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Texas Instruments REF2030QDDCRQ1
- Part No.:
- REF2030QDDCRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
REF2030QDDCRQ1.pdf
- Description:
- IC VREF SERIES 0.05% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,776
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Product details
Overview
REF2030QDDCRQ1 from Texas Instruments is an AEC-Q100 Grade 1 (–40°C to +125°C) dual-output precision voltage reference IC delivering VREF = 3.0 V and VBIAS = 1.5 V with ±0.05% initial accuracy, 8 ppm/°C max temperature drift, and ±20 mA bidirectional output current capability. It serves as a stable reference and bias source for high-accuracy ADC signal conditioning in automotive powertrain and battery sensing systems.
For engineers reviewing the REF2030QDDCRQ1 datasheet, REF2030QDDCRQ1 pinout, REF2030QDDCRQ1 application, or REF2030QDDCRQ1 equivalent, this page delivers verified specifications, validated automotive-grade performance data, confirmed SOT23-5 package mapping, and real-world functional safety context - all directly traceable to TI's SBOSA80 production datasheet.
Technical Context
The REF2030QDDCRQ1 implements a band-gap core with e-Trim™ package-level calibration to achieve simultaneous high initial accuracy and low temperature drift on both outputs. Its dual-buffer architecture ensures VREF and VBIAS derive from the same core voltage, enabling 7 ppm/°C max tracking over –40°C to +125°C.
It operates in active mode when EN ≥ VIN – 0.7 V and enters shutdown (5 µA IQ) when EN < 0.7 V, supporting low-power system sequencing. The 10 mV dropout enables operation from input voltages as low as VREF + 20 mV under full load, critical for battery-supplied automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VREF Output | 3.0 V nominal, used as primary ADC reference voltage |
| VBIAS Output | 1.5 V nominal (exactly VREF / 2), used to bias bipolar ADC inputs in single-supply systems |
| Initial Accuracy | ±0.05% max - guarantees ≤ ±1.5 mV absolute error at 25°C without calibration |
| Temp Drift (VREF/VBIAS) | 8 ppm/°C max over –40°C to +125°C - contributes ≤ ±1.2 ppm total error across full range |
| VREF–VBIAS Tracking | 7 ppm/°C max - ensures differential tracking error remains ≤ ±1.05 ppm/°C for matched signal paths |
| Output Current | ±20 mA per output - supports direct drive of ADC reference inputs and op-amp bias networks |
| Quiescent Current | 360 µA typical in active mode - enables low-power always-on monitoring in telematics and BMS |
Pinout & Package
SOT23-5 package (2.90 mm × 1.60 mm body size), thermally optimized for automotive PCB layouts with low RθJA (193.6°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VBIAS | Output | Provides 1.5 V bias voltage; sinks/sources ±20 mA; matches VREF drift within 7 ppm/°C |
| 2 - GND | Reference | System ground return for both outputs and enable logic; requires low-impedance connection |
| 3 - EN | Input | Active-high enable: device enabled when ≥ VIN – 0.7 V; shutdown draws only 5 µA |
| 4 - VIN | Input | Supply input (min VREF + 0.02 V); supports operation down to 3.02 V at full load due to 10 mV dropout |
| 5 - VREF | Output | Primary 3.0 V reference output; identical accuracy/drift specs to VBIAS; drives ADC VREF pins directly |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with HBM ±2500 V and CDM ±1500 V ESD robustness |
| e-Trim™ calibration | Package-level trimming post-molding minimizes die stress effects, achieving ±0.05% initial accuracy and 8 ppm/°C drift |
| Dual-output tracking | VREF and VBIAS share same band-gap core and buffer topology, guaranteeing 7 ppm/°C max tracking error over full temp range |
| Low dropout & wide supply range | 10 mV dropout enables use with 3.02 V minimum input; supports up to 5.5 V VIN for flexibility in 3.3 V/5 V systems |
| Functional safety support | Documentation available (FIT rate, failure modes, diagnostic coverage) to aid ISO 26262 ASIL-B system design |
Applications
| Telematics Control Unit | Battery Management System |
|---|---|
Use Scenario: High-precision voltage and current sensing in LTE/V2X gateway modules requiring stable reference under wide thermal and supply variation. IC Role / Device Role / Timing Role: Provides VREF for SAR ADC sampling and VBIAS for differential input biasing of isolated current-sense amplifiers. Use Value: Enables ±0.05% measurement accuracy across –40°C to +105°C operating range without recalibration. |
Use Scenario: Cell voltage monitoring and pack current sensing in 48 V mild-hybrid BMS with extended temperature requirements. IC Role / Device Role / Timing Role: Supplies matched 3.0 V / 1.5 V references to multi-channel delta-sigma ADCs for simultaneous cell voltage and shunt current acquisition. Use Value: 7 ppm/°C VREF–VBIAS tracking eliminates common-mode drift errors in ratiometric measurements. |
| Inverter Motor Control | On-Board Charger |
Use Scenario: Phase current sensing and DC-link voltage monitoring in traction inverters where EMC and thermal stability are critical. IC Role / Device Role / Timing Role: Delivers low-noise, low-drift reference pair to isolated sigma-delta modulators feeding FPGA-based motor control loops. Use Value: 12 ppmPP low-frequency noise and 0.25 ppm/√Hz noise density preserve dynamic range in high-resolution current reconstruction. |
Use Scenario: Voltage regulation feedback and battery voltage sensing in bi-directional AC/DC OBC converters operating across 0°C–85°C ambient. IC Role / Device Role / Timing Role: Supplies reference and bias to precision op-amps in isolated voltage divider networks and ADC front-ends. Use Value: 360 µA quiescent current and 10 mV dropout allow direct connection to auxiliary 3.3 V rail without LDO overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF2025QDDCRQ1 | Outputs 2.5 V / 1.25 V; identical accuracy (±0.05%), drift (8 ppm/°C), and package; lower VREF reduces headroom in 3.3 V systems | Used where 2.5 V ADC reference is required (e.g., legacy sensor interfaces); not drop-in for 3.0 V designs | Select when system ADC full-scale is 2.5 V and VBIAS = 1.25 V satisfies input bias requirements |
| REF2033QDDCRQ1 | Outputs 3.3 V / 1.65 V; same AEC-Q100 Grade 1 rating and tracking spec; 3.3 V VREF increases noise margin but raises dropout sensitivity | Preferred in 3.3 V microcontroller-based systems where higher reference improves SNR; requires ≥3.32 V VIN min | Choose for new 3.3 V domain designs needing maximum ADC resolution; verify input supply裕度 against 10 mV dropout |
Compared with REF2025QDDCRQ1 and REF2033QDDCRQ1, the REF2030QDDCRQ1 provides optimal balance of headroom, noise immunity, and compatibility with 3.0 V ADCs commonly used in automotive analog front-ends - making it the default selection for next-generation BMS and motor control signal chains.
