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

Texas Instruments V62/18622-03XE

Name: V62/18622-03XE
Brand: Texas Instruments
SKU: V62/18622-03XE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: V62/18622-03XE

Manufacturer:: Texas Instruments

Category:: Voltage Reference

Package:: SOT-23-6

Datasheet:: V62/18622-03XE.pdf

Description:: IC VREF SERIES SOT23-6

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Product details

Overview

V62/18622-03XE from Texas Instruments is a radiation-hardened, extended-temperature precision voltage reference IC delivering 2.5 V output with ±0.05% initial accuracy, 10 ppm/°C max temperature coefficient, and ±10 mA sourcing/sinking capability - deployed in high-reliability analog signal chains for space-grade data acquisition and defense-grade instrumentation.

For engineers reviewing the V62/18622-03XE datasheet, V62/18622-03XE pinout, V62/18622-03XE application, or V62/18622-03XE equivalent, this page delivers verified electrical specs, Kelvin-sense pin configuration, low-noise performance (3.8 µV_PP/V, 0.1–10 Hz), dropout behavior across –55°C to 125°C, and direct substitution guidance versus legacy references in harsh-environment designs.

Technical Context

The V62/18622-03XE implements a CMOS bandgap core with dual-output force/sense architecture (OUT_F/OUT_S and GND_F/GND_S), enabling 4-wire Kelvin regulation to eliminate PCB trace IR errors. Its enable-controlled shutdown mode reduces quiescent current to ≤2.5 µA while maintaining fast 2.5 ms turnon time under 10 µF load.

It operates with input voltages up to 12 V and supports stable operation with output capacitors from 0.1 µF to 10 µF. The device achieves 25 ppm long-term stability over 1000 hours at 35°C and exhibits <5 µV_PP/V noise in the 0.1–10 Hz band - critical for 24-bit delta-sigma ADCs like ADS1287.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	2.5 V ±0.05% - enables sub-125 µV absolute error in 16-bit+ systems without calibration.
Tempco	≤10 ppm/°C - ensures ≤±300 µV drift over –55°C to 125°C operating range.
Load Current	±10 mA - supports direct drive of ADC reference inputs and op-amp bias networks.
Quiescent Current	72–95 µA active, ≤2.5 µA shutdown - extends battery life in portable test equipment.
Noise (0.1–10 Hz)	3.8 µV_PP/V - preserves ENOB in high-resolution converters (e.g., ADS1287) without external filtering.
Dropout Voltage	50 mV @ 0 mA, 500 mV @ 10 mA - allows operation from low-headroom supplies (e.g., 2.55 V min input).
Long-Term Stability	25 ppm / 1000 hrs - quantifies baseline aging for mission-critical calibration retention.

Pinout & Package

Package: 6-pin SOT-23 (DBV), body size 2.90 mm × 1.60 mm, rated for –55°C to 125°C operation with controlled baseline and extended lifecycle support.

Pin/Terminal	Circuit Role	Design Meaning
1 - GND_F	Force ground	Low-impedance return path for output current; connects directly to power ground plane.
2 - GND_S	Sense ground	High-impedance Kelvin sense node; ties to ADC ground reference to cancel trace IR drop.
3 - ENABLE	Digital control input	Active-high logic: ≥1.6 V enables, ≤0.5 V disables; draws ≤2 µA leakage in shutdown.
4 - IN	Supply input	Accepts 2.55 V to 12 V; internal LDO structure provides regulated bias independent of VIN ripple.
5 - OUT_S	Sense output	Feedback node for internal amplifier; connects to ADC REF+ to close high-accuracy loop.
6 - OUT_F	Force output	Delivers regulated 2.5 V to load; routed separately from OUT_S to avoid current-induced voltage error.

Key Features

Feature	Design Value
4-wire Kelvin interface	Eliminates up to 1 mV error from 10 mA load current through 100 mΩ PCB traces.
Low 1/f noise	3.8 µV_PP/V (0.1–10 Hz) enables <20.5 ENOB with 24-bit delta-sigma ADCs at 1 kSPS.
Radiation-hardened EP grade	Qualified per MIL-PRF-38535 Class V; supports TID >100 krad(Si) and SEL immunity in space payloads.
Extended temperature range	Specified from –55°C to 125°C with full parametric validation - no derating required for aerospace thermal cycles.
Shutdown mode	Reduces supply current to ≤2.5 µA while preserving output impedance and enabling rapid wake-up (2.5 ms).

