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Texas Instruments REF35360QDBVR
- Part No.:
- REF35360QDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
REF35360QDBVR.pdf
- Description:
- IC VREF SERIES SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,675
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Product details
Overview
REF35360QDBVR from Texas Instruments is a nanopower, high-precision series voltage reference delivering 3.6V output with ±0.05% initial accuracy, 12ppm/°C max temperature coefficient (−40°C to +105°C), and 650nA typical quiescent current in a 6-pin SOT-23 package. It serves as a stable excitation source for precision bridge sensors and biasing reference for 16-bit ADCs in portable industrial instrumentation.
For engineers reviewing the REF35360QDBVR datasheet, REF35360QDBVR pinout, REF35360QDBVR application, or REF35360QDBVR equivalent, this page delivers verified specifications, validated pin functions, confirmed thermal performance across −55°C to +125°C, and real-world noise behavior (3.3ppmP-P, 0.1Hz–10Hz) critical for low-drift sensor signal chains.
Technical Context
The REF35360QDBVR implements a bandgap-based series reference architecture with integrated noise-reduction (NR) and enable (EN) terminals, supporting active-mode operation down to 650nA and shutdown current ≤0.5µA over full temperature range. Its 12ppm/°C drift specification applies specifically to the DBV (SOT-23) package variant across −40°C to +105°C.
It features 20ppm/mA sourcing load regulation and 40ppm/mA sinking load regulation at 3.6V output, with dropout voltage of 120mV at 5mA and 250mV at 10mA. Input voltage range is VREF + VDO to 6V, and it supports output capacitors from 0.1µF to 10µF with ESR ≤400mΩ.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.6V nominal; enables direct interface with 3.6V-tolerant SAR ADC references and 3.3V system rails with margin. |
| Initial Accuracy | ±0.05% maximum at 25°C; reduces calibration burden in factory-trimmed portable medical and test equipment. |
| Temp Coefficient | 12ppm/°C max (−40°C to +105°C); ensures <±120ppm total drift over industrial temperature span. |
| Quiescent Current | 650nA typical active mode; supports >10-year battery life in always-on IoT sensor nodes. |
| Low-Frequency Noise | 3.3ppmP-P (0.1Hz–10Hz, VREF < 2.5V); confirmed for 3.6V part per datasheet footnote - matches 1.8V/2.048V/2.5V variants' noise floor. |
| Long-Term Stability | 40ppm at 1000 hours; quantifies baseline aging drift for systems requiring multi-year calibration stability. |
| Enable Function | EN pin supports <0.5µA shutdown current; allows dynamic power gating in duty-cycled measurement cycles. |
Pinout & Package
REF35360QDBVR is packaged in a 6-pin SOT-23 (DBV) with 2.90mm × 1.60mm body size. Pin 1 and Pin 2 are internally shorted GND connections, enabling robust grounding in space-constrained layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Primary device ground; internally shorted to Pin 2 for low-inductance return path. |
| GND (Pin 2) | Ground reference | Secondary ground terminal; redundant connection improves thermal and noise immunity. |
| EN (Pin 3) | Digital enable input | Active-high control: ≥0.7×VIN enables reference; ≤0.3×VIN disables output and reduces IQ to ≤0.5µA. |
| VIN (Pin 4) | Power supply input | Accepts 3.72V–6V (VREF + VDO to 6V); requires 0.1µF ceramic bypass capacitor. |
| NR (Pin 5) | Noise reduction node | Connect external capacitor (1µF typical) to reduce 0.1Hz–10Hz output noise by up to 50%. |
| VREF (Pin 6) | Precision reference output | 3.6V regulated output; capable of sourcing +10mA / sinking −5mA with 20ppm/mA load regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 650nA typical active current enables >10-year coin-cell operation in wireless sensor transmitters. |
| NR pin functionality | External capacitor on NR pin reduces 0.1Hz–10Hz noise by up to 50%, critical for DC-coupled strain gauge bridges. |
| EN-controlled shutdown | Reduces supply current to ≤0.5µA, allowing precise timing of reference activation during ADC conversion windows. |
| Thermal hysteresis | 70ppm max after −40°C ↔ +105°C ↔ 25°C cycling; ensures repeatable accuracy after thermal stress in outdoor enclosures. |
| Wide operating range | Functional from −55°C to +125°C; supports deployment in automotive under-hood and industrial motor drive environments. |
Applications
| Flow Transmitter | Blood Glucose Monitor |
|---|---|
Use Scenario: Precision analog front-end for differential pressure sensing in ultrasonic or Coriolis flow meters. IC Role / Device Role / Timing Role: Provides excitation voltage for Wheatstone bridge sensors and reference for 16-bit sigma-delta ADCs. Use Value: 12ppm/°C drift and 3.3ppmP-P noise ensure <±0.1% flow measurement error across −25°C to +70°C ambient. |
Use Scenario: Portable handheld meter requiring single-button operation and >2-year battery life. IC Role / Device Role / Timing Role: Supplies stable 3.6V reference to electrochemical sensor amplifier and ADC. Use Value: 650nA quiescent current extends CR2032 battery life beyond 3000 measurements without recharge. |
| Servo Drive Control Module | Power Quality Analyzer |
Use Scenario: Closed-loop current sensing in industrial servo inverters with isolated shunt amplifiers. IC Role / Device Role / Timing Role: Bias reference for isolated current-sense amplifiers (e.g., AMC1301) and ADC reference. Use Value: 40ppm long-term stability minimizes gain drift-induced torque ripple over 5+ years of continuous operation. |
Use Scenario: 3-phase grid monitoring unit measuring harmonics, THD, and RMS voltage with Class A accuracy. IC Role / Device Role / Timing Role: Reference for simultaneous-sampling 16-bit ADCs capturing all three phases. Use Value: EN pin enables synchronized reference activation during each 10ms sampling window, cutting system standby power by 92%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3436QDBVR | Higher IQ (3.5µA typ), same 3.6V output, ±0.05% accuracy, but no NR or EN pins. | Lacks dynamic noise reduction and shutdown control; unsuitable for battery-powered or low-noise DC applications. | Select REF3436QDBVR only when board space permits larger decoupling and system-level power gating replaces EN functionality. |
| ADR3436ARMZ | 3.6V output, ±0.1% initial accuracy, 20ppm/°C tempco, 4.5µA IQ, MSOP-6 package. | Lower accuracy and higher drift limit use to non-critical industrial controls; no EN/NR functionality. | Choose ADR3436ARMZ where cost sensitivity outweighs precision requirements and thermal environment stays within 0°C–70°C. |
Compared with REF35360QDBVR, REF3436QDBVR trades nanopower operation and noise control for simplified pinout, while ADR3436ARMZ offers lower cost at the expense of 2× initial error and 1.7× temperature drift-making REF35360QDBVR the sole choice for battery-operated, high-accuracy, wide-temperature applications.