Availability
REF2030QDDCRQ1 is available at Aetrix Electronics and suitable for telematics control units, battery management systems, and inverter motor control applications requiring stable component supply with AEC-Q100 compliance and long-term automotive lifecycle support.
Supply support for REF2030QDDCRQ1 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 leader specializing in analog and embedded processing technologies, with decades of automotive qualification expertise and broad portfolio of AEC-Q100-compliant components.
The REF20xx-Q1 product line was designed specifically for high-accuracy, dual-rail voltage referencing in automotive signal chains - targeting ADC biasing, current-sense amplifier references, and ratiometric sensor interfaces where VREF/VBIAS tracking is critical.
FAQ
What is the maximum operating temperature range for the REF2030QDDCRQ1?
The REF2030QDDCRQ1 is qualified to AEC-Q100 Grade 1, supporting continuous operation from –40°C to +125°C ambient temperature. Its internal thermal protection and 150°C absolute maximum junction temperature rating ensure reliability in under-hood automotive environments such as power distribution boxes and on-board chargers.
Does the REF2030QDDCRQ1 require external capacitors for stability?
Yes - the REF2030QDDCRQ1 is stable with output capacitors from 0 µF to 10 µF. A 1 µF ceramic capacitor is recommended at each output (VREF and VBIAS) to minimize noise and improve transient response, especially in motor control applications with fast-switching loads.
How does the enable (EN) pin function on the REF2030QDDCRQ1?
The EN pin is an active-high digital input: the REF2030QDDCRQ1 enters active mode when EN ≥ VIN – 0.7 V and shuts down (5 µA IQ) when EN < 0.7 V. This allows precise power sequencing in multi-rail automotive systems without external logic, and supports low-power sleep states in telematics modules.
Can the REF2030QDDCRQ1 drive an ADC reference input directly?
Yes - the REF2030QDDCRQ1 delivers ±20 mA per output and maintains ±0.05% accuracy with 8 ppm/°C drift, enabling direct connection to most SAR and delta-sigma ADC VREF pins. Its 10 mV dropout and low output impedance (< 0.1 Ω) ensure minimal loading error even at full 20 mA draw.
What is the purpose of the VBIAS output in the REF2030QDDCRQ1?
The VBIAS output delivers exactly half the VREF voltage (1.5 V when VREF = 3.0 V) and tracks it within 7 ppm/°C over temperature. It is engineered to bias bipolar input signals in single-supply ADC systems - eliminating the need for external resistor dividers and ensuring matched thermal behavior between reference and bias paths in the REF2030QDDCRQ1.
REF2030QDDCRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 1.5V, 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 8ppm/°C
- Noise - 0.1Hz to 10Hz:
- 12ppmp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 2.28V ~ 5.5V
- Current - Supply:
- 460µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
REF2030QDDCRQ1 FAQ
1.How can I place an order for REF2030QDDCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for REF2030QDDCRQ1 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 REF2030QDDCRQ1 reliable?
The price and inventory of REF2030QDDCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF2030QDDCRQ1 is usually 5 days.
3.What payment methods are accepted for REF2030QDDCRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF2030QDDCRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF2030QDDCRQ1?
REF2030QDDCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF2030QDDCRQ1 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 REF2030QDDCRQ1?
For technical support, including REF2030QDDCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF2030QDDCRQ1 requirements.
6.How does Aetrix verify that REF2030QDDCRQ1 is sourced from the original manufacturer or authorized distributors?
All REF2030QDDCRQ1 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 REF2030QDDCRQ1 meets industry standards.
7.What is the process for return or replacement of REF2030QDDCRQ1?
All REF2030QDDCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with REF2030QDDCRQ1, 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 REF2030QDDCRQ1 part is unused and in its original packaging.
Return procedure for REF2030QDDCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
REF2030QDDCRQ1 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
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