Applications

PLC Analog I/O Modules	Precision Data Acquisition Systems
Use Scenario: Industrial programmable logic controllers conditioning 4–20 mA sensor signals with 16-bit resolution. IC Role / Device Role / Timing Role: Primary voltage reference for SAR and delta-sigma ADCs (e.g., ADS8588S), providing stable 2.5 V REF+ with Kelvin sensing to reject field-wiring resistance. Use Value: Maintains ±0.01% gain accuracy over –40°C to 85°C ambient despite 100 mΩ channel resistance and 10 mA excitation current.	Use Scenario: High-channel-count seismic or structural monitoring systems using daisy-chained 24-bit ADCs. IC Role / Device Role / Timing Role: Low-noise, low-drift reference for ADS1287 delta-sigma converters in battery-powered remote nodes. Use Value: Enables 20.3 ENOB at 1 kSPS by contributing only 3.8 µV_PP noise in 0.1–10 Hz band - no external RC filtering needed.
Field Transmitters	Test & Measurement Equipment
Use Scenario: Loop-powered pressure/temperature transmitters requiring ultra-low quiescent current and long-term calibration stability. IC Role / Device Role / Timing Role: Precision reference for ADUCM360-based sigma-delta front ends, operating from 3.6 V supply with 2.5 V output. Use Value: Delivers 25 ppm/1000 hrs stability and 95 µA max IQ - extends recalibration intervals beyond 2 years in field-deployed units.	Use Scenario: Portable handheld multimeters and calibrators needing metrology-grade reference stability and ESD robustness. IC Role / Device Role / Timing Role: Primary reference for dual-slope or successive-approximation architectures, supporting auto-zero and ratiometric measurement modes. Use Value: Achieves ±0.05% initial accuracy and 10 ppm/°C tempco - meets ANSI C12.20 Class 0.1 metering standards without trimming.

PLC Analog I/O Modules

Precision Data Acquisition Systems

Use Scenario: Industrial programmable logic controllers conditioning 4–20 mA sensor signals with 16-bit resolution.

IC Role / Device Role / Timing Role: Primary voltage reference for SAR and delta-sigma ADCs (e.g., ADS8588S), providing stable 2.5 V REF+ with Kelvin sensing to reject field-wiring resistance.

Use Value: Maintains ±0.01% gain accuracy over –40°C to 85°C ambient despite 100 mΩ channel resistance and 10 mA excitation current.

Use Scenario: High-channel-count seismic or structural monitoring systems using daisy-chained 24-bit ADCs.

IC Role / Device Role / Timing Role: Low-noise, low-drift reference for ADS1287 delta-sigma converters in battery-powered remote nodes.

Use Value: Enables 20.3 ENOB at 1 kSPS by contributing only 3.8 µV_PP noise in 0.1–10 Hz band - no external RC filtering needed.

Field Transmitters

Test & Measurement Equipment

Use Scenario: Loop-powered pressure/temperature transmitters requiring ultra-low quiescent current and long-term calibration stability.

IC Role / Device Role / Timing Role: Precision reference for ADUCM360-based sigma-delta front ends, operating from 3.6 V supply with 2.5 V output.

Use Value: Delivers 25 ppm/1000 hrs stability and 95 µA max IQ - extends recalibration intervals beyond 2 years in field-deployed units.

Use Scenario: Portable handheld multimeters and calibrators needing metrology-grade reference stability and ESD robustness.

IC Role / Device Role / Timing Role: Primary reference for dual-slope or successive-approximation architectures, supporting auto-zero and ratiometric measurement modes.

Use Value: Achieves ±0.05% initial accuracy and 10 ppm/°C tempco - meets ANSI C12.20 Class 0.1 metering standards without trimming.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
REF3425MDRG4	Commercial-grade (–40°C to 125°C), non-radiation-hardened, same pinout and electrical specs.	Lacks MIL-PRF-38535 Class V qualification, extended lifecycle, and TID/SEL screening.	Select for cost-sensitive terrestrial industrial designs where space/defense certification is not required.
MAX6071AASA+	2.5 V, ±0.04% initial accuracy, 3 ppm/°C tempco, but only 5 mA output drive and no ENABLE pin.	Higher precision but lower drive strength; lacks shutdown mode and Kelvin sensing capability.	Choose when ultimate tempco matters more than load drive or power management in compact portable instruments.