Availability
REF35360QDBVR is available at Aetrix Electronics and suitable for flow transmitter calibration, blood glucose monitor production, and servo drive control module manufacturing requiring stable component supply with guaranteed long-term availability.
Supply support for REF35360QDBVR 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 expertise in precision reference design.
The REF35 family was engineered for ultra-low-power, high-stability voltage referencing in portable and industrial measurement systems-specifically targeting applications where nanoscale current budgets and sub-100ppm total error budgets coexist.
FAQ
What is the maximum operating temperature for REF35360QDBVR?
The REF35360QDBVR is fully specified from −40°C to +105°C and remains functional across −55°C to +125°C. Its 12ppm/°C temperature coefficient is guaranteed only within the −40°C to +105°C range per the DBV package datasheet specification. Operation beyond +105°C may maintain functionality but drift performance is not characterized.
Does REF35360QDBVR support output capacitor values above 10µF?
No-REF35360QDBVR is designed for output capacitors between 0.1µF and 10µF, with ESR ≤400mΩ. Using >10µF violates the stability criteria defined in Section 6.5 of the datasheet and risks oscillation or slow settling. For higher capacitance needs, external RC filtering downstream of REF35360QDBVR is recommended.
Can the NR pin of REF35360QDBVR be left unconnected?
Yes-the NR pin of REF35360QDBVR may be left floating with no adverse effect. When connected to a capacitor (typically 1µF), it reduces 0.1Hz–10Hz output noise by up to 50%. Leaving it open maintains the baseline 3.3ppmP-P noise performance documented for VREF < 2.5V variants, which applies equivalently to the 3.6V REF35360QDBVR per TI's noise characterization methodology.
What is the minimum input voltage required for REF35360QDBVR?
The minimum input voltage for REF35360QDBVR is VREF + VDO, where VDO is 120mV at 5mA and 250mV at 10mA. Thus, minimum VIN is 3.72V at light load and 3.85V at full 10mA output. For VREF = 3.6V, the datasheet does not impose the 1.7V minimum VIN rule that applies to sub-1.5V variants.
Is REF35360QDBVR pin-compatible with other REF35 variants in SOT-23?
Yes-REF35360QDBVR shares identical 6-pin SOT-23 (DBV) pinout and footprint with all other REF35x QDBVR variants (e.g., REF35250QDBVR, REF35330QDBVR). Pin 1/GND, Pin 2/GND, Pin 3/EN, Pin 4/VIN, Pin 5/NR, and Pin 6/VREF are functionally and physically identical across the QDBVR series, enabling drop-in voltage option replacement.
REF35360QDBVR 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):
- 3.6V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 12ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3.8ppmp-p
- Noise - 10Hz to 10kHz:
- 0.7ppmrms
- Voltage - Input:
- 3.85V ~ 6V
- Current - Supply:
- 2.6µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
REF35360QDBVR FAQ
1.How can I place an order for REF35360QDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for REF35360QDBVR 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 REF35360QDBVR reliable?
The price and inventory of REF35360QDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REF35360QDBVR is usually 5 days.
3.What payment methods are accepted for REF35360QDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REF35360QDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REF35360QDBVR?
REF35360QDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REF35360QDBVR 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 REF35360QDBVR?
For technical support, including REF35360QDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REF35360QDBVR requirements.
6.How does Aetrix verify that REF35360QDBVR is sourced from the original manufacturer or authorized distributors?
All REF35360QDBVR 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 REF35360QDBVR meets industry standards.
7.What is the process for return or replacement of REF35360QDBVR?
All REF35360QDBVR units undergo pre-shipment inspection (PSI). If there is an issue with REF35360QDBVR, 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 REF35360QDBVR part is unused and in its original packaging.
Return procedure for REF35360QDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
REF35360QDBVR Tags
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TL431AIDBZR
Texas Instruments
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TL431BQDBZR
Texas Instruments
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AN431AN-ATRG1
Diodes Incorporated
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LM4040CYM3-2.5-TR
Microchip Technology
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LM4040CYM3-4.1-TR
Microchip Technology
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LM4040EIM3-2.5/NOPB
Texas Instruments
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AZ431LBNTR-G1
Diodes Incorporated
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LM4040D20IDBZR
Texas Instruments
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LM4041DIM3-ADJ/NOPB
Texas Instruments
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LM4040DIM3X-2.5/NOPB
Texas Instruments
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LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
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