dynamic-range image sensor biasing in 8 MP automotive camera modules operating at −40°C to +105°C under hood.

IC Role / Device Role / Timing Role: Provides stable 3.0 V reference for column ADCs and analog signal chain gain blocks.

Use Value: 12 ppm/°C drift ensures <0.5 LSB gain error over full temperature range, enabling ISO 26262 ASIL-B compliance without per-unit calibration.

Use Scenario: Isolated gate driver bias and current-sense amplifier reference in 400 V traction inverter control boards.

IC Role / Device Role / Timing Role: Supplies precision 3.0 V reference to isolated sigma-delta modulators (e.g., AMC1306) and shunt amplifier stages.

Use Value: 15 µV_PP low-frequency noise prevents offset drift in motor phase current measurement, maintaining torque accuracy within ±0.3%.

Automotive DC/DC Converter

HEV On-Board Charger (OBC)

Use Scenario: Feedback voltage reference for 12 V/48 V bidirectional DC/DC converter in 48 V mild-hybrid architectures.

IC Role / Device Role / Timing Role: Sets regulated output voltage via optocoupler feedback loop in isolated flyback controller.

Use Value: ±0.05% initial accuracy eliminates need for post-manufacture trim resistors, reducing BOM count and test time.

Use Scenario: Reference for battery cell voltage monitoring and AC/DC power factor correction (PFC) controller in 6.6 kW OBC.

IC Role / Device Role / Timing Role: Supplies stable 3.0 V reference to multi-channel SAR ADCs sampling battery pack voltages and grid current waveforms.

Use Value: 30 ppm/1000 hrs long-term stability ensures <1 mV drift over 15-year vehicle lifetime, meeting OEM functional safety requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision voltage reference applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM4132A30IDBVRQ1	Same 3.0 V output, but 30 ppm/°C max tempco (B grade); 120 µA max IQ; no enable pin	Lacks shutdown mode and tighter drift spec - suitable only for non-power-sensitive, lower-accuracy subsystems	Select only if cost sensitivity outweighs drift and power requirements; not drop-in compatible due to missing EN pin
REF3430SQDBVRQ1	3.0 V output, 10 ppm/°C max drift, 85 µA max IQ, but requires minimum 3.3 V input (0.3 V dropout)	Higher input voltage requirement limits use in 3.3 V rail-limited modules; superior drift but less flexible supply range	Prefer when ultra-low drift dominates design priority and 3.3 V supply is guaranteed; pinout differs (SOT-23-6)

Compared with LM4132A30IDBVRQ1, REF4132A30DBVRQ1 adds enable control and halves temperature drift; versus REF3430SQDBVRQ1, it trades 2 ppm/°C lower drift for 0.2 V lower minimum input and SOT-23-5 pin compatibility - making it optimal for space- and supply-constrained automotive ECUs.

Availability

REF4132A30DBVRQ1 is available at Aetrix Electronics and suitable for ADAS front camera, traction inverter control, and automotive DC/DC converter designs requiring stable component supply across extended temperature and long product lifecycles.

Supply support for REF4132A30DBVRQ1 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 automotive-grade precision analog ICs.

REF4132A30DBVRQ1 belongs to TI's automotive-qualified voltage reference product line, designed specifically for high-reliability, low-drift biasing in safety-critical ADAS and powertrain systems operating from −40°C to +125°C.

FAQ

What is the maximum load current supported by the REF4132A30DBVRQ1?

The REF4132A30DBVRQ1 supports ±10 mA output current - meaning it can both source and sink up to 10 mA while maintaining specified accuracy and stability. This capability enables direct driving of ADC reference inputs, op-amp bias networks, and small DAC loads without external buffering. Exceeding ±10 mA may cause output voltage deviation beyond datasheet limits or thermal overload in high ambient conditions.

Does the REF4132A30DBVRQ1 require an external capacitor on the VREF pin?

Yes, the REF4132A30DBVRQ1 requires a minimum 0.1 µF ceramic capacitor (X5R/X7R) directly at the VREF pin for stability. The device is stable with output capacitance ranging from 0.1 µF to 10 µF. Larger values improve transient response but increase turn-on time; TI recommends pairing the 0.1 µF capacitor with a 1–10 µF bulk capacitor for optimal noise suppression and load step performance in automotive applications.

What is the function of the N/C pin on the REF4132A30DBVRQ1?

Pin 1 of the REF4132A30DBVRQ1 is labeled N/C (No Connect) and must remain unconnected - it has no internal bond wire or circuit connection. Routing, grounding, or pulling this pin affects neither functionality nor reliability, but violates TI's recommended layout and may introduce parasitic coupling in high-EMI environments. Always leave Pin 1 floating per the datasheet.

How does the enable (EN) pin operate on the REF4132A30DBVRQ1?

The EN pin on the REF4132A30DBVRQ1 controls active/shutdown mode: logic high (≥1.6 V) enables the reference output and draws ≤100 µA; logic low (≤0.5 V) disables output (high-Z state) and reduces quiescent current to ≤5 µA. The pin must never float or sit between 0.5 V and 1.6 V, as that causes unstable current draw and potential startup failure. Tie directly to VIN or MCU GPIO for reliable control.

Is the REF4132A30DBVRQ1 pin-compatible with the LM4132-Q1 family?

Yes, the REF4132A30DBVRQ1 is pin-to-pin compatible with LM4132-Q1 variants in the same SOT-23-5 (DBV) package, including identical pinout (N/C, GND, EN, VIN, VREF). However, REF4132A30DBVRQ1 adds the EN pin functionality and improves key specs: lower tempco (12 vs 30 ppm/°C), lower IQ (100 vs 120 µA max), and enhanced long-term stability (30 vs 50 ppm/1000 hrs), making it a direct upgrade path.

REF4132A30DBVRQ1 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):: 3V

Voltage - Output (Max):: -

Current - Output:: 10 mA

Tolerance:: ±0.05%

Temperature Coefficient:: 12ppm/°C

Noise - 0.1Hz to 10Hz:: 15µVp-p

Noise - 10Hz to 10kHz:: 24µVrms

Voltage - Input:: 3.05V ~ 5.5V

Current - Supply:: 100µA

Current - Cathode:: -

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-5

REF4132A30DBVRQ1 FAQ

1.How can I place an order for REF4132A30DBVRQ1 through Aetrix?

Please submit a Request for Quotation (RFQ) for REF4132A30DBVRQ1 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 REF4132A30DBVRQ1 reliable?

The price and inventory of REF4132A30DBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF4132A30DBVRQ1 is usually 5 days.

3.What payment methods are accepted for REF4132A30DBVRQ1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF4132A30DBVRQ1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for REF4132A30DBVRQ1?

REF4132A30DBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your REF4132A30DBVRQ1 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 REF4132A30DBVRQ1?

For technical support, including REF4132A30DBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF4132A30DBVRQ1 requirements.

6.How does Aetrix verify that REF4132A30DBVRQ1 is sourced from the original manufacturer or authorized distributors?

All REF4132A30DBVRQ1 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 REF4132A30DBVRQ1 meets industry standards.

7.What is the process for return or replacement of REF4132A30DBVRQ1?

All REF4132A30DBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with REF4132A30DBVRQ1, 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 REF4132A30DBVRQ1 part is unused and in its original packaging.

Return procedure for REF4132A30DBVRQ1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…