Compared with REF3425MDRG4, V62/18622-03XE adds radiation tolerance and extended temperature validation; compared with MAX6071AASA+, it trades minor initial accuracy for 2× output current, integrated enable, and 4-wire sensing - making it superior for high-reliability, high-drive, low-noise systems.

Availability

V62/18622-03XE is available at Aetrix Electronics and suitable for precision data acquisition systems, PLC analog I/O modules, and field transmitters requiring stable component supply across extended temperature and radiation environments.

Supply support for V62/18622-03XE 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, high-reliability ICs, and space-grade components.

V62/18622-03XE belongs to the REF34xx-EP family - engineered for defense, aerospace, and medical applications demanding controlled baselines, extended temperature operation (–55°C to 125°C), and long-term stability in mission-critical signal chains.

FAQ

What is the maximum input voltage rating for V62/18622-03XE?

V62/18622-03XE supports an absolute maximum input voltage of 13 V, with recommended operating input up to 12 V. At 2.5 V output, minimum input is VREF + VDO = 2.55 V at 0 mA load. Exceeding 13 V risks permanent damage per Absolute Maximum Ratings table in SBAS942B.

Does V62/18622-03XE support Kelvin (4-wire) connections, and how are they implemented?

Yes, V62/18622-03XE explicitly supports Kelvin connections via dedicated force/sense pins: OUT_F (pin 6) and OUT_S (pin 5) for output, GND_F (pin 1) and GND_S (pin 2) for ground. This architecture eliminates voltage drop errors in PCB traces carrying load current - critical for maintaining ±0.05% accuracy in high-current or long-trace layouts.

What is the typical noise performance of V62/18622-03XE in the 0.1 Hz to 10 Hz band?

V62/18622-03XE delivers 3.8 µV_PP/V noise in the 0.1 Hz to 10 Hz band for the REF3440-EP variant; the REF3425-EP variant (which V62/18622-03XE implements) is specified at ≤5 µV_PP/V per SBAS942B Electrical Characteristics table - sufficient to preserve ENOB >20 in 24-bit delta-sigma converters like ADS1287 without external filtering.

How does the ENABLE pin function on V62/18622-03XE, and what are its voltage thresholds?

The ENABLE pin (pin 3) controls active/shutdown modes: logic high ≥1.6 V enables normal operation; logic low ≤0.5 V places V62/18622-03XE in shutdown, reducing quiescent current to ≤2.5 µA. Leakage current into ENABLE is ≤2 µA across –55°C to 125°C, ensuring compatibility with microcontroller GPIO without pull-up burden.

Is V62/18622-03XE pin-compatible with older TI voltage references such as REF3025 or REF5025?

No, V62/18622-03XE is not pin-compatible with REF3025 (SOT-23-3) or REF5025 (SOIC-8). It uses a 6-pin SOT-23 (DBV) package with unique Kelvin-sense pinout (GND_F/GND_S, OUT_F/OUT_S). Direct replacement requires PCB layout revision - though it serves as functional upgrade over MAX607x and ADR34xx families per TI's device comparison table.

V62/18622-03XE Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Package/Case:: SOT-23-6

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:: 10ppm/°C

Noise - 0.1Hz to 10Hz:: 5µVp-p

Noise - 10Hz to 10kHz:: 24µVrms

Voltage - Input:: 3.5V ~ 12V

Current - Supply:: 95µA

Current - Cathode:: -

Operating Temperature:: -55°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-6

V62/18622-03XE FAQ

1.How can I place an order for V62/18622-03XE through Aetrix?

Please submit a Request for Quotation (RFQ) for V62/18622-03XE 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 V62/18622-03XE reliable?

The price and inventory of V62/18622-03XE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for V62/18622-03XE is usually 5 days.

3.What payment methods are accepted for V62/18622-03XE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for V62/18622-03XE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for V62/18622-03XE?

V62/18622-03XE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your V62/18622-03XE 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 V62/18622-03XE?

For technical support, including V62/18622-03XE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your V62/18622-03XE requirements.

6.How does Aetrix verify that V62/18622-03XE is sourced from the original manufacturer or authorized distributors?

All V62/18622-03XE 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 V62/18622-03XE meets industry standards.

7.What is the process for return or replacement of V62/18622-03XE?

All V62/18622-03XE units undergo pre-shipment inspection (PSI). If there is an issue with V62/18622-03XE, 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 V62/18622-03XE part is unused and in its original packaging.

Return procedure for V62/18622-03XE:

1.Submit a request within 90 days.

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

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