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Texas Instruments REF7030QFKHT
- Part No.:
- REF7030QFKHT
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 8-CLCC
- Datasheet:
-
REF7030QFKHT.pdf
- Description:
- IC VREF SERIES 8CLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,359
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Product details
Overview
REF7030QFKHT from Texas Instruments is a precision 3.0 V series voltage reference in an 8-pin LCCC hermetic ceramic package, delivering ±0.025% initial accuracy, 2 ppm/°C max temperature drift (−40°C to +125°C), 0.23 ppmp-p 0.1–10 Hz noise, and 400 mV dropout at 10 mA - designed for high-resolution data acquisition systems requiring stable excitation or reference in semiconductor test equipment and ultrasound analog front ends.
For engineers reviewing the REF7030QFKHT datasheet, REF7030QFKHT pinout, REF7030QFKHT application, or REF7030QFKHT equivalent, this page delivers verified specifications, validated LCCC pin functions, real-world use cases in medical and industrial instrumentation, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The REF7030QFKHT implements a low-noise bandgap-based series reference architecture with dual-output force-sense topology (OUTF/OUTS) to maintain regulation under varying load and PCB trace impedance. Its internal enable logic supports shutdown mode with ≤12 µA quiescent current and 1.6 V enable threshold.
It operates across −40°C to +125°C with guaranteed 2 ppm/°C drift and achieves 35 ppm long-term stability over 1000 hours at 35°C - enabled by humidity-resistant hermetic sealing and optimized die passivation. Input voltage range extends from 3.2 V (VOUT + VDO) up to 18 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V nominal, ±0.025% initial accuracy at 25°C - ensures <±750 µV absolute error before calibration. |
| Tempco | 2 ppm/°C maximum (−40°C to +125°C) - limits worst-case drift to ±350 µV over full industrial range. |
| Low-Frequency Noise | 0.23 ppmp-p (0.1–10 Hz) - enables 24-bit+ effective resolution in precision ADC applications. |
| Dropout Voltage | 400 mV at 10 mA load - allows operation from 3.2 V input, supporting low-voltage system rails. |
| PSRR | 107 dB at 1 kHz - suppresses supply ripple to sub-ppm level, critical for noise-sensitive signal chains. |
| Load Current | ±10 mA - supports direct driving of ADC references, op-amp biasing, and sensor excitation circuits. |
| Stable Capacitance | 1 µF to 100 µF output capacitor (low-ESR) - accommodates wide range of ceramic and polymer capacitors without oscillation. |
Pinout & Package
REF7030QFKHT uses an 8-pin LCCC (Leadless Ceramic Chip Carrier) package, 5.00 mm × 5.00 mm body size, hermetically sealed for humidity resistance and long-term drift stability. The package is RoHS-compliant and rated for −55°C to +150°C storage.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable control input | Active-high logic: ≥1.6 V enables output; ≤0.5 V disables into shutdown (≤12 µA IQ). |
| 2 - VIN | Power input | Accepts 3.2 V to 18 V; requires ≥0.1 µF decoupling capacitor to GND for noise immunity. |
| 3,4,5,8 - GND | Ground terminals | Four dedicated ground pins minimize ground loop impedance and improve PSRR/noise rejection. |
| 6 - OUTS | Sense input | Connects to load-side reference node to compensate for trace IR drop - enables remote sensing. |
| 7 - OUTF | Force output | Delivers regulated 3.0 V; must be connected to OUTS for local regulation or to load via separate trace for remote sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic LCCC packaging | Eliminates moisture-induced drift - achieves 35 ppm long-term stability over 1000 hours at 35°C. |
| Force-sense output architecture | Compensates for up to 100 mΩ trace resistance between OUTF and load, preserving regulation accuracy. |
| Ultra-low 1/f noise | 0.23 ppmp-p (0.1–10 Hz) - reduces noise floor contribution in DC-coupled precision measurement paths. |
| High PSRR at 1 kHz | 107 dB - attenuates switching regulator ripple by >500,000×, enabling clean reference in mixed-signal systems. |
| Wide input voltage range | 3.2 V to 18 V - supports direct connection to unregulated 5 V, 12 V, or battery-derived rails without pre-regulation. |
Applications
| Semiconductor Test Equipment | Ultrasound Scanner |
|---|---|
Use Scenario: High-speed parametric testing of ADCs/DACs requiring sub-ppm reference stability during thermal cycling. IC Role / Device Role / Timing Role: Primary voltage reference for DUT biasing and measurement excitation in ATE systems. Use Value: 2 ppm/°C drift and 35 ppm long-term stability eliminate need for frequent recalibration during multi-hour test sequences. |
Use Scenario: Analog front-end reference for beamforming ADCs in portable ultrasound transducers. IC Role / Device Role / Timing Role: Low-noise 3.0 V reference for 24-bit delta-sigma ADCs sampling RF echo signals. Use Value: 0.23 ppmp-p 1/f noise directly improves SNR by ≥2 dB in baseband signal processing, enhancing image resolution. |
| Precision Weight Scales | PLC Analog I/O Modules |
Use Scenario: Strain-gauge bridge excitation and ADC reference in Class III legal-for-trade weighing systems. IC Role / Device Role / Timing Role: Dual-role reference: supplies bridge excitation voltage and serves as ADC reference for ratiometric conversion. Use Value: Matched tempco between excitation and reference minimizes ratiometric error - maintains ±0.005% linearity over −10°C to +40°C ambient. |
Use Scenario: Isolated analog input channel reference in industrial PLC backplanes operating at 70°C ambient. IC Role / Device Role / Timing Role: Precision 3.0 V reference for 16-bit SAR ADCs digitizing 4–20 mA loop signals. Use Value: −40°C to +125°C rating and 2 ppm/°C drift ensure specification compliance across extended industrial temperature range without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF7030QDGKR | VSSOP-8 package (3.0 mm × 3.0 mm); 4.2 ppm/°C max drift (−40°C to +125°C); 75 ppm long-term stability (1000 h) | Higher drift and lower long-term stability; suitable for cost-sensitive, space-constrained designs where hermeticity is not required. | Select REF7030QDGKR only when board area is critical and long-term calibration intervals exceed 1 year. |
| ADR4530BRZ | SOIC-8 package; 3 ppm/°C max drift; 12 ppm/1000h long-term stability; 0.25 ppmp-p noise; no enable pin or force-sense outputs | Lacks EN and OUTF/OUTS - requires external buffering for remote sensing; better stability but less flexible routing. | Choose ADR4530BRZ when ultra-low long-term drift dominates over flexibility, and system design permits fixed-output configuration. |
Compared with REF7030QFKHT, REF7030QDGKR trades hermetic stability for smaller footprint and lower cost, while ADR4530BRZ offers superior aging performance but sacrifices programmability and remote sensing - making REF7030QFKHT optimal for high-reliability, field-deployed instrumentation demanding both precision and configurability.
Availability
REF7030QFKHT is available at Aetrix Electronics and suitable for semiconductor test equipment, ultrasound scanners, precision weight scales, and PLC analog I/O modules requiring stable component supply across extended temperature ranges and long service life.
Supply support for REF7030QFKHT 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 for industrial, automotive, and medical markets.
The REF70 family was engineered to address the noise, drift, and stability limitations of legacy references in high-resolution data converters - targeting test & measurement, medical imaging, and industrial control applications demanding <1 ppm total error budgets.
FAQ
What is the maximum operating temperature for REF7030QFKHT?
The REF7030QFKHT is fully specified from −40°C to +125°C ambient temperature, with all key parameters - including 2 ppm/°C drift, ±0.025% accuracy, and 0.23 ppmp-p noise - guaranteed across this range. Its LCCC package supports reliable operation up to +150°C storage temperature, making it suitable for under-hood or high-power industrial environments where thermal margins are tight.
Does REF7030QFKHT require an external capacitor on the output?
Yes, REF7030QFKHT requires an output capacitor between 1 µF and 100 µF (low-ESR ceramic or polymer) for stability, as confirmed in Section 7.7 of the datasheet. The device remains stable across this full range - unlike many references that demand narrow ESR windows - simplifying layout and enabling use with common X7R/X5R MLCCs without risk of oscillation.
How does the force-sense (OUTF/OUTS) configuration work in REF7030QFKHT?
In REF7030QFKHT, OUTF delivers the regulated 3.0 V, while OUTS connects to the load-side reference node. When OUTS is tied to OUTF, regulation occurs locally. When OUTS is routed to the load, the internal amplifier adjusts OUTF to maintain exact voltage at the remote point - compensating for voltage drop across PCB traces or connectors, which is essential for maintaining accuracy in distributed analog systems.
What is the dropout voltage of REF7030QFKHT at full load?
The dropout voltage of REF7030QFKHT is 400 mV at 10 mA load and −40°C to +125°C, meaning it regulates properly with as little as 3.2 V input (3.0 V + 0.4 V). This low dropout enables direct operation from 3.3 V rails with margin, and supports battery-powered instruments where input voltage sags under load - without requiring inefficient pre-regulation stages.
Is REF7030QFKHT pin-compatible with other REF70 variants?
Yes, all REF70 family members in the FKH (LCCC-8) package - including REF7025QFKHT, REF7030QFKHT, REF7033QFKHT, REF7040QFKHT, and REF7050QFKHT - share identical pinout, footprint, and electrical interface. Only the output voltage differs; no PCB redesign is needed when scaling reference voltage across system variants or during prototyping.
REF7030QFKHT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-CLCC
- 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:
- ±0.025%
- Temperature Coefficient:
- 2ppm/°C
- Noise - 0.1Hz to 10Hz:
- 0.23ppmp-p
- Noise - 10Hz to 10kHz:
- 0.35ppmrms
- Voltage - Input:
- 3.7V ~ 18V
- Current - Supply:
- 7.5mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-LCCC (5x5)
REF7030QFKHT FAQ
1.How can I place an order for REF7030QFKHT through Aetrix?
Please submit a Request for Quotation (RFQ) for REF7030QFKHT 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 REF7030QFKHT reliable?
The price and inventory of REF7030QFKHT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF7030QFKHT is usually 5 days.
3.What payment methods are accepted for REF7030QFKHT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF7030QFKHT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF7030QFKHT?
REF7030QFKHT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF7030QFKHT 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 REF7030QFKHT?
For technical support, including REF7030QFKHT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF7030QFKHT requirements.
6.How does Aetrix verify that REF7030QFKHT is sourced from the original manufacturer or authorized distributors?
All REF7030QFKHT 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 REF7030QFKHT meets industry standards.
7.What is the process for return or replacement of REF7030QFKHT?
All REF7030QFKHT units undergo pre-shipment inspection (PSI). If there is an issue with REF7030QFKHT, 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 REF7030QFKHT part is unused and in its original packaging.
Return procedure for REF7030QFKHT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
REF7030QFKHT Tags